Maryland Home Improvement Contractor (MHIC) Exam — Questions and Answers

Question 1: A homeowner files a claim against the Maryland Home Improvement Guaranty Fund after a contractor abandons a $28,000 project. The fund pays the homeowner $22,000. The contractor later renews their MHIC license. Which of the following is TRUE regarding the fund's subrogation rights?

The fund has no further claim against the contractor once payment is made; the homeowner's recourse ends at the fund
The fund may pursue the contractor only for the difference between what was paid and the statutory maximum, not the full $22,000
The fund is subrogated to the homeowner's rights and may pursue the contractor for the $22,000 paid, and the contractor's license renewal may be denied until reimbursement is made (Correct answer)
The fund's subrogation rights expire 12 months after the claim payment date

Correct answer: The fund is subrogated to the homeowner's rights and may pursue the contractor for the $22,000 paid, and the contractor's license renewal may be denied until reimbursement is made

The Maryland Home Improvement Guaranty Fund is subrogated to the rights of the claimant upon payment. This means the fund can pursue the contractor for the full amount paid. Additionally, Maryland law makes reimbursement to the fund a condition for license reinstatement or renewal—a contractor whose default triggered a fund payment cannot renew until the debt is satisfied. There is no 12-month expiration on these rights.

Question 2: A homeowner wants to add a second-story addition to a load-bearing wall. The contractor must install a header over a new 8-foot rough opening. Using engineered lumber, which header option provides the greatest span capacity while minimizing deflection?

A doubled 2×8 with metal connector plates at both bearing ends
Two 2×10 dimensional lumber members nailed together with a 1/2-inch plywood spacer
A glulam (glued laminated timber) beam sized to the span table specifications
A laminated veneer lumber (LVL) header engineered to the specific load conditions (Correct answer)

Correct answer: A laminated veneer lumber (LVL) header engineered to the specific load conditions

LVL (Laminated Veneer Lumber) is an engineered wood product manufactured with consistent grain orientation and adhesive bonding, giving it superior strength-to-size ratios and predictable deflection characteristics compared to sawn lumber or basic glulam for residential headers. For a load-bearing wall with a second story above, LVL engineered specifically to the load conditions provides the most reliable and code-compliant solution.

Question 3: A homeowner enthusiastically offers to pay $9,000 upfront on an $18,000 window-replacement contract (all standard stock items) so the contractor can order materials immediately. The contractor accepts the full $9,000. Which statement is MOST accurate under Maryland Home Improvement Law?

The contractor has violated Maryland law; the maximum allowable deposit is one-third of the contract price ($6,000), regardless of whether the consumer initiated the larger payment. (Correct answer)
The contractor has not violated Maryland law because the homeowner voluntarily offered the larger deposit.
The contractor may accept up to 50% upfront when the deposit is offered by the consumer rather than demanded by the contractor.
The deposit limit applies only when the contract value exceeds $25,000.

Correct answer: The contractor has violated Maryland law; the maximum allowable deposit is one-third of the contract price ($6,000), regardless of whether the consumer initiated the larger payment.

Maryland Home Improvement Law caps deposits at one-third of the total contract price to protect consumers. This ceiling is not waived merely because the consumer volunteers a higher amount—the law's purpose is consumer protection and applies regardless of who proposes the larger payment. Accepting $9,000 on an $18,000 contract (legal max: $6,000) is a statutory violation subject to MHIC disciplinary action.

Question 4: An MHIC contractor wants to have a lien on a homeowner's property released. What is the typical way this is accomplished?

Filing a lien release or satisfaction with the circuit court once paid (Correct answer)
The homeowner must petition the court to remove the lien
Notifying MHIC that the lien is resolved
The lien automatically dissolves after 90 days if no action is taken

Correct answer: Filing a lien release or satisfaction with the circuit court once paid

Once a mechanics' lien has been satisfied (paid), the contractor files a release or satisfaction of lien with the circuit court where the lien was filed. This clears the lien from the property's title.

Question 5: A Maryland MHIC contract must include the contractor's license number. Where must it appear?

On the face of the contract (Correct answer)
On the certificate of insurance
On the permit application only
Only on the contractor's business card

Correct answer: On the face of the contract

Maryland law requires the MHIC license number to appear prominently on the face of every home improvement contract.

Question 6: A homeowner wants to add a bathroom on a second floor above an existing unfinished basement. The contractor discovers the existing floor joists are 2×8 at 16" O.C. spanning 14 feet. Which concern is MOST critical to evaluate first?

Whether the basement ceiling height will be reduced
Whether the existing joists can support the added wet area dead and live loads (Correct answer)
Whether the joist wood species is suitable for staining
Whether permits were pulled for the original framing

Correct answer: Whether the existing joists can support the added wet area dead and live loads

Adding a bathroom introduces significant additional dead load (tile, cement board, fixtures) and live load. The existing 2×8 joists must be evaluated for their span capacity under the new combined loads before any work begins, as undersized joists can lead to excessive deflection or structural failure.

Question 7: A homeowner wants to add a second-floor bathroom directly above an existing first-floor bathroom to minimize plumbing runs. The contractor discovers the floor joists are 2×8 at 16" o.c. spanning 13 feet. After adding the new drain stack, wet wall framing, and tile/mortar bed, the contractor is concerned about deflection. Which IRC standard governs acceptable floor deflection under live load for this application?

L/480 for wet areas including bathrooms
L/360 for floors with ceramic or stone tile finishes (Correct answer)
L/240 for all residential floor applications regardless of finish
L/180 for floors with resilient or soft finishes only

Correct answer: L/360 for floors with ceramic or stone tile finishes

IRC Table R301.7 sets deflection limits at L/360 under live load for floors supporting ceramic tile, stone, or other rigid finish materials — this is critical for tile installations because excessive deflection causes grout cracking and eventual tile failure. L/240 applies to floors with non-tile finishes, L/180 is for roofs with non-plaster ceilings, and L/480 is not a standard IRC floor deflection limit. The contractor must verify the existing 2×8 joists meet L/360 before proceeding.

Question 8: A home improvement contractor is offering an affordable price on hot tubs. His advertisements just show the basic price of the tub. What is required in his advertisement?

None, no legal requirement.
A disclaimer indicating that any accessories shown or that may be required for operation are not included in the stated price. (Correct answer)
The seller must reclaim it at his own expense within 20 days from the date of cancellation.
Within 10 business days of the seller receiving the cancellation notification.

Correct answer: A disclaimer indicating that any accessories shown or that may be required for operation are not included in the stated price.

Maryland's consumer protection laws, enforced by the MHIC, require advertisements to be clear and not misleading. If an advertisement for a product like a hot tub shows accessories or implies features that are not included in the basic advertised price, a disclaimer is necessary. This ensures consumers are fully informed about what is and is not covered by the stated price.

Question 9: A homeowner installs a gas range in a kitchen that previously had an electric range. The new gas range requires a flexible connector. Under IRC fuel gas provisions, which of the following flexible connector installations would be a code violation?

Installing a 6-foot flexible connector that runs behind the range and connects to a rigid gas line at the shutoff valve
Using a flexible connector that passes through the rear wall of the cabinet to connect to a gas outlet located in an adjacent cabinet (Correct answer)
Using an 18-inch corrugated stainless steel tubing (CSST) connector listed for the application
Routing the flexible connector through the cabinet base panel with a drilled hole fitted with a listed strain-relief grommet

Correct answer: Using a flexible connector that passes through the rear wall of the cabinet to connect to a gas outlet located in an adjacent cabinet

IRC Section G2422.1.2 (IFGC 411.1.2) prohibits flexible connectors from being concealed within or extending through walls, floors, ceilings, or partitions. Routing a connector through a cabinet rear wall into an adjacent cabinet space constitutes concealment through a partition and is a direct code violation. An 18-inch listed CSST connector (A) is acceptable. Passing through a base panel with a strain-relief grommet (B) is permitted if the connector is listed for such use. A 6-foot exposed connector (C) is within the maximum 6-foot length allowed for residential appliances.

Question 10: Under Maryland building codes, which of the following improvements to a residential structure typically DOES NOT require a building permit?

Adding a 200-square-foot storage shed with electrical service
Installing a new HVAC system
Painting interior rooms and replacing carpet (Correct answer)
Replacing a load-bearing wall with a structural beam

Correct answer: Painting interior rooms and replacing carpet

Cosmetic improvements such as painting interior rooms and replacing carpet are considered routine maintenance and do not alter the structure, electrical, plumbing, or mechanical systems. These activities do not require a building permit. By contrast, adding electrical service to a shed, altering structural elements, or installing a new HVAC system all require permits because they involve code-regulated systems or structural changes.

Question 11: Under MHIC continuing education rules, which of the following course topics is SPECIFICALLY required to appear in every approved continuing education program?

Maryland Home Improvement Law and contractor obligations (Correct answer)
Business accounting practices for home improvement contractors
Occupational Safety and Health Administration (OSHA) safety standards
Environmental lead-paint abatement procedures

Correct answer: Maryland Home Improvement Law and contractor obligations

The Maryland Home Improvement Commission mandates that approved continuing education curricula include Maryland Home Improvement Law and the legal obligations of contractors. While safety and lead-paint topics may be offered as electives, only Maryland law content is a prescribed required component of every approved CE program.

Question 12: A contractor is renovating a two-story home and discovers a concealed horizontal soffit cavity running along the ceiling that connects directly into an open stud wall cavity below. Under the IRC, what is required at this junction?

A fire-rated drywall enclosure around the entire soffit
Fire blocking is only required if the stud wall cavity exceeds 10 feet in height
Fire blocking at the interconnection point between the horizontal soffit cavity and the vertical stud cavity (Correct answer)
No additional blocking is required as long as the stud bays are sealed at the top plate

Correct answer: Fire blocking at the interconnection point between the horizontal soffit cavity and the vertical stud cavity

IRC R302.11.1 specifically requires fire blocking at 'interconnections between concealed vertical and horizontal spaces such as occur at soffits, drop ceilings, and cove ceilings.' This junction — where a horizontal concealed cavity meets a vertical stud cavity — is one of the most commonly missed fire blocking locations in practice. It is independent of wall height requirements.

Question 13: Under Maryland's contractor regulations, how long must a contractor retain records related to a home improvement contract after project completion?

5 years
3 years (Correct answer)
1 year
7 years

Correct answer: 3 years

Maryland MHIC regulations require contractors to retain all contract-related records for at least 3 years following project completion.

Question 14: A Maryland home improvement contractor's qualifying party resigns on a Tuesday. Under MHIC regulations, how long does the company have to designate a new qualifying party before its license is automatically suspended?

60 days
90 days
30 days (Correct answer)
10 days

Correct answer: 30 days

Under MHIC regulations, when a qualifying party (the individual responsible for the license) leaves the company, the business has 30 days to designate a new qualifying party. Failure to do so within 30 days results in automatic suspension of the company's license — not 60 or 90 days, which are common distractors.

Question 15: What type of home improvement license are there in Maryland?

The contractor
contractor, subcontractor, and salesperson
Physical address
Contractor and salesperson (Correct answer)

Correct answer: Contractor and salesperson

In Maryland, the Home Improvement Law specifies two main types of licenses issued by the MHIC for individuals involved in home improvement work. These are the 'Contractor' license, for those who perform or arrange for home improvement work, and the 'Salesperson' license, for those who solicit, negotiate, or execute home improvement contracts on behalf of a contractor.

Question 16: A contractor uses a Gantt chart to plan a kitchen renovation. What does a Gantt chart primarily display?

The square footage breakdown of each work area
The organizational hierarchy of workers on the job
The budget allocation for each phase of work
The sequence and duration of project tasks over a timeline (Correct answer)

Correct answer: The sequence and duration of project tasks over a timeline

A Gantt chart is a horizontal bar chart that displays project tasks along a timeline, showing each task's start date, duration, and end date. It allows a contractor to visualize the entire project schedule at a glance.

Question 17: A homeowner asks a contractor to start work immediately and skip the written contract. Under Maryland law, the contractor should:

Refuse to begin without a written contract if the job exceeds $250 (Correct answer)
Begin work only if the job is under $1,000
Proceed and provide a receipt within 10 days
Begin work since the homeowner waived the contract in writing

Correct answer: Refuse to begin without a written contract if the job exceeds $250

Maryland law requires a written contract for jobs over $250, and the contractor cannot legally waive this requirement even at the homeowner's request.

Question 18: During a stair inspection on a new residential addition, a contractor installs open risers (no riser board). Under IRC R311.7.5.1, when are open risers permitted in a dwelling unit stairway?

Only when the stair serves an attic or uninhabitable space
When the opening between treads does not allow passage of a 4-inch diameter sphere (Correct answer)
When the opening between treads does not allow passage of a 6-inch diameter sphere
Open risers are never permitted in dwelling units under the IRC

Correct answer: When the opening between treads does not allow passage of a 4-inch diameter sphere

IRC R311.7.5.1 permits open risers in dwelling units only when the opening between treads does not allow the passage of a 4-inch diameter sphere. This is a child safety provision to prevent small children from getting their heads caught. Many contractors incorrectly recall the 6-inch sphere rule, which applies to guards and balusters (R312.1.3), not open risers.

Question 19: A Maryland home improvement contract must include estimated dates for which of the following?

Neither date is required if payment terms are clear
Both start and completion of the work (Correct answer)
Only the completion date
Only the start date

Correct answer: Both start and completion of the work

Maryland Home Improvement Law requires contracts to include both estimated start and completion dates. This helps hold contractors accountable for timely performance.

Question 20: Under the Maryland Home Improvement Act, which statement about the Guaranty Fund is CORRECT?

The Fund is financed by a tax on homeowners who hire contractors
The Fund compensates homeowners for verified losses caused by licensed MHIC contractors (Correct answer)
The Fund is managed by the Maryland Attorney General and not the MHIC
The Fund pays contractors when homeowners default on payment

Correct answer: The Fund compensates homeowners for verified losses caused by licensed MHIC contractors

Maryland's Home Improvement Guaranty Fund compensates homeowners who suffer actual monetary losses as a result of the dishonest, fraudulent, or negligent acts of a licensed MHIC contractor. The Fund is financed by fees paid by contractors, not by homeowners.

Question 21: A licensed MHIC contractor operates under the trade name 'Chesapeake Renovations LLC.' They want to begin bidding jobs under a second DBA name, 'Bay Area Builders.' What must they do BEFORE using the new name in home improvement contracting?

Notify the MHIC Commission of the additional trade name and have it added to their license record (Correct answer)
File the DBA with their county only — no MHIC notification is required
Wait until their next biennial renewal to add the trade name
Obtain a separate MHIC license for the new trade name

Correct answer: Notify the MHIC Commission of the additional trade name and have it added to their license record

MHIC requires that all trade names under which a licensee conducts home improvement business be disclosed to and registered with the Commission — not deferred to the next renewal cycle, and not handled solely through a county DBA filing. A separate license is not needed, but the additional name must appear in the Commission's records before it is used in contracting.

Question 22: What is the primary purpose of Maryland's Guaranty Fund administered by the MHIC?

To provide low-interest loans for small home improvement businesses
To fund MHIC investigations of unlicensed contractors
To compensate homeowners harmed by licensed contractors who cannot pay judgments (Correct answer)
To pay contractors when homeowners default on payments

Correct answer: To compensate homeowners harmed by licensed contractors who cannot pay judgments

The MHIC Guaranty Fund compensates eligible homeowners when a licensed contractor fails to honor a court judgment against them.

Question 23: Which masonry unit type is correctly matched with its primary composition?

Glass block — tempered borosilicate glass with hollow center
Concrete masonry unit (CMU) — fired clay and shale
Brick — Portland cement, aggregate, and water
Adobe — sun-dried earthen material with straw or other stabilizers (Correct answer)

Correct answer: Adobe — sun-dried earthen material with straw or other stabilizers

Adobe is traditionally made from earth (clay-rich soil), water, and organic material like straw, then sun-dried rather than kiln-fired. CMUs are made from Portland cement, aggregate, and water — not fired clay. Bricks are made from fired clay or shale, not cement. Glass block is made from soda-lime glass, not borosilicate.

Question 24: A contractor is selecting concrete for a basement floor slab that will be exposed to freeze-thaw cycles and deicing salts. Which concrete specification is most critical for durability in this application?

High slump (8+ inches) for easy placement
Lightweight aggregate concrete to reduce dead load
Air-entrained concrete with low water-cement ratio (Correct answer)
High water-cement ratio for extended workability

Correct answer: Air-entrained concrete with low water-cement ratio

Air-entrained concrete with a low water-cement ratio is essential for freeze-thaw durability. Air entrainment creates microscopic bubbles that relieve pressure as water expands when freezing. A low water-cement ratio increases strength and reduces permeability. High slump and high water-cement ratios both weaken concrete and reduce durability.

Question 25: When trenching near a residential structure in Maryland, at what depth does OSHA require a protective system (shoring, sloping, or trench box)?

5 feet deep (Correct answer)
10 feet deep
3 feet deep
8 feet deep

Correct answer: 5 feet deep

OSHA requires a protective system for excavations 5 feet or deeper unless the excavation is made entirely in stable rock. At less than 5 feet, a competent person must evaluate if protection is needed.

Question 26: A contractor's MHIC license is revoked. How long must they wait before reapplying for a new license?

5 years
1 year (Correct answer)
6 months
2 years

Correct answer: 1 year

A contractor whose license is revoked must wait at least one year before becoming eligible to reapply.

Question 27: A buyer has canceled a sale within the allowable time period. When must any goods or property traded in be returned?

Within 20 business days after the seller receives the cancellation notice
Within 10 business days after the seller receives the cancellation notice (Correct answer)
Within 15 business days after the seller receives the cancellation notice
Within 5 business days after the seller receives the cancellation notice

Correct answer: Within 10 business days after the seller receives the cancellation notice

Consumer protection laws, particularly those related to door-to-door sales, mandate that sellers promptly return any goods or property traded in by a buyer who has canceled a sale within the allowable period. The seller is required to return these items within 10 business days after receiving the buyer's cancellation notice. This ensures the buyer is fully restored to their original position after rescinding the contract.

Question 28: A Maryland contractor discovers they are misclassifying employees as independent contractors. What is a consequence of this misclassification?

Back payroll taxes, penalties, and potential workers' compensation liability (Correct answer)
Automatic revocation of their MHIC license
The workers must refund wages already paid
Only a warning from the Maryland Department of Labor

Correct answer: Back payroll taxes, penalties, and potential workers' compensation liability

Misclassifying employees as independent contractors can result in liability for back payroll taxes, IRS and state penalties, and workers' compensation claims if a misclassified worker is injured.

Question 29: According to IRC smoke alarm requirements, where must a smoke alarm be installed in a home with a finished basement being converted to living space?

On each level of the dwelling, including the basement, and inside each sleeping room (Correct answer)
Only inside the finished basement rooms
Only in rooms adjacent to the basement on the floor above
Only at the top of the basement stairway

Correct answer: On each level of the dwelling, including the basement, and inside each sleeping room

The IRC requires smoke alarms to be installed on each level of the dwelling unit (including basements), inside each sleeping room, and outside each separate sleeping area. When a basement is converted to living space, smoke alarms must be placed in all these required locations.

Question 30: When a client requests additional work not included in the original contract scope, a contractor should:

Obtain a signed change order documenting the scope and price before proceeding (Correct answer)
Perform the work as a goodwill gesture to maintain the client relationship
Absorb the cost if it is less than 10% of the original contract value
Stop all work until an entirely new contract is negotiated

Correct answer: Obtain a signed change order documenting the scope and price before proceeding

Any change to the original contract scope must be documented in a written change order, signed by both parties, before the additional work begins. This protects the contractor's right to be paid for the extra work and prevents scope creep disputes.

Question 31: A Maryland homeowner signs a $22,000 bathroom remodel contract at her home on a Saturday afternoon. The meeting occurred because SHE called the contractor's office to request an estimate. On Monday morning — two business days later — she calls to cancel due to changed finances. The contractor argues she has no cancellation right because she was the one who initiated contact. Under the FTC Cooling-Off Rule (16 CFR Part 429), what is the CORRECT legal outcome?

The homeowner may cancel but owes the contractor reimbursement for any materials already ordered before the cancellation notice was received
The contractor is correct — the FTC Cooling-Off Rule does not apply when the consumer initiated contact with the seller
The 3-day cooling-off right does not apply to home improvement contracts because they involve services rather than consumer goods
The homeowner has a valid 3-business-day right to cancel because the rule applies whenever a contract is signed at the consumer's residence, explicitly including situations where the buyer invited the seller (Correct answer)

Correct answer: The homeowner has a valid 3-business-day right to cancel because the rule applies whenever a contract is signed at the consumer's residence, explicitly including situations where the buyer invited the seller

The FTC Cooling-Off Rule (16 CFR §429.0) defines a covered door-to-door sale as one 'in which the seller personally solicits the sale, including those in response to or following an invitation by the buyer.' The statutory language explicitly includes situations where the consumer called the seller first. What triggers the 3-business-day right is WHERE the contract was signed — at the consumer's residence — not who initiated contact. The homeowner's Monday cancellation falls within the 3-day window. The contractor's argument, though commonly made, is legally incorrect under this rule. Cooling-off rights also apply to service contracts, not just goods.

Question 32: Under MHIC regulations, which of the following scenarios would disqualify an applicant from obtaining or renewing an MHIC license even if all other requirements are met?

A criminal conviction for theft over $1,500 for which the applicant completed probation 4 years ago (Correct answer)
Bankruptcy discharged 5 years ago with no subsequent financial judgments
A civil judgment against the applicant for breach of a non-construction commercial contract entered 6 years ago
A prior MHIC license that lapsed due to non-renewal 8 years ago with no associated complaints

Correct answer: A criminal conviction for theft over $1,500 for which the applicant completed probation 4 years ago

Maryland MHIC law requires the Commission to consider criminal convictions involving moral turpitude or dishonesty — including theft — when evaluating license applications. A felony theft conviction is a significant disqualifying factor because it directly bears on the applicant's trustworthiness to enter consumers' homes and handle their funds. Unlike the other scenarios, a recent theft conviction raises direct integrity concerns that the Commission is mandated to weigh, and can result in denial even after probation is completed.

Question 33: When installing a deck attached to a house in Maryland, which document typically governs the ledger board connection requirements?

OSHA 1926 Subpart Q
IRC Section R507 and local amendments (Correct answer)
ANSI A117.1 accessibility standard
NFPA 70 (National Electrical Code)

Correct answer: IRC Section R507 and local amendments

Attached deck construction, including ledger board connections, is governed by IRC Section R507 (Decks) along with any local Maryland amendments. The ledger connection is critical to prevent deck collapse and must meet specific fastener, flashing, and spacing requirements.

Question 34: During a kitchen remodel, a homeowner requests a significant change to the cabinet layout that was not in the original signed contract. This change will add $2,500 to the total cost. What is the proper procedure for the contractor to follow?

Complete the work as requested and add the extra cost to the final invoice.
Get verbal approval from the homeowner and document it in the project notes.
Execute a written change order signed by both the homeowner and the contractor before performing the new work. (Correct answer)
Have the salesperson who sold the job approve the change.

Correct answer: Execute a written change order signed by both the homeowner and the contractor before performing the new work.

While the MHIC recommends all change orders be in writing, it is the best practice to avoid disputes. A written change order, agreed to and signed by both the contractor and the homeowner, creates a clear record of the new scope of work and cost, protecting both parties. The Door-to-Door Sales Act does not apply to transactions that are the result of a written change order.

Question 35: An MHIC contractor completes an 8-hour online course from an out-of-state provider that is approved by another state's home improvement licensing board but has NOT applied for MHIC approval. How should the contractor treat these hours?

The hours qualify if the contractor submits a reciprocity petition to MHIC within 30 days of course completion
The hours qualify automatically because the course is approved in at least one U.S. jurisdiction
The hours do not qualify; only MHIC-approved providers satisfy the Maryland CE requirement (Correct answer)
The hours qualify for up to 4 of the required 8 hours, with the remainder needing an MHIC-approved source

Correct answer: The hours do not qualify; only MHIC-approved providers satisfy the Maryland CE requirement

Maryland MHIC does not recognize reciprocal approval from other states' licensing boards for continuing education purposes. A course provider must be specifically approved by MHIC for the hours to count. Approval by another jurisdiction's board is irrelevant to Maryland compliance.

Question 36: When scheduling subcontractors for a bathroom renovation, which sequence correctly reflects standard construction order?

Plumbing rough-in → Electrical rough-in → Drywall → Tile → Painting (Correct answer)
Painting → Tile installation → Plumbing rough-in → Drywall
Drywall → Plumbing rough-in → Tile installation → Electrical rough-in
Tile installation → Drywall → Plumbing rough-in → Painting

Correct answer: Plumbing rough-in → Electrical rough-in → Drywall → Tile → Painting

Rough-in work (plumbing and electrical) must be completed and inspected before walls are closed with drywall. Finish work — tile, then painting — comes last. Reversing this order forces costly tear-outs to access hidden systems.

Question 37: Under MHIC regulations, what information must appear on a home improvement contractor's vehicle used for business?

The contractor's MHIC license number and business name (Correct answer)
Only the business name is required
No markings are required on vehicles
The contractor's personal home address

Correct answer: The contractor's MHIC license number and business name

Maryland MHIC regulations require that vehicles used in connection with home improvement work display the contractor's business name and MHIC license number.

Question 38: A consumer files a complaint with MHIC against a licensed contractor. What is the typical first step in MHIC's complaint process?

MHIC immediately suspends the contractor's license pending investigation
The consumer must first attempt mediation before MHIC gets involved
MHIC investigates the complaint and may contact both parties for information (Correct answer)
MHIC forwards the complaint directly to the Maryland Attorney General

Correct answer: MHIC investigates the complaint and may contact both parties for information

When MHIC receives a consumer complaint, it typically begins an investigation, which may include contacting both the consumer and the contractor to gather information about the dispute.

Question 39: Under the IRC, when installing a wood-framed deck attached to a house, what is the required fastener for connecting the ledger board to the house rim joist to resist lateral (horizontal) forces?

Approved lag screws or bolts with specified spacing (Correct answer)
Simpson Strong-Tie LUS joist hangers only
Construction adhesive plus 10d nails at 6 inches on center
Two 16d common nails per joist bay

Correct answer: Approved lag screws or bolts with specified spacing

The IRC requires ledger boards to be attached with approved lag screws or through-bolts sized and spaced according to the deck load tables in the code. Simple nails are insufficient to resist the lateral and withdrawal forces placed on a deck ledger. The specific size and spacing depends on joist span and species of lumber per IRC Table R507.9.1.3(1).

Question 40: A licensed contractor in Maryland must notify the MHIC of any change in their business address or trade name within how many days?

10 days (Correct answer)
60 days
90 days
30 days

Correct answer: 10 days

MHIC regulations require licensees to notify the Commission of any change of address, trade name, or business ownership within 10 days of the change. This notification must be sent via certified mail.

Question 41: Under Maryland OSHA regulations, when must a contractor provide fall protection for workers on a residential roof?

Only on roofs steeper than 4:12 pitch
When the fall height exceeds 10 feet
Fall protection is optional on residential projects
When the fall height exceeds 6 feet (Correct answer)

Correct answer: When the fall height exceeds 6 feet

Maryland follows federal OSHA standards requiring fall protection when workers are exposed to falls of 6 feet or more in construction.

Question 42: When framing a residential floor system, which engineered lumber product is most commonly used today as a substitute for solid-sawn dimensional lumber joists because it offers greater dimensional stability and longer spans?

Oriented strand board (OSB)
I-joists (wood I-beams) (Correct answer)
Glulam beams
Laminated veneer lumber (LVL)

Correct answer: I-joists (wood I-beams)

I-joists (wood I-beams) are the most common engineered product used as floor joists in modern residential construction. Their flanged profile resists bending and allows longer spans with less material. LVL is used primarily for beams and headers, glulam for large beams, and OSB is a sheathing panel, not a joist.

Question 43: What is the maximum OSHA-allowed angle for positioning an extension ladder against a wall?

1:3 ratio (one out for every three up)
1:4 ratio (one out for every four up) (Correct answer)
Any angle is acceptable if secured at the top
1:5 ratio (one out for every five up)

Correct answer: 1:4 ratio (one out for every four up)

OSHA requires extension ladders to be set at a 75-degree angle, which corresponds to a 1:4 ratio (one foot out for every four feet of height).

Question 44: A homeowner is adding a bedroom in the basement. Under the IRC, what is the minimum net clear opening required for an emergency escape and rescue window (egress window) in that bedroom?

4.0 square feet
5.7 square feet (Correct answer)
3.3 square feet
6.2 square feet

Correct answer: 5.7 square feet

The IRC requires emergency escape and rescue openings to have a minimum net clear opening of 5.7 square feet for below-grade windows (e.g., basement bedrooms). Above-grade windows require a minimum of 5.0 square feet. The opening must also be at least 24 inches in height and 20 inches in width.

Question 45: Under Maryland law, what is the maximum civil penalty the MHIC can impose on an unlicensed contractor per violation?

$500
$5,000
$1,000
$2,000 (Correct answer)

Correct answer: $2,000

The MHIC may impose a civil penalty of up to $2,000 per violation against unlicensed contractors.

Question 46: When preparing a materials estimate, a contractor should add a waste factor to account for cuts and defects. What typical waste factor is used for ceramic tile installations?

1–2%
50%
10–15% (Correct answer)
25–30%

Correct answer: 10–15%

A 10–15% waste factor is standard for ceramic tile to account for cuts, breakage, and pattern matching.

Question 47: A licensed MHIC contractor is re-roofing a home and finds the existing roof deck has areas of oriented strand board (OSB) with edge swell exceeding 3/16 inch from prior moisture exposure. The new shingles will be installed over the existing deck. What must the contractor do?

Replace the affected OSB panels and ensure the new deck is flat within manufacturer tolerances before shingling (Correct answer)
Document the condition with photos and proceed — shingles will conform to minor deck imperfections
Install a high-density foam underlayment to bridge the swollen edges
Sand the swollen edges flush and apply a water-resistant primer before shingling

Correct answer: Replace the affected OSB panels and ensure the new deck is flat within manufacturer tolerances before shingling

Edge swell in OSB creates ridges that telegraph through finished shingles, causing visible waviness, accelerated wear at high spots, and potential cracking of shingle tabs. Shingle manufacturers require a flat, solid, well-secured deck as a condition of warranty. Sanding is not an adequate structural repair for swollen OSB; the panel must be replaced. Foam underlayment does not provide a suitable nailing base and does not correct the underlying defect. Proceeding without repair exposes the contractor to warranty and workmanship liability.

Question 48: A homeowner's bathroom renovation requires waterproofing behind the tile in a shower surround. Which substrate is most appropriate directly behind ceramic tile in a wet shower area?

Greenboard (moisture-resistant drywall)
Cement board (cementitious backer unit) (Correct answer)
Standard drywall (gypsum board)
OSB (oriented strand board)

Correct answer: Cement board (cementitious backer unit)

Cement board (cementitious backer unit) is the correct substrate for wet areas like shower surrounds because it does not absorb water, will not rot, swell, or degrade when exposed to moisture. Standard drywall and OSB will fail when wet. Greenboard is only moisture-resistant, not waterproof, and is not suitable for direct water exposure in shower applications.

Question 49: A contractor is hired to build a deck attached to a house. Under the IRC, what is the maximum allowable height of a deck above grade before a guardrail is required?

36 inches
30 inches (Correct answer)
18 inches
24 inches

Correct answer: 30 inches

The IRC requires guardrails on decks and open-sided walking surfaces that are more than 30 inches above the floor or grade below. If a deck surface is 30 inches or less above grade, a guardrail is not mandated by code, though local jurisdictions may have stricter rules.

Question 50: A homeowner signs an MHIC contract on a Monday at the contractor's office and pays a $3,000 deposit. She calls Thursday to cancel. Under Maryland's Home Improvement Law cancellation provisions, which statement is correct?

She has no right to cancel because the contract was signed at the contractor's office, not her home (Correct answer)
She has 5 business days to cancel contracts over $2,500 signed at a business location
She has the right to cancel within 3 business days regardless of where the contract was signed, and is entitled to a full deposit refund
She may cancel but forfeits the deposit because cancellation occurred after 48 hours

Correct answer: She has no right to cancel because the contract was signed at the contractor's office, not her home

Maryland's Home Improvement Law three-day right of rescission applies specifically to contracts solicited at the homeowner's residence. When a homeowner travels to a contractor's place of business and signs a contract there, the statutory three-day cancellation right under the Home Improvement Law does not automatically apply (though Federal FTC cooling-off rules may apply in solicited-sale contexts). This is a critical distinction that catches many contractors and homeowners off guard.

Question 51: When installing a wood-framed wall assembly with an exterior continuous rigid foam insulation layer (R-10, 2" XPS) in Climate Zone 5, a contractor is debating vapor barrier placement. The wall assembly from exterior to interior is: cladding / drainage plane / 2" XPS / sheathing / 2×6 studs with R-21 batt / interior drywall. Which statement about vapor control is most accurate for this assembly?

A Class I vapor retarder (polyethylene sheet) must be installed on the interior face of the studs because the exterior foam is insufficient to keep the sheathing above the dew point in winter
The 2" XPS provides sufficient outboard insulation to keep the sheathing above the dew point in winter, making an interior vapor barrier unnecessary and potentially harmful by trapping drying potential (Correct answer)
A vapor retarder is required on both the interior and exterior sides to comply with IRC vapor control requirements in Zone 5
The drainage plane behind the cladding serves as the primary vapor control layer, eliminating the need for any additional vapor retarder in the assembly

Correct answer: The 2" XPS provides sufficient outboard insulation to keep the sheathing above the dew point in winter, making an interior vapor barrier unnecessary and potentially harmful by trapping drying potential

In Climate Zone 5, the IRC requires that at least 30% of the total wall R-value be located outboard of the structural sheathing to keep the sheathing above the wintertime dew point, preventing condensation. For a 2×6 wall with R-21 cavity + R-10 outboard: total R = 31, outboard fraction = 10/31 = 32.3%, which meets the 30% threshold. With the sheathing kept warm enough, it remains above the dew point in winter, so an interior Class I vapor retarder is unnecessary — and adding one would actually be counterproductive because it traps moisture that tries to dry toward the interior during shoulder seasons. A smart vapor retarder (Class II or variable) may be used but is not mandatory. The drainage plane is a liquid water control layer, not a vapor control layer.

Question 52: A homeowner in Maryland signs a home improvement contract on a Monday. By when must they notify the contractor if they wish to cancel under the right of rescission?

By noon on Tuesday (1 business day later)
By midnight on Thursday (3 business days later) (Correct answer)
By midnight on Sunday (7 calendar days later)
By midnight on Wednesday (2 business days later)

Correct answer: By midnight on Thursday (3 business days later)

The 3-business-day right of rescission begins the day after signing. A Monday signing means the 3-day period expires at midnight on Thursday.

Question 53: A 'punch list' in construction project management is:

The list of subcontractors scheduled to be paid at project completion
The original scope of work described in the signed contract
A list of remaining deficiencies or incomplete items to be corrected before final acceptance (Correct answer)
A log of OSHA safety violations recorded during the project

Correct answer: A list of remaining deficiencies or incomplete items to be corrected before final acceptance

A punch list is a document created near project completion listing items that do not conform to contract specifications or that remain incomplete. The contractor must address all punch list items before the owner grants final acceptance and releases final payment.

Question 54: Which scheduling method identifies the longest sequence of dependent tasks that determines the minimum possible project completion time?

PERT analysis
Float time scheduling
Gantt chart analysis
Critical Path Method (CPM) (Correct answer)

Correct answer: Critical Path Method (CPM)

The Critical Path Method (CPM) identifies the longest chain of dependent tasks — the critical path — whose combined duration sets the earliest possible project completion date. Any delay on the critical path delays the entire project.

Question 55: A salesperson working for a licensed MHIC contractor wishes to solicit home improvement contracts. What credential does that salesperson need?

A general contractor's license
A separate MHIC salesperson license (Correct answer)
A notary public commission
No license — the contractor's license covers them

Correct answer: A separate MHIC salesperson license

Maryland requires each individual who solicits home improvement sales to hold their own MHIC salesperson license.

Question 56: Which of the following individuals is EXEMPT from obtaining an MHIC license in Maryland?

A roofing contractor replacing a residential roof for $2,000
A painting company contracted to repaint the interior of a private home
A homeowner personally performing improvements on their own primary residence (Correct answer)
A landscaping firm hired to install a retaining wall at a residence

Correct answer: A homeowner personally performing improvements on their own primary residence

Maryland's Home Improvement Law exempts homeowners who personally perform improvements on a residence they own and occupy as their primary home. Licensed tradespeople (electricians, plumbers, HVAC) working within the scope of their own license are also exempt, as are new construction contractors.

Question 57: John Jones and Company, a home improvement contractor, is changing his firm's name to John Jones and Son. When should he tell the Home Improvement Commission?

Within 8 days of the change
Within 3 days of the change
The duration of the current license
Within 10 days of the change (Correct answer)

Correct answer: Within 10 days of the change

Maryland Home Improvement Commission regulations mandate that licensed contractors promptly notify the Commission of any significant changes to their business information. This includes changes to the firm's name, address, or ownership. The required timeframe for reporting such changes is typically within 10 days to ensure the Commission's records remain accurate and up-to-date for regulatory and public information purposes.

Question 58: Which of the following is a legitimate reason Maryland may waive the educational requirement for an MHIC license applicant?

The applicant has been in business for more than 20 years in another state without any complaints
Submitting a notarized letter stating the applicant has extensive knowledge
Documented proof of substantial equivalent professional experience or prior licensure in a related field as determined by the Commission (Correct answer)
The applicant is related to a current Commission member

Correct answer: Documented proof of substantial equivalent professional experience or prior licensure in a related field as determined by the Commission

Maryland may grant waivers for equivalent experience or licensure, but it must be formally reviewed and approved by the Commission.

Question 59: In project scheduling, 'float' (also called 'slack') refers to:

The overlap period when two subcontractors work in the same area simultaneously
The amount of time a task can be delayed without delaying the overall project completion date (Correct answer)
Contingency money held in reserve for cost overruns
The difference between the original bid price and the actual project cost

Correct answer: The amount of time a task can be delayed without delaying the overall project completion date

Float (or slack) is the scheduling flexibility available to a non-critical task — the amount of time it can slip without pushing back the project's final completion date. Tasks on the critical path have zero float.

Question 60: Under the International Residential Code (IRC), what is the minimum ceiling height required for habitable rooms in a new residential construction?

7 feet 6 inches
8 feet 0 inches
6 feet 8 inches
7 feet 0 inches (Correct answer)

Correct answer: 7 feet 0 inches

The IRC requires a minimum ceiling height of 7 feet 0 inches for habitable rooms. This ensures adequate livable space and ventilation. Bathrooms, hallways, and utility spaces may have lower minimums (6 feet 8 inches), but primary habitable rooms must meet the 7-foot standard.

Question 61: Which of the following would typically require a homeowner to disclose lead paint to a buyer under Maryland law?

Any home regardless of age
Only homes built before 1950
The home was built before 1978 (Correct answer)
The home was built before 1990

Correct answer: The home was built before 1978

Maryland law, consistent with federal law, requires disclosure of known lead-based paint in homes built before 1978, as lead paint was commonly used in residential construction until that year.

Question 62: During a bathroom remodel, a contractor relocates the toilet 4 inches farther from the existing drain stack, requiring an extended horizontal drain run. The drain is 3 inches in diameter and runs horizontally 8 feet before connecting to a 4-inch vertical stack. What is the minimum slope required for the horizontal drain run, and what is the maximum length permitted before a cleanout is mandatory?

Minimum 1/4 inch per foot slope; cleanout required when the horizontal run exceeds 100 feet
Minimum 1/4 inch per foot slope; a cleanout is required at the upper terminal of the horizontal run exceeding 5 feet (Correct answer)
Minimum 1/8 inch per foot slope; cleanout required at 50-foot intervals
Minimum 1/8 inch per foot slope; a cleanout is required at every change of direction exceeding 45 degrees

Correct answer: Minimum 1/4 inch per foot slope; a cleanout is required at the upper terminal of the horizontal run exceeding 5 feet

Per IRC Section P3005.3, horizontal drains 3 inches and smaller require a minimum slope of 1/4 inch per foot (4-inch and larger drains permit 1/8 inch per foot). IRC Section P3005.2.6 requires a cleanout at the upper terminal of each horizontal drain run that is more than 5 feet in length. At 8 feet, this run triggers the upper-terminal cleanout requirement. The 100-foot cleanout interval applies to longer runs as an additional requirement, not a substitute for the upper-terminal rule.

Question 63: A Maryland Home Improvement Contractor who was first licensed 18 months ago is approaching his initial renewal. He completed 3 hours of approved continuing education. Which statement best describes his compliance status under MHIC rules?

He is non-compliant because continuing education requirements are waived for first-time renewals and he should not have taken courses yet.
He is fully compliant only if all 3 hours were completed in an in-person, classroom-based format approved by the Commission.
He is fully compliant because 3 hours satisfies the continuing education requirement for any renewal period. (Correct answer)
He is non-compliant because first-renewal licensees must complete 6 hours to account for the shorter initial licensing period.

Correct answer: He is fully compliant because 3 hours satisfies the continuing education requirement for any renewal period.

MHIC requires 3 hours of Commission-approved continuing education per renewal period regardless of whether it is the licensee's first or subsequent renewal. There is no elevated requirement for initial renewals, and online formats approved by the Commission are acceptable.

Question 64: A Maryland home improvement contractor working in a specialty trade area (e.g., HVAC, electrical, plumbing) may be required to hold:

Only the MHIC license, which covers all specialty work
No license if the specialty work is subcontracted
Only the specialty license, as it supersedes the MHIC requirement
Both an MHIC license and a separate specialty trade license (Correct answer)

Correct answer: Both an MHIC license and a separate specialty trade license

In Maryland, specialty trade work such as electrical, plumbing, and HVAC requires separate specialty licenses in addition to the MHIC license. These are regulated by separate licensing boards.

Question 65: A contractor operating under a trade name in Maryland must ensure which of the following is true?

The trade name must be approved by the Maryland Secretary of State before bidding on jobs
The trade name must be registered and the MHIC license must be obtained in the trade name or cross-referenced (Correct answer)
Trade names are not permitted for sole proprietors
The trade name must include the contractor's last name

Correct answer: The trade name must be registered and the MHIC license must be obtained in the trade name or cross-referenced

Contractors using a trade (DBA) name must register it and ensure their MHIC license properly reflects or cross-references that name.

Question 66: A licensed MHIC contractor completes a home improvement project and the homeowner pays in full. Three weeks later, the contractor discovers a subcontractor was not paid and files a mechanic's lien. Under Maryland law, which statement best describes the homeowner's exposure?

The homeowner may be liable for the lien amount if the contractor failed to provide a waiver of lien upon final payment (Correct answer)
The homeowner is automatically protected from all liens once a licensed MHIC contractor is used
The subcontractor must sue the contractor exclusively and cannot encumber the homeowner's property
The homeowner has no liability because full payment was made to the licensed contractor

Correct answer: The homeowner may be liable for the lien amount if the contractor failed to provide a waiver of lien upon final payment

Even after paying the general contractor in full, a homeowner can be exposed to a mechanic's lien from unpaid subcontractors or suppliers. A properly executed lien waiver from the contractor upon final payment is the homeowner's primary protection. Licensed MHIC status does not automatically shield the homeowner from downstream lien claims.

Question 67: A licensed MHIC contractor completes 8 hours of approved continuing education during a single 2-year renewal period, but only 5 hours are required. How are the extra 3 hours treated under MHIC regulations?

They convert to credit toward the written licensing examination
They are forfeited and cannot be applied to any future renewal period (Correct answer)
They reduce the required hours in the next period by half the surplus
They may be carried forward and applied to the next renewal period

Correct answer: They are forfeited and cannot be applied to any future renewal period

Under MHIC rules, excess continuing education hours completed beyond the required amount in a given renewal period cannot be carried forward to a subsequent renewal period. Each renewal cycle stands alone, and only hours earned within that specific 2-year window count toward that renewal's requirement.

Question 68: Under Maryland's building code framework, when is a homeowner typically required to obtain a building permit before beginning work?

Only when the project involves licensed subcontractors
For any structural work, electrical work, plumbing, or project valued over a jurisdiction-defined threshold (Correct answer)
Only for additions that increase square footage by more than 400 sq ft
Only for projects that alter the exterior appearance of the home

Correct answer: For any structural work, electrical work, plumbing, or project valued over a jurisdiction-defined threshold

In Maryland and most jurisdictions, permits are required for structural work, electrical, plumbing, mechanical systems, and projects meeting or exceeding a value threshold set by the local jurisdiction. The scope of work — not just size or appearance — determines permit requirements.

Question 69: A Maryland MHIC contractor is pouring a concrete footing for a home addition in December when ambient temperatures are forecasted to drop to 28°F overnight. Which cold-weather concrete practice is NOT a code-compliant method to protect fresh concrete from freezing?

Adding additional water to the mix to increase workability in cold conditions (Correct answer)
Adding calcium chloride accelerator at 2% by weight of cement to lower the freezing point
Heating mix water and aggregates to raise the fresh concrete temperature above 50°F
Using Type III (high early strength) cement to accelerate heat of hydration

Correct answer: Adding additional water to the mix to increase workability in cold conditions

Adding extra water to concrete in cold weather is expressly prohibited under ACI 306 (Cold Weather Concreting) and violates water-cement ratio requirements critical to strength development. Increasing the w/c ratio reduces compressive strength and durability — the opposite of what cold-weather work demands. Type III cement is a legitimate strategy that increases early heat generation. Heating mix components is a standard ACI 306 approach. Calcium chloride at ≤2% by cement weight is a code-permitted accelerator for non-prestressed concrete. Only excess water addition fails both technical and code scrutiny.

Question 70: A remodeling contract specifies a substantial completion date of September 15. A critical specialty window order is delayed by the manufacturer, pushing completion to October 5. The contractor says nothing to the homeowner until October 3 and simply finishes late. Even if the delay was beyond the contractor's control, what MHIC compliance problem has the contractor created?

The contractor is automatically in material breach and owes the homeowner liquidated damages at the statutory rate of 1.5% per week.
The contractor must obtain a formal extension agreement notarized by both parties or forfeit 10% of the contract price.
None—force majeure delays caused by third-party suppliers automatically excuse performance and require no notice.
The contractor has violated the duty to provide timely written notice of delay and a revised completion date, exposing them to a complaint regardless of fault for the underlying delay. (Correct answer)

Correct answer: The contractor has violated the duty to provide timely written notice of delay and a revised completion date, exposing them to a complaint regardless of fault for the underlying delay.

Maryland Home Improvement regulations impose an affirmative obligation on contractors to notify homeowners promptly of schedule changes and to provide a revised completion date in writing. Even when the delay is caused by a third party outside the contractor's control, failing to communicate leaves the homeowner in the dark and can result in a valid MHIC complaint. Proactive notice is both a legal obligation and a practical defense against claims of abandonment or breach.

Question 71: An MHIC contractor completes a bathroom renovation and discovers that the existing exhaust fan vents into the attic space rather than to the exterior. What does building code require?

An additional dehumidifier must be installed in the attic to compensate
The fan may vent into the attic only if insulation is present around the duct
The existing configuration is acceptable if the attic is well ventilated
The fan must be ducted to terminate at an exterior wall, roof, or soffit vent (Correct answer)

Correct answer: The fan must be ducted to terminate at an exterior wall, roof, or soffit vent

Building codes (IRC Section M1505) require that exhaust fans in bathrooms must vent to the building's exterior — not into attic spaces, crawl spaces, or concealed areas. Venting into the attic introduces moisture that can cause mold, rot, and structural damage. The contractor is obligated to bring the installation into code compliance as part of any renovation work.

Question 72: What minimum insurance coverage must an MHIC licensee maintain under Maryland regulations?

No insurance is required; only a surety bond is mandated
General liability insurance of at least $50,000 per occurrence and a surety bond (Correct answer)
General liability insurance of at least $50,000 per occurrence
Workers' compensation insurance only

Correct answer: General liability insurance of at least $50,000 per occurrence and a surety bond

Maryland MHIC licensees are required to carry both general liability insurance (minimum $50,000 per occurrence) and a surety bond. These financial responsibility requirements protect consumers in case of property damage or contractor default.

Question 73: Under Maryland's MHIC regulations and applicable building codes, which type of work on a residential property ALWAYS requires a permit regardless of the project cost?

Installing new carpet
Replacing a water heater (Correct answer)
Painting interior walls
Replacing exterior door hardware

Correct answer: Replacing a water heater

Water heater replacement always requires a permit because it involves a fuel-burning appliance or electrical connection, plumbing connections, and safety considerations such as proper venting, pressure relief valve installation, and seismic strapping (where applicable). Painting, carpet installation, and door hardware replacement are typically cosmetic and do not require permits.

Question 74: A change order increases the contract price by $3,000. Under Maryland Home Improvement Law, what is required for the change order to be valid?

The change order must be approved by MHIC
An oral agreement is sufficient for changes under $5,000
It must be in writing and signed by both parties (Correct answer)
Only the contractor's signature is needed

Correct answer: It must be in writing and signed by both parties

Maryland Home Improvement Law requires all change orders to be in writing and signed by both the contractor and the homeowner. Oral change orders are not enforceable.

Question 75: In masonry construction, what does the term 'wythe' refer to?

The mortar joint between two courses of brick
The decorative cap course at the top of a brick wall
The metal ties connecting brick veneer to a structural backup wall
A single vertical layer of masonry units one unit thick (Correct answer)

Correct answer: A single vertical layer of masonry units one unit thick

A wythe is a continuous vertical section of masonry one unit in thickness. A double-wythe wall has two parallel layers of masonry. Mortar joints are called beds (horizontal) or head joints (vertical), metal connectors are called wall ties or anchors, and the top decorative course is called a coping.

Question 76: During rough framing inspection, an inspector flags a notch cut into the bottom 1/3 of a floor joist at mid-span. Why is this a violation?

The notch reduces fire resistance below the required rating
Notches at mid-span are permitted only in ceiling joists, not floor joists
Notches must always be cut in the top 1/3 of any joist
The bottom edge of a joist at mid-span is in tension and notching significantly reduces bending capacity (Correct answer)

Correct answer: The bottom edge of a joist at mid-span is in tension and notching significantly reduces bending capacity

In a simple-span floor joist, the bottom fiber is under maximum tension stress at mid-span due to bending loads. Notching the bottom edge at mid-span removes material exactly where tensile stress is greatest, dramatically reducing the joist's bending strength. IRC and most codes prohibit notches in the middle third of a joist's span for this reason.

Question 77: A licensed Maryland Home Improvement salesperson may represent a maximum of how many licensed contractors at any given time?

One
Three
There is no limit
Two (Correct answer)

Correct answer: Two

According to the Maryland Home Improvement Commission (MHIC) regulations, a licensed salesperson is permitted to represent no more than two licensed contractors simultaneously.

Question 78: Which of the following must be included in a Maryland home improvement contract to protect both parties financially?

The contractor's personal credit score
Pre-authorization for the contractor to hire any subcontractor at any price
The homeowner's income verification
A clear payment schedule tied to project milestones (Correct answer)

Correct answer: A clear payment schedule tied to project milestones

A milestone-based payment schedule ensures money is released as work progresses, protecting consumers from prepaying and contractors from non-payment.

Question 79: What is the primary function of the MHIC?

To entertain the general public with music and shows
To protect the health and safety of the general public (Correct answer)
To promote unhealthy habits in the general public
To monitor the weather conditions for the general public

Correct answer: To protect the health and safety of the general public

The Maryland Home Improvement Commission (MHIC) was established with the core mission of protecting consumers who engage in home improvement projects. This protection extends to ensuring contractors are licensed, competent, and adhere to ethical business practices, thereby safeguarding the public's financial investment, health, and safety from unscrupulous or unqualified individuals.

Question 80: Which of the following types of work is generally EXCLUDED from the definition of 'home improvement' under Maryland Home Improvement Law?

Installing a new bathroom in an existing residence
New residential construction on a vacant lot (Correct answer)
Adding a deck to an existing home
Replacing a roof on a residential property

Correct answer: New residential construction on a vacant lot

Maryland's home improvement definition covers alterations, repairs, and additions to existing structures; new residential construction is generally excluded.

Maryland Home Improvement Contractor (MHIC) Exam

This exam certifies individuals to perform home improvement work in Maryland, covering business, law, and trade knowledge.

Questions

150 min

Time Limit

70%

To Pass

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