Walmart Maintenance Technician Assessment — Questions and Answers

Question 1: When installing replacement baseboard trim, what angle should corner miter cuts typically be made at for a standard 90-degree corner?

30 degrees each piece
60 degrees each piece
45 degrees each piece (Correct answer)
22.5 degrees each piece

Correct answer: 45 degrees each piece

Two 45-degree miter cuts (one on each piece) combine to form a clean 90-degree corner joint.

Question 2: What symptom indicates a refrigerant leak in a commercial cooler?

The unit runs quieter than usual
The lights inside flicker
The unit runs constantly but temperatures stay above setpoint, and frost may form unevenly (Correct answer)
The door gaskets change color

Correct answer: The unit runs constantly but temperatures stay above setpoint, and frost may form unevenly

Low refrigerant from a leak causes the system to run continuously without reaching target temperature, and uneven frost patterns occur due to insufficient refrigerant distribution.

Question 3: When reviewing a PM schedule, the maintenance supervisor notes that several tasks are consistently pushed past their due date. What is the best corrective action?

Delete overdue tasks from the schedule to reset compliance
Assign all PM to a single technician to improve accountability
Extend all PM intervals to make compliance easier
Analyze root causes (staffing, parts, time) and adjust resources or intervals accordingly (Correct answer)

Correct answer: Analyze root causes (staffing, parts, time) and adjust resources or intervals accordingly

Consistent overdue tasks signal a systemic problem — root cause analysis identifies whether staffing, parts availability, or interval design needs adjustment.

Question 4: A floor scrubber's squeegee blade is leaving water streaks after each pass. This is identified during PM. What is the most likely root cause?

The solution tank is overfilled
The recovery tank is full
The squeegee blade is worn, cracked, or installed with the wrong edge down (Correct answer)
The brush pressure is set too high

Correct answer: The squeegee blade is worn, cracked, or installed with the wrong edge down

A worn, cracked, or improperly installed squeegee blade cannot form a proper seal against the floor, leaving water streaks with each pass.

Question 5: A fluorescent light fixture flickers intermittently. What is the MOST likely cause?

Overloaded circuit breaker
Incorrect wire gauge
Grounding fault in the panel
Faulty ballast or lamp (Correct answer)

Correct answer: Faulty ballast or lamp

Intermittent flickering in fluorescent fixtures is most commonly caused by a failing ballast or end-of-life lamp.

Question 6: What should be included in a maintenance department's safety meeting?

Sales targets only
Employee birthday celebrations
Review of recent incidents, safety tips, hazard reports, and updates on safety policies (Correct answer)
Only announcements about store hours

Correct answer: Review of recent incidents, safety tips, hazard reports, and updates on safety policies

Safety meetings should address recent incidents to learn from them, proactive safety tips, employee-reported hazards, and any changes to safety procedures.

Question 7: In a variable refrigerant flow (VRF) system serving a Walmart office area, what determines how each indoor unit calls for heating or cooling?

A manual valve at each indoor unit
The outdoor unit decides based on outdoor temperature
Individual room thermostats or controllers for each indoor unit (Correct answer)
A central thermostat controlling all indoor units simultaneously

Correct answer: Individual room thermostats or controllers for each indoor unit

VRF systems allow each indoor unit to be independently controlled by its own thermostat or remote controller to meet individual zone demands.

Question 8: What is the purpose of a P-trap under a sink?

To hold water that creates a seal preventing sewer gases from entering the building (Correct answer)
To filter particles from wastewater
To catch lost items
To regulate water pressure

Correct answer: To hold water that creates a seal preventing sewer gases from entering the building

The P-trap's water seal blocks sewer gases from traveling up through the drain into the building, maintaining indoor air quality and preventing health hazards.

Question 9: What is the GHS system used for in maintenance work?

Rating equipment quality
Providing a globally standardized system for classifying and labeling hazardous chemicals (Correct answer)
Tracking employee schedules
Measuring building safety scores

Correct answer: Providing a globally standardized system for classifying and labeling hazardous chemicals

The Globally Harmonized System provides standardized hazard classification, labeling (with pictograms), and Safety Data Sheet formats for chemicals used worldwide.

Question 10: What is the purpose of maintaining an equipment asset registry?

To track all equipment including location, model, serial number, warranty, and maintenance history (Correct answer)
To count the number of assets for tax purposes only
To impress corporate visitors
To satisfy fire department requirements

Correct answer: To track all equipment including location, model, serial number, warranty, and maintenance history

An asset registry provides essential information for maintenance planning, warranty tracking, replacement budgeting, and emergency response when equipment identification is needed.

Question 11: A maintenance technician notices a wet floor near a refrigeration unit. What is the FIRST action to take?

Repair the refrigeration unit immediately
Place wet floor signs and cordon off the area (Correct answer)
Continue working and note it in the shift log
Report it to HR

Correct answer: Place wet floor signs and cordon off the area

Immediately securing the hazard area with wet floor signs prevents slip-and-fall injuries while the repair is arranged.

Question 12: What is the sign of a failing water heater in a commercial setting?

The water heater operates too quietly
The water heater makes no noise at all
The pilot light is blue
Rusty water, inconsistent temperatures, unusual noises, or visible leaks around the base (Correct answer)

Correct answer: Rusty water, inconsistent temperatures, unusual noises, or visible leaks around the base

These symptoms indicate various water heater problems: rusty water suggests tank corrosion, inconsistent temperatures indicate element or thermostat issues, and base leaks indicate tank failure.

Question 13: What is the EPA Section 608 certification required for?

Selling HVAC equipment
Operating a forklift
Installing electrical panels
Purchasing and handling refrigerants in stationary systems (Correct answer)

Correct answer: Purchasing and handling refrigerants in stationary systems

EPA Section 608 certification is required by federal law for anyone who purchases, handles, or recovers refrigerants in stationary HVAC and refrigeration systems.

Question 14: What does the term 'on center' (OC) mean when referring to stud spacing in wall framing?

The measurement from the outer edge of one stud to the outer edge of the next
The measurement from the center of one stud to the center of the next (Correct answer)
The distance between the inner faces of adjacent studs
The total number of studs per linear foot of wall

Correct answer: The measurement from the center of one stud to the center of the next

On center (OC) spacing is measured from the centerline of one framing member to the centerline of the next.

Question 15: Why should electrical equipment be de-energized and locked out before performing preventive maintenance tasks that involve internal components?

To prevent accidental energization that could cause injury or equipment damage (Correct answer)
To save electricity during the PM process
To allow the technician to reset error codes
Because PM cannot be done while equipment is warm

Correct answer: To prevent accidental energization that could cause injury or equipment damage

Lockout/tagout (LOTO) prevents unexpected energization during internal PM tasks, protecting the technician from electrical shock or entanglement with moving parts.

Question 16: Under OSHA's Hazard Communication Standard, what must be posted or available for every chemical used in the facility?

A Safety Data Sheet (SDS) (Correct answer)
A chemical inventory list only
An MSDS from before 2012
A purchase receipt

Correct answer: A Safety Data Sheet (SDS)

OSHA's HazCom Standard (29 CFR 1910.1200) requires a current Safety Data Sheet for every hazardous chemical used in the workplace.

Question 17: A dock seal or dock shelter is torn and allows outside air and rain into the facility. The immediate safety concern is:

Increased forklift fuel consumption
Loss of wi-fi signal near the dock
Damage to the dock leveler
Slippery wet floor creating slip and fall hazard (Correct answer)

Correct answer: Slippery wet floor creating slip and fall hazard

Water intrusion from a damaged dock seal creates wet floor conditions that are a direct slip-and-fall hazard for associates.

Question 18: What is a confined space in maintenance work?

An area large enough to enter but not designed for continuous occupancy, with limited entry/exit (Correct answer)
Any small room
A locked storage room
Any underground area

Correct answer: An area large enough to enter but not designed for continuous occupancy, with limited entry/exit

OSHA defines a confined space as an area large enough to enter, with limited entry and exit, and not designed for continuous occupancy, such as tanks, vaults, or crawl spaces.

Question 19: Which sandpaper grit is most appropriate for the final sanding of joint compound before painting drywall in a commercial facility?

120-grit (Correct answer)
100-grit
220-grit
60-grit

Correct answer: 120-grit

120-grit sandpaper is the standard final grit for drywall joint compound, providing a smooth surface without leaving scratches that telegraph through paint.

Question 20: A conveyor belt tracking consistently to one side and running off the edge is best corrected by:

Lubricating the drive chain
Increasing belt speed
Adjusting the tail pulley or tracking rollers (Correct answer)
Replacing the belt immediately

Correct answer: Adjusting the tail pulley or tracking rollers

Misaligned tail pulleys or tracking rollers cause belt drift; adjusting them centers the belt on the frame.

Question 21: What is the National Electrical Code (NEC)?

A building design standard
A code for emergency communication
The US standard for safe electrical installation and maintenance practices (Correct answer)
A data encryption standard

Correct answer: The US standard for safe electrical installation and maintenance practices

The NEC (NFPA 70) is the widely adopted US standard that provides guidelines for safe electrical installation, wiring methods, and equipment to minimize fire and shock hazards.

Question 22: What does a GFCI outlet protect against?

Lightning strikes
Overloaded circuits
Power surges
Ground faults that could cause electrical shock (Correct answer)

Correct answer: Ground faults that could cause electrical shock

A Ground Fault Circuit Interrupter detects current leakage to ground and rapidly shuts off power, protecting against electrical shock, especially in wet locations.

Question 23: How often should a grease trap in a commercial kitchen be cleaned?

Once a year
Only when it overflows
Every 5 years
When it reaches 25% capacity or at least monthly, per local codes (Correct answer)

Correct answer: When it reaches 25% capacity or at least monthly, per local codes

Grease traps should be cleaned when they reach 25% capacity or monthly, whichever comes first. Local codes may specify more frequent cleaning schedules.

Question 24: During PM on a refrigeration unit, a technician finds the condenser coils heavily coated with dust and debris. What is the immediate risk if this is not corrected?

The evaporator coils will freeze over immediately
The electrical panel will trip a breaker
The refrigerant will leak out faster
The compressor will overheat due to reduced heat dissipation (Correct answer)

Correct answer: The compressor will overheat due to reduced heat dissipation

Dirty condenser coils cannot release heat efficiently, causing the compressor to run hotter and longer, risking overheating and early compressor failure.

Question 25: What is the benefit of maintaining a maintenance log for each piece of equipment?

It is only useful for auditors
It slows down maintenance work
It tracks maintenance history, identifies patterns, helps predict failures, and supports warranty claims (Correct answer)
It creates unnecessary paperwork

Correct answer: It tracks maintenance history, identifies patterns, helps predict failures, and supports warranty claims

Maintenance logs provide valuable data for predicting equipment failures, optimizing maintenance schedules, justifying replacement decisions, and supporting warranty claims.

Question 26: Which class of fire extinguisher is appropriate for electrical equipment fires in a maintenance area?

Class D
Class A
Class B
Class C (Correct answer)

Correct answer: Class C

Class C extinguishers are designed for electrical fires and use non-conductive agents that won't conduct electricity back to the user.

Question 27: In a building's roof drainage system, what is an 'overflow drain' or 'scupper' designed to handle?

Condensation from rooftop HVAC equipment
Normal daily rainfall volumes
Snow melt during winter months only
Excess water if primary drains become blocked, preventing roof overload (Correct answer)

Correct answer: Excess water if primary drains become blocked, preventing roof overload

Overflow drains and scuppers provide emergency drainage to prevent dangerous water accumulation if primary roof drains are clogged.

Question 28: Which of the following actions violates proper scaffold safety during a maintenance repair at height?

Tying off the scaffold to the building structure
Standing on a plank that overhangs the end support by 14 inches (Correct answer)
Using a guardrail on all open sides
Inspecting the scaffold before each work shift

Correct answer: Standing on a plank that overhangs the end support by 14 inches

Planks should overhang end supports by no more than 12 inches to prevent tipping; a 14-inch overhang exceeds OSHA's safe limit.

Question 29: Which of the following best describes 'condition-based' preventive maintenance?

Maintenance triggered by actual equipment condition indicators such as vibration or temperature (Correct answer)
Maintenance performed on a fixed calendar schedule regardless of equipment state
Maintenance done only after a breakdown occurs
Maintenance scheduled by the original equipment manufacturer alone

Correct answer: Maintenance triggered by actual equipment condition indicators such as vibration or temperature

Condition-based PM uses real-time indicators like vibration analysis or temperature trends to trigger maintenance when the equipment actually needs it.

Question 30: What is the purpose of a soft-starter on a large electric motor in a retail facility?

Convert AC to DC for the motor
Provide overcurrent protection
Limit inrush current during motor startup (Correct answer)
Reduce motor speed during normal operation

Correct answer: Limit inrush current during motor startup

A soft-starter gradually ramps up voltage to the motor, limiting inrush current during startup and reducing mechanical stress.

Question 31: What is an arc flash hazard?

A type of lightning
An explosive release of energy caused by an electrical arc between conductors (Correct answer)
A camera flash in the electrical room
A flickering light

Correct answer: An explosive release of energy caused by an electrical arc between conductors

An arc flash is an explosive release of energy that occurs when current flows through air between conductors, producing extreme heat (up to 35,000°F), pressure waves, and intense light.

Question 32: What is the correct response if you are asked to perform a maintenance task you are not trained for?

Delegate it to a less experienced worker
Watch a YouTube video and proceed
Refuse the task and explain that you need proper training before performing it safely (Correct answer)
Attempt it anyway and learn as you go

Correct answer: Refuse the task and explain that you need proper training before performing it safely

Workers have the right and responsibility to refuse tasks they are not trained to perform safely. Proper training is required before performing potentially hazardous work.

Question 33: A high-traffic Walmart restroom uses flushometer valves instead of tank-type toilets. What is a key maintenance advantage of flushometer valves?

They use significantly more water per flush
They are easier to repair because no special tools are needed
They require no water pressure to operate
They reset faster and handle continuous heavy use better than gravity-tank toilets (Correct answer)

Correct answer: They reset faster and handle continuous heavy use better than gravity-tank toilets

Flushometer valves flush directly from the supply line and reset in seconds, making them ideal for high-traffic commercial restrooms.

Question 34: A quarterly PM task requires calibrating a digital temperature sensor in a cold storage area. What reference standard should the technician use for calibration?

Another digital sensor of the same brand
The display temperature shown on the storage unit
An estimated reading based on product feel
A NIST-traceable reference thermometer (Correct answer)

Correct answer: A NIST-traceable reference thermometer

Calibration must reference a NIST-traceable thermometer to ensure the sensor's accuracy is verifiable against a nationally recognized standard.

Question 35: A walk-in cooler evaporator fan runs but the cooler temperature rises above set point. What is the most likely culprit?

Fluorescent light inside the cooler
Fan blade direction
Evaporator coil frost buildup blocking airflow (Correct answer)
Door handle style

Correct answer: Evaporator coil frost buildup blocking airflow

Frost accumulation on the evaporator coil insulates it and blocks airflow, drastically reducing cooling capacity even when the fan runs.

Question 36: What color wire indicates a ground conductor in US electrical systems?

White
Red
Green or bare copper (Correct answer)
Black

Correct answer: Green or bare copper

In US electrical wiring, green insulation or bare copper wire indicates the equipment grounding conductor, which provides a safe path for fault currents.

Question 37: In electrical systems, what does 'grounding' a circuit primarily protect against?

Voltage fluctuations
Electric shock and equipment damage from fault currents (Correct answer)
Overloading the neutral wire
Power surges from lightning only

Correct answer: Electric shock and equipment damage from fault currents

Grounding provides a safe path for fault current to flow, tripping the breaker and protecting people and equipment from dangerous voltages.

Question 38: A wooden pallet storage rack shows signs of wood rot at the base posts. Which action is MOST appropriate?

Take the rack out of service and replace the damaged posts (Correct answer)
Reduce the load on the rack and monitor monthly
Reinforce only the visible surface with wood filler
Paint over the rot to seal it in

Correct answer: Take the rack out of service and replace the damaged posts

Structural wood rot compromises load-bearing integrity and the rack must be taken out of service until rotted components are replaced.

Question 39: What is the purpose of a ballast in a fluorescent light fixture?

To regulate the current flowing through the fluorescent lamp (Correct answer)
To filter the light color
To hold the bulb in place
To protect against water damage

Correct answer: To regulate the current flowing through the fluorescent lamp

A ballast regulates the electrical current to the fluorescent lamp, providing the initial high voltage to start the lamp and then limiting current during operation.

Question 40: A refrigerated display case is not maintaining temperature but the compressor is running. What should be inspected first?

Display lighting wattage
Condenser coils for dirt or ice blockage (Correct answer)
Fan motor color
Store ambient temperature

Correct answer: Condenser coils for dirt or ice blockage

Dirty or iced-over condenser coils restrict airflow and reduce heat transfer, causing a running compressor to fail to cool adequately.

Question 41: Which type of motor is most commonly used for HVAC compressors in large Walmart stores?

DC shunt motor
Universal series motor
3-phase induction motor (Correct answer)
Single-phase capacitor-start motor

Correct answer: 3-phase induction motor

3-phase induction motors are standard for HVAC compressors in commercial facilities due to their efficiency and reliability.

Question 42: What tool is used to verify that a circuit is de-energized before working on it?

A circuit breaker finder
A voltage tester or multimeter (Correct answer)
A flashlight
A screwdriver

Correct answer: A voltage tester or multimeter

A voltage tester or multimeter measures voltage to confirm zero energy before work begins. Always test the tester on a known live circuit first to verify it is working.

Question 43: LED lighting is replacing fluorescent in many retail stores primarily because:

LEDs are cheaper to purchase
LEDs are brighter
LEDs use less energy, last longer, and require less maintenance (Correct answer)
Fluorescent lights are illegal

Correct answer: LEDs use less energy, last longer, and require less maintenance

LEDs offer significant advantages in energy efficiency (using 50-70% less energy), lifespan (50,000+ hours vs 20,000), and reduced maintenance costs.

Question 44: A maintenance technician is installing baseboard trim in a Walmart break room where two walls meet at a 90-degree corner. What angle should each miter cut be to form a proper inside corner?

22.5 degrees on each piece
60 degrees on each piece
45 degrees on each piece (Correct answer)
30 degrees on each piece

Correct answer: 45 degrees on each piece

Each piece of trim is cut at 45 degrees so that the two pieces together form a tight 90-degree inside corner joint (45° + 45° = 90°).

Question 45: When using a pipe locator tool before digging to repair an underground line at a Walmart facility, the technician is following which safety principle?

Confined space entry protocol
Dig safe / call before you dig (Correct answer)
Personal protective equipment (PPE) standards
Lock-out/tag-out (LOTO)

Correct answer: Dig safe / call before you dig

Locating underground utilities before excavation (call 811 / Dig Safe) is required by law to prevent striking buried gas, electric, water, or communication lines.

Question 46: A Walmart restroom expansion tank on a water heater is required when the building has which type of valve on the main supply?

A check valve on a secondary branch only
A gate valve
A ball valve
A pressure-reducing valve (PRV) creating a closed system (Correct answer)

Correct answer: A pressure-reducing valve (PRV) creating a closed system

A pressure-reducing valve creates a closed system where thermal expansion has nowhere to go, requiring an expansion tank to prevent pressure buildup.

Question 47: Which fastener should a Walmart maintenance technician use when attaching a heavy equipment bracket directly to a concrete block (CMU) wall?

Wedge anchor bolt (Correct answer)
Standard wood screw with a plastic anchor
Finish nail
Toggle bolt

Correct answer: Wedge anchor bolt

Wedge anchor bolts are designed specifically for concrete and masonry applications, expanding within a drilled hole to provide the high pull-out strength needed for heavy loads.

Question 48: During a Walmart restroom inspection, you find a toilet that continuously runs after flushing. Which component should you check first?

The drain vent stack
The wax ring seal
The supply shut-off valve
The flushometer diaphragm or flapper (Correct answer)

Correct answer: The flushometer diaphragm or flapper

A continuously running toilet is most often caused by a worn or damaged flapper or flushometer diaphragm that fails to create a proper seal.

Question 49: What safety device prevents a refrigeration compressor from operating when suction pressure drops too low?

Oil pressure safety switch
Thermal overload relay
High-pressure cutout switch
Low-pressure cutout switch (Correct answer)

Correct answer: Low-pressure cutout switch

A low-pressure cutout switch shuts down the compressor if suction pressure drops below a safe threshold, preventing damage from refrigerant loss or restriction.

Question 50: Under OSHA's fall protection standard, at what height above a lower level must maintenance workers use fall protection in general industry?

4 feet (Correct answer)
6 feet
10 feet
8 feet

Correct answer: 4 feet

OSHA's general industry standard (29 CFR 1910.23) requires fall protection when workers are exposed to fall hazards of 4 feet or more.

Question 51: A shopping cart retriever vehicle suddenly stops moving forward while in retrieval mode. The first diagnostic step is:

Inspect the cart hitching hook only
Refuel with diesel
Check battery charge and safety cut-off switches (Correct answer)
Replace the operator seat

Correct answer: Check battery charge and safety cut-off switches

Battery state and safety cut-off switches are the most frequent causes of sudden drive loss on electric cart retrievers.

Question 52: What is the primary purpose of a seismic shut-off valve on a building's gas supply?

Automatically stop gas flow when seismic activity above a set threshold is detected (Correct answer)
Shut off gas when carbon monoxide is detected
Reduce gas pressure after an earthquake
Prevent gas leaks during high-wind events

Correct answer: Automatically stop gas flow when seismic activity above a set threshold is detected

Seismic shut-off valves automatically close the gas supply when ground movement exceeds a set threshold, preventing gas leaks and fires after earthquakes.

Question 53: A PM checklist item calls for 'inspecting belt tension' on a conveyor. What symptom indicates the belt is too loose?

Belt runs hotter than normal
Belt tracking drifts to one side only
Belt slips or squeals under load (Correct answer)
Belt surface shows cracking

Correct answer: Belt slips or squeals under load

A loose belt slips and squeals under load because it cannot transfer torque efficiently from the drive pulley.

Question 54: What is the most common cause of automatic door failure in a retail environment?

Customer misuse
Wind damage
Dirty or misaligned sensors, obstructed tracks, or power supply issues (Correct answer)
Temperature changes

Correct answer: Dirty or misaligned sensors, obstructed tracks, or power supply issues

Automatic door sensors can become dirty or misaligned over time, tracks can accumulate debris, and electrical connections can loosen, all causing operation failures.

Question 55: A Walmart technician needs to join a copper pipe to a CPVC pipe. What is the correct method?

Use a copper-to-CPVC transition fitting designed for this connection (Correct answer)
Use standard PVC cement on both materials
Solder them together directly
Wrap the joint in Teflon tape only

Correct answer: Use a copper-to-CPVC transition fitting designed for this connection

Copper and CPVC require a manufacturer-approved dielectric or transition fitting because they cannot be directly soldered or cemented together.

Question 56: What should you do if you smell burning insulation near an electrical panel?

Open the panel to investigate
Continue working and monitor the smell
Spray water on the panel
Evacuate the area, de-energize the panel from a safe distance if possible, and call for qualified help (Correct answer)

Correct answer: Evacuate the area, de-energize the panel from a safe distance if possible, and call for qualified help

Burning insulation indicates a serious electrical fault that could cause fire or arc flash. The area should be evacuated and power disconnected safely.

Question 57: During a facility walk, a maintenance technician notices efflorescence (white mineral deposits) on a concrete wall near a buried pipe. This most likely indicates:

High humidity from the HVAC system
Normal concrete curing
A slow water leak saturating the surrounding soil and concrete (Correct answer)
Recent exterior painting overspray

Correct answer: A slow water leak saturating the surrounding soil and concrete

Efflorescence on concrete walls near buried pipes is a classic sign of water infiltration, indicating a possible underground pipe leak.

Question 58: When performing routine maintenance on a Walmart rooftop HVAC unit, what is the correct torque sequence for tightening electrical connections in the control panel?

Tighten in any order as long as all connections are secure
Follow the manufacturer's specified torque values in the service manual (Correct answer)
Use maximum torque to ensure connections never loosen
Hand-tighten only to avoid damaging terminals

Correct answer: Follow the manufacturer's specified torque values in the service manual

Manufacturer-specified torque values must be followed to ensure reliable electrical connections without damaging terminals, wires, or bus bars.

Question 59: What type of fastener is BEST suited for attaching a heavy wall-mounted display bracket to a concrete block wall in a Walmart store?

Wood screws with plastic anchors
Drywall toggle bolts
Masonry anchors (sleeve or wedge anchors) (Correct answer)
Standard lag bolts driven directly into concrete

Correct answer: Masonry anchors (sleeve or wedge anchors)

Masonry sleeve or wedge anchors are specifically designed to provide secure hold in concrete block walls under heavy loads.

Question 60: A photoelectric sensor on an automatic door fails to trigger. The FIRST diagnostic step should be:

Check the power supply voltage to the sensor (Correct answer)
Adjust the door closing speed
Replace the sensor immediately
Inspect the door frame for physical damage

Correct answer: Check the power supply voltage to the sensor

Verifying the power supply voltage is the first step, as no power is the most common and easiest-to-diagnose cause of sensor failure.

Walmart Maintenance Technician Assessment

The Walmart Maintenance Technician Assessment covers electrical systems, HVAC and refrigeration, plumbing and facilities, safety and compliance, preventive maintenance programs, equipment troubleshooting, and building systems management for retail facility technicians.

Questions

60 min

Time Limit

70%

To Pass

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