Mixed Deck — All CFB Topics Flashcards

What is the purpose of a 'capillary break layer' in a USGA-method golf green or premium sports field construction?

Answer: To stop water from wicking upward from the gravel into the sand root zone

A properly sized gravel layer creates a capillary break that prevents water from wicking upward into the sand root zone, keeping the interface between layers hydraulically distinct.

Which of the following is classified as an 'indirect cost' on a construction project?

Answer: Project superintendent salary

A project superintendent's salary is an indirect (general conditions) cost because it supports the overall project rather than being tied to a specific work item.

Which code section typically addresses egress window requirements for sleeping rooms in residential construction?

Answer: IRC R310

IRC Section R310 specifies emergency escape and rescue opening requirements, including minimum dimensions for egress windows in sleeping rooms.

Why is regular aeration important for natural turf fields?

Answer: To enhance root development and water absorption

Regular aeration is essential for natural turf fields as it involves creating small holes in the soil to alleviate compaction. This process allows air, water, and nutrients to penetrate deeper into the root zone, promoting stronger root development and improving the turf's ability to absorb water and resist stress.

Which term describes the process of transferring risk to subcontractors by requiring them to provide their own cost estimates for defined scopes?

Answer: Competitive subcontractor bidding

Competitive subcontractor bidding transfers the cost risk for specific scopes to subs who submit firm prices, reducing the general contractor's estimating exposure.

What is the triple constraint in CFB project management?

Answer: The interdependent relationship between scope, time, and cost

Scope, time, and cost are interdependent: changing one affects the others. Managers must balance all three.

A field builder notices a trench is 6 feet deep with no protective system in place. What is the correct immediate action?

Answer: Stop work and evacuate workers from the trench

OSHA requires a protective system (sloping, shoring, or shielding) for any trench 5 feet or deeper; workers must be evacuated until it is in place.

Which estimating method uses historical cost data from similar completed projects to project costs for a new project?

Answer: Analogous estimating

Analogous estimating relies on actual costs from comparable past projects as a basis for estimating the current project.

Which right is guaranteed to construction workers under OSHA's worker rights provisions?

Answer: The right to refuse work that poses imminent danger without fear of retaliation

Section 11(c) of the OSH Act protects workers who refuse work presenting imminent danger from employer retaliation.

A phantom line (alternating long dash, short dash, short dash) is typically used to show:

Answer: Alternate positions or removed parts for reference

Phantom lines depict alternate positions of moving parts, adjacent parts, or features that have been removed but are shown for reference.

What is the purpose of a 'pre-emergent herbicide' application on a natural grass field?

Answer: To prevent weed seeds from germinating

Pre-emergent herbicides form a chemical barrier in the soil that inhibits weed seed germination before seedlings can establish.

What is the optimal soil pH range for most cool-season turfgrasses used on sports fields?

Answer: 6.0–7.0

Cool-season grasses thrive at pH 6.0–7.0, the range at which macro and micronutrients are most available and soil microbial activity is optimized.

What does the term 'allowance' represent in a construction cost estimate?

Answer: A reserved sum for undefined or uncertain scope items

An allowance is a placeholder dollar amount included for scope items whose details are not yet fully defined at the time of estimating.

What does the Standard Proctor Test determine?

Answer: Maximum dry density and optimum moisture content for compaction

The Proctor test identifies the optimum moisture content at which a soil achieves its maximum dry density when compacted, which is used to set compaction specifications.

What is a quality audit in CFB practice?

Answer: Evaluating whether quality standards and procedures are followed

Quality audits examine whether established standards and procedures are implemented effectively, identifying non-conformances.

On a soil penetrometer, readings consistently above 300 psi typically indicate:

Answer: Severe compaction that significantly restricts root growth

Penetrometer readings above 300 psi signal severe compaction that physically prevents root penetration and reduces turfgrass vigor.

In which situation would a field builder apply the 'prescriptive path' rather than the 'performance path' for code compliance?

Answer: When following standard framing tables from the IRC without engineering calculations

The prescriptive path uses pre-approved tables and methods from the code (like IRC framing tables) without requiring engineering calculations.

Which document formally authorizes a project and identifies the project manager's authority?

Answer: Project Charter

The project charter officially authorizes the project, names the project manager, and grants authority to apply organizational resources.

What is an internal control in CFB financial management?

Answer: A process providing assurance about financial reporting reliability

Internal controls safeguard assets, ensure accurate reporting, promote efficiency, and ensure compliance.

A field builder notices that two drawings in the same set show conflicting dimensions for the same wall. What is the correct course of action?

Answer: Notify the project engineer or architect for clarification before proceeding

Conflicting dimensions must be resolved by the design team before construction proceeds to avoid costly rework or structural errors.