CEC Labor Productivity & Rates 2

Question 1

A crew installs 480 linear feet of pipe in an 8-hour shift. What is the crew's productivity rate in linear feet per hour?

Accepted Answer

60 LF/hr

Answer

480 LF ÷ 8 hours = 60 linear feet per hour.

Question 2

Which factor most significantly reduces labor productivity when working in confined spaces?

Accepted Answer

Increased material handling time and restricted movement

Answer

Confined spaces restrict worker movement and require additional safety procedures, substantially reducing output per labor-hour.

Question 3

An estimator uses a 'learning curve' adjustment in labor calculations. What does this account for?

Accepted Answer

Increasing worker efficiency as repetitive tasks are performed

Answer

Learning curves reflect that workers become faster and more efficient as they repeat the same task throughout a project.

Question 4

The Davis-Bacon Act primarily affects construction labor estimates by requiring:

Accepted Answer

Payment of prevailing wages on federally funded projects

Answer

The Davis-Bacon Act mandates that workers on federal construction contracts be paid the locally prevailing wage and fringe benefits.

Question 5

If a masonry crew's base productivity is 120 block/hour but a 15% inefficiency factor is applied, what is the adjusted rate?

Accepted Answer

102 block/hour

Answer

120 × (1 − 0.15) = 120 × 0.85 = 102 block/hour.

(CEC) Construction Estimator Certification Practice Test