NCCER Quality Control & Process Improvement 2 — Questions and Answers
Question 1: A handyman notices that drywall screws are consistently set too deep, leaving craters. What is the FIRST corrective action?
- Apply joint compound to fill craters
- Adjust the screw gun clutch setting (Correct answer)
- Replace the drywall screws with longer ones
- Sand the craters flush before painting
Correct answer: Adjust the screw gun clutch setting
Adjusting the clutch setting on the screw gun addresses the root cause of over-driving screws.
Question 2: Which quality control practice best prevents rework when installing ceramic tile?
- Applying grout before adhesive fully cures
- Laying out a dry run before setting tile with adhesive (Correct answer)
- Cutting all tiles before starting the layout
- Using the smallest grout joints possible
Correct answer: Laying out a dry run before setting tile with adhesive
Dry-fitting tiles before adhesive installation identifies layout problems before they become permanent.
Question 3: What does the term 'punch list' mean in construction quality control?
- A checklist of tools required for a job
- A list of deficiencies to correct before project completion (Correct answer)
- A scheduling document for subcontractors
- A log of materials ordered but not yet delivered
Correct answer: A list of deficiencies to correct before project completion
A punch list documents outstanding defects or incomplete items that must be addressed before final acceptance.
Question 4: When a client reports that a newly installed faucet drips after the handyman left, the BEST process improvement response is to:
- Offer a discount on the next job
- Return promptly, diagnose the cause, and document the failure mode (Correct answer)
- Blame the faucet manufacturer
- Replace the faucet with a different brand
Correct answer: Return promptly, diagnose the cause, and document the failure mode
Returning to diagnose and document the failure creates a feedback loop that prevents similar errors on future jobs.
Question 5: Which measurement tool is essential for verifying that a door frame is plumb during installation?
- Tape measure
- Speed square
- 4-foot level or plumb bob (Correct answer)
- Chalk line
Correct answer: 4-foot level or plumb bob
A level or plumb bob directly measures vertical alignment, which is required to confirm a frame is plumb.
Question 6: A handyman consistently finishes jobs 20% over the estimated time. Which process improvement step should come first?
- Raise prices to account for extra time
- Track time per task on several jobs to find where overruns occur (Correct answer)
- Hire an assistant
- Stop providing time estimates to clients
Correct answer: Track time per task on several jobs to find where overruns occur
Data collection through time tracking identifies which specific tasks take longer than estimated, enabling targeted improvement.
Question 7: What is the purpose of a moisture meter in quality control for flooring installation?
- To measure the thickness of existing flooring
- To verify subfloor moisture is within acceptable limits before installing new flooring (Correct answer)
- To check for hidden plumbing leaks in walls
- To determine the age of existing concrete slabs
Correct answer: To verify subfloor moisture is within acceptable limits before installing new flooring
Excessive subfloor moisture causes flooring to warp or buckle, and a moisture meter verifies conditions are acceptable before installation.
NCCER Quality Control & Process Improvement 2
A handyman notices that drywall screws are consistently set too deep, leaving craters.
What is the FIRST corrective action?