NCCER Maintenance & Repair 2

Question 1

When repairing a leaking compression faucet, which part is most commonly replaced to stop the drip?

Accepted Answer

Seat washer at the bottom of the stem

Answer

The seat washer at the bottom of the stem wears against the valve seat and is the primary cause of dripping in compression faucets.

Question 2

A GFCI outlet keeps tripping immediately after being reset. What is the most likely cause?

Accepted Answer

There is a ground fault or moisture in the circuit downstream

Answer

Immediate re-tripping after reset indicates a persistent ground fault or moisture presence in the protected circuit.

Question 3

What is the correct procedure for patching a hole larger than 6 inches in diameter in drywall?

Accepted Answer

Cut back to studs or install backing boards and attach a new drywall patch

Answer

Holes larger than 6 inches require structural support from studs or backing boards to properly anchor the new drywall patch.

Question 4

When lubricating a squeaky door hinge, which product is most appropriate for long-lasting results?

Accepted Answer

White lithium grease or petroleum jelly

Answer

White lithium grease or petroleum jelly provides lasting lubrication because they stay in place and don't evaporate like solvent-based sprays.

Question 5

A toilet runs continuously after flushing. Lifting the tank lid reveals the float is sitting too high. What adjustment corrects this?

Accepted Answer

Bend or adjust the float arm/rod downward so the fill valve shuts off at a lower water level

Answer

Lowering the float arm causes the fill valve to shut off sooner, preventing water from continuously flowing into the overflow tube.

(NCCER) National Center for Construction Education and Research Certified Handyman Practice Test