PC Safety Procedures & PPE 3

Question 1

Which type of gloves provides the best protection when handling PVC cement and primer?

Accepted Answer

Nitrile chemical-resistant gloves

Answer

Nitrile gloves resist the chemical solvents in PVC cement and primer, unlike leather or cotton which absorb chemicals.

Question 2

When trenching for underground plumbing, what is the minimum depth at which cave-in protection is required by OSHA?

Accepted Answer

5 feet

Answer

OSHA requires protective systems for trenches 5 feet or deeper unless the excavation is in stable rock.

Question 3

A plumber notices a strong rotten-egg odor while working in a crawl space. What action should be taken first?

Accepted Answer

Evacuate immediately and call the gas company

Answer

Rotten-egg odor indicates mercaptan-scented natural gas leak requiring immediate evacuation and contacting the gas utility.

Question 4

What is the purpose of a ground fault circuit interrupter (GFCI) when using power tools near water?

Accepted Answer

Trips the circuit when it detects current leakage to prevent electrocution

Answer

GFCIs detect small current leakages (as little as 5 milliamps) and interrupt power within milliseconds to prevent electrocution.

Question 5

Which fall protection method is required for plumbing work performed at heights of 6 feet or more in construction?

Accepted Answer

Guardrails, safety nets, or personal fall arrest systems

Answer

OSHA 1926.502 requires guardrails, safety nets, or personal fall arrest systems for construction work at 6 feet or above.

(PC) Plumber Certification Practice Test