Preview Questions Plumber | Role Specific Skill

Question 1: What is the most common failure in drainage systems that requires routine maintenance in a multi-story building?

Which action should you take?

Choose only one option

Cracking and displacement of joints

Tree root intrusion

Structural damage from ground movement

Blockages caused by debris accumulation

Question 2: During installation of shower valves, what is the most important aspect to ensure consistent water temperature at the faucet?

Which action should you take?

Choose only one option

Use of a pressure-balancing valve

Use of a thermostatic mixing valve

Correct pipe diameter selection

Installation of a bypass loop system

Question 3: What is the correct procedure for installing pipe supports on a long run of horizontal piping to prevent sagging?

Which action should you take?

Choose only one option

Use of custom pipe brackets

Place supports only at the end of the pipe

Place supports at regular intervals according to the pipe size

Install supports every 10 feet

Question 4: What is the maximum allowable distance between a plumbing fixture and the nearest vent, according to the IPC?

Which action should you take?

Choose only one option

10 feet

20 feet

5 feet

15 feet

Question 5: Which method is used to prevent water hammer in a newly installed plumbing system?

Which action should you take?

Choose only one option

Use flexible connections

Install air chambers

Install a pressure-reducing valve

Install a check valve

Question 6: When installing a water supply system in a commercial building, what is the minimum required slope for the drainage pipes?

Which action should you take?

Choose only one option

3/8 inch per foot

1/2 inch per foot

1/4 inch per foot

1/8 inch per foot