Preview Questions Plumber | Role Specific Skill

Question 1: What is the most effective way to prevent frost damage to outdoor plumbing systems during winter months?

Which action should you take?

Choose only one option

Install a larger diameter pipe

Insulate the pipes and use heat tape

Use of stainless steel pipes

Increase water flow to prevent freezing

Question 2: In pipe fitting, what is the correct method for joining copper pipes using soldering?

Which action should you take?

Choose only one option

Use of flux and heat without applying solder

Press-fit joints with no heat required

Using a pipe bender and welding the joint

Heat the joint, apply solder, and allow to cool

Question 3: In backflow prevention systems, what is the most critical factor to maintain the check valves in a working condition?

Which action should you take?

Choose only one option

Keeping the valves in high-pressure condition

Regular cleaning and testing for leaks

Using automatic control systems to test the valves

Using specialized lubricants to ensure smooth movement

Question 4: What is the code requirement for water pressure relief valves in commercial water heaters?

Which action should you take?

Choose only one option

They are not required for water heaters

They must be installed on the hot water outlet

They must be installed on both inlet and outlet sides

They must be installed on the cold water inlet

Question 5: When detecting gas leaks in highly pressurized systems, what is the best approach to prevent explosions or fire hazards during the detection process?

Which action should you take?

Choose only one option

Using nitrogen or carbon dioxide as a test medium

Ensuring a non-sparking tool is used for detection

Working under controlled conditions with specialized equipment

Using a dedicated leak detection room with flame suppression

Question 6: For a pressurized steam system, which material is most commonly used for pipe fitting to ensure high-temperature resistance?

Which action should you take?

Choose only one option

Stainless steel

Copper

Galvanized steel

PVC