Chapter 5 (Plumbing code)

How many working days in advance must the RMP notify the administrative authority before inspection?

• A. 1 day
  

• B. 2 days
  

• C. 3 days
  

• D. 5 days

When can a plumbing system be covered or used?

• A. After completion of installation

• B. After approval of the administrative authority

• C. After the first water test

• D. Anytime during construction

What are the approved testing media for plumbing, drainage, and vent systems?

• A. Water and oil

• C. Water and air

• D. Steam and air

During a water test, how high should the water head be maintained for 15 minutes?

• A. 1 meter

• B. 2 meters

• C. 3 meters

• D. 4 meters

What air pressure should be applied for an air test?

• A. 20.5 kPa
  

• B. 34.5 kPa
  

• C. 50.5 kPa
  

• D. 100 kPa

What is the equivalent measurement of 34.5 kPa in mercury head?

• A. 100 mm

• B. 200 mm

• C. 254 mm

• D. 300 mm

What is the correct pressure requirement for testing hot and cold water supply pipes?

• A. 100% of the working pressure

• B. 125% of the working pressure

• C. 150% of the working pressure

• D. 200% of the working pressure

What can be used along with air pressure to detect leaks?

• A. Oil and grease

• B. Soap suds or smoke

• C. Sand and gravel

• D. Boiling water

Why must all openings be closed except the highest level during a water test?

• A. To prevent water from overflowing
  

• B. To ensure accurate pressure testing throughout the system
  

• C. To allow air circulation
  

• D. To increase water flow rate

How long should an air test be conducted to check for leaks?

• A. 5 minutes

• B. 10 minutes

• C. 15 minutes

• D. 30 minutes