ARIZONA PLUMBING RC 37 LATEST

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ARIZONA PLUMBING RC -37 LATEST

PRACTICE EXAM QUESTIONS AND

ANSWERS

Question 1: What minimum pressure is required to test a drainage system with

air?

• 3 psi
• 5 psi
• 10 psi
• 15 psi

Correct Answer: B) 5 psi

Question 2: What maximum fixture unit load is allowed on 2 inch trap?

• 2 fu
• 3 fu
• 4 fu
• 6 fu

Correct Answer: B) 3 fu

Question 3: Refer to the illustration. Given: This one inch pipe offset uses 45 degree elbows and an offset distance of 8 inches at "B". What is the center to center length of the diagonal "A"?

• 10-1/2 inches
• 11-1/8 inches
• 11-5/16 inches

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• 12-1/4 inches

Correct Answer: C) 11-5/16 inches

Question 4: Which of the following is NOT required to calculate water pipe

sizes?

• Total developed length of pipe
• Maximum street pressure
• Number of fixture units
• Minimum daily temperature

Correct Answer: B) Maximum street pressure

Question 5: Which of the following backflow prevention devices protects

against back pressure?

• Atmospheric vacuum breaker
• Air gap
• Double check-valve assembly
• Pressure vacuum breaker

Correct Answer: C) Double check-valve assembly

Question 6: What is the name of the device in a hot water heating system that

allows trapped air to escape from the system?

• Air vent
• Relief valve
• Expansion tank
• Check valve

Correct Answer: A) Air vent

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Question 7: Given: A low hazard boiler system does not require chemical additives, but has the potential to cause back pressure. What minimum back flow protection is required for the water make up supply?

• Atmospheric vacuum breaker
• Double check valve with intermediate vent
• Reduced pressure zone assembly
• Simple check valve

Correct Answer: B) Double check valve with intermediate vent

Question 8: What is required for materials that are used in medical gas piping

systems?

• Delivered to job site cleaned and capped
• Painted with green identifying bands
• Flushed with chlorine before use
• Sterilized with ultraviolet light

Correct Answer: A) Delivered to job site cleaned and capped

Question 9: What is the purpose of an expansion tank?

• It increases water pressure in the system
• It allows for expanded water volume after heating
• It stores excess cold water
• It traps air to prevent water hammer

Correct Answer: B) It allows for expanded water volume after heating

Question 10: What minimum separation is required between a residential septic

tank disposal field and a domestic service water line?

• 3 feet

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• 5 feet
• 10 feet
• 15 feet

Correct Answer: B) 5 feet

Question 11: Given: A water service pipe is to be installed in a trench with a sewer pipe. What minimum vertical distance is required between the bottom of the water service pipe and the top of the sewer pipe?

• 6 inches
• 12 inches
• 18 inches
• 24 inches

Correct Answer: B) 12 inches

Question 12: What is the name for the exterior drainage pipe that carries storm

water from roof drain systems?

• Conductor
• Leader
• Downspout
• Riser

Correct Answer: B) Leader

Question 13: What maximum percent of lead content is permitted in solder used

for a copper water pipe system?

A) 0.002 (.2%)

B) 0.005 (.5%)

C) 0.010 (1.0%)