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                         Just for Fun Test 4

*This is a general knowledge test for different areas of the HVACR Field*

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Answer 1
Answer 2
Answer 3
Answer 4
Answer 5
Answer 6
Answer 7
Answer 8
Answer 9

1. At locations where regulators might be submerged during floods, a special anti-flood breather vent fitting shall be installed, or a vent shall be what?
A. Extended to the level of the water
B. Extended above the height of the expected flood waters
C. Left as a standard vent configuration

2.  The vent piping or stack on a pressure relieving device shall be at least what?
A. Larger size than the outlet
B. At least the same size as the outlet
C. Always 2 times as large
D. Always smaller

3. Each gas outlet, including a valve or cock outlet, shall be closed tight with what after installation or service?
A. PVC Cap
B. Solder
C. Treaded plug or cap
D. None of the above

4. Test pressure shall be measured with what?
A. Nothing
B. Refrigerant gages
C. Manometer
D. Manometer or with a pressure measuring device designed and calibrated to read, record, or indicate a pressure loss during the test pressure period

5. What should the test pressure be for systems that don't exceed 125 psi?
A. Shall not be less than 1 1/2 times the proposed working pressure, but not less than 3 psi, irrespective of the design pressure
B. Shall not be less than 2 1/2 times the proposed working pressure, but not less than 3 psi, irrespective of the design pressure
C. Shall not be less than 3 1/2 times the proposed working pressure, but not less than 3 psi, irrespective of the design pressure
D. Shall not be less than 4 1/2 times the proposed working pressure, but not less than 3 psi, irrespective of the design pressure

6. Whenever a chance to perform a leak check presents itself, what should the results be?
A. No gas leaks
B. Small minor leaks okay
C. Ensuring a safe system
D. None of the above

7. Any gas that is relieved by a gas pressure regulator must be what?
A. Vented at the device
B. Vented to the indoors
C. Never vented
D. Must be vented safely to the outdoors to prevent the accumulation of potentially dangerous concentrations of gas indoors

8. Typically what amount of air is required to burn 1 cubic foot of natural gas?
A. 20 cubic feet
B. 30 cubic feet
C. 40 cubic feet
D. 50 cubic feet

9. The 1/20th rule indicates for each cubic foot of room volume, you can install how many input units in Btu/h of heating equipment?
A. 10 Btu/h
B. 40 Btu/h
C. 20 Btu/h
D. 30 Btu/h

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