ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: What refrigerant doesn't have to be classified?

  • R-134A
  • R-718
  • R-717
  • R-422A

2: System design pressures must take into consideration, not only, pressures found during normal operation but also what?

  • When it's cold out
  • When there is a malfunction on the high side
  • When its warm out
  • All of the above

3: Halo-carbon refrigerants cannot be used with what material?

  • Aluminum
  • Magnesium alloy
  • Copper
  • Stainless Steel

4: When air is ducted through a machine room that services occupied space, What must be done?

  • Flanged and gasketed
  • Insulated and cross broke
  • Welded and seamed.
  • Ducted and sealed

5: What would be the classification of a prison?

  • Industrial
  • Institutional
  • Place of assembly
  • Large mercantile

6: R-22 is classified as a ____ refrigerant on the safety matrix.

  • B-1
  • A-2
  • A-1
  • B-2

7: Which refrigerant class listed below is the most flammable?

  • B-2
  • C-3
  • A-1
  • A-3

8: What does safe access mean?

  • OSHA approved
  • Locked doors
  • A clear unobstructed path to the equipment and controls
  • Well-lit exit signs

9: R-11 belongs to Group

  • A-1
  • B-1
  • A-2
  • B-3

10: The test pressure applied to the high side of each factory-assembled refrigerating system shall be at least equal to the design pressure of

  • the low side
  • 2.5 times the design pressure
  • the aggregate of the high side and low side
  • the high side

11: What is not a requirement of a Class T machine room?

  • Self-closing doors
  • Tight fitting doors
  • Automatic ventilation
  • Fire hose connected to the building fire protection system.

12: The certificate of inspection

  • shall be posted on the compressor shell or electrical panel at the unit
  • shall be $20 and an additional fee of $1 for each tone above 20 tons
  • shall be authorized by a notarized insurance company
  • shall be posted and protected from dirt, water, and other elements

13: Trichlorofluoromethane is the name of what refrigerant?

  • R-11
  • R-502
  • R-113
  • R-12

14: Liquid level gauge glasses shall have automatic closing shut off valves, except Bull's eye or reflex type.

  • True
  • False

15: When an inspection is needed, how often must it be done?

  • every 18 months
  • annually
  • every 36 months
  • every 24 months

16: Who authorizes changes to the safety codes?

  • Person who pulled the permit
  • Person in charge of the facility
  • Contractor who last serviced the system.
  • Board of Boilers

17: Direct systems using Group II refrigerants

  • shall be installed in Class T machinery rooms
  • shall not be used for air condition for human comfort
  • shall be installed per instruction of the AHJ
  • shall be allowed to be used for human comfort.

18: Pressure vessels nameplate markings must be compliant with the

  • ASHRAE 34 Standards
  • CMR-588 & CMR-528
  • ASME Boiler and Pressure Vessel Code
  • All of the Above

19: Ammonia (NH3) is a group III refrigerant

  • True
  • False

20: Machinery rooms must be vented to ______?

  • unoccupied spaces
  • outdoors
  • basement
  • neutralizing tank

21: What would be the classification of a church?

  • Institutional
  • Industrial
  • Large mercantile
  • Place of assembly

22: R-22 is considered a(n)

  • CFC
  • HCFC
  • HFC
  • HCFCH

23: Low temperature systems should have what?

  • High pour point
  • Low pour point
  • High viscosity
  • None of the above

24: No open flames are allowed in the machinery room unless?

  • Approved by the installing contractor
  • Never can be allowed
  • Approved by the authorized person
  • Only when combustion air is provided from outside of the machinery room

25: How much refrigerant can be stored in a mechanical room outside of the system?

  • 200
  • 100
  • 150
  • 330