ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: R-22 is considered a(n)

  • HFC
  • HCFC
  • CFC
  • HCFCH

2: A premise or that portion of a premise where people transact business, receive personal service, or purchase foods, other goods is considered a

  • public assembly occupancy.
  • business occupancy
  • commercial occupancy
  • mercantile occupancy

3: When a receiver is greater than 3 cubic feet but less than 10 cubic feed, what is the minimum relief device required?

  • fusible plug
  • relief valve
  • rupture disc
  • all of the above

4: All electrical work done on refrigeration systems must comply with

  • ASHREA-15 Section 9.2.1
  • Department of Energy
  • NEC and Massachusetts Modifications
  • OSHA

5: What does safe access mean?

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

6: A plug containing an alloy that will melt at a specific temperature to relief pressure is a

  • fusible plug
  • relief plug
  • fusion plug
  • rupture plug

7: Group A2 refrigerants have a ______ toxicity rating than Group B1 refrigerants.

  • higher
  • the same
  • lower
  • there is no Group B1 refrigerants

8: The certificate of inspection

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

9: When a refrigerating machinery room is used, the emergency procedures shall be posted

  • outside the room, immediately adjacent to each door
  • on a conspicuous card located near the evaporator
  • inside the room, immediately adjacent to each door
  • on a conspicuous card located near the compressor

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

  • True
  • False

11: Emergency shutdown procedures, including precautions to be observed in case of a breakdown or leak over 55 lbs of refrigerant charge, shall be displayed on a conspicuous card located as near as possible to the

  • evaporator
  • outside the machinery room
  • boiler
  • compressor

12: Field Inspections of refrigeration and A/C systems in Massachusetts shall be made by

  • District Engineering Inspectors
  • Commissioned Inspectors
  • Master licensed Technician
  • both a or b

13: Relief valves are rated in

  • pounds of air per hour
  • pounds of air per minute
  • gallons of water per hour
  • gallons of water per minute

14: When this is installed on the high side of a system, it must be capable of reading 1.2 times the design pressure (ASHRAE 15 9.11.3)

  • Pressure gauge
  • Temperature gauge
  • Sight glass gauge
  • All of the above

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

  • C3
  • B2
  • A2
  • A3

16: Class A refrigerants are considered

  • non-flammable
  • flammable
  • non-toxic
  • toxic

17: What would be the classification of a church?

  • Large mercantile
  • Place of assembly
  • Industrial
  • Institutional

18: The pressure relief device of a positive displacement compressor shall discharge in the ______________or in accordance with 9.7.8

  • low side of the system
  • the liquid side of the system
  • high side of the system
  • the vapor side of the system

19: The main cause of enacting the "no vending rule" of July 1st 1992 was

  • global warming potential
  • ozone depletion
  • both a & b
  • None of the above

20: The dial of a pressure gauge, when installed on the high side of a system be graduated 1.2 times the designed pressure.

  • True
  • False

21: Joints in refrigeration piping must be _____ before being covered?

  • Pressurized
  • Inspected
  • Leak tested
  • Insulated

22: How many refrigerant classifications are there for toxicity?

  • 5
  • 3
  • 1
  • 2

23: R-123 belongs to Group

  • A-3
  • B-3
  • B-2
  • B-1

24: The Board of Boilers adopts by reference

  • the MACS Pressure Vessel Code of Massachusetts
  • the 1997 ANSI/ASHRAE Safety Code
  • Montreal Protocol Safety Code
  • MSCA Code

25: How far from the window does a relief valve need to be according to ASHRAE-15?

  • There is no minimum for relief valve and windows.
  • At least 20'
  • At least 40'
  • At least 30'