ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: Dual-pressure relief devices should be installed on

  • vessels of 3 cubic feet or more
  • vessels of 3 cubic feet or less
  • vessels of 10 cubic feet or more
  • vessels of 10 cubic feet or less

2: All serviceable components of a refrigeration system shall be provided with

  • safe access
  • manufactures instructions on start-up procedures
  • service manuals
  • name plates with markings referring to pressure and temperature in accordance with ASME Boiler and Pressure Vessel Code

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

  • B-2
  • A-1
  • A-2
  • B-1

4: Ammonia is under what safety classification?

  • B1
  • B3
  • B2
  • A3

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

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

6: Class A refrigerants are considered

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

7: How many refrigerant classifications are there for toxicity?

  • 2
  • 3
  • 5
  • 1

8: Refrigerants shall be classified by

  • requirements for commercial, industrial, and residential occupancies
  • maximum permissible quantities of each group
  • toxicity and flammability
  • color codes

9: When systems are protected by a high pressure relief device, the compressor's pressure limiting device shall be set at or below ____ % of the operating pressure of the high side relief device.

  • 80
  • 100
  • 90
  • 110

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

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

11: Which refrigerant(s) is an HFC?

  • R-22
  • R-410A
  • R-502
  • All of the above

12: Pressure relief devices are marked with a ____________ signifying compliance with the ASME Boiler & Pressure Vessel Code.

  • UV or UR
  • UM or UL
  • UL and UR
  • UL and UM

13: Machinery rooms shall be vented to _____________ and utilizing mechanical ventilation.

  • the mechanical room housing the refrigeration system
  • the outdoors
  • Machinery rooms need not be vented
  • the return air ducted system

14: How many flammability classifications are refrigerants in?

  • 7
  • 2
  • 5
  • 3

15: Halogen refrigerants are corrosive to which type of metal?

  • stainless steel
  • copper
  • magnesium
  • black iron

16: Institutional occupancy is

  • a premise or that portion of a premise where large numbers of people congregate and from which occupants cannot quickly vacate the space.
  • a premise or that portion of a premise from which, because they are disabled, debilitated, or confined, occupants cannot readily leave without the assistance of others.
  • a premise or that portion of a premise where people transact business, receive personal service, or purchase food and other goods.
  • None of the above

17: When a refrigeration or air conditioning system is installed

  • the form of certificate shall be authorized by the Department of Pubic safety
  • it shall be approved by the owner for proper operation.
  • it shall not be operated below prescribed pressures
  • a field inspection shall be made before it is put into service

18: What refrigerant is an inorganic compound?

  • R-132A
  • Ammonia
  • R-22
  • R-410A

19: Direct systems using Group II refrigerants

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

20: Where a refrigeration or air conditioning system is installed,

  • The company who installed the system must notify the fire department in the jurisdiction where installed
  • A field inspection shall be made before it is put into service
  • the form or certificate shall be authorized by the Department of Public Safety
  • it shall not be operated below prescribed pressuers

21: 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

  • outside the machinery room
  • evaporator
  • compressor
  • boiler

22: A movie theater would be considered a

  • mixed occupancy
  • commercial occupancy
  • institutional occupancy
  • public assembly occupancy

23: Joints in piping for refrigeration containing parts must withstand temperatures of ___?

  • 800F
  • 700F
  • 600F
  • 1000F

24: What is an egress?

  • An entrance or exit
  • A valve put on the low side of the system to prevent frosting
  • An escape route
  • A code violation

25: A Low-Probability System

  • is such that a leak of refrigerant from a failed connection will enter the occupied space
  • is such that a leak of refrigerant from a failed connection can not enter the occupied space
  • is such that any leak will cause injury or death to anyone within a 100 square foot area
  • is a system highly likely to leak form a failed connection or component of such system