ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: Fusible plugs must have what marked on them?

  • Melting temperature in F
  • Melting temperature in C
  • Opening pressure
  • All of the above

2: A Category D fluid

  • is when the fluid handled is non flammable, nontoxic, and not damaging to human as defined in ANSI/ASME Process Piping.
  • is when the design pressure does not exceed 150 psi
  • a fluid for service piping in which the potential for personnel exposure is judged to cause harm and irreversible damage to those persons exposed to it
  • Both a and b are correct

3: Industrial occupancy is

  • a premise or that portion of a premise that is not open to the public, where access by authorized persons is controlled, and that is used to manufacture, process, or store goods, such as chemicals, food, ice, meat, or petroleum.
  • is a premise or that portion of a premise where large number of people congregate and from which occupants cannot quickly vacate the space.
  • a premise or that portion of a premise where people transact business, receive personal service, or purchase food and other goods.
  • Both a and b are correct

4: What section governs pressure vessels?

  • Section 1 ASHREA 15 ASME fired
  • Section ASHREA 34
  • Section 8 ASHREA 15 ASME unfired
  • OSHA

5: A pressure relief should be located at least _______ from windows and doors.

  • 15'
  • 20'
  • 30'
  • 25'

6: Most CFC's are

  • inert but toxic
  • flammable
  • toxic
  • inert

7: According to the 522 CMR Board of Boilers, refrigerant detectors, alarms, and the refrigeration mechanical room ventilating systems shall be tested

  • quarterly
  • bi-annually
  • regularly
  • annually

8: Each machinery room shall contain

  • smoke and fire alarms as well as three means of egress and that egress must meet 528 CMR ventilation requirements
  • a toxicity detector where the presence of ammonia or lithium bromide from a leak will concentrate
  • a refrigerant detector located in an area where the refrigerant from a leak will concentrate
  • high and low pressure controls

9: Ammonia (NH3) is a group III refrigerant

  • True
  • False

10: Refrigerant restricted in 2004 but used for transition for decades:

  • R-22
  • R-11
  • R-134A
  • R-123

11: Which refrigerant was still able to be vented to the atmosphere after July 1, 1992?

  • R-11
  • R-113
  • R-12
  • R-22

12: What is the refrigerant chlorodifluoromethane?

  • R-12
  • R-22
  • R-134a
  • R-123

13: 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.
  • mercantile occupancy
  • commercial occupancy
  • business occupancy

14: Large Mercantile occupancy is a premise or that portion of a premise where more than ____ persons congregate on levels above or below the street level to purchase personal merchandise.

  • 250
  • 350
  • 100
  • 400

15: Refrigerants shall be classified by

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

16: Class 3 refrigerants are

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

17: How many different groups of refrigerants are there?

  • 15
  • 11
  • 7
  • 3

18: What type refrigerant is NOT ozone depleting?

  • HCFC
  • CFC
  • HFC
  • Halon

19: How far from the ground does a relief valve need to be?

  • Not more than 3' above grade
  • At least 25' above grade
  • At least 20' above grade
  • At least 15' above grade

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

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

21: Pressure vessels having an inside diameter of 6” or less shall be protected by

  • Pressure vessels having an inside diameter of 6” or less need no such protection unless otherwise specified
  • a fusible plug
  • either a fusible plug or a pressure relief device
  • a pressure relief device

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

  • A-1
  • B-1
  • B-2
  • A-2

23: Whoever owns/uses a refrigeration or air conditioning system covered by this code

  • must notify the Department of Public Safety prior to starting the system
  • shall be licensed by the Commonwealth of Massachusetts according to CMR 522
  • shall make application for inspections to the Chief of Inspectors
  • None of the above

24: 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

25: Pipe identification labels are required when the system contains more than

  • 55 lbs
  • 110 lbs
  • 65 lbs
  • 120 lbs