ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: Most CFC's are

  • toxic
  • inert
  • inert but toxic
  • flammable

2: 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

  • compressor
  • boiler
  • evaporator
  • outside the machinery room

3: What is an example of institutional occupancy?

  • Hospital
  • Football stadium
  • Dorms
  • Shopping mall

4: A declaration test is needed when the system contains more than

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

5: Refrigerant piping crossing an open space that affords passageway in any building shall not be less than _____ feet above the floor unless piping is located against the ceiling.

  • 7.25'
  • 8'4"
  • 9.00'
  • 7.00'

6: Defined process piping by code CMR (528)

  • Any piping that conveys a solid, liquid or gas that is not part of the plumbing or fire protection system
  • Any piping in an industrial space
  • Any piping in an industrial or commercial space
  • All of the above

7: Indirect systems using Group II refrigerants

  • shall be used for mechanical equipment only
  • shall be used in refrigeration system in excess of 1,000 lbs
  • shall have all refrigerant containing parts except piping, installed in a Class T machine room
  • shall be used in refrigeration system less than 1,000 lbs

8: Systems containing more than 110 pounds must have stop valves located at the

  • compressor suction inlet
  • compressor discharge outlet
  • receiver inlet and outlet
  • All of the above

9: The gauge thickness required on a CO2 tank construction is

  • 1/8"
  • 1/16"
  • 5/16"
  • 3/32"

10: A professional or office building would be considered what type of occupancy?

  • public assembly
  • business
  • mercantile
  • commercial

11: What type of refrigerants are NOT flammable?

  • CHC
  • HFC
  • HCFC
  • All of the above

12: 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

13: B3 refrigerants are considered

  • non-toxic but non-flammable
  • non-toxic but flammable
  • toxic and highly flammable
  • toxic but non-flammable

14: What section governs pressure vessels?

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

15: Liquid level gauges shall have _____________ with one exception being that of the liquid level gauge bull’s eye type.

  • color-coded glass to determine type of refrigerant
  • moisture indicators
  • automatic closing shut-off valves
  • All of the above

16: What type refrigerant is NOT ozone depleting?

  • HCFC
  • HFC
  • Halon
  • CFC

17: What is the refrigerant dichlorodifluoromethane?

  • R-22
  • R-134A
  • R-12
  • R-123

18: What is not a requirement of a class T machine room?

  • tight fitting doors
  • fire hose connection to the building fire protection system
  • automatic ventilation
  • self-closing doors

19: Class A refrigerants are considered

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

20: 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.

  • 350
  • 100
  • 400
  • 250

21: A High-Probability System

  • is a system highly likely to leak form a failed connection or component of such 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 will enter an unoccupied space
  • is such that any leak will cause injury or death to anyone within a 100 square foot area

22: 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

23: Ammonia (NH3) is a group III refrigerant

  • True
  • False

24: When a pressure gauge is permanently installed on a system, it must be ___ times the design pressure of the system.

  • 1
  • 1.5
  • 1.2
  • 2.2

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

  • A-2
  • B-2
  • A-1
  • B-1