ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: Large vessels containing refrigerant ______________________ from using two or more pressure-relief devices in parallel to obtain the required capacity.

  • of Group B2 refrigerant shall be prohibited
  • shall be prohibited
  • containing R-11, R-123 & R-717 exclusively shall not be prohibited
  • shall not be prohibited

2: R-22 is considered a(n)

  • HFC
  • CFC
  • HCFC
  • HCFCH

3: Large mercantile occupancy is

  • a premise or that portion of a premise where more than 1500 persons congregate on levels above or below street level to purchase personal merchandise
  • a premise of that portion of a premise where more than 50 persons congregate on levels above of below street level to purchase personal merchandise.
  • a premise or that portion of a premise where more than 200 persons congregate on levels above or below street level to purchase personal merchandise
  • a premise of that portion of a premise where more than 100 persons congregate on levels above of below street level to purchase personal merchandise.

4: What type of copper is not permitted on refrigeration systems?

  • Type M
  • Type L
  • Type N
  • Type K

5: Name an HCFC refrigerant(s):

  • R-22
  • R-123
  • R-11
  • both a & b

6: R-123 belongs to Group

  • B-3
  • B-1
  • A-3
  • B-2

7: A total of all group A-2,B-2, A-3, and B-3 refrigerants shall not exceed ____ lb in the occupied areas and machinery rooms of institutional occupancies.

  • 550
  • 100
  • 350
  • 50

8: What is the minimum height refrigeration piping should be placed against walls?

  • 72"
  • 7.25'
  • Ceiling height
  • 6'

9: Fusible plugs shall not be used with pressure vessels of

  • 3 cubic feet or less
  • 15 square feet or less
  • 15 cubic feet or more
  • 3 cubic feet or more

10: Class A refrigerants are considered

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

11: There can be no airflow from an occupied space through a machine room unless what?

  • System is high velocity
  • System is ducted and sealed
  • Duct is not located in the ceiling
  • None of the above.

12: Group A1 refrigerants over ____ pounds in a system must discharge to the atmosphere

  • 330
  • 1,000
  • 110
  • 6.6

13: 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

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

  • 1000F
  • 600F
  • 700F
  • 800F

15: Insurance companies shall forward each inspection report of all refrigeration or A/C systems to the Chief of Inspections within

  • 2 months
  • 30 days
  • 1 week
  • 14 days

16: B3 refrigerants are considered

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

17: 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

18: A class A3 refrigerant is considered

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

19: What section governs pressure vessels?

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

20: A relief valve discharge capacity is rated in

  • temperature minus pounds of air per second divided by release rate squared
  • PSIG
  • PSIA
  • Pounds of air per minute.

21: Ammonia (NH3) is a group III refrigerant

  • True
  • False

22: How many different groups of refrigerants are there?

  • 11
  • 7
  • 15
  • 3

23: When is the only time you can leave a service container attached to a system?

  • Leaking system
  • Recovery
  • Charging
  • Both b and c

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

  • business
  • public assembly
  • mercantile
  • commercial

25: How many groups of refrigerants are there?

  • 1
  • 3
  • 7
  • 5