ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

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

  • Insulated
  • Leak tested
  • Inspected
  • Pressurized

2: 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

3: High pressure controls should be set no higher than

  • 10% of set point
  • 80% of set point
  • 90% of set point
  • 25% of set point

4: What refrigerant doesn't have to be classified?

  • R-422A
  • R-718
  • R-717
  • R-134A

5: How many different groups of refrigerants are there?

  • 11
  • 3
  • 15
  • 7

6: A High-Probability System

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

7: It shall be the duty of the person in charge of the premises on which a refrigeration system containing more than ___ lbs of refrigerant is installed to provide a schematic drawing or panel giving directions for the operation of the system.

  • 50
  • 55
  • 15
  • 75

8: A hotel is considered a _______ occupancy.

  • mercantile
  • residential
  • institutional
  • commercial

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

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

10: A pressure-limiting device isn't required on a factory-sealed system containing less than ____ lbs.

  • 50
  • 25
  • 66
  • 22

11: An evaporator coil located near heating coil shall have a pressure-relief device installed within ______ inches of the evaporator.

  • 24
  • 48
  • 18
  • 36

12: What kind of material can't be used on the outlet of a relief valve?

  • Copper
  • Aluminum
  • PVC
  • Stainless Steel

13: Ashrae states that the equipment on a building needs to conform to adjacent buildings classifications when within ____ feet from opening and intakes.

  • 20
  • 15
  • 50
  • 75

14: When a refrigeration or air conditioning system is installed

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

15: What type of pressure relief device is used on a CO2 system?

  • Rupture disk
  • Fusible plug
  • Gate valve
  • Glove valve

16: When must refrigeration system covered by the code be inspected?

  • Annually and when installed
  • Not required
  • Annually
  • Upon installation

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

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

18: What type of refrigerants are NOT flammable?

  • CHC
  • HFC
  • HCFC
  • All of the above

19: What type of relief valve is used on a CO2 system?

  • rupture disc
  • gate valve
  • fusible plug
  • glove disc

20: B3 refrigerants are considered

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

21: When liquid receivers are used, the liquid refrigerant shall not exceed _______percent of the volume at 90F.

  • 75%
  • 80%
  • 99%
  • 90%

22: Who approves containers for refrigerants?

  • D.O.E
  • E.P.A
  • D.O.T
  • D.O.D

23: A class B1 refrigerant is considered

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

24: Evaporators located ____inches of a heating coil shall be equipped whit a pressure relief device.

  • 18
  • 24
  • 15
  • 10

25: pressure relief valves must discharge to the atmosphere at a location not less than 15 feet from ground level and ____ feet from any window, ventilation opening, or exits of buildings.

  • 10
  • 15
  • 25
  • 20