ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: 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

2: What happens after your initial inspection of a pressure vessel?

  • Inspector leaves a metal tag with a certification listed on it
  • Notify the AHJ to let them know that the system been inspected
  • Notify the Fire Marshal that the system has been inspected and approved
  • There is a temporary shut-down until a final inspection can be performed.

3: The test pressure applied to the high side of each factory-assembled refrigerating system shall be at least equal to the design pressure of

  • the aggregate of the high side and low side
  • 2.5 times the design pressure
  • the high side
  • the low side

4: 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

5: Refrigeration piping before being buried shall be

  • leak tested
  • encased in pipe duct
  • pressure tested
  • All of the above

6: Where are the three places that the discharge from an ammonia relief valve be piped?

  • atmosphere, tank containing water, where the A.H.J. indicates
  • underground, into drain, into mechanical room
  • to chemical neutralizing tank only
  • none of the above

7: When testing systems using non-positive displacement compressors, the entire system shall be considered for test purposes as the low side.

  • True
  • False

8: What must be done to refrigerant pipes before being buried?

  • Leaked checked
  • Certified
  • Coated
  • Encased

9: When a refrigeration or air conditioning system is installed

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

10: _____ and its alloys are suitable for use with ammonia systems.

  • Zinc
  • Aluminum
  • Copper
  • Magnesium

11: An example of direct system is

  • rooftop unit
  • chiller
  • absorber
  • none of the above

12: Relief valves are rated in

  • gallons of water per minute
  • gallons of water per hour
  • pounds of air per hour
  • pounds of air per minute

13: What is an egress?

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

14: A factory-sealed system containing less than 22lbs. of Group A1 refrigerant

  • does not require a pressure-limiting device
  • shall have a pressure limiting device installed on the high side of the system
  • shall have a pressure limiting device and a pressure relief valve installed
  • shall be inspected by the Boiler of Inspectors bi-annually

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

  • Leak tested
  • Pressurized
  • Inspected
  • Insulated

16: What should not (and can not) be located between a pressure imposing device and a pressure-limiting device?

  • Foot valve
  • Stop valve
  • Muffler
  • Moisture indicator

17: The ASHRAE Standard 34 requires what type of alarm for equipment rooms using HCFC-123?

  • refrigerant sensing
  • A group sensing
  • phosgene gas sening
  • CO Sensing

18: 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

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

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

20: High pressure controls should be set no higher than

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

21: No open flames are allowed in the machinery room unless?

  • Approved by the authorized person
  • Approved by the installing contractor
  • Only when combustion air is provided from outside of the machinery room
  • Never can be allowed

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

  • 15'
  • 30'
  • 20'
  • 25'

23: Which refrigerant class listed below is the most flammable?

  • B2
  • A3
  • C3
  • A2

24: 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.

25: The Board of Boilers adopts by reference

  • MSCA Code
  • the MACS Pressure Vessel Code of Massachusetts
  • Montreal Protocol Safety Code
  • the 1997 ANSI/ASHRAE Safety Code