ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: What would be the classification of a prison?

  • Institutional
  • Large mercantile
  • Place of assembly
  • Industrial

2: 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.

3: How many CFMs are required per square foot of commercial office occupied space

  • .5 CFM
  • 5 CFM
  • 15 CFM
  • 20 CFM

4: High pressure controls should be set no higher than

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

5: Who is permitted to access a refrigeration machine room?

  • Any employee
  • Anyone, it's a completely safe area
  • Contractors only
  • Authorized persons only

6: 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

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

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

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

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

9: copper and its alloys shall not be used in contact with _____ except as a component of bronze alloys for bearing or other non-refrigerant containing uses.

  • HCFC-123
  • ammonia
  • Lithium bromide
  • CFC-11

10: Liquid level gauges must be provided with what?

  • A relief valve
  • A red line
  • Automatic shut-offs
  • A low level mark

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

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

12: Relief valves are rated in

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

13: The pressure relief device of a positive displacement compressor shall discharge in the ______________or in accordance with 9.7.8

  • low side of the system
  • high side of the system
  • the vapor side of the system
  • the liquid side of the system

14: What section of ASHRAE-15 governs pressure vessels?

  • Section 7 ASHRAE-15 ASME VIII fired
  • Section 6 ASHRAE-34 ASME VIII unfired
  • OSHA
  • Section 9 ASHRAE-15 ASME VIII unfired

15: 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

16: A premise where large numbers of people congregate and from which occupants can not quickly vacate the space is considered

  • public assembly occupancy
  • institutional occupancy
  • mixed occupancy
  • commercial occupancy

17: A High-Probability System

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

18: Trichlorofluoromethane is the name of what refrigerant?

  • R-502
  • R-113
  • R-12
  • R-11

19: NH3 is

  • lithium bromide
  • ammonia
  • R-508A
  • R-718

20: R-22 falls under which safety classification?

  • B-1
  • B-2
  • A-2
  • A-1

21: Where must a refrigeration contractor's license number be displayed?

  • Uniforms, checks, and invoices.
  • Trucks, invoices, and advertising
  • Truck, office, every job, and on all equipment
  • Trucks, license plates, and uniforms

22: Dual-pressure relief devices should be installed on

  • vessels of 10 cubic feet or more
  • vessels of 3 cubic feet or more
  • vessels of 3 cubic feet or less
  • vessels of 10 cubic feet or less

23: A machine room with a refrigerant system using ammonia shall

  • be provided with a continuously operated ventilation system
  • be considered a non-hazardous location in accordance with National Electrical code
  • have no flame producing apparatus permanently installed and operated
  • All of the above

24: Refrigeration devices shall be equipped with a ____ to protect against unexpected pressure due to a malfunction or fire?

  • Temperature limiter device
  • Relief valve
  • Circuit Breaker
  • T&P device

25: Pressure relief devices are marked with a ____________ signifying compliance with the ASME Boiler & Pressure Vessel Code.

  • UL and UR
  • UV or UR
  • UM or UL
  • UL and UM