ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

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

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

2: Where a refrigeration or air conditioning system is installed,

  • it shall not be operated below prescribed pressuers
  • the form or certificate shall be authorized by the Department of Public Safety
  • The company who installed the system must notify the fire department in the jurisdiction where installed
  • A field inspection shall be made before it is put into service

3: How many flammability classifications are refrigerants in?

  • 7
  • 2
  • 5
  • 3

4: Pressure vessels with an internal volume of 3 cubic feet or more

  • shall use fusible plugs
  • shall use pressure relief devices or fusible plugs
  • shall use pressure relief devices
  • do not need pressure relief protection

5: What type of refrigerants are NOT flammable?

  • CHC
  • HFC
  • HCFC
  • All of the above

6: Who authorizes changes to the safety codes?

  • Contractor who last serviced the system.
  • Person who pulled the permit
  • Board of Boilers
  • Person in charge of the facility

7: A class B1 refrigerant is considered

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

8: Before determining if a machinery room equipment is excluded from following Ashrae 15, you must determine how many pounds of refrigerant per _____ cubic feet?

  • 1,000
  • 10,000
  • 100
  • 100,000

9: All serviceable components of a refrigeration system shall be provided with

  • safe access
  • manufactures instructions on start-up procedures
  • service manuals
  • name plates with markings referring to pressure and temperature in accordance with ASME Boiler and Pressure Vessel Code

10: A 3-cubic foot receiver must have what type of relief valve?

  • fusible plug
  • relief valve
  • rupture device
  • none of the above

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

  • True
  • False

12: The color code of a tank of ammonia is

  • lavender
  • white
  • light green
  • silver

13: 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

14: Name three things that must be done when changing refrigeration lubricant?

  • Nothing must be done
  • Make sure it's compatible, notify owner, notify AHJ
  • Place sign, check for leaks, insulate
  • You can't change lubricants.

15: A plug containing an alloy that will melt at a specific temperature to relief pressure is a

  • fusible plug
  • fusion plug
  • rupture plug
  • relief plug

16: Pressure relief valves shall be marked with the data from

  • Section VIII Division of the ASME Boiler & Pressure Code
  • Section IV Division of the ASME Boiler & Pressure Code
  • Section XIII Division of the ASME Boiler & Pressure Code
  • Section I Division VIII of ASME Boiler & Pressure Code

17: What is R-611’s ASHRAE Safety Code?

  • B2
  • B3
  • C3
  • A2

18: 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

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

  • Copper
  • Magnesium
  • Zinc
  • Aluminum

20: Refrigerant systems containing Group I refrigerants can be installed in or on public stairways.

  • True
  • False

21: What is a Category "D" fluid?

  • A typical refrigerant used on newer air conditioning and heat pump ssytems
  • A toxic fluid, which can produce serious irreversible harm to persons on breathing or bodily contact
  • A fluid which is nonflammable, nontoxic, not damaging to human tissues, does not exceed 150 psig, and design temperature is between -20F to 366F
  • Any fluid that exceeds 150 psig and has design temperature of over 366F

22: What refrigerant has zero ozone depletion

  • HFC
  • CFC
  • HCFC
  • None of the above

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

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

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

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

25: How many refrigerant classifications are there for flammability?

  • 7
  • 3
  • 2
  • 1