ASHRAE/CMR code Prep Quiz

Topics: ASHRAE/CMR

Quiz Result Settings

1: Liquid level gauges must be provided with what?

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

2: Before you change the type of refrigerant in a refrigeration system, what three things must be done?

  • you can't change refrigerants
  • nothing must be done
  • place sign, check for leaks, insulate
  • make sure it's compatible, notify owner, notify A.H.J

3: What type refrigerant is NOT ozone depleting?

  • CFC
  • HCFC
  • HFC
  • Halon

4: Pressure vessels shall be provided with ___________in accordance with Section VIII of the ASME Boiler & Pressure Vessel Code

  • over pressure protection as well as a temperature protection device
  • over pressure protection
  • over pressure protection and a rupture disc
  • Pressure vessels need no type of protection as long as it is hydrostatically tested every three months

5: 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

6: Fusible plugs must have what marked on them?

  • Melting temperature in F
  • Melting temperature in C
  • Opening pressure
  • All of the above

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

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

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

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

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

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

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

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

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

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

12: R-718 is rated unlimited for refrigeration quantity contained in a system. Why?

  • Because it's cheap
  • Because it's a non-flammable refrigerant
  • R-718 is not rated unlimited because it's a dangerous refrigerant
  • Because it's water

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

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

14: A restaurant is classified as a

  • commercial occupancy
  • public assembly occupancy
  • large mercantile occupancy
  • mixed occupancy

15: When an inspection is needed, how often must it be done?

  • every 36 months
  • annually
  • every 18 months
  • every 24 months

16: 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

17: A Low-Probability System

  • 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 can not enter the occupied space
  • 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 the occupied space

18: What was the main reason for enacting the no venting rule of July 1, 1992?

  • Ozone depletion
  • Green house effect
  • Global warming potential
  • All of the above

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

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

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

  • 15
  • 20
  • 50
  • 75

21: Which refrigerant was still able to be vented to the atmosphere after July 1, 1992?

  • R-11
  • R-22
  • R-12
  • R-113

22: What type of relief valve is used on low pressure centrifugal compressor systems?

  • Spring-loaded relief valve
  • Rupture disc
  • Purge relief
  • None of the above

23: Most CFC's are

  • inert but toxic
  • toxic
  • flammable
  • inert

24: High pressure controls should be set no higher than

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

25: How far from the window does a relief valve need to be according to ASHRAE-15?

  • At least 20'
  • At least 30'
  • There is no minimum for relief valve and windows.
  • At least 40'