Topics: ASHRAE/CMR
1: What would be the classification of a prison?
- Large mercantile
- Institutional
- Industrial
- Place of assembly
2: What pipe can not be used for refrigeration?
- L
- M
- K
- N
3: The color code of a tank of ammonia is
- silver
- light green
- lavender
- white
4: Pressure vessels shall be provided with ___________in accordance with Section VIII of the ASME Boiler & Pressure Vessel Code
- Pressure vessels need no type of protection as long as it is hydrostatically tested every three months
- over pressure protection as well as a temperature protection device
- over pressure protection
- over pressure protection and a rupture disc
5: Pressure vessel having an inside diameter exceeding 6” with an internal pressure greater than 15psig shall be marked directly on or on the nameplate the letters _______________ signifying compliance with the ASME Boiler & Pressure Vessel Code.
- “UL”
- “UV”
- “U” or “UM”
- “UM” and “UV”
6: What refrigerant doesn't have to be classifted?
- R-711
- R-134a
- R-717
- R-718
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: A declaration test is needed when the system contains more than
- 65 lbs
- 120 lbs
- 55 lbs
- 110 lbs
9: A room having machinery but no flame producing apparatus permanently installed and operated is considered a
- Class B machinery room
- Class M machinery room
- Class A machinery room
- Class T machinery room
10: A total of all group A-2,B-2, A-3, and B-3 refrigerants shall not exceed ____ lb in the occupied areas and machinery rooms of institutional occupancies.
- 350
- 50
- 100
- 550
11: 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.
12: A High-Probability 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
- 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
13: What must be done to refrigerant pipes before being buried ?(8.10.4)
- Certified
- Leak checked
- Classifed
- Insulated and installed in a pipe duct (Encased)
14: Large mercantile occupancy is
- a premise of that portion of a premise where more than 50 persons congregate on levels above of below street level to purchase personal merchandise.
- a premise or that portion of a premise where more than 200 persons congregate on levels above or below street level to purchase personal merchandise
- a premise of that portion of a premise where more than 100 persons congregate on levels above of below street level to purchase personal merchandise.
- a premise or that portion of a premise where more than 1500 persons congregate on levels above or below street level to purchase personal merchandise
15: A positive displacement compressor is
- a compressor in which the increase in pressure is attained by changing the internal volume of the compression chamber
- a compressor in which the increase in pressure is attained by changing the internal pressure of the compression chamber
- is a reciprocating type compressor with 2 or more pistons
- where the compressor's suction pressure and the compressor;s discharge pressure is more than 50 PSI
16: What does safe access mean?
- OSHA approved
- A clear unobstructed path to the equipment and controls
- Locked doors
- Well-lit exit signs
17: What is Trichlorotrifluoromethane?
- R-11
- R-13
- R-113
- R-12
18: What would be the classification for Stop & Shop grocery store?
- Industrial
- Place of assembly
- Instituional
- Large mercantile
19: A High-Probablity system
- is such that a leak of refrigerant from failed connections will enter the unoccupied space
- is a system highly likely to leak from 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 failed connections will enter the occupied space
20: Trichlorofluoromethane is the name of what refrigerant?
- R-11
- R-113
- R-502
- R-12
21: Which refrigerant class listed below is the most flammable?
- C3
- A3
- B2
- A2
22: What type of copper is not permitted on refrigeration systems?
- Type N
- Type M
- Type K
- Type L
23: Pressure vessels with an internal volume of 3 cubic feet or less
- shall use fusible plugs
- shall use pressure relief devices or fusible plugs
- do not need pressure relief protection
- shall use pressure relief devices
24: What refrigerant were phased out in 2004?
- R-12
- R-11
- R-22
- R-134a
25: R-410A is classified as a ____ refrigerant on the safety matrix.
- B-1
- A-1
- B-2
- A-2