Topics: ASHRAE/CMR
1: Where a refrigeration or air conditioning system is installed,
- A field inspection shall be made before it is put into service
- it shall not be operated below prescribed pressuers
- The company who installed the system must notify the fire department in the jurisdiction where installed
- the form or certificate shall be authorized by the Department of Public Safety
2: What must be done if refrigeration lines pass through a concrete floor?
- installed through a pipe casing
- moisture barrier
- leak checked
- insulated
3: 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
4: Halo-carbon refrigerants cannot be used with what material?
- Aluminum
- Magnesium alloy
- Stainless Steel
- Copper
5: Large mercantile occupancy is
- 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
- 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.
6: A pressure vessel having an inside diameter of 6” or less shall be sufficient to withstand ____times the pressure of the saturation temperature of the refrigerant or ____times the critical pressure of the refrigerant, whichever is less.
- 6.6, 6.6
- 3.0, 3.5
- 2.5, 2.5
- 2.5, 3.0
7: When a refrigeration or air conditioning system is installed
- a field inspection shall be made before it is put into service
- it shall be approved by the owner for proper operation.
- the form of certificate shall be authorized by the Department of Pubic safety
- it shall not be operated below prescribed pressures
8: What type refrigerant is NOT ozone depleting?
- HCFC
- HFC
- Halon
- CFC
9: What is a Category "M" fluid?
- A fluid which is nonflammable, nontoxic, not damaging to human tissues, does not exceed 150 psig, and the designed temperature is between -20F to 366F
- Any fluid that exceeds 150 psig and has design temperatures over 366F
- A typical refrigerant used on newer air conditioning and heat pump systems
- A toxic fluid, which can produce serious irreversible harm to persons on breathing or bodily content
10: The main cause of enacting the "no vending rule" of July 1st 1992 was
- global warming potential
- ozone depletion
- both a & b
- None of the above
11: Refrigeration devices shall be equipped with a ____ to protect against unexpected pressure due to a malfunction or fire?
- Circuit Breaker
- Relief valve
- Temperature limiter device
- T&P device
12: How many refrigerant classifications are there for flammability?
- 1
- 7
- 3
- 2
13: Which occupancy can ammonia be used in?
- commercial
- depends on the quantity of freon
- redifential
- industrial
14: Indirect systems using Group II refrigerants
- shall be used in refrigeration system less than 1,000 lbs
- shall be used in refrigeration system in excess of 1,000 lbs
- shall be used for mechanical equipment only
- shall have all refrigerant containing parts except piping, installed in a Class T machine room
15: What happens after your initial inspection of a pressure vessel?
- Notify the Fire Marshal that the system has been inspected and approved
- Notify the AHJ to let them know that the system been inspected
- Inspector leaves a metal tag with a certification listed on it
- There is a temporary shut-down until a final inspection can be performed.
16: An evaporator coil located near heating coil shall have a pressure-relief device installed within ______ inches of the evaporator.
- 36
- 48
- 18
- 24
17: 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.
- “U” or “UM”
- “UV”
- “UM” and “UV”
- “UL”
18: A premise where large numbers of people congregate and from which occupants can not quickly vacate the space is considered
- mixed occupancy
- commercial occupancy
- public assembly occupancy
- institutional occupancy
19: Methyl Chloride is a halogenated refrigerant and should not come in contact with
- aluminum
- zinc
- magnesium
- all of the above
20: What is Trichlorotrifluoromethane?
- R-11
- R-12
- R-113
- R-13
21: What refrigerant doesn't have to be classifted?
- R-134a
- R-718
- R-711
- R-717
22: R-12. R-22, and R-40 are considered Group I refrigerants.
- True
- False
23: The color code of a tank of ammonia is
- light green
- white
- silver
- lavender
24: What would be the classification of a prison?
- Place of assembly
- Large mercantile
- Institutional
- Industrial
25: What would be the classification of a church?
- Place of assembly
- Large mercantile
- Institutional
- Industrial