Topics: ASHRAE/CMR
1: R-11 belongs to Group
- B-1
- B-3
- A-1
- A-2
2: What would be the classification of a church?
- Large mercantile
- Industrial
- Place of assembly
- Institutional
3: Refrigerant restricted in 2004 but used for transition for decades:
- R-123
- R-134A
- R-22
- R-11
4: Emergency shutdown procedures, including precautions to be observed in case of a breakdown or leak over 55 lbs of refrigerant charge, shall be displayed on a conspicuous card located as near as possible to the
- boiler
- outside the machinery room
- evaporator
- compressor
5: How many groups of refrigerants are there?
- 1
- 5
- 7
- 3
6: What section of ASHRAE-15 governs pressure vessels?
- OSHA
- Section 6 ASHRAE-34 ASME VIII unfired
- Section 9 ASHRAE-15 ASME VIII unfired
- Section 7 ASHRAE-15 ASME VIII fired
7: A High-Probability System
- is such that a leak of refrigerant from a failed connection will enter the occupied space
- is such that a leak of refrigerant from a failed connection will enter an unoccupied space
- 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
8: Refrigerant systems containing Group I refrigerants can be installed in or on public stairways.
- True
- False
9: 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
- the vapor side of the system
- high side of the system
- the liquid side of the system
10: The 522 CMR 9.00 has adopted for reference ASHRAE ____
- 10
- 15
- III
- 25
11: Relief valves are rated in
- gallons of water per hour
- pounds of air per hour
- gallons of water per minute
- pounds of air per minute
12: When an inspection is needed, how often must it be done?
- every 18 months
- annually
- every 24 months
- every 36 months
13: Low temperature systems should have what?
- High pour point
- Low pour point
- High viscosity
- None of the above
14: What refrigerant has zero ozone depletion
- HFC
- CFC
- HCFC
- None of the above
15: What do you need to do when you install a new system?
- Add refrigerant
- Have it inspected
- Document the superheat and subcooling reading
- Insulate the suction line before you take a superheat reading
16: How many gallons of water do you need per pound of ammonia?
- 1
- 100
- 50
- 10
17: High pressure controls should be set no higher than
- 90% of set point
- 10% of set point
- 25% of set point
- 80% of set point
18: R-410A is classified as a ____ refrigerant on the safety matrix.
- B-2
- A-2
- B-1
- A-1
19: An evaporator coil located near heating coil shall have a pressure-relief device installed within ______ inches of the evaporator.
- 48
- 36
- 24
- 18
20: Defined process piping by code CMR (528)
- Any piping that conveys a solid, liquid or gas that is not part of the plumbing or fire protection system
- Any piping in an industrial space
- Any piping in an industrial or commercial space
- All of the above
21: Group A1 refrigerants over ____ pounds in a system must discharge to the atmosphere
- 330
- 110
- 1,000
- 6.6
22: A professional or office building would be considered what type of occupancy?
- mercantile
- business
- commercial
- public assembly
23: How many flammability classifications are refrigerants in?
- 5
- 2
- 7
- 3
24: What is an example of institutional occupancy?
- Football stadium
- Hospital
- Shopping mall
- Dorms
25: The certificate of inspection
- shall be $20 and an additional fee of $1 for each tone above 20 tons
- shall be authorized by a notarized insurance company
- shall be posted on the compressor shell or electrical panel at the unit
- shall be posted and protected from dirt, water, and other elements