NYC RMO EXAM, CHAPTER 16 (Refrigeration
Code) questions with verified answers
16.01.) With reference to specific minimum requirements for refrigerant pipe and
tubing, one of the following is most nearly correct? Ans✓✓-Standard I.P.S.
copper, brass pipe and tubing shall not be less than 80% copper (ask professor)
16.02.) How many stop valves are required by code in a system using 60 lbs. of
"group one" refrigerant, and having two compressors and two receivers? Ans✓✓-
Four (ask professor)
16.03.) Which of the following ASHRAE "designation and safety classification of
refrigerants" indicate the lowest level of flammability? Ans✓✓-B1
16.04.) A sign on the wall of a refrigerant plant contains pertinent information.
Which of the following can be omitted? Ans✓✓-Number of condensers
16.05.) Which of the following refers to a class "T" machine room? Ans✓✓-All
pipes must be sealed into the wall, ceiling, and floor (ask professor)
16.06.) A soldered joint is a gas tight joint obtained by the joining of metal parts
with metallic mixtures of alloys that melt at temperatures below? Ans✓✓-1000
degrees F and above 400 degrees F
16.07.) If a system contained 400 pounds of a group 2 refrigerant, the number of
required breathing service masks is? Ans✓✓-One
, 16.08.) According to the NYC code, all pipes passing overhead should be a
minimum of how many feet above the floor? Ans✓✓-7.5 feet
16.09.) The NYC code states that the maximum setting of a system's pressure
limiting device should be adjusted to a percentage of the relief valve setting or the
high-side working pressure. The percentage is? Ans✓✓-90%
16.10.) A refrigeration system contains 2000 pounds of refrigerant. The fan used
to exhaust the room in the event of a refrigerant leak should have a capacity of?
Ans✓✓-2900 cfm
16.11.) The charging valve of a 50 ton plant should be located? Ans✓✓-On the
low pressure side
16.12.) A refrigeration system contains 600 pounds of refrigerant. The fan used to
exhaust the room in the event of a refrigerant leak should have a capacity of?
Ans✓✓-1450
16.13.) A specification calls for the installation of a unit air conditioning system in
the lobby of a building. The unit contains 30 pounds of R-12. In keeping with the
code it can be said that? Ans✓✓-It may be installed
16.14.) Sweat joints in copper tubing used for a group 2 refrigerant shall be?
Ans✓✓-Brazed
16.15.) Which refrigeration component does the pressure limiting device control?
Ans✓✓-compressor (ask professor)
Code) questions with verified answers
16.01.) With reference to specific minimum requirements for refrigerant pipe and
tubing, one of the following is most nearly correct? Ans✓✓-Standard I.P.S.
copper, brass pipe and tubing shall not be less than 80% copper (ask professor)
16.02.) How many stop valves are required by code in a system using 60 lbs. of
"group one" refrigerant, and having two compressors and two receivers? Ans✓✓-
Four (ask professor)
16.03.) Which of the following ASHRAE "designation and safety classification of
refrigerants" indicate the lowest level of flammability? Ans✓✓-B1
16.04.) A sign on the wall of a refrigerant plant contains pertinent information.
Which of the following can be omitted? Ans✓✓-Number of condensers
16.05.) Which of the following refers to a class "T" machine room? Ans✓✓-All
pipes must be sealed into the wall, ceiling, and floor (ask professor)
16.06.) A soldered joint is a gas tight joint obtained by the joining of metal parts
with metallic mixtures of alloys that melt at temperatures below? Ans✓✓-1000
degrees F and above 400 degrees F
16.07.) If a system contained 400 pounds of a group 2 refrigerant, the number of
required breathing service masks is? Ans✓✓-One
, 16.08.) According to the NYC code, all pipes passing overhead should be a
minimum of how many feet above the floor? Ans✓✓-7.5 feet
16.09.) The NYC code states that the maximum setting of a system's pressure
limiting device should be adjusted to a percentage of the relief valve setting or the
high-side working pressure. The percentage is? Ans✓✓-90%
16.10.) A refrigeration system contains 2000 pounds of refrigerant. The fan used
to exhaust the room in the event of a refrigerant leak should have a capacity of?
Ans✓✓-2900 cfm
16.11.) The charging valve of a 50 ton plant should be located? Ans✓✓-On the
low pressure side
16.12.) A refrigeration system contains 600 pounds of refrigerant. The fan used to
exhaust the room in the event of a refrigerant leak should have a capacity of?
Ans✓✓-1450
16.13.) A specification calls for the installation of a unit air conditioning system in
the lobby of a building. The unit contains 30 pounds of R-12. In keeping with the
code it can be said that? Ans✓✓-It may be installed
16.14.) Sweat joints in copper tubing used for a group 2 refrigerant shall be?
Ans✓✓-Brazed
16.15.) Which refrigeration component does the pressure limiting device control?
Ans✓✓-compressor (ask professor)
