NYC RMO EXAM, CHAPTER 16
(Refrigeration Code) EXAM
REVIEW QUESTIONSWITH
CORRECT SOLUTIONS UPDATED
2025/2026 SYLLABUS ALREADY
GRADED!!100% GUARANTEED
PASS!!!<<BRAND NEW
VERSION>>
16.1.) The maximum permissible number of pounds of group 2 refrigerant for an
indirect system in a commercial building for a class T machine room is? -
ANSWER ✓ No limit
16.2.) The "safety code for mechanical refrigeration" calls for ducts on one or
more power driven exhaust fans, to remove gas from the refrigeration machinery
room. In an R-12 plant, the inlet to such ducts shall be located? - ANSWER ✓
Near the floor next to the refrigeration equipment
16.3.) According to the NYC Refrigeration Code; when withdrawing refrigerant
from a system, to what capacity shall the container used to hold the refrigerant be
filled? - ANSWER ✓ 80%
16.4.) Muntz metal, zinc or magnesium cannot be used in the presence of which of
the following refrigerants? - ANSWER ✓ R-40
16.5.) Which of the following correctly indicated the maximum permissible
quantity of R-12 that can be used in a direct system? Refrigerant quantity is to be
expressed in "lbs. per 1000 cubic feet of humanly occupied space". - ANSWER ✓
31
, 16.26.) An emergency situation has developed in the mechanical equipment room.
You are considering discharging the refrigerant into the sewer. You cannot do this
unless? - ANSWER ✓ The Fire Department/plant supervisor? oversees the
discharge (ask professor)
16. 7.) The maximum permissible quantity of refrigerant in a R-22 direct system
22 lbs. per 1000 cu. ft. of humanly occupied space. A particular R-22 system has
evaporator coils serving individual stories of a building. The amount of refrigerant
in the system will be determined by? - ANSWER ✓ The story having the smallest
volume
16.8.) Which of the following correctly indicates the maximum permissible
quantity of R-744 that can be used in a direct system? Refrigerant quantity is to be
expressed in "lbs. per 1000 cubic feet of humanly occupied space". - ANSWER ✓
11
16.9.) According to the ANSI/ASHRAE standard; when withdrawing refrigerant
from a system, to what capacity shall the container used to hold the refrigerant be
filled? - ANSWER ✓ 80%
16.10.) Standard soft anneal copper tubing used for refrigerant piping erected on
the premises shall not be used in sizes larger than? - ANSWER ✓ 7/8 of an inch
16.11.) According to the ASHRAE standard, which of the following describes
how the discharge of a pressure relief valve or fusible plug must be installed? -
ANSWER ✓ 15 feet above the ground level and not less than 20 feet from any
window, ventilation opening or exit in any building
16.12.) When a rupture member is used in parallel with a relief valve it shall
operate at which of the following pressures? - ANSWER ✓ Not to exceed 20%
above the design working pressure
16.13.) The dial of a pressure gauge installed on the high-side of a refrigeration
system shall be graduated to a minimum value of? - ANSWER ✓ 1.2 times the
design working pressure
16.14.) Which of the following could be referred to as a "pressure limiting
device"? - ANSWER ✓ High pressure cut-out
(Refrigeration Code) EXAM
REVIEW QUESTIONSWITH
CORRECT SOLUTIONS UPDATED
2025/2026 SYLLABUS ALREADY
GRADED!!100% GUARANTEED
PASS!!!<<BRAND NEW
VERSION>>
16.1.) The maximum permissible number of pounds of group 2 refrigerant for an
indirect system in a commercial building for a class T machine room is? -
ANSWER ✓ No limit
16.2.) The "safety code for mechanical refrigeration" calls for ducts on one or
more power driven exhaust fans, to remove gas from the refrigeration machinery
room. In an R-12 plant, the inlet to such ducts shall be located? - ANSWER ✓
Near the floor next to the refrigeration equipment
16.3.) According to the NYC Refrigeration Code; when withdrawing refrigerant
from a system, to what capacity shall the container used to hold the refrigerant be
filled? - ANSWER ✓ 80%
16.4.) Muntz metal, zinc or magnesium cannot be used in the presence of which of
the following refrigerants? - ANSWER ✓ R-40
16.5.) Which of the following correctly indicated the maximum permissible
quantity of R-12 that can be used in a direct system? Refrigerant quantity is to be
expressed in "lbs. per 1000 cubic feet of humanly occupied space". - ANSWER ✓
31
, 16.26.) An emergency situation has developed in the mechanical equipment room.
You are considering discharging the refrigerant into the sewer. You cannot do this
unless? - ANSWER ✓ The Fire Department/plant supervisor? oversees the
discharge (ask professor)
16. 7.) The maximum permissible quantity of refrigerant in a R-22 direct system
22 lbs. per 1000 cu. ft. of humanly occupied space. A particular R-22 system has
evaporator coils serving individual stories of a building. The amount of refrigerant
in the system will be determined by? - ANSWER ✓ The story having the smallest
volume
16.8.) Which of the following correctly indicates the maximum permissible
quantity of R-744 that can be used in a direct system? Refrigerant quantity is to be
expressed in "lbs. per 1000 cubic feet of humanly occupied space". - ANSWER ✓
11
16.9.) According to the ANSI/ASHRAE standard; when withdrawing refrigerant
from a system, to what capacity shall the container used to hold the refrigerant be
filled? - ANSWER ✓ 80%
16.10.) Standard soft anneal copper tubing used for refrigerant piping erected on
the premises shall not be used in sizes larger than? - ANSWER ✓ 7/8 of an inch
16.11.) According to the ASHRAE standard, which of the following describes
how the discharge of a pressure relief valve or fusible plug must be installed? -
ANSWER ✓ 15 feet above the ground level and not less than 20 feet from any
window, ventilation opening or exit in any building
16.12.) When a rupture member is used in parallel with a relief valve it shall
operate at which of the following pressures? - ANSWER ✓ Not to exceed 20%
above the design working pressure
16.13.) The dial of a pressure gauge installed on the high-side of a refrigeration
system shall be graduated to a minimum value of? - ANSWER ✓ 1.2 times the
design working pressure
16.14.) Which of the following could be referred to as a "pressure limiting
device"? - ANSWER ✓ High pressure cut-out
