MECHANICAL LAW EXAM MICHIGAN ACTUAL
PAPER 2026 QUESTIONS WITH SOLUTIONS
GRADED A+
◉ A1. Answer: According to ASHRAE refrigerant safety classification
standard which designation would be the safest ?
◉ Attach DOT classification tags. Answer: When transporting
cylinders containing used refrigerant, DOT requires that you ?
◉ CFC. Answer: What compound has the highest ozone depletion
potential (ODP) ?
◉ yellow tops and gray bodies. Answer: Approved refrigerant
recovery cylinders can be identified by which color code ?
◉ ARI 700. Answer: Under EPA's regulations, what standard must
reclaimed refrigerant meet before it can be resold ?
◉ a low pressure vapor.. Answer: The state of refrigerant entering
the compressor of a refrigeration system is ?
,◉ a condenser or, an evaporator. Answer: Replacement of
________________ is a repair which would always be considered major
under EPA's regulations.
◉ recycling.. Answer: Refrigerant that is cleaned using oil separation
and single or multiple passes through devices, such as replaceable
core filter-driers, which reduce moisture, acidity, and particulate
matter is ___________________.
◉ electronic leak detector. Answer: Which leak detection method is
most effective for locating the general area of the small leak ?
◉ PSIG and inches of mercury. Answer: A compound pressure gauge
for the low side of a system measures pressure in ?
◉ traces of oil. Answer: When first inspecting a hermetic system
known to be leaking you should first look for ?
◉ only charge with nitrogen vapor and use a regulator.. Answer:
When charging a system with nitrogen ______________.
◉ saturated or sub-cooled high-pressure liquid. Answer: Refrigerant
entering the Thermal Expansion Device of an R-22 heat pump is
___________.
, ◉ hydrochloric and hydrofluoric acid or, phosgene gas.. Answer: At
high temperatures R-12 and R-22 can decompose to form
_____________.
◉ oxygen deprivation. Answer: According to ASHRAE Standard 15 a
sensor and alarm are required for type A-1 refrigerants to sense
___________.
◉ sight glass. Answer: A __________ is not a method presently used for
checking the fill level in a recovery tank.
◉ number of cylinders of each gas. Answer: Dot regulations 49 CFR
requires that the ___________ be recorded on the shipping paper for a
hazard class 2.2 non flammable compressed gas.
◉ wearing a respirator. Answer: Which of the following is not a
standard recommended safe work practice when recovering
refrigerants ?
◉ the charge is more than 15 pounds. Answer: System dependent
recovery equipment cannot be used when ______________.
◉ processed so that it meets the standard for new refrigerant..
Answer: Reclamation of a refrigerant means that it is ______________.
PAPER 2026 QUESTIONS WITH SOLUTIONS
GRADED A+
◉ A1. Answer: According to ASHRAE refrigerant safety classification
standard which designation would be the safest ?
◉ Attach DOT classification tags. Answer: When transporting
cylinders containing used refrigerant, DOT requires that you ?
◉ CFC. Answer: What compound has the highest ozone depletion
potential (ODP) ?
◉ yellow tops and gray bodies. Answer: Approved refrigerant
recovery cylinders can be identified by which color code ?
◉ ARI 700. Answer: Under EPA's regulations, what standard must
reclaimed refrigerant meet before it can be resold ?
◉ a low pressure vapor.. Answer: The state of refrigerant entering
the compressor of a refrigeration system is ?
,◉ a condenser or, an evaporator. Answer: Replacement of
________________ is a repair which would always be considered major
under EPA's regulations.
◉ recycling.. Answer: Refrigerant that is cleaned using oil separation
and single or multiple passes through devices, such as replaceable
core filter-driers, which reduce moisture, acidity, and particulate
matter is ___________________.
◉ electronic leak detector. Answer: Which leak detection method is
most effective for locating the general area of the small leak ?
◉ PSIG and inches of mercury. Answer: A compound pressure gauge
for the low side of a system measures pressure in ?
◉ traces of oil. Answer: When first inspecting a hermetic system
known to be leaking you should first look for ?
◉ only charge with nitrogen vapor and use a regulator.. Answer:
When charging a system with nitrogen ______________.
◉ saturated or sub-cooled high-pressure liquid. Answer: Refrigerant
entering the Thermal Expansion Device of an R-22 heat pump is
___________.
, ◉ hydrochloric and hydrofluoric acid or, phosgene gas.. Answer: At
high temperatures R-12 and R-22 can decompose to form
_____________.
◉ oxygen deprivation. Answer: According to ASHRAE Standard 15 a
sensor and alarm are required for type A-1 refrigerants to sense
___________.
◉ sight glass. Answer: A __________ is not a method presently used for
checking the fill level in a recovery tank.
◉ number of cylinders of each gas. Answer: Dot regulations 49 CFR
requires that the ___________ be recorded on the shipping paper for a
hazard class 2.2 non flammable compressed gas.
◉ wearing a respirator. Answer: Which of the following is not a
standard recommended safe work practice when recovering
refrigerants ?
◉ the charge is more than 15 pounds. Answer: System dependent
recovery equipment cannot be used when ______________.
◉ processed so that it meets the standard for new refrigerant..
Answer: Reclamation of a refrigerant means that it is ______________.
