Ammonia Refrigeration Exam 2025
Questions and Answers
Convection - ANSWER-The movement or circulation of a fluid or vapor at a
non-uniform temperature due to one part being hotter than another part.
Radiation - ANSWER-The project of heat like the heat radiated by the sin or by an
open flame.
Expansion,evaporation, compression, and condensation - ANSWER-Four basic
steps in the refrigeration cycle
Heat - ANSWER-is constantly on the move, traveling only in one direction and
always moving from hot to cold.
Conduction and convection - ANSWER-Methods of heat movement
Direct expansion and Gravity flooded - ANSWER-Two basic forms of
refrigeration systems
Conduction - ANSWER-method by which heat transfers through a substance
The ammonia flows through the condenser - ANSWER-Condensation occurs in
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
, expansion device, evaporator, compressor, condenser - ANSWER-Basic
refrigeration system consists of
Low side - ANSWER-consists of all components between the pressure reduction
device outlet to a point inside the compressor
refrigeration process - ANSWER-expansion, evaporation, compression,
condensation
Evaporation - ANSWER-takes place as the ammonia refrigerant flows through the
evaporator
king vavle - ANSWER-easily identifiable, usually located at the receiver
Psig +14.7 at sea level. - ANSWER-Find absolute pressure formula
Absolute,gauge,inches of mercury in a vacuum - ANSWER-Scales used to measure
pressure
can damage the compressor - ANSWER-Liquid ammonia that passes through the
compressor
pumped liquid single stage recirculation system - ANSWER-the cold liquid
ammonia that collects in the vessel is pumped to a metering device that regulates
the flow into the evaporator
produces a deliberate pressure drop - ANSWER-The pressure reduction device in
a pumped liquid re circulation system
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
Questions and Answers
Convection - ANSWER-The movement or circulation of a fluid or vapor at a
non-uniform temperature due to one part being hotter than another part.
Radiation - ANSWER-The project of heat like the heat radiated by the sin or by an
open flame.
Expansion,evaporation, compression, and condensation - ANSWER-Four basic
steps in the refrigeration cycle
Heat - ANSWER-is constantly on the move, traveling only in one direction and
always moving from hot to cold.
Conduction and convection - ANSWER-Methods of heat movement
Direct expansion and Gravity flooded - ANSWER-Two basic forms of
refrigeration systems
Conduction - ANSWER-method by which heat transfers through a substance
The ammonia flows through the condenser - ANSWER-Condensation occurs in
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
, expansion device, evaporator, compressor, condenser - ANSWER-Basic
refrigeration system consists of
Low side - ANSWER-consists of all components between the pressure reduction
device outlet to a point inside the compressor
refrigeration process - ANSWER-expansion, evaporation, compression,
condensation
Evaporation - ANSWER-takes place as the ammonia refrigerant flows through the
evaporator
king vavle - ANSWER-easily identifiable, usually located at the receiver
Psig +14.7 at sea level. - ANSWER-Find absolute pressure formula
Absolute,gauge,inches of mercury in a vacuum - ANSWER-Scales used to measure
pressure
can damage the compressor - ANSWER-Liquid ammonia that passes through the
compressor
pumped liquid single stage recirculation system - ANSWER-the cold liquid
ammonia that collects in the vessel is pumped to a metering device that regulates
the flow into the evaporator
produces a deliberate pressure drop - ANSWER-The pressure reduction device in
a pumped liquid re circulation system
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
