1|Page
RETA Industrial Refrigeration Book 2 Exam
2025 | Complete Questions and Correct
Answers | Already Graded A+ | Verified
Answers | Verified Answers
____________ are devices that convert a non-electrical physical
quantity into an electrical signal? (pg. 11-11)
A) Switches
B) Transducers
C) Conductors
D) Capacitors - . . ANSWER ✓✓ B) Transducers
_____________ are devices that convert a non-electrical physical
quantity into an electrical signal? (pg. 11-11)
A) Switches
B) Transducers
C) Conductors
D) Capacitors - . . ANSWER ✓✓ B) Transducers
A benefit of properly aligned shaft couplings of screw
compressors is? (pg. 2-27)
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A) Better motor cooling
B) Decreased bearing damage
C) Increased bhp/tr performance
D) Longer shaft seal life - . . ANSWER ✓✓ D) Longer shaft seal
life
A benefit of properly aligned shaft couplings of screw
compressors is? (pg. 2-27)
A) Better motor cooling
B) Decreased bearing damage
C) Increased bhp/TR performance
D) Longer shaft seal life - . . ANSWER ✓✓ D) Longer shaft seal
life
A column of 20 degree Fahrenheit liquid ammonia is 7.7 feet tall.
What is the approximate pressure increase at the base of the
column? (pg. 8-8)
A) 35 psi
B) 33 psi
C) 0 psi
D) 2 psi - . . ANSWER ✓✓ D) 2 psi
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A column of 20 degrees F saturated liquid ammonia is 7.7 feet
tall. What is the approximate pressure increase at the base of
the column? (pg. 8-8)
A) 35 psi
B) 33 psi
C) 0 psi
D) 2 psi - . . ANSWER ✓✓ D) 2 psi
A compressor's high-pressure cutout set point may NOT exceed
____________% of the associated pressure relief valve's set point?
(pg. 2-14)
A) 80
B) 90
C) 75
D) 95 - . . ANSWER ✓✓ B) 90
A gear drive's oil level should be at or near the middle of the oil
level sight glass, and should be maintained so that the oil level is
visible in the sight glass when the unit is? (pg. 12-16)
A) Offline
B) Running at full speed
C) Idle and the oil is at ambient temperature
D) Nearing maximum operating temperature - . . ANSWER ✓✓ C)
Idle and the oil is at ambient temperature
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A hot work permit is NOT required if ____________? (pg. 1-7)
A) There are no combustible materials where the work is being
performed
B) You have a person that is designated as a fire watch and have
a fire extinguisher ready
C) The owner of the property does not require the use of hot
work permit
D) You are not using a welder or cutting torches, only using a
grinder - . . ANSWER ✓✓ A) There are no combustible materials
where the work is being performed
A lubricant's internal resistance to flow at a given temperature in
relation to time is the fluid's? (pg. 3-10)
A) ISO grade
B) SAE grade
C) Viscosity
D) Pour point - . . ANSWER ✓✓ C) Viscosity
A lubricant's internal resistance to flow at a given temperature in
relation to time is the fluid's? (pg. 3-10)
A) ISO grade
B) SAE grade
C) Viscosity
RETA Industrial Refrigeration Book 2 Exam
2025 | Complete Questions and Correct
Answers | Already Graded A+ | Verified
Answers | Verified Answers
____________ are devices that convert a non-electrical physical
quantity into an electrical signal? (pg. 11-11)
A) Switches
B) Transducers
C) Conductors
D) Capacitors - . . ANSWER ✓✓ B) Transducers
_____________ are devices that convert a non-electrical physical
quantity into an electrical signal? (pg. 11-11)
A) Switches
B) Transducers
C) Conductors
D) Capacitors - . . ANSWER ✓✓ B) Transducers
A benefit of properly aligned shaft couplings of screw
compressors is? (pg. 2-27)
,2|Page
A) Better motor cooling
B) Decreased bearing damage
C) Increased bhp/tr performance
D) Longer shaft seal life - . . ANSWER ✓✓ D) Longer shaft seal
life
A benefit of properly aligned shaft couplings of screw
compressors is? (pg. 2-27)
A) Better motor cooling
B) Decreased bearing damage
C) Increased bhp/TR performance
D) Longer shaft seal life - . . ANSWER ✓✓ D) Longer shaft seal
life
A column of 20 degree Fahrenheit liquid ammonia is 7.7 feet tall.
What is the approximate pressure increase at the base of the
column? (pg. 8-8)
A) 35 psi
B) 33 psi
C) 0 psi
D) 2 psi - . . ANSWER ✓✓ D) 2 psi
,3|Page
A column of 20 degrees F saturated liquid ammonia is 7.7 feet
tall. What is the approximate pressure increase at the base of
the column? (pg. 8-8)
A) 35 psi
B) 33 psi
C) 0 psi
D) 2 psi - . . ANSWER ✓✓ D) 2 psi
A compressor's high-pressure cutout set point may NOT exceed
____________% of the associated pressure relief valve's set point?
(pg. 2-14)
A) 80
B) 90
C) 75
D) 95 - . . ANSWER ✓✓ B) 90
A gear drive's oil level should be at or near the middle of the oil
level sight glass, and should be maintained so that the oil level is
visible in the sight glass when the unit is? (pg. 12-16)
A) Offline
B) Running at full speed
C) Idle and the oil is at ambient temperature
D) Nearing maximum operating temperature - . . ANSWER ✓✓ C)
Idle and the oil is at ambient temperature
, 4|Page
A hot work permit is NOT required if ____________? (pg. 1-7)
A) There are no combustible materials where the work is being
performed
B) You have a person that is designated as a fire watch and have
a fire extinguisher ready
C) The owner of the property does not require the use of hot
work permit
D) You are not using a welder or cutting torches, only using a
grinder - . . ANSWER ✓✓ A) There are no combustible materials
where the work is being performed
A lubricant's internal resistance to flow at a given temperature in
relation to time is the fluid's? (pg. 3-10)
A) ISO grade
B) SAE grade
C) Viscosity
D) Pour point - . . ANSWER ✓✓ C) Viscosity
A lubricant's internal resistance to flow at a given temperature in
relation to time is the fluid's? (pg. 3-10)
A) ISO grade
B) SAE grade
C) Viscosity
