RETA Industrial Refrigeration Book 3 Exam Newest
2025 Complete 200 Questions And Correct Answers
(Verified Answers) |Already Graded A+
Which of these statements are true about passivation in an evaporative
condenser? (pg. 4-18)
A) During passivation you should keep the pH as low as possible, preferably
between 1 and 2
B) You should keep the pH between 7 and 8 during passivation
C) You are only concerned about passivating the tubes in an evaporator
condenser
D) After a condenser has been properly passivated, you never have to worry
about white rust again
B) You should keep the pH between 7 and 8 during passivation
Which is NOT a cause of scale formation on the evaporative condenser tubes?
(pg. 4-18)
A) Improper water treatment
B) Plugged spray or partially plugged spray nozzles
C) Improper passivation of a new condenser
D) Not enough bleed water going down the drain
C) Improper passivation of a new condenser
The purpose of the eliminators in an evaporative condenser is? (pg. 4-21)
A) To eliminate the formation of scale on the tubes of the condenser
B) To prevent or eliminate the possibility of the water pumps cavitating due to
air entrainment
,C) To prevent the formation of white rust
D) To prevent water droplets from being blown from the condenser
D) To prevent water droplets from being blown from the condenser
The primary functional difference between a cooling tower and an evaporative
condenser is where the? (pg. 4-7)
A) Refrigerant condenses
B) Where the unit must be shut down
C) Water distribution system is located
D) Filtration stream will be collected
A) Refrigerant condenses
What are the two types of condenser designs for air flow? (pg. 4-23)
A) Forced draft and induced draft
B) Forced draft and up draft
C) Up draft and down draft
D) Centrifugal and axial
A) Forced draft and induced draft
Compressor efficiency increases when condensers? (pg. 4-6)
A) Use water on days with very high wet bulb
B) Lower discharge pressure
C) Are bottled up with liquid
D) Let the discharge pressure rise
B) Lower discharge pressure
One of the most common causes of poor condenser performance is? (pg. 4-
19,21)
A) Loose belt on the fans
B) Too much fans horsepower used
C) Scale on the condenser tube bundle
D) Too much water in the sump
C) Scale on the condenser tube bundle
,If you are having problems with the capacity of your condenser, you should
check? (pg. 4-22)
A) Wet bulb temperature of the inlet air compared to the surrounding area
B) The fit of the eliminators
C) Motor horsepower
D) For white rust buildup in the condenser
A) Wet bulb temperature of the inlet air compared to the surrounding area
To keep all condensers performing efficiently and safely, they require regular?
(pg. 4-9)
A) Inspections and maintenance
B) Pressure washing
C) Acid cleaning
D) Replacement
A) Inspections and maintenance
Rust that forms under scale _____________? (pg. 4-20)
A) Is insulated from moisture and air such that it ceases to develop
B) Can be removed with an acid treatment
C) Does not change the heat transfer capability of the condenser tube
D) Can lift the scale off the tubing by its expansion
D) Can lift the scale off the tubing by its expansion
A matched set of belts are? (pg. 4-23)
A) Likely to stretch the same amount when put in service
B) As effective as a banded set of belts
C) Sized identically
D) Adjusted 48 hours after installation
C) Sized identically
MAWP is ____________ ? (pg. 5-4)
A) The minimum pressure that a relief valve pressure setting can be
B) The system design pressure
, C) Mandated by code
D) The maximum pressure at a certain temperature that a vessel cannot operate
beyond
D) The maximum pressure at a certain temperature that a vessel cannot operate
beyond
Pressure relief valves can be ____________? (pg. 5-9)
A) Used in tandem with high level float switches
B) Set at the MAWP or less
C) Used ahead of same pressure rupture discs
D) Used in a series
B) Set at the MAWP or less
Rupture discs ____________? (pg. 5-11)
A) Can be re-used after they have relieved pressure
B) Burst at a specific pressure
C) Have greater flow capacity than a pressure relief valve
D) Are forbidden by code from being used in a conjunction with a PRV as it acts
like a closed hand valve ahead of the PRV
B) Burst at a specific pressure
U-1 forms are ____________? (pg. 5-6)
A) Required to be on file with the National Board for Unfired Pressure Vessels
for retrieval of specific information about the vessel
B) To be on display near the vessel it represents
C) Manufacture's data reports for the pressure vessel that lists the technical
specifications of a manufactured vessel
D) Sent to the manufacture's customer when the order for the vessel is placed
C) Manufacture's data reports for the pressure vessel that lists the technical
specifications of a manufactured vessel
How often must the insulation be removed for inspection from a vessel that
works at 20°F year round? (pg. 5-12)
2025 Complete 200 Questions And Correct Answers
(Verified Answers) |Already Graded A+
Which of these statements are true about passivation in an evaporative
condenser? (pg. 4-18)
A) During passivation you should keep the pH as low as possible, preferably
between 1 and 2
B) You should keep the pH between 7 and 8 during passivation
C) You are only concerned about passivating the tubes in an evaporator
condenser
D) After a condenser has been properly passivated, you never have to worry
about white rust again
B) You should keep the pH between 7 and 8 during passivation
Which is NOT a cause of scale formation on the evaporative condenser tubes?
(pg. 4-18)
A) Improper water treatment
B) Plugged spray or partially plugged spray nozzles
C) Improper passivation of a new condenser
D) Not enough bleed water going down the drain
C) Improper passivation of a new condenser
The purpose of the eliminators in an evaporative condenser is? (pg. 4-21)
A) To eliminate the formation of scale on the tubes of the condenser
B) To prevent or eliminate the possibility of the water pumps cavitating due to
air entrainment
,C) To prevent the formation of white rust
D) To prevent water droplets from being blown from the condenser
D) To prevent water droplets from being blown from the condenser
The primary functional difference between a cooling tower and an evaporative
condenser is where the? (pg. 4-7)
A) Refrigerant condenses
B) Where the unit must be shut down
C) Water distribution system is located
D) Filtration stream will be collected
A) Refrigerant condenses
What are the two types of condenser designs for air flow? (pg. 4-23)
A) Forced draft and induced draft
B) Forced draft and up draft
C) Up draft and down draft
D) Centrifugal and axial
A) Forced draft and induced draft
Compressor efficiency increases when condensers? (pg. 4-6)
A) Use water on days with very high wet bulb
B) Lower discharge pressure
C) Are bottled up with liquid
D) Let the discharge pressure rise
B) Lower discharge pressure
One of the most common causes of poor condenser performance is? (pg. 4-
19,21)
A) Loose belt on the fans
B) Too much fans horsepower used
C) Scale on the condenser tube bundle
D) Too much water in the sump
C) Scale on the condenser tube bundle
,If you are having problems with the capacity of your condenser, you should
check? (pg. 4-22)
A) Wet bulb temperature of the inlet air compared to the surrounding area
B) The fit of the eliminators
C) Motor horsepower
D) For white rust buildup in the condenser
A) Wet bulb temperature of the inlet air compared to the surrounding area
To keep all condensers performing efficiently and safely, they require regular?
(pg. 4-9)
A) Inspections and maintenance
B) Pressure washing
C) Acid cleaning
D) Replacement
A) Inspections and maintenance
Rust that forms under scale _____________? (pg. 4-20)
A) Is insulated from moisture and air such that it ceases to develop
B) Can be removed with an acid treatment
C) Does not change the heat transfer capability of the condenser tube
D) Can lift the scale off the tubing by its expansion
D) Can lift the scale off the tubing by its expansion
A matched set of belts are? (pg. 4-23)
A) Likely to stretch the same amount when put in service
B) As effective as a banded set of belts
C) Sized identically
D) Adjusted 48 hours after installation
C) Sized identically
MAWP is ____________ ? (pg. 5-4)
A) The minimum pressure that a relief valve pressure setting can be
B) The system design pressure
, C) Mandated by code
D) The maximum pressure at a certain temperature that a vessel cannot operate
beyond
D) The maximum pressure at a certain temperature that a vessel cannot operate
beyond
Pressure relief valves can be ____________? (pg. 5-9)
A) Used in tandem with high level float switches
B) Set at the MAWP or less
C) Used ahead of same pressure rupture discs
D) Used in a series
B) Set at the MAWP or less
Rupture discs ____________? (pg. 5-11)
A) Can be re-used after they have relieved pressure
B) Burst at a specific pressure
C) Have greater flow capacity than a pressure relief valve
D) Are forbidden by code from being used in a conjunction with a PRV as it acts
like a closed hand valve ahead of the PRV
B) Burst at a specific pressure
U-1 forms are ____________? (pg. 5-6)
A) Required to be on file with the National Board for Unfired Pressure Vessels
for retrieval of specific information about the vessel
B) To be on display near the vessel it represents
C) Manufacture's data reports for the pressure vessel that lists the technical
specifications of a manufactured vessel
D) Sent to the manufacture's customer when the order for the vessel is placed
C) Manufacture's data reports for the pressure vessel that lists the technical
specifications of a manufactured vessel
How often must the insulation be removed for inspection from a vessel that
works at 20°F year round? (pg. 5-12)
