1|Page
RETA INDUSTRIAL REFRIGERATION BOOK 3 EXAM LATEST 2025
ACTUAL EXAM WITH COMPLETE QUESTIONS AND CORRECT
DETAILED ANSWERS (100% VERIFIED ANSWERS) |ALREADY
GRADED A+| ||PROFESSOR VERIFIED|| ||BRANDNEW!!!||
Ultrasound thicknesses should be compared to thickness of
vessels listed on? (pg. 6-4)
A) The ASME plate
B) The shop drawings
C) The U1 forms
D) The manufacturer's catalog - ANSWER-C) The U1 forms
Insulation failure may cause ___________ to grow on the bottom
of the refrigeration piping? (pg. 6-5)
A) Blue slime
B) Algae
C) Spores
D) Red slime - ANSWER-B) Algae
Because of the importance of a good vapor barrier, insulation
repairs for non-destructive testing accesses should be made
promptly by? (pg. 6-13)
A) Insulation professionals
B) Maintenance personnel
C) Refrigeration operators
,2|Page
D) Plant supervisors - ANSWER-A) Insulation professionals
Moisture in the air? (pg. 6-5)
A) Will not get through the insulation
B) Will not harm the insulation only the steel pipe
C) Will not cause damage to the steel pipe
D) Will be attracted to the coldest part of the refrigeration system
because of vapor pressure difference - ANSWER-D) Will be
attracted to the coldest part of the refrigeration system because of
vapor pressure difference
The vapor retarder? (pg. 6-2)
A) Is the same as the jacket as long as it is sealed correctly
B) Is not that important to the insulation system because it is so
thin it does not stop heat transfer from happening
C) Needs to be installed on the warm side of the insulation
D) Needs to be applied against the pipe from one end to the other
- ANSWER-C) Needs to be installed on the warm side of the
insulation
At a minimum, insulation areas should be inspected? (pg. 6-6)
A) Every five years for the mechanical integrity audit
B) Monthly
,3|Page
C) Every day during the walk-through
D) Annually - ANSWER-D) Annually
Before any penetration is made into insulation, personnel need to
do some? (pg. 6-9)
A) Cutting
B) Careful planning
C) Scraping
D) Taping - ANSWER-B) Careful planning
Blackened aluminum jacketing in the vicinity of a valve group is a
sign of? (pg. 6-4)
A) Moisture intrusion
B) A cold spot
C) An ammonia leak
D) A hot spot - ANSWER-C) An ammonia leak
Penetrations made for inspections should be located? (pg. 6-11)
A) On the top half of the horizontal surface
B) On the bottom half of the horizontal surface
C) At 45 degree angle from the top of the horizontal surface
D) At a 90 degree angle from the top of the horizontal surface -
ANSWER-B) On the bottom half of the horizontal surface
, 4|Page
There is a significant difference in procedure and practice when
installing cold piping insulation compared to steam or high
temperature systems because? (pg. 6-15)
A) The securing practice for high temperature piping does not
require banding a jacket to the insulation
B) Exterior jacket choices are limited for high temperature
applications
C) The type of "cell construction" of high temperature insulation is
not important
D) The high temp system drives the water vapor away from the
pipe - ANSWER-D) The high temp system drives the water vapor
away from the pipe
Which of the following can results from untimely or ineffective
maintenance of a mechanical insulation system? (pg. 6-7)
A) Corrosion under insulation
B) Increased life span of the insulation system
C) Decreased maintenance costs
D) Decreased energy cost - ANSWER-A) Corrosion under
insulation
RETA INDUSTRIAL REFRIGERATION BOOK 3 EXAM LATEST 2025
ACTUAL EXAM WITH COMPLETE QUESTIONS AND CORRECT
DETAILED ANSWERS (100% VERIFIED ANSWERS) |ALREADY
GRADED A+| ||PROFESSOR VERIFIED|| ||BRANDNEW!!!||
Ultrasound thicknesses should be compared to thickness of
vessels listed on? (pg. 6-4)
A) The ASME plate
B) The shop drawings
C) The U1 forms
D) The manufacturer's catalog - ANSWER-C) The U1 forms
Insulation failure may cause ___________ to grow on the bottom
of the refrigeration piping? (pg. 6-5)
A) Blue slime
B) Algae
C) Spores
D) Red slime - ANSWER-B) Algae
Because of the importance of a good vapor barrier, insulation
repairs for non-destructive testing accesses should be made
promptly by? (pg. 6-13)
A) Insulation professionals
B) Maintenance personnel
C) Refrigeration operators
,2|Page
D) Plant supervisors - ANSWER-A) Insulation professionals
Moisture in the air? (pg. 6-5)
A) Will not get through the insulation
B) Will not harm the insulation only the steel pipe
C) Will not cause damage to the steel pipe
D) Will be attracted to the coldest part of the refrigeration system
because of vapor pressure difference - ANSWER-D) Will be
attracted to the coldest part of the refrigeration system because of
vapor pressure difference
The vapor retarder? (pg. 6-2)
A) Is the same as the jacket as long as it is sealed correctly
B) Is not that important to the insulation system because it is so
thin it does not stop heat transfer from happening
C) Needs to be installed on the warm side of the insulation
D) Needs to be applied against the pipe from one end to the other
- ANSWER-C) Needs to be installed on the warm side of the
insulation
At a minimum, insulation areas should be inspected? (pg. 6-6)
A) Every five years for the mechanical integrity audit
B) Monthly
,3|Page
C) Every day during the walk-through
D) Annually - ANSWER-D) Annually
Before any penetration is made into insulation, personnel need to
do some? (pg. 6-9)
A) Cutting
B) Careful planning
C) Scraping
D) Taping - ANSWER-B) Careful planning
Blackened aluminum jacketing in the vicinity of a valve group is a
sign of? (pg. 6-4)
A) Moisture intrusion
B) A cold spot
C) An ammonia leak
D) A hot spot - ANSWER-C) An ammonia leak
Penetrations made for inspections should be located? (pg. 6-11)
A) On the top half of the horizontal surface
B) On the bottom half of the horizontal surface
C) At 45 degree angle from the top of the horizontal surface
D) At a 90 degree angle from the top of the horizontal surface -
ANSWER-B) On the bottom half of the horizontal surface
, 4|Page
There is a significant difference in procedure and practice when
installing cold piping insulation compared to steam or high
temperature systems because? (pg. 6-15)
A) The securing practice for high temperature piping does not
require banding a jacket to the insulation
B) Exterior jacket choices are limited for high temperature
applications
C) The type of "cell construction" of high temperature insulation is
not important
D) The high temp system drives the water vapor away from the
pipe - ANSWER-D) The high temp system drives the water vapor
away from the pipe
Which of the following can results from untimely or ineffective
maintenance of a mechanical insulation system? (pg. 6-7)
A) Corrosion under insulation
B) Increased life span of the insulation system
C) Decreased maintenance costs
D) Decreased energy cost - ANSWER-A) Corrosion under
insulation
