RETA Book 1 Study Guide with all Correct & 100% Verified
Answers |Actual Complete Exam |Already Graded A+
What is the purpose of an SOP?
A. to break down the amount of work to be done in a given time.
B. to read after the job is done.
C. to provide guidance and specific steps necessary to safely operate the system.
D. to provide a standard way to preform the job faster. ✔Correct Answer-C. to provide
guidance and specific steps necessary to safely operate the system.
Where can a list of the proper PPE needed to safely preform a job task?
A. SOPs and MPs
B. Safety data sheet
C. risk management plan
D.Hazardous material business plan ✔Correct Answer-A. SOPs and MPs
Which of the following requires hot work permits?
A. The local fire department
B. OSHA regulations
C. The HR department
D. EPA regulations ✔Correct Answer-B. OSHA regulations
What can be caused by trapped liquid?
A. a possible release
B. Excess refrigerant flow
C. The system to pump down
D. A safe condition for isolated components ✔Correct Answer-A. A possible release
How much can the pressure of trapped liquid increase per degree Fahrenheit of temperature
increase
A. Between 50 and 100 psi
B. Between 100 and 150 psi
C. Between 180 and 190 psi
D. Between 200 and 300 Psi ✔Correct Answer-B. Between 100 and 150 psi
When working on an ammonia refrigeration system, which of the following has the
responsibility to use the proper PPE?
A. As mandated by EPA regulations
B. The owner of the facility
C. The HR department
D. The technician or operator ✔Correct Answer-D. The technician or operator
,OSHA regulations require persons wearing respiratory protective equipment to have_____
A. no mustache
B. rubber boats and gloves
C. a medical evaluation to confirm fitness to wear the PPE.
D. side shielded safety glasses ✔Correct Answer-C. a medical evaluation to confirm fitness to
wear the PPE.
Lockout/Tagout required___
A. when work is done inside the building
B. only when moving parts can cut off body parts or smash fingers
C. anytime work exposes an employee to hazardous energy
D. when work is done on the roof ✔Correct Answer-C. anytime work exposes an employee to
hazardous energy
Which of the following is responsible to determine if an area is considered confined space?
A. the owner/employer
B. the employee that is going to be working in the area
C. the supervisor
D. OSHA ✔Correct Answer-A. the owner/employer
Fire watchers mist be trained in___
A. recognizing potential combustible material locations at the facility.
B. The use of fire extinguishing equipment
C. CPR
D. confined space entry requirements ✔Correct Answer-B. The use of fire extinguishing
equipment
The reason for testing the application of a lockout device is to___
A. show your manager the LOTO procedure
B. ensure that your multi-meter is working correctly
C. conform tot he OSHA regulations for electrical gear.
D. confirm that the energy source has indeed been made safe. ✔Correct Answer-D. confirm
that the energy source has indeed been made safe.
During an arc flash event, hat is the conductor?
A. hard rather than soft rubber shoe soles
B. The disconnect handle
C. The water in a hose that is too close
D. The air ✔Correct Answer-D. The air
As an ask flash fault continues, the arc explosion expansion is estimated to be how large?
A. 40,000 to 1
B. relatively small compared to mot explosions
C. about the same size as a typical ammonia explosion
,D. 10 atmospheres ✔Correct Answer-A. 40,000 to 1
What is the purpose of a refrigeration system?
a. To freeze food
b. To cool buildings
c. To preserve food
d. To maintain a temperature ✔Correct Answer-D. To maintain a temperaure
Operators must keep refrigeration systems operating safely and term-69efficiently. Which of the
following best describes the areas of required knowledge for this to be possible?
a. Basic physical principles, interpretation of information from temperature and pressure
gauges, basic operating principles.
b. Basic physical principles, interpretation of information from temperature and pressure
gauges, manufacturer of the equipment
c. Interpretation of information from temperature and pressure gauges, basic operating
principles, company quality control policies and procedures.
d. Interpretation of information from temperature and pressure gauges, manufacturer of the
equipment, company quality control policies and procedures. ✔Correct Answer-a. Basic
physical principles, interpretation of information from temperature and pressure gauges, basic
operating principles.
Mechanical refrigeration is a series of steps that
a. moves heat energy from a space or object to an area where it can do no harm.
b. adds cold to a space or object.
c. transforms heat energy into cold energy to reduce the temperature of the area to be cooled.
d. utilizes the cooling effect of compressing a gas to reduce the temperature in a space or
object. ✔Correct Answer-a. moves heat energy from a space or object to an area where it can
do no harm.
Heat energy always flows
a. from a substance with more heat energy to a substance with less
heat energy.
b. regardless of temperature.
c. from an object at a higher temperature to an object at a lower temperature.
d. from a liquid to a vapor. ✔Correct Answer-c. from an object at a higher temperature to an
object at a lower temperature.
Sensible heat
a. is measured using a pressure gauge.
b. is always between 32 and 212 degrees Fahrenheit.
c. is heat energy that causes a change of state but does not cause a change in temperature.
d. is heat energy that causes a change in temperature but does not cause a change of state.
✔Correct Answer-d. is heat energy that causes a change in temperature but does not cause a
change of state
, Latent heat
a. is measured using a pressure gauge.
b. can be sensed by using a thermometer.
c. is heat energy that causes a change of state but does not cause a change in temperature.
d. is heat energy that causes a change in temperature but does not cause a change of state.
✔Correct Answer-c. is heat energy that causes a change of state but does not cause a change in
temperature.
Which of the answers below is an example of heat transfer by convection?
a. The sun's rays hitting a roof.
b. A rod that is heated on one end resulting in a temperature change at the other end.
c. Warm air rising and cold air falling.
d. Heat transferred to a pan setting on an electric hot plate. ✔Correct Answer-c. Warm air
rising and cold air falling.
How does the refrigeration technician/operator know what the conditions are within a
refrigeration system?
a. By using his knowledge of system basic operating principles to evaluate temperature and
pressure readings.
b. By observing the alarm annunciator panel, if no alarms are displayed the system is operating
efficiently and correctly.
c. By keeping the discharge and suction pressures within specification the operator assures
proper system operation.
d. By observing product temperature, if the product is at temperature the system is operating
properly. ✔Correct Answer-a. By using his knowledge of system basic operating principles to
evaluate temperature and pressure readings
What is the scale used to measure Fahrenheit temperature absolute?
a. Extreme
b. Rankine
c. Celsius
d. Kelvin ✔Correct Answer-b. Rankine
Which of the following is used to measure the quantity of heat energy?
a. British Thermal Units (BTUs) or calories
b. Pascals and Kilopascals
c. Degrees Kelvin
d. Degrees Celsius or Fahrenheit ✔Correct Answer-a. British Thermal Units (BTUs) or calories
When calculating the BTUs that have to be removed to change the temperature of a substance,
what combination of the following is used?
a. Pounds of substance, sensible heat, temperature.
b. Pounds of substance, temperature difference, specific heat.
Answers |Actual Complete Exam |Already Graded A+
What is the purpose of an SOP?
A. to break down the amount of work to be done in a given time.
B. to read after the job is done.
C. to provide guidance and specific steps necessary to safely operate the system.
D. to provide a standard way to preform the job faster. ✔Correct Answer-C. to provide
guidance and specific steps necessary to safely operate the system.
Where can a list of the proper PPE needed to safely preform a job task?
A. SOPs and MPs
B. Safety data sheet
C. risk management plan
D.Hazardous material business plan ✔Correct Answer-A. SOPs and MPs
Which of the following requires hot work permits?
A. The local fire department
B. OSHA regulations
C. The HR department
D. EPA regulations ✔Correct Answer-B. OSHA regulations
What can be caused by trapped liquid?
A. a possible release
B. Excess refrigerant flow
C. The system to pump down
D. A safe condition for isolated components ✔Correct Answer-A. A possible release
How much can the pressure of trapped liquid increase per degree Fahrenheit of temperature
increase
A. Between 50 and 100 psi
B. Between 100 and 150 psi
C. Between 180 and 190 psi
D. Between 200 and 300 Psi ✔Correct Answer-B. Between 100 and 150 psi
When working on an ammonia refrigeration system, which of the following has the
responsibility to use the proper PPE?
A. As mandated by EPA regulations
B. The owner of the facility
C. The HR department
D. The technician or operator ✔Correct Answer-D. The technician or operator
,OSHA regulations require persons wearing respiratory protective equipment to have_____
A. no mustache
B. rubber boats and gloves
C. a medical evaluation to confirm fitness to wear the PPE.
D. side shielded safety glasses ✔Correct Answer-C. a medical evaluation to confirm fitness to
wear the PPE.
Lockout/Tagout required___
A. when work is done inside the building
B. only when moving parts can cut off body parts or smash fingers
C. anytime work exposes an employee to hazardous energy
D. when work is done on the roof ✔Correct Answer-C. anytime work exposes an employee to
hazardous energy
Which of the following is responsible to determine if an area is considered confined space?
A. the owner/employer
B. the employee that is going to be working in the area
C. the supervisor
D. OSHA ✔Correct Answer-A. the owner/employer
Fire watchers mist be trained in___
A. recognizing potential combustible material locations at the facility.
B. The use of fire extinguishing equipment
C. CPR
D. confined space entry requirements ✔Correct Answer-B. The use of fire extinguishing
equipment
The reason for testing the application of a lockout device is to___
A. show your manager the LOTO procedure
B. ensure that your multi-meter is working correctly
C. conform tot he OSHA regulations for electrical gear.
D. confirm that the energy source has indeed been made safe. ✔Correct Answer-D. confirm
that the energy source has indeed been made safe.
During an arc flash event, hat is the conductor?
A. hard rather than soft rubber shoe soles
B. The disconnect handle
C. The water in a hose that is too close
D. The air ✔Correct Answer-D. The air
As an ask flash fault continues, the arc explosion expansion is estimated to be how large?
A. 40,000 to 1
B. relatively small compared to mot explosions
C. about the same size as a typical ammonia explosion
,D. 10 atmospheres ✔Correct Answer-A. 40,000 to 1
What is the purpose of a refrigeration system?
a. To freeze food
b. To cool buildings
c. To preserve food
d. To maintain a temperature ✔Correct Answer-D. To maintain a temperaure
Operators must keep refrigeration systems operating safely and term-69efficiently. Which of the
following best describes the areas of required knowledge for this to be possible?
a. Basic physical principles, interpretation of information from temperature and pressure
gauges, basic operating principles.
b. Basic physical principles, interpretation of information from temperature and pressure
gauges, manufacturer of the equipment
c. Interpretation of information from temperature and pressure gauges, basic operating
principles, company quality control policies and procedures.
d. Interpretation of information from temperature and pressure gauges, manufacturer of the
equipment, company quality control policies and procedures. ✔Correct Answer-a. Basic
physical principles, interpretation of information from temperature and pressure gauges, basic
operating principles.
Mechanical refrigeration is a series of steps that
a. moves heat energy from a space or object to an area where it can do no harm.
b. adds cold to a space or object.
c. transforms heat energy into cold energy to reduce the temperature of the area to be cooled.
d. utilizes the cooling effect of compressing a gas to reduce the temperature in a space or
object. ✔Correct Answer-a. moves heat energy from a space or object to an area where it can
do no harm.
Heat energy always flows
a. from a substance with more heat energy to a substance with less
heat energy.
b. regardless of temperature.
c. from an object at a higher temperature to an object at a lower temperature.
d. from a liquid to a vapor. ✔Correct Answer-c. from an object at a higher temperature to an
object at a lower temperature.
Sensible heat
a. is measured using a pressure gauge.
b. is always between 32 and 212 degrees Fahrenheit.
c. is heat energy that causes a change of state but does not cause a change in temperature.
d. is heat energy that causes a change in temperature but does not cause a change of state.
✔Correct Answer-d. is heat energy that causes a change in temperature but does not cause a
change of state
, Latent heat
a. is measured using a pressure gauge.
b. can be sensed by using a thermometer.
c. is heat energy that causes a change of state but does not cause a change in temperature.
d. is heat energy that causes a change in temperature but does not cause a change of state.
✔Correct Answer-c. is heat energy that causes a change of state but does not cause a change in
temperature.
Which of the answers below is an example of heat transfer by convection?
a. The sun's rays hitting a roof.
b. A rod that is heated on one end resulting in a temperature change at the other end.
c. Warm air rising and cold air falling.
d. Heat transferred to a pan setting on an electric hot plate. ✔Correct Answer-c. Warm air
rising and cold air falling.
How does the refrigeration technician/operator know what the conditions are within a
refrigeration system?
a. By using his knowledge of system basic operating principles to evaluate temperature and
pressure readings.
b. By observing the alarm annunciator panel, if no alarms are displayed the system is operating
efficiently and correctly.
c. By keeping the discharge and suction pressures within specification the operator assures
proper system operation.
d. By observing product temperature, if the product is at temperature the system is operating
properly. ✔Correct Answer-a. By using his knowledge of system basic operating principles to
evaluate temperature and pressure readings
What is the scale used to measure Fahrenheit temperature absolute?
a. Extreme
b. Rankine
c. Celsius
d. Kelvin ✔Correct Answer-b. Rankine
Which of the following is used to measure the quantity of heat energy?
a. British Thermal Units (BTUs) or calories
b. Pascals and Kilopascals
c. Degrees Kelvin
d. Degrees Celsius or Fahrenheit ✔Correct Answer-a. British Thermal Units (BTUs) or calories
When calculating the BTUs that have to be removed to change the temperature of a substance,
what combination of the following is used?
a. Pounds of substance, sensible heat, temperature.
b. Pounds of substance, temperature difference, specific heat.
