Refrigeration Control Circuits Quiz Pt1
Authored by Andgel Thomas
Physics
12th Grade
Used 6+ times
AI Actions
Add similar questions
Adjust reading levels
Convert to real-world scenario
Translate activity
More...
Content View
Student View
19 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of a thermostat in a refrigeration system?
To control the flow of refrigerant in the system
To prevent the compressor from starting too soon after shutting off
To maintain stable temperature conditions in a space
To regulate the flow of electricity in the control circuit
Answer explanation
The purpose of a thermostat in a refrigeration system is to maintain stable temperature conditions in a space.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of thermostat uses mechanical gear to operate a switch for starting or stopping cooling equipment?
Electromechanical thermostat
Thermo disk thermostat
Constant cut in thermostat
Electronic thermostat
Answer explanation
The correct answer is the Electromechanical thermostat, which uses mechanical gear to operate a switch for starting or stopping cooling equipment.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the controller differential in a thermostat?
To minimize the overshoot and undershoot of temperature variations
To maintain the space temperature at an acceptable value
To initiate a corrective action when the control point is above the setpoint
To prevent the compressor from starting too soon after shutting off
Answer explanation
The purpose of the controller differential in a thermostat is to minimize the overshoot and undershoot of temperature variations.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of thermostat uses semiconductors to change their resistance?
Electronic thermostat
Thermo disk thermostat
Electromechanical thermostat
Constant cut in thermostat
Answer explanation
The correct type of thermostat that uses semiconductors to change their resistance is the electronic thermostat.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the function of a pressure control in HVAC/R?
To maintain stable temperature conditions in a space
To rely on changes in pressure to operate an internal switch
To control the flow of refrigerant in the system
To regulate the flow of electricity in the control circuit
Answer explanation
The function of a pressure control in HVAC/R is to rely on changes in pressure to operate an internal switch, allowing it to regulate the system based on pressure variations.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of a relay in a refrigeration circuit?
To maintain stable temperature conditions in a space
To regulate the flow of electricity in the control circuit
To control the flow of refrigerant in the system
To initiate a corrective action when the control point is above the setpoint
Answer explanation
The purpose of a relay in a refrigeration circuit is to regulate the flow of electricity in the control circuit.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the function of a defrost time clock in a refrigeration system?
To initiate a defrost cycle to control heaters that melt frost and ice from the evaporator
To maintain the space temperature at an acceptable value
To regulate the flow of electricity in the control circuit
To prevent the compressor from starting too soon after shutting off
Answer explanation
The function of a defrost time clock in a refrigeration system is to initiate a defrost cycle to control heaters that melt frost and ice from the evaporator.
Access all questions and much more by creating a free account
Create resources
Host any resource
Get auto-graded reports
Continue with Google
Continue with Email
Continue with Classlink
Continue with Clever
or continue with
Microsoft
%20(1).png)
Apple
Others
Already have an account?
