QuizApp
Home
Teacher
Login
Register
Guest Mode
Student
Login
Register
Guest Mode
Dashboard
Study MCQ
Refrigeration and Air Conditioning Technician
MOBILE AIR CONDITIONING
Set 4
Set 4
Practice Mode
Share
Prev
Next
Set Completed!
0
/
5
0%
Next Set
Q10106
Permalink
Report
Which size service port is used in automobile air conditioners for HFC-134a refrigerant?
A
1/4" - 13 ACME
B
1/2" - 16 ACME
C
3/8" - 15 ACME
D
5/16" - 14 ACME
Q10107
Permalink
Report
Why the service port fitting size differs in HFC-134a from CFC-12 car AC system?
A
Increases quantity of refrigerant charge
B
Decreases quantity of refrigerant charge
C
Avoids cross contamination of refrigerants
D
Improves performance of car air conditioners
Q10108
Permalink
Report
What is the advantage of recycling R 134a refrigerant?
A
Minimise air pollution
B
Reduce global warming
C
Increase water pollution
D
Increase ozone depletion
Q10109
Permalink
Report
Which controls the speed of blower fan motor to vary air cooling or heating in car AC?
A
Selector switch and resistors
B
Thermostat and return-air sensor
C
Ambient and cabinet temperature
D
Increase or decrease refrigerant flow
Q10110
Permalink
Report
Why the miscibility of refrigerant and oil is preferred in car AC?
A
Lubricate the clutch assembly
B
Lubricate the heat exchangers
C
Circulate oil back to compressor
D
Lubricate the moving parts of TEV
‹
1
2
3
4
5
6
›
Report Question Issue
Your Name (Optional)
Your Email (Optional)
What do you think is the correct answer?
*
-- Select the correct answer --
A
B
C
D
Select which option you believe is the correct answer.
Feedback
*
Verify you're human
*
Loading...