interview ask questions in Compressor related.
1. Question :-
What is cylinder of compressor?
Answer :-
Gas is compressed in a cylinder of the compressor.
2. Question :-
What is Intercooler and where it's installed?
Answer :-
Gas is compressed by the compressor and cooled by an Intercooler, then this gas is compressed again in another compressor.It is installed in between tow compressor.
3. Question :
What is formula of volumetric efficiency of the compressor?
Answer :-
Actual volume of gas pumped
——————————————— × 100
Theoretically calculated volume
4. Question :-
Which material used in “V” belt?
Answer :-
V belt is made of rubber, layers of fabric and cord.
5. Question :-
What is function of flot valve of the oil separator?
Answer :-
When certain oil level is reached in the oil separator a float open a needle valve and allows the oil to return into the crankcase of the compressor.
6. Question :-
What is Function of impeller of the centrifugal compressor ?
Answer :-
The impeller of the centrifugal compressor to compressed vapour refrigerant by the help of centrifugal force.
7. Question :-
Which type of compressor is the best and why?
Answer :-
Reciprocating compressor is the best compressor due to its higher efficiency. It is used both in domestic and commercial refrigerating machines.
8. Question :-
Which temperature is mentain in a centrifugal compressor?
Answer :-
A centrifugal compressor is suitable for temperature from 50° F to 130° F.
9. Question :-
Which compressor is used in check valve and why?
Answer :-
The rotary compressor is used in check valve in the suction valve to prevent backing up pressure of the gas with greater percentage of oil into the cooling coil.
10. Question :-
Why muffler are used in compressor?
Answer :-
Muffler are used in suction and discharge lines to reduce the pumping sound made by compressor.
11. Question :-
Upto how much capacity a sealed unit is used?
Answer :-
From 1/12 H.P to 2 H.P .
12. Question :-
Number of cycle is complete of refrigeration system in 1 minute.
Answer :-
50 cycle is complete of refrigeration system in 1 minute.
