Kerala PSC Previous Years Question Paper & Answer
Page:13
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Refrigeration Mechanic UIP' And exam conducted in the year 2023. And Question paper code was '018/2023/OL'. Medium of question paper was in Malayalam or English . Booklet Alphacode was ''. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
Question67:-What is the use of desiccants in filter drier ?
A:-Absorb refrigerant
B:-Absorb lubricant
C:-Absorb acid
D:-Absorb moisture
Correct Answer:- Option-D
Question68:-Which type of defrosting method is used in frost free refrigerator ?
A:-Electric heater method
B:-Reverse cycle method
C:-Manual method
D:-Water defrost method
Correct Answer:- Option-A
Question69:-What is the normal drinking water temperature maintained in the
water cooler ?
A:-18 to 22 °C
B:-10 to 12 °C
C:-0 to 2 °C
D:-4 to 6 °C
Correct Answer:- Option-B
Question70:-In which refrigerating machine perishable foods are stored for long
period ?
A:-Water cooler
B:-Visible cooler
C:-Deep freezer
D:-Bottle cooler
Correct Answer:- Option-C
Question71:-The operation of expanding the inside diameter of a pipe to take in the
outside diameter of another pipe end of same size is known as
A:-Brazing
B:-Flaring
C:-Swaging
D:-Pinching
Correct Answer:- Option-C
Question72:-Which gas is used for leak testing and flushing the refrigeration
systems ?
A:-Oxygen
B:-Hydrogen