Kerala PSC Previous Years Question Paper & Answer
Page:7
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Refrigeration Mechanic (HER)' And exam conducted in the year 2020. And Question paper code was '014/2020/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.
Question49:-The bank of tubes at the back of domestic refrigerator is
‘A-Condenser tubes
B:-Evaporator tubes
C-Throttiing tubes
D-Capillary tubes
Correct Answer:- Option-é
QuestionS0:-In cooling tower water is cooled by the process of
‘ACondensation
B:-Fusion
Cz Evaporation
D-All of the above
Correct Answer:- Option-C
QuestionS1:-The latent heat of water is
A540 K.Callkg
B:-240 K.CaliKg
C120 KCal/kg
D-60K.calkg
Correct Answer:- Option-é
QuestionS2:-Thermal conductivity of air with rise in temperature
Acincreases
B:-Decreases
C-Remains constant
D-May increase or decrease
Correct Answer:- Option-é
‘Question53:-The thermostatic expansion valve is also called
‘AcConstant superheat valve
B:-Constant pressure valve
Constant temperature valve
Constant volume valve
Correct Answer:- Option-é
QuestionS4:-A grill along with a damper is called
‘Ac Register
B:-Duct
ബടെ
സ
Correct Answer:- Option-é
QuestionS5:-The refrigeration plants are charged by introducing refrigerants from the cylinder at the
‘AcSuction of compressor
B:-Receiver
Cx Evaporator
Expansion valve
Correct Answer:- Option ®
QuestionS6:-Domestic refrigerator working on a vapor compression cycle uses the following type of expansion device.
‘AcElectrically operating throttling valve
B:-Manually operated valve
C:Thermostatic valve
D-Capillary tube
Correct Answer:- Option-D
QuestionS7:-The measurement of temperature is given by which thermodynamic law 7
AcZeroth law