Kerala PSC Previous Years Question Paper & Answer
Page:8
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.
Bs-First aw
C-Second law
1)
Correct Answer:- Option-é
QuestionS8:-A drier is located in the
‘Actiquid line
B:-Vapour line
C-Compressor
D: Evaporator
Correct Answer:- Option-é
Question59:-Out of the following refrigerants, which one has lowest freezing point ?
‘AcFreon-22
B:-Freon-12
C-Ammonia
D-Sulphur di oxide
Correct Answer:- Option-é
‘Question60:-The power per tone in KW of refrigeration is given by
350۳ھ
8:35 2000.
೦-350/0
0:35/007
Correct Answer:- ೦೧000,
Question61:-The index which correlates the combined effects of air temperature, relative humidity and air velocity on the human body. is known as
‘Ac Mean radiant temperature
B:-Dew point temperature
Coffective temperature
D-None of these
Correct Answer:- Option-C
Question62:-The process of adding of moisture to air at constant dry bulb temperature is known as
‘A Humidification
B:-Dehumidification
C-Heating
एतन्मा
Correct Answer:- Option-é
Question63:-Undercooling in a reftigeration cycle
‘Acincreases COP
B:-Decreases COP
C:Don't chance COP
D:-Unpredictable
Correct Answer:- Option-é
Question64:-Superheated vapor behaves
Ac Exactly as gas
Bs-As steam
CeAs ordinary vapor
D:-Approximately as gas
Correct Answer:- Option-D
Question65:-The most widely used superconductor is
Ac Nichrome
B:-Tungsten
ധി