Kerala PSC Previous Years Question Paper & Answer
Page:10
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'A/C MECHANIC KTDC' And exam conducted in the year 2017. And Question paper code was '132/2017'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. 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.
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Latent heat of vaporization 8 5 9೫ (8/10) 088-134 دز ج
(^) 662 (7) 992
(೧ 1033 (D) 3
The weight of HC charged to the system for drop in conversion from CFC 12 to HC is
(ಹ) 120% (೫) 100%
(© 60% (೧) 40%
Most of the refrigerants including CFCs, HCFcs, HFCs and HC blend are
(A) Non-toxic (B) Corrosive
(C) High density (D) Non-flammable
A refrigerant recovery unit needs the filter drier change, approximately after
(^) 50 to 60 hours of operation
(B) 100 hours of operation
(C) every 24 hours
(D) every time before recover refrigerants
The clearance between rotor and stator varies according to the
(ಹ) Coil of the motor (B) Air passage
(೧) Cablesize യ Size of the motor
The ball bearing of electrical motor are lubricated by
(ಹ) ೦1 (8) Grease
¢ ^ (D) Water
Which causes clogging at the expansion valve ?
(ಹ) ೦1 (B) Dust particles
(C) Moisture (D) Impurities
The reason for the thermostat switch to become defective is
(^) Moisture in the system
(8) Lack of lubrication oil to compressor
(0 Carbon formation of contact points
(D) OLP is not functioning
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