Kerala PSC Previous Years Question Paper & Answer
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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'ELECTRICIAN GR II PRINTING GOVT PRESS' And exam conducted in the year 2015. And Question paper code was '141/2015'. 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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The Primary equivalent of Secondary current Iz of a transformer in the equivalent
circuit of transformer 15 :
Kl (®) 11/ष् ھ)
௩௩ 2) गः )0(
In a transformer the half load copper loss is 600 W. It's full load copper loss will be :
കു 600 Watt ല് 1200 Watt
(C) 2400 Watt (D) 300 Watt
Condition for maximum efficiency in a transformer is :
آلاے وت رق oWy 2 3 @
کت ض٥ 605
തു കി را سے الات ا
VICOS ¢V, 1,COS¢, V,COS¢, ۷17 084
When the frequency is doubled, what are the change in eddy current and hysteresis
1058 :
(ಗಿ) Hysteresis loss doubled, Eddy current 1085 600106,
(B) Hysteresis loss doubled, Eddy current loss quadrappled
(C) No change in hysteresis and Eddy current 1055
(D) Hysteresis remaining same Eddy current loss reduced to half
The most economical connection for small and high voltage transmission is :
(ക) Star — Delta (©) Delta — Star
(C) Star — Star (D) Delta — Delta
A 100 KVA Delta transformer one of the phase of secondary is get out of
order. How much load it can carry :
(A) 100 KVA (2). 501074
(0 67.3 KVA യ 57.7KVA
The frequency of Rotor Current at the time of starting of an induction Motor is :
(^) Supply frequency (B) Slip frequency
(@ 15/8110 frequency (D) None of these
In two watt meter method of power measurement one Watt meter (W2) shows negative
reading to get actual reading :
(ல W1+We യ 9-٣۳
(@ W1lonly (D) Wz2only
141/2015 4 A
