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 'Operator - Kerala Water Authority' And exam conducted in the year 22. And Question paper code was '008/22'. 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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Which transformer does not step up or step down the voltage ?
(A) Auto transformer (B) Isolation transformer
(C) Power transformer (D) Current transformer
Binary value of 0101 is equivalent to decimal number :
«^ 5 (छ) 7 (0) 4 (0)
An SCR has semiconductor layers.
(A) 1 (B) 2 (0) 4 (D)
Ripple frequency of full wave bridge rectifier is :
(^) F input (B) 2 F input (C) 4 Finput (D)
7 F input
Which method of speed control is used to obtain above normal speed in DC series
motor ?
(^) Field taping method (B) Voltage control method
(C) Field diverter method (D) Armature control method
Which one is a Universal gate ?
(A) OR (B) NOR (C) NOT (D) AND
A UJT contains PN junctions.
(^) 1 (B) 2 (0 8 (D) 4
The insulation resistance of a DC motor is measured in :
(^) Mega volts (B) Mega watts (C) Mega ohms (D)
Kilo ohms
Which test is used to check whether the switches are connected in live wire or not ?
(A) Continuity test (B) Open circuit test
(C) Ground test (D) Polarity test
Which electrical accessories is used for taking supply from a lamp holder ?
(A) Ceiling rose (B) 3 pin plug top
(C) Adaptor (D) Two pin plug top
An example of invertor gate is :
(A) യേന (B) OR (0 NOT (D) AND
008/2022
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