Kerala PSC Previous Years Question Paper & Answer
Page:11
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'LINEMAN PUBLIC WORKS DEPARTMENT ELECTRICAL WING' And exam conducted in the year 2018. And Question paper code was '020/2018'. 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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Damper winding in a synchronous motor
(^) Reduces windage losses
(B) Serves to start the Motor
(<) Improves the power factor of the motor
(D) Increase the hunting of the motor
Buchholz relay is used on transformer.
(മ) ജല! ഈട (B) Welding (ಲ) ೦800064 (D) Air cooled
The direction of rotation of an Induction motor can be changed by changing
(ಹ) The supply frequency (B) The supply Voltage
ಲ) The speed D) The phase sequence
P ற் 60
In a Star delta starter, at the time of starting, the phase voltage across the terminals of a
squirrel cage induction motor is line voltage.
(ಸ) J3 times © مسي (©) ടെ © Y times
The connection of a Zener diode in a circuit is always
(ಹ) Forward biased (B) In series (C) Reverse biased (D) Positively biased
The most commonly used wiring system in electrical wiring installation is
(^) Tree system (B) Ring main system
(ಲ) Distribution system (D) None of these
The mettalic sheath is provided in cables to safeguard against
(ಹಿ) Mechanical injury (B) Moisture content
(ಲ) Rusting (D) Serving
A device which opens or closes an auxiliary circuit under predetermined conditions in the
main circuit is
(ಹ) Relay (B) Circuit breaker )© ண்ட் (D) Fuse
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