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 'LINEMAN GR I REVENUE' And exam conducted in the year 2015. And Question paper code was '227/2015'. 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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Which type of transformer winding has مص ohmic resistance and no magnetic leakage
resulting in no losses?
(A) Distribution transformer 18) Power transformer
(©) Ideal Transformer (D) Instrument transformer
Which of the following speed is called synchronous speed in a 3 phase induction motor?
(A) Speed of the rotating magnetic field - (B) Speed of the rotor
(¢) Speed of the flux 09180 in the rotor (D) Speed of the stator
When a 3 phase motor is stationary, the frequency of the rotor current is :
(A) Same as supply frequency (B) Less than supply frequency
) More than supply frequency (D) Zero frequency
A 3 phase induction motor takes a current of 120 A from 400 V, 50 Hz supply. Determine the
power factor ;
ಯ) 0.82 . ര 08
(©) 0.87 D 09
Which part of the magnetic over load relay is cause to lift the plunger in the upward
direction?
(ಯ) Magnetie coil (B) Plunger
(C) Relay contact lever (D) Insulated bracket
Which type of single phase motor is having wound rotor?
(ക) Split phase motor (B) Universal motor
(C) Capacitor motor (D) Shaded pole motor
Which of the following motor does not have a winding or commutator or brush in its rotor?
(ക Slip ring induction motor (7) Stepper motor
(€) Universal motor (D) . Induction motor
The size of the winding wires are specified in SWG numbers, The diameter of 36 SWG, SE
* copper wire is :
(ಯ) 0.19mm (B) 1.9mm
)© 0.019 mm M) 19mm
227/2015 86 A
