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-PWD (Electrical Wing) ' And exam conducted in the year 2021. And Question paper code was '131/2021'. 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 of the following is suitable for starting squirrel cage induction motor?
(A) Rotor resistance starter (B) 4 point starter
(C) 3 point starter (D) Auto transformer starter
DIN rail is used to mount
(A) Push button switches (B) Circuit breakers
(C) Indicating lamps (D) Kit Kat fuses
Which of the following is not a method of synchronisation?
(A) Dark lamp method (B) Bright lamp method
(C) Dark and bright lamp method (D) MMF method
Centrifugal switch in a centrifugal pump motor is used to control
(A) Supply through the starting winding
(B) Supply through the running winding
(C) Speed of the pump motor
(D) Overload current
Speed of a SCIM can be changed by
(A) Varying number of poles
(B) Varying supply phase sequence
(C) Interchanging any two motor terminals
(D) None of the above
Growler is a
(A) Armature testing machine (B) Earth testing machine
(C) Coil winding machine (D) Polarity testing machine
Moderator is a part of
(A) Tidal power plant (B) Solar power plant
(C) Windmill (D) Nuclear power plant
The part which reduces the water hammering effect in hydroelectric power plant
system
(A) Reservoir (B) Tail race
(C) Surge tank (D) Pen stock