Kerala PSC Previous Years Question Paper & Answer
Page:12
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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The most common method to test the armature winding for short and open coils is
(5) Insulation resistance test (B) Drop test
(ಲ) Growler test (D) Ground test
The maximum reverse voltage that a diode can withstand is referred as
(മ) Peak inverse voltage (8) Barrier voltage
(ಲ) Threshold voltage (D) Knee voltage
The full load copper loss of a transformer is 400 W. The Copper loss at half load will be
(ಹ) 100% ൫ 100 kW © 200 (0) 800
In a wiring two lamps should be switched ‘ON’ at a time, the wiring is known as
(മ) Corridor wiring (8) Godown wiring (C) Hostel wiring (D) Tunnel wiring
ELCB's are specially used to disconnect the supply under conditions.
(A) Opencircuit (8൫ Over load (~) Short circuit (D) None of these
The maximum safe temperature of class B insulation material is .
(മ) 130°C (B) 105°C © 90°C (D) 120°C
The controlling torque in an indicating instrument is
(ಹ) Decreases with the deflection of moving system
(3) Opposes the deflection torque
(ಲ) Proportional to supply voltage
(D) None of these
Form Factor is defined as ratio :
(५) Average Value 8 RMS Value
RMS Value Average Value
© RMS Value ல) Maximum Value
Maximum Value RMS Value
020/2018 12 A
