Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'ASSISTANT ENGINEER ELECTRICAL PLANTATION CORPORATION OF KERALA LTD' And exam conducted in the year 2018. And Question paper code was '029/2018'. 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.
Input to a Half Wave Rectifier circuit is a 50 Hz sine wave. What will be the frequency of its
output waveform ?
(മ) 0Hz ൫ 2511 ര 80118 (D) 100 Hz
Which of the following transistor amplifier configuration is best suited for impedance
೮೫ ൫ ഠേ ட (D) CD ۵ہ
Gain ‘A’ of an amplifier circuit without feedback is found to be 50. To make it an oscillator
circuit the value of the positive feedback gain required is
@ 1 ൫ 0.2 © 2 യു 0.01
Material used for making brushes in a dc machine 15
(5) Aluminium (8) Carbon (ಲ) 28೦ (D) Chromium
Direction of rotation of a dc motor can be reversed by changing the direction of
(ಹಿ) Armature current only
(8) Field current only
(C) Either Armature current or Field current only
(D) Both Armature current and Field current
A long shunt 60 compound generator has armature, shunt and series field windings with
0.01 0, 100 Q, 0.02 Q respectively. Find the armature current when it is supplying a load of
50 A at 200 V.
(ಹ) 48 A ൫ 494 © 51 + (D) 52 ^
A 4 pole 255 V lap connected dc shunt motor with 500 conductors takes an armature current
of 50 A at a magnetic field of 10 milli Weber. If the armature resistance 15 0.02 ೧, and total
brush drop is 2 V, calculate the speed of the motor in rpm.
(ಹ) 1500 © 0 €) 3000 (D) 3120
In a metering instrument, hair spring used for providing controlling torque is made of
(മ) Copper (8) Carbon (~) Aluminium (D) Phosphor Bronze
029/2018 6 A