Kerala PSC Previous Years Question Paper & Answer
Page:3
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Electrician in KSFDC, Tourism, Agriculture etc' And exam conducted in the year 21. And Question paper code was '121/21'. 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.
18.
19.
20.
21.
22.
23.
24.
25.
26.
Which is the diamagnetic substance?
(A) Water (B)
(C) Steel (D)
Air
Platinum
The direction of induced e.m-f. can be found with the help of :
(^) Lenz’s law (8)
(C) Right hand palm rule (D)
One Weber/second is called :
(A) 10൨൨൩ (B)
(C) 1 Volt (D)
Flemings left hand rule
Cork screw rule
1 Watt
1 Ampere
The magnetizing force required to wipe off residual magnetism is known as :
(^) Retentive force (8)
(C) Coercive force ())
The example of natural magnet 15 :
(A) ALNICO (3)
(೮) Nickel—iron ())
Eddy current loss
Relative force
Electro magnet
Lode-stone
Which electrical quantity is directly proportional to the eddy current?
(^) Current (8)
(0) Voltage ൬)
How the value of capacitance can be decreased?
(A) Increasing the distance between the plates
(B) Increasing the plate area
(C) Increasing the resistance of the plate
(D) Using high dielectric constant material
Frequency
Resistance
Which of the following quantity maintain the same polarity during charging and discharging
of a capacitor?
(^) Resistive drop (B)
(C) Capacitor Current (D)
What is the unit of susceptance?
(A) Ohm رم
( Mho (D)
Charge of capacitor
Capacitor voltage
Weber
Henry
121/2021
[7.7.0.]