Kerala PSC Previous Years Question Paper & Answer
Page:7
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'LINEMAN PUBLIC WORKS ELECTRICAL WING' And exam conducted in the year 2016. And Question paper code was '055/2016'. 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.
49.
51,
52.
53.
54.
055/2016
. For pipe earthing the minimum internal diameter of galvanized iron or steel pipe
required is
A) 125m.m. B) 16 m.m.
C) 18 m.m. D) 38 m.m.
According to |. E. rules the leakage currentin an installation should not exceed
one by M part of the maximum current supplied to the installation.
A) 100 B) 500
C) 1000 D) 5000
_ The conductors of the armature windings are soldered at the commutator
A) segment internally B) brushes
C) riser D) segment directly
A simple method of increasing the voltage of a D.C. generator is
A) decrease the speed of rotation
8) increase the speed of rotation
C) decrease the air gap of flux density
D) decrease the length of the armature
The existence of residual magnetism is not important if the D.C. generator is
notconnected 85 8.
A) series generator B) shunt generator
C) compound generator D) separately excited generator
The sodium vapor lamp operates in best efficiency at
A) 300°C B) 200°C
C) 400°C D) 450°C
Large value of air gap in an induction motor results in
A) providing better cooling
B) increased over load capacity
C) reducing the pulsation loss
D) reducing the noise
