## Kerala PSC Previous Years Question Paper & Answer

Title : Furnce Operator Kerala Municipal Common Service / Electrician Health Services / Lineman PWD
Question Code : A

Page:9

Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name ' Furnce Operator Kerala Municipal Common Service / Electrician Health Services / Lineman PWD ' And exam conducted in the year 2019. And Question paper code was '026/2019'. 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.

page: 9 out of 16
Excerpt of Question Code: 026/2019

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The external characteristics of & shunt gencrator is obtained from 15
characteristics.

(ಗಿ) Internal (3) Performance

Voltage equation of a dc motor is

(A) V=Eb-IaRa (B) V=Eb+IaRa
(C) V=Eb-Ia’Ra യ) -

Condition for maximum mechanical power developed in a dc motor is
(A) Eb=V (8) Eb>V

(0) ೫೪೪ D) ‏وا‎

At constant load, the speed of a dc motor is affected by
(A) Back emf (3) Armature current
(C) Field flux (D) Armature resistance

A compound motor 15 best suited for driving
(ಗ) Reciprocating pump (B) Crains and hoists
(ಲ) Lathes (D) Electric locomotives

For dc shunt motors, which method is used for wide and very sensitive speed control ?
(A) Armature voltage control (8) Flux control method
(ಲ) Tapped field control (D) Ward-Leonard method

‘Which of the following test requires two identical dc shunt machines ?
(ಗ) Retardation test (B) Swinbum’s test
(C) Hopkinson’s test (D) No load test

Among the following, which is the transmission voltage used in India ?
(A) 1000V (B) 40000V
(ಲ) 220000V (D) 40V

9 26/2019
[7.7.0.]