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.
‘Which diode is used in measuring instruments णि protection from overload ?
(A) PN junction diode (8) Zenerdiode
(¢) 1N4007 (D) LDR
Ripple frequency of a centre tap fullwave rectifier is at 230 V, 50 Hz supply is
(A) 100Hz (B) 50Hz
(0 08% (D) 25Hz
Peak inverse voltage of fullwave bridge rectifier is
@) 2v, ® -5
© 4४ © v,
The binary number 11011 is equal to the decimal
( 27 ®) 25
© 29 (फ) 11
The value of forbidden energy gap of silicon atom is
(A) 7۷ (B) 0.72eV
(0) 0507 (0) 1.12 ۷7
‘Which material is used णिः thermal insulation in electrical heating equipments ?
(A) Mica (B) Asbestos
(€) Bakelite (D) Enamel
100. In staircase wiring the lamp is operated with
(A) two intermediate switch
(8) two one-way switches
(C) one one-way and one two-way switch
(D) two two-way switches