Kerala PSC Previous Years Question Paper & Answer
Page:10
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Junior Instructor (Electronic Mechanic)' And exam conducted in the year 2023. And Question paper code was '081/2023/OL'. Medium of question paper was in Malayalam or English . Booklet Alphacode was ''. 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.
Question48:-A triangular wave shape is obtained in a function generator
A:-by differentiating a square wave
B:-by integrating a square wave
C:-by integrating a sine wave
D:-by differentiating a sine wave
Correct Answer:- Option-B
Question49:-In a digital multimeter resistance is measured by using
A:-Variable current source
B:-Variable voltage source
C:-Constant current source
D:-Constant voltage source
Correct Answer:- Option-C
Question50:-The delay line in CRO is placed after
A:-Horizontal Amplifier
B:-Vertical amplifier
C:-Trigger circuit
D:-Power supply
Correct Answer:- Option-B
Question51:-The recommended configuration for soldering is
A:-Wave joint
B:-Butt joint
C:-Lap joint
D:-Scarf joint
Correct Answer:- Option-C
Question52:-Addition of increases the mechanical property of a tin-lead
solder.
A:-Antimony
B:-Bismuth
C:-Molybdenum
D:-Cerium
Correct Answer:- Option-A
Question53:-The purpose of using flux in soldering is
A:-Increase the fluidity of solder metal
B:-Fed up gaps in a bad joint carbon steel
C:-Prevents oxides forming
D:-Wash any surplus solder