Kerala PSC Previous Years Question Paper & Answer
Page:11
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.
Correct Answer:- Option-C
Question54:-Heat for soldering process is supplied by
A:-Soldering iron
B:-Induction furnace
C:-Electric resistance method
D:-Any of the above
Correct Answer:- Option-A
Question55:-Temperature range in soldering process is
A:-40°C - 100°C
B:-180°C - 250°C
C:-600°C - 900°C
D:-1000°C - 2000°C
Correct Answer:- Option-B
Question56:-Tropospheric scatter is used with frequency in the following range
A:-UHF
B:-VHF
C:-HF
D:-VLF
Correct Answer:- Option-A
Question57:-The maximum power of single side band waves under distortionless
condition is
A:-1.5 Pc
B:-Pc/2
C:-Pc/4
D:-Pc/3
Correct Answer:- Option-C
Question58:-Wide band FM is the case where the modulation index is
A:-around unity
B:-much greater than unity
C:-much less than unity
D:-around zero
Correct Answer:- Option-B
Question59:-In a super heterodyne receiver the frequency of local oscillator is
A:-half that of incoming signal
B:-slightly less than that of incoming signal
C:-higher than that of incoming signal