Kerala PSC Previous Years Question Paper & Answer
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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'JUNIOR INSTRUCTOR (TECHNICAL POWER ELECTRONICS SYSTEM) ' And exam conducted in the year 2017. And Question paper code was '078/2017/OL'. 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.
C:-Both AC and DC voltage
D:-Pulse signals only
Correct Answer:- Option-C
Question97:-DC operating voltage of IC 555 is
A:-+5 to +18 V
B:-+18 to +36 V
C:-+5 to +28 V
D:-+18 to +48 V
Correct Answer:- Option-A
Question98:-Approximately what is the frequency limit of the optical fibre
A:-20 GHz
B:-1 MHz
C:-100 MHz
D:-40 GHz
Correct Answer:- Option-D
Question99:-The higher the index number of a fibre optic cable
A:-The higher the speed of light
B:-The lower the speed of light
C:-Has no effect on the speed of light
D:-The shorter the wavelength propagation
Correct Answer:- Option-B
Question100:-The three major groups in the optical system are
A:-The components, the data rate and response time
B:-The source, the link and the receiver
C:-The transmitter, the cable and the receiver
D:-The source, the link and the detector
Correct Answer:- Option-C