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 ' Electrician- cum- Mechanic' And exam conducted in the year 2023. And Question paper code was '118/2023/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-D
Question28:-Which turbine is used for low head and large discharge?
A:-Pelton turbine
B:-Francis turbine
C:-Kaplan turbine
D:-None of the above
Correct Answer:- Option-C
Question29:-The function of moderator in a nuclear reactor is
A:-to absorb the excess of neutrons
B:-to increase the energy of the neutrons
C:-to slow down the neutrons
D:-to slow down the electrons
Correct Answer:- Option-C
Question30:-Which control system is used for Eddy current drives?
A:-Slip controller
B:-Rectifier controller
C:-AC voltage controller
D:-DC chopper controller
Correct Answer:- Option-A
Question31:-What is IGBT in VF drive?
A:-Inverter switching device
B:-DC bus switching device
C:-Rectifier switching device
D:-Field supply switching device
Correct Answer:- Option-A
Question32:-How the contacts in a contactor can be engaged for working?
A:-By mechanical setting
B:-By manual setting
C:-By using bimetallic strip to change the position
D:-By operating electromagnet to change the position
Correct Answer:- Option-D
Question33:-In a DC generator, on doubling the supply frequency, the eddy current
A:-Remain uneffected
B:-Become half of their former value
C:-Become four times of their former value