Kerala PSC Previous Years Question Paper & Answer

Title : Lecturer in Electronics and Instrumentation (Polytechnics)
Question Code :

Page:4


Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Lecturer in Electronics and Instrumentation (Polytechnics)' And exam conducted in the year 2023. And Question paper code was '121/2023/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.

page: 4 out of 20
Excerpt of Question Code: 121/2023/OL

Correct Answer:- Option-B
Question17:-The piston head of a two stroke engine has a deflector to ensure
A:-Charge delivery is directed upward into the cylinder
B:-Charge delivery is directed towards exhaust port
C:-Proper turbulent mixing of fuel-air mixture
D:-None of the above
Correct Answer:- Option-A
Question18:-The combustion duration of a Cl engine when compared to a SI engine
is
A:-Equal
B:-More
C:-Short
D:-None of the above
Correct Answer:- Option-B

Question19:-To adjust for the change in length of propeller shaft while the vehicle is
in motion

A:-A universal joint is provided

B:-A slip joint is provided

C:-Both universal joint and slip joint are provided
D:-None of the above

Correct Answer:- Option-B

Question20:-The most common economizers used in thermal power plants to
prevent corrosion of the flue gas passages are

A:-Direct contact type
B:-Condensing type
C:-Non condensing type
D:-None of the above
Correct Answer:- Option-C

Question21:-A capacitor when connected across a dc voltage source accumulates a
charge of Q coulombs . When two such capacitors are connected in series across
the same voltage source, the total accumulated charge will be

A:-Q

B:-2Q

C:-Q/2

D:-Q/4

Correct Answer:- Option-C

Question22:-Two resistances of value 10 ohms and 15 ohms are connected in
parallel and included in a dc circuit. The 10 ohms resistance carries 3 amperes. The

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