Kerala PSC Previous Years Question Paper & Answer
Page:4
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name ' Junior Instructor (Mechanic Auto Electrical and Electronics) ' And exam conducted in the year 2023. And Question paper code was '002/2023'. 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.
02/23
10.
11.
12.
13.
14.
15.
16.
17.
The process for enlarging or finishing a previously drilled hole is known as
A) Drilling B) Reaming
C) Tapping D) Lapping
Read the statements given below and choose the correct option.
Statement A : The ignition spark occurs as the piston nears TDC at the end of the
compression stroke.
Statement B : The spark occurs while the intake and exhaust valves are closed.
A) Statement A is correct B) Statement B is correct
C) Both statements are correct D) Both statements are wrong
A two stroke engine is normally equipped with a
A) train valve B) poppet valve
C) reed valve D) all of the above
Connecting rod connects crankshaft and the
A) Cylinder head B) Cylinder block
C) Camshaft D) Piston
Vibration damper is mounted on
A) the front end of the crankshaft
B) the back end of the crankshaft
C) the front end of the camshaft
D) none of these
Choose the correct statement.
A) inlet and exhaust valves are of the same size
B) the size of the inlet valve is more
C) the size of the exhaust valve is more
D) the size of the valves depends upon the capacity of an engine
The purpose of the thermostat is to keep the engine
A) hot B) cool
C) at desired temperature D) none of the above
Antiknock quality of gasoline is measured by
A) oxidation number B) vaporization number
C) octane number D) detonation number
58