Kerala PSC Previous Years Question Paper & Answer

Title : Mechanic
Question Code :


Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Mechanic' And exam conducted in the year 2023. And Question paper code was '003/2023/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: 2 out of 11
Excerpt of Question Code: 003/2023/OL

A:-Synchronizing unit stuck
B:-Synchronizer worn-out
C:-Bearing worn out or dry
D:-Defective gear shift mechanism
Correct Answer:- Option-C
Question10:-What is the load taken by a taper roller bearing?
A-Radial Load
-Axial and Radial Load
C:-Thrust Load
D:-Non thrust Load
Correct Answer:- Option-B
Question11:-The efficiency of hydraulic braking system is
D:-About 90%
Correct Answer:- Option-D
Question12:-If proportioning valve is not working
A:-Front brakes may lock
B:-Rear brakes may lock
C:-Front brakes may drag
D:-Rear brakes may drag
Correct Answer:- Option-A
Question13:-What is the main cause for wear on one side of tyre?
A:-Over inflation
B:-Under inflation
C:-Improper camber
D:-Improper caster
Correct Answer:- Option-C
Question14:-Disc brakes self-adjust when the lining wear allows the piston to
A:-Contact the disc
B:-Slide outward through the seal
C:-Cause seal deflection
D:-Reposition the seal groove in the caliper
Correct Answer:- Option-B
Question15:-What causes "Air suction" in pump of hydraulic power steering system?
B:-Low pressure
C:-High fluid level
D:-Steering wheel play
Correct Answer:- Option-A

Question16:-What is the compression ratio of an engine, its clearance volume is 10 c.c. and
swept volume is 90 6.௦?

0:-11 : 1

Correct Answer:- Option-C

Question17:-In a six cylinder engine, the power impulse occurs after 'x' degrees of crank shaft
rotation. Where 'x' is





Correct Answer:- Option-C

Question18:-In a Diesel fuel injection pump, the effective pressure strokes of the plungers
are regulated by means of a

A:-Fuel pump
B:-Control rack
C:-Needle valve

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