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 (Mechanic Motor Vehicle)' And exam conducted in the year 2023. And Question paper code was '195/2023'. 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.
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For aiming the head lights, the distance between the head light and screen should be :
(A) 16m (B) 46m
(0 7.6m (D) 106m
The lamps are protected from overloading by :
(^) Fuse (B) Switch
(C) Capacitor (D) Harness
Distance travelled by the piston in moving from Top dead centre to Bottom dead centre is
called :
(^) Stroke ൯) Bore
(C) Engine capacity (D) Engine torque
The efficiency of an Otto cycle is increased by increasing :
(A) Temperature ratio (B) Pressure ratio
(C) Compression ratio (D) None of the above
For the condition of maximum pressure and heat supplied :
(A) Otto cycle is more efficient than diesel cycle
(B) Diesel cycle is more efficient than Otto cycle
(C) Dual cycle is more efficient than Otto and diesel cycle
(D) Dual cycle is less efficient than Otto and diesel cycle
The firing order in case of six cylinder in-line engine is usually :
(७0) 1-6-3-5-2-4 ൪൫ 1-3-5-2-4-6
(€) 1-4-5-6-3-2 0) 1-5-8-6-१-4
Ina four stroke cycle diesel engine the inlet valve opens :
(A) 10° — 20° before TDC. (B) 10° — 20° after TDC
(C) 39° — 50° before TDC. (D) 39°-—50° after TDC
A four stroke petrol engine theoretically works on :
(A) Diesel cycle (B) Stirling cycle
(C) Otto cycle (D) Joule cycle
The compression ratio for Diesel engine varies from :
(A) 6 (B) 20 to 30
(C) 5to8 (D) 15 to 20
5 195/2023
[P.T.0.]