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 'MOTOR MECHANIC/STORE ASSISTANT GROUND WATER' And exam conducted in the year 2015. And Question paper code was '232/2015'. 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.
24. Which of the following is a rich air fuel ratio?
(4) 1 B 11
(0) 1 (0) 15:1
25. 'The percentage of combustion heat, available at crank shaft for useful work output is :
(ಗಿ) 35% (18) 55%
(¢) 60% (7) 20%
26. In an engine 081102 swirl combustion chamber :
(^) More air fuel mixture enters (B) Improved scavenging take place
(C) Improved combustion take place (D) Burned gas has no back pressure
27. The main purpose of piston pin offset is 10 :
(A) Perfectly balance the piston during power stroke .
(18) Prevent piston ship
(C) Centralise the piston
(D) Reduce piston slap
28. Some automobile engines have glow plugs to :
(A) Warn the driver about engine overheat
(B) Preheat the fuel for easier starting
(C) Preheat the combustion chamber
(D) Warm the passenger area
29. The upper and lower ends of the combustion chamber is formed by :
(ಗ) Piston and cylinder block (B) Cylinder walls and piston
(0 Piston rings and cylinder head (D) Cylinder head and piston
30.. Piston rings are provided to:
232/2018
(A) Completely seal the combustion gas
(18 Hold the piston concentric to cylinder walls
(C) Hold a fine oil film on cylinder walls
(D) Both (A) and (C)
