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 'Pump Operator' And exam conducted in the year 2023. And Question paper code was '019/2023'. 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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A crankshaft is made off
A) Cast steel B) Forged steel
C) Forged and heat treated alloy steel D) Cast and heat treated alloy steel
What is ovality of a bore ?
A) Difference in dia measured top to bottom
B) Difference in dia thrust to non thrust side of cylinder
C) Difference in dia measured only at top
D) Difference in dia measured only at bottom
Exhaust valve face angle is generally
A) 30 degree B) 75 degree
C) 60 degree D) 45 degree
What type of bearing fitted in the connecting rod big end ?
A) Needle bearing B) Ball bearing
C) Taper roller bearing D) Shell bearing
Exhaust valves are opened at a definite degree before BDC in engine valve
timing. This is called
A) Lead B) Lap
C) Overlap D) Clearance
Scavenging is done for the following purpose
A) Fuel consumption B) Power output
C) Speed D) Oil pressure
What is the effect if thermostat valve is stuck in closed position ?
A) Engine gets over cooling B) Engine gets over heating
C) Engine does not start D) Engine does not stop
The boiling temperature of the coolant in the cooling system is increased by the
use of
A) Atmospheric valve and vacuum valve
B) Inlet and exhaust valve
C) Pressure relief valve and vacuum valve
D) Overflow valve and air valve
Percentage of fuel energy lost to the cylinder walls in an automobile engine is
approximately
A) 80 per cent B) 25 per cent
C) 10 per cent D) 1 per cent
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