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Directions to Solve

Find the correctly spelt words.

Q1: (solve as per the direction given above)

A Innoculation

B Inocculation

C Inoculation

D Inocullation

Q2: The air standard efficiency of an I.C. engine depends on

A fuel used

B none of these

C compression ratio

D speed of engine

Q3: The mean effective pressure of a diesel engine having fixed compression ratio will __________ if cut off ratio decreases.

A increase

B decrease

Q4: The knocking tendency in spark ignition engines may be decreased by

A reducing the compression ratio

B controlling the air-fuel mixture

C controlling the ignition timing

D controlling the exhaust temperature

Q5: In a two stroke engine, the working cycle is completed in two revolutions of the crankshaft.

A Incorrect

B Correct

Q6: A reactor capable of converting a fertile material into fissile isotopes is called regenerative reactor.

A Yes

B No

Q7: Alpha-methyl-naphthalene (C11 H10) has a cetane number of

A 50

B 0

C 100

D 120

Q8: In a petrol engine, the mixture has the lowest pressure at the

A none of these

B end of suction stroke

C beginning of suction stroke

D end of compression stroke

Q9: Which of the following does not relate to a spark ignition engine ?

A Spar kplug

B Fuel injector

C Carburettor

D Ignition coil

Q10: The increase in intake temperature of internal combustion engines will __________ efficiency.

A increase

B decrease

C have no effect on