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Directions to Solve

Find the correctly spelt words.

Q1: (solve as per the direction given above)

A Inocculation

B Inocullation

C Inoculation

D Innoculation

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

A fuel used

B compression ratio

C speed of engine

D none of these

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 controlling the exhaust temperature

B reducing the compression ratio

C controlling the air-fuel mixture

D controlling the ignition timing

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

A Correct

B Incorrect

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

A No

B Yes

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

A 0

B 50

C 120

D 100

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

A end of suction stroke

B end of compression stroke

C beginning of suction stroke

D none of these

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

A Ignition coil

B Spar kplug

C Carburettor

D Fuel injector

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

A have no effect on

B increase

C decrease