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Directions to Solve

Find the correctly spelt words.

Q1: (solve as per the direction given above)

A Lackadisical

B Lckadaisicle

C Lackdaisical

D Lackadaisical

Q2: The loud pulsating noise heard within the cylinder of an internal combustion engine is known as

A detonation

B supercharging

C pre-ignition

D turbulence

Q3: The air-fuel ratio of the petrol engine is controlled by

A injector

B governor

C carburettor

D none of these

Q4: If the compression ratio in I.C. engine increases, then its thermal efficiency will

A decrease

B remain same

C increase

Q5: The relative efficiency of an I.C. engine is the ratio of the indicated thermal efficiency to the air standard efficiency.

A Incorrect

B Correct

Q6: The volumetric efficiency ofa well designed engine may be

A 75 to 90%

B 60 to 70%

C 30 to 40%

D 40 to 60%

Q7: Which of the following statement is correct regarding the features of a Breeder reactor?

A It requires liquid sodium metal as moderator.

B all of the above

C It produces more fuel than it consumes.

D It requires highly enriched fuel.

Q8: A long delay period in compression ignition engines gives a more rapid rise in pressure which causes knocking.

A No

B Yes

Q9: A fission chain reaction in uranium can be developed

A by increasing the contents of U235

B by slowing down fast neutrons so that U235 fission continues by slow neutron

C both (a) and (b)

D none of these

Q10: Thermal efficiency of a two stroke cycle engine is __________ a four stroke cycle engine.

A less than

B equal to

C greater than