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Directions to Solve

Find the correctly spelt words.

Q1: (solve as per the direction given above)

A Lckadaisicle

B Lackadaisical

C Lackdaisical

D Lackadisical

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

A pre-ignition

B detonation

C turbulence

D supercharging

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

A carburettor

B governor

C injector

D none of these

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

A increase

B decrease

C remain same

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 60 to 70%

B 30 to 40%

C 40 to 60%

D 75 to 90%

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

A It requires highly enriched fuel.

B all of the above

C It produces more fuel than it consumes.

D It requires liquid sodium metal as moderator.

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

A Yes

B No

Q9: A fission chain reaction in uranium can be developed

A both (a) and (b)

B by increasing the contents of U235

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

D none of these

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

A greater than

B less than

C equal to