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Directions to Solve

Find the correctly spelt words.

Q1: (solve as per the direction given above)

A Cancious

B Gracous

C Dilicous

D Judicious

Q2: The knocking tendency in spark ignition engines can be decreased by adding dopes like tetra ethyle lead and ethylene dibromide.

A Agree

B Disagree

Q3: If V1 is the jet velocity and V0 is the vehicle velocity, then the propulsive efficiency of a rocket is given by

A

B

C

D

Q4: A diesel engine has compression ratio from

A 15 to 25

B 6 to 10

C 25 to 40

D 10 to 15

Q5: A petrol engine, during suction stroke draws

A air only

B petrol only

C a mixture of petrol and air

Q6: A supercharged engine as compared to an ordinary engine

A requires smaller foundation

B all of these

C is lighter

D consumes less lubricating oil

Q7: Which of the following does not relate to a compression ignition engine?

A Fuel injector

B Fuel pump

C Governor

D Carburettor

Q8: Which of the following statement is correct regarding petrol engines?

A A fine fuel spray mixed with air is ignited by the heat of compression which is at a high pressure.

B all of the above

C The fuel is first evaporated after passing through a carburettor and is mixed with air before ignition.

D The fuel supplied to the engine cylinder is mixed with necessary amount of air and the mixture in ignited with the help of a spark plug.

Q9: Supercharging __________ the power developed by the engine.

A increases

B has no effect on

C decreases

Q10: Uranium has isotopes

A all of these

B U234

C U238

D U235