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Directions to Solve

Find the correctly spelt words.

Q1: (solve as per the direction given above)

A Judicious

B Cancious

C Gracous

D Dilicous

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 25 to 40

B 6 to 10

C 10 to 15

D 15 to 25

Q5: A petrol engine, during suction stroke draws

A petrol only

B air only

C a mixture of petrol and air

Q6: A supercharged engine as compared to an ordinary engine

A all of these

B consumes less lubricating oil

C requires smaller foundation

D is lighter

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

A Fuel injector

B Governor

C Carburettor

D Fuel pump

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

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

B all of the above

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

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 has no effect on

B increases

C decreases

Q10: Uranium has isotopes

A U235

B U234

C U238

D all of these