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Directions to Solve

Find the correctly spelt words.

Q1: (solve as per the direction given above)

A Burnning

B Friming

C Fryng

D Running

Q2: A turbo-jet does not require a turbine to drive the compressor.

A True

B False

Q3: For the same maximum pressure and heat input, the exhaust temperature of petrol engine is __________ than that of diesel engine.

A less

B more

Q4: The compression ratio in petrol engines is kept low as compared to diesel engines because higher compression ratio in petrol engines would lead to pre-ignition of fuel.

A Agree

B Disagree

Q5: The cetane (C16H34) which is a straight chain paraffin is assigned a cetane number of

A 50

B 120

C 0

D 100

Q6: Morse test is used to determine the I.P. of a

A single cylinder petrol engine

B four stroke engine

C single cylinder diesel engine

D multi-cylinder engine

Q7: A moderator

A absorbs neutrons

B does not absorb neutrons

C accelerates neutrons

D none of these

Q8: In a four stroke cycle diesel engine, the exhaust valve

A opens at 30° before bottom dead cnetre and closes at 10° after top dead centre

B opens at 30° after bottom dead centre and closes at 10° before top dead centre

C may open and close anywhere

D opens at bottom dead centre and closes at top dead centre

Q9: The two stroke cycle engines have lighter flywheel.

A Disagree

B Agree

Q10: The thermodynamic cycle on which the petrol engine works, is

A Rankine cycle

B Stirling cycle

C Joule cycle

D Otto cycle