IC Engines and Nuclear Power Plants Questions

• The colour of exhaust from diesel engine is generally
• The advancing of spark timing in spark ignition engines will __________ knocking tendency.
• Uranium has isotopes
• The maximum propulsive efficiency of a turbo-jet engine is at a speed of
• In a four stroke cycle diesel engine, the exhaust valve
• In qualitative governing, the quantity of fuel is varied to suit the load on the engine and the total charge of air is altered.
• An atom bomb utilises uncontrolled nuclear fission.
• A two stroke cycle engine gives __________ mechanical efficiency than a four stroke cycle engine.
• Light weight substances can not be effective moderators.
• Morse test is used to determine the I.P. of a
• The unit million electron volts (Mev) is commonly used to measure the nuclear energy.
• 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.
• Which of the following does not relate to a compression ignition engine?
• The higher combustion chamber wall temperature in compression ignition engines will __________ knocking tendency.
• The two stroke cycle engines have lighter flywheel.
• The scavenging efficiency of a four stroke cycle diesel engine is
• A diesel engine has compression ratio from
• The voltage required to produce a spark across the gap, between the sparking points is
• The nuclear radiators produced in a reactor which must be sheilded are
• In order to mix air and petrol in the required proportion and to supply it to the engine during suction stroke, then __________ is employed.