IC Engines and Nuclear Power Plants Questions

• In petrol engines, using a fixed octane rating fuel, the increase in engine speed will decrease the knocking tendency.
• In a four stroke cycle diesel engine, the inlet valve
• Special reactors, called breeder reactors, supply a net gain of fissionable material.
• Which one of the following engines will have heavier flywheel than the remaining ones?
• Materials which make good moderators do not make good reflectors.
• The cetane number of diesel oil, generally available, is
• The octane number of petrol, generally available, is
• The air standard efficiency ofan I.C. engine is given by (where r = Compression ratio, and γ = Ratio of specific heats)
• In a four stroke cycle diesel engine, the compression
• The ratio of the work obtained at the crankshaft in a given time to the energy supplied during the same time is called
• Plutonium (Pu239) is produced
• The thermal efficiency of petrol and gas engines is about
• A fission chain reaction in uranium can be developed
• The normal heptane (C7H16) is given a rating of __________ octane number.
• The knocking in diesel engines may be prevented by
• Detonation is harmful due to
• A long delay period in compression ignition engines gives a more rapid rise in pressure which causes knocking.
• The volumetric efficiency ofa well designed engine may be
• The brake power is the power available
• Which of the following statement is correct regarding the features of a Breeder reactor?