Q. The ratio of the volume of charge admitted at N.T.P. to the swept volume of the piston is called

View solution

Q. The exhaust valve in a four stroke cycle petrol engine

View solution

Q. Nuclear reactors are used

View solution

Q. A moderator generally used in nuclear power plants is

View solution

Q. The predominent isotope of the naturally occuring element is

View solution

Q. The detonating tendency in petrol engines increases with increase of compression ratio.

View solution

Q. Each fission of U235 produces on the average __________ fast neutrons as a product of reaction.

View solution

Q. Reactors for propulsion applications are designed for

View solution

Q. The primary fuel used in nuclear power plants is

View solution

Q. In petrol engine, using a fixed octane rating fuel and fixed compression ratio, supercharging will __________ the knocking tendency.

View solution

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

View solution

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

View solution

Q. 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.

View solution

Q. The cetane (C16H34) which is a straight chain paraffin is assigned a cetane number of

View solution

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

View solution

Q. The correct mixture strength (by weight) for petrol is about

View solution

Q. The working pressure and temperature inside the cylinder of an internal combustion engine is __________ as compared to a steam engine.

View solution

Q. The scavenging efficiency of a four stroke cycle diesel engine is

View solution

Q. The voltage required to produce a spark across the gap, between the sparking points is

View solution

Q. The control rods in the control system of nuclear reactors are used to

View solution