Q. In a four stroke cycle petrol engine, the pressure inside the engine cylinder during the suction stroke is __________ the atmospheric pressure.

View solution

Q. A diesel engine is __________ as compared to petrol engine, both running at rated load.

View solution

Q. Which one of the following event would reduce volumetric efficiency of a vertical compression ignition engine ?

View solution

Q. The pressure at the end of compression, in petrol engines, is approximately

View solution

Q. The sparking in a petrol engine increases pressure and temperature of the products of combustion, but the volume remains constant.

View solution

Q. The indicated mean effective pressure of an engine is obtained from the indicator diagram drawn with the help of an engine indicator.

View solution

Q. A fuel of cetane number 40 has the same ignition quality as a mixture of

View solution

Q. The two reference fuels used for cetane rating are

View solution

Q. In petrol engines, the delay period is of the order of

View solution

Q. The reflectivity of a reflector is defined as the fraction of neutrons entering the reflector which are returned to the core.

View solution

Q. A supercharger receives air from the atmosphere surrounding the engine, compresses it to a higher pressure and then feeds it into the inlet valve of the engine.

View solution

Q. Iso-octane (C8H18) has octane number of

View solution

Q. The brake power is always greater than indicated power.

View solution

Q. An ignition coil in the spark ignition engines supplies __________ voltage to the spark plug.

View solution

Q. The operation of forcing additional air under pressure into the engine cylinder is known as

View solution

Q. Which of the following statement is correct regarding normal cetaine?

View solution

Q. Enriched uranium is required as a fuel in a nuclear reactor, if light water is used as moderator and coolant, because light water has

View solution

Q. As compared to air standard cycle, in actual working, the effect of variation in specific heats is to

View solution

Q. The __________ engines can work on very lean mixture of fuel.

View solution

Q. The ignition quality of petrol is expressed by

View solution