A gas engine has a swept volume ofcm3 and clearance volume ofcm3. Its volumetric efficiency is 0.and mechanical efficiency is 0.The volume of the mixture taken in per stroke is
The reference fuels for knock rating of spark ignition engines would include
Number of working strokes per min. for a four stroke cycle engine are __________ the speed of the engine in r.p.m.
Which of the following fuel has little tendency towards detonation ?
The advancing of spark timing in spark ignition engines will __________ knocking tendency.
The compression ignition engines are governed by
In qualitative governing, the quantity of fuel is varied to suit the load on the engine and the total charge of air is altered.
The method of determination of indicated power of a multi cylinder spark ignition engine is by the use of
A diesel engine, during suction stroke, draws
Which of the following fuel detonates readily ?
The __________ engines can work on very lean mixture of fuel.
The knocking tendency in compression ignition engines for a given fuel will be
The sensing element in the control system of nuclear reactors measure the __________ of the neutron flux in the reactor.
A two stroke cycle engine occupies larger floor area than a four stroke cycle engine.
The overall efficiency is defined as the ratio of the work obtained at the crankshaft in a given time to the energy supplied during the same time.
By higher octane number of spark ignition fuel, it is meant that the fuel has
The diesel engines are also known as __________ engines.
If the speed of the engine is increased, the indicated power will
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.
In a petrol engine, the fuel supplied to the engine cylinder is mixed with required quantity of air and the mixture is ignited with a
The knocking in spark ignition engines can be reduced by
The cetane number of diesel oil, generally available, is
The delay period in oil engines increases with increase in the speed of engine.
The function of a distributor in a coil ignition system of I.C. engines is
Theoretically, a four stroke cycle engine should develop __________ power as that of a two stroke cycle engine.
In a four stroke cycle petrol engine, , the compression
Anti-knock for compression ignition engines is
Theoretically, a four stroke cycle engine should develop __________ power as that of a two stroke cycle engine.
The ignition quality of petrol is expressed by
In a four stroke cycle engine, the sequence of operations is