Related Questions

The ratio of the work obtained at the crankshaft in a given time to the energy supplied during the same time is called
A Mechanical efficiency
B Overall efficiency
C Indicated thermal efficiency
D Volumetric efficiency
For the same length of stroke and speed of crankshaft, the piston speed for a double acting steam engine is _________ the piston speed of single acting steam engine.
A Equal to
B Twice
C Three times
D Four times
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
A Fuel pump
B Fuel injector
C Spark plug
D None of these
A two stroke cycle engine gives ________ the number of power strokes as compared to the four stroke cycle engine, at the same engine speed.
A Half
B Same
C Double
D Four times
A flywheel is fitted to the crankshaft of an engine having W as the amount of indicated work per revolution and permissible limits of coefficient of fluctuation of energy and speed as CE and CS respectively. The kinetic energy of the flywheel is given by
A 2WCE/CS
B WCE/2CS
C WCE/CS
D WCS/2CE
The crankshaft of a typical inline four cylinder engine has ________ balance weights.
A 12
B 4
C 16
D 8
In a four stroke engine for each crankshaft revolution, the camshaft revolves
A One half turn
B One turn
C Two turns
D Four turns
The working cycle in case of four stroke engine is completed in following number of revolutions of crankshaft
A $$\frac{1}{2}$$
B 1
C 2
D 4
The output power of a transistor amplifier is more than the input power because the additional power is supplied by ___________
A Transistor
B Biasing circuit
C Collector supply VCC
D None of the above
The actual power generated in the engine cylinder is called
A Indicated power
B Brake power
C Frictional power
D None of these

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