Related Questions

The area of actual indicator diagram on an air compressor as compared to area of ideal indicator diagram is
A Less
B More
C Same
D More/less depending on compressor capacity
Besides mean effective pressure, the data required to determine the indicated power of an engine include
A Piston diameter, length of stroke and calorific value of fuel
B Piston diameter, specific fuel consumption and Calorific value of fuel
C Piston diameter, length of stroke and speed of rotation
D Specific fuel consumption, speed of rotation and torque
If the spark plug deposit indicates black coating of soot, it indicates that the engine has been generally operating on
A Too lean mixture
B Stoichiometric mixture
C Most economical mixture
D Too rich mixture
In a compound steam engine, the first stage of expansion is carried out in a high pressure cylinder whereas the last expansion is completed in low pressure cylinder. The diameter of high pressure cylinder is _________ the low pressure cylinder.
A Equal to
B Less than
C More than
D None of these
In a four stroke cycle petrol engine, the pressure inside the engine cylinder during the suction stroke is __________ the atmospheric pressure.
A equal to
B below
C above
D middle
The theoretical indicator diagram of a simple steam engine is based upon the assumption that
A There is no pressure drop due to condensation
B Steam is admitted at boiler pressure and exhausted at condenser pressure
C The expansion (or compression) of the steam is hyperbolic
D All of the above
An engine indicator is used to determine the following
A Speed
B Temperature
C Volume of cylinder
D m.e.p. and I.H.P.
An engine pulls four identical carriages. The engine is 2/3 the length of a carriage and the total length of the train is 86.8m. Find the length of the engine.
A 12.4m
B 12m
C 11.5m
D 13m
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
If the engine coolant leaks into the engine oil, then engine oil
A Appears milky
B Become foamy
C Turns black
D None of these

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