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Mechanical Engineering Objective Questions { Power Plant Engineering }



225. Steam admission pressure remains constant in following governing system of steam engine
A.Throttle governed steam engine
B.Cut-off governed steam engine
C.Hit and miss governed engine
D.All of the above
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226. All steam engines work on
A.Principle of conservation of energy
B.Second law of thermodynamics.
C.Zeroth law of thermodynamics
D.First law of thermodynamics
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227. The expansion process in the steam engines is
A.Isentropic
B.Not truly hyperbolic.
C.Adiabatic at constant volume
D.Hyperbolic
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228. In a tandem compound steam engine
A.One high and one low pressure-cylinder are set side by side, driving - the same shaft, cranks being set 90° apart
B.Two cylinders are centred on the same piston rod, the 1.p. cylinder being placed nearest the crankshaft
C.Two cylinders are set at 90° usually to save floor space
D.Two cylinders are set in V-arrangement
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229. Cut off point remains unaltered in following governing system of steam engine
A.Throttle-governed steam engine
B.Cut-off governed steam engine
C.Hit and miss governed engine
D.All of the above
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230. Which is varied in throttle governing in steam engine
A.Pressure of intake steam
B.Volume of intake steam
C.Temperature of intake steam
D.Dryness fraction
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231. Which is varied in cut off governing in steam engine
A.Pressure of intake steam -
B.Volume of intake steam
C.Temperature of intake steam
D.Dryness fraction
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