Engineering :: Heat Engines

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241.

Rank of coal is based on

A.	Fixed carbon and heating value	B.	Ash content
C.	Ash and moisture content	D.	Size
E.	None of the above

242.

Tidal power is the power generated from

A.	Waves of the ocean	B.	Rise and fall tides
C.	Thermal energy of ocean water	D.	Raw sea water
E.	Chemicals in sea water

243.

Thermionic converters are based on

A.	Seebeck effect	B.	Microwave theory
C.	Energy contained in thermal conductors	D.	Transfer of electrons
E.	None of the above

244.

Load curve is the plot of

A.	Load versus generatng capacity	B.	Load versus current
C.	Load versus time	D.	Load versus cost of power
E.	None of the above

245.

In power station practice 'spinning reserve' is

A.	Reserve generating capacity that is in operation but in service	B.	Reserve generating capacity that is connected to bus and ready to take load
C.	Reserve generating capacity that is available for service but not in operation	D.	Capacity of the part of plant that remains under maintenance

246.

Which one of the following is not a constituent of coal

247.

Of the calorific value ranges given below which one is generally for coal?

248.

Bagasse is

A.	A variety of coal	B.	A fuel consisting of wood etc
C.	Fibrous portion of sugarcane left after extracting the juice	D.	A kind of rice straw
E.	Same as biogas

249.

Which one of the following statements is incorrect:

A.	Combustion is the processes of heat liberation	B.	Combustion is a chemical reaction
C.	Combustion is rapid oxidation	D.	All of the above
E.	None of the above

250.

Which one of the following symptoms will not show that combustion is becessary complete.

A.	Presence of free carbon in exhaust	B.	Presence of carbon monoxide in exhaust
C.	Presence of oxygen in exhaust	D.	Presence of nitrogen in exhaust
E.	All of the above