Engineering :: Energy Conversion

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341.

Natural gas is obtained

A.	as by-product from blast furnace	B.	as by-product from petroleum refining
C.	from earth's surface usually along with crude	D.	from ammonia

342.

Osmotic energy conversion involves energy production from

A.	low boiling point liquids	B.	low vapour pressure liquids
C.	miscible liquids	D.	salt water

343.

Parr's classification of coal is based on

A.	proximate analysis	B.	ultimate analysis
C.	orsat analysis	D.	none of above

344.

Pea coal is

A.	anthracite coal, small in size	B.	same as peat
C.	low ash content lignite	D.	none of the above

345.

Pearlite is

A.	a low ash containing coal	B.	same as lignite
C.	an insulation material	D.	none of the above

346.

pF number refers to

A.	acidic/alkaline water	B.	energy with which water is held in the soil
C.	decomposition of molecules caused by the absorption of light	D.	smog produced by the action of sunlight on the pollutants

347.

A photovoltaic cell converts

A.	heat energy into mechanical energy	B.	chemical energy into electrical energy
C.	solar energy into electrical energy	D.	electrical energy into chemical energy

348.

Producer gas mainly contains

A.	carbon dioxide and steam	B.	carbon monoxide and nitrogen
C.	methane, ethane and butane	D.	hydrocarbons

349.

Pyrhelicometer measures

A.	intensity of direct solar radiation	B.	wind speed at an elevation
C.	fission caused by thermal reutrons	D.	total electromagnetic radiation cmitted by the sun

350.

Quad is a mesure of

A.	photosynthesis	B.	wind power
C.	radioactive decay	D.	energy