Engineering :: Energy Conversion

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421.

Thermal storage of energy is possible in the form of

A.	sensible heat	B.	latent heat
C.	chemical reaction	D.	Any of the above

422.

The major disadvantage with solar cells for power generation is

A.	lack of availability	B.	large area requirement
C.	variable power	D.	high cost

423.

The maximum theoretical efficiencies of solar cells could be around

A.	99%	B.	60%
C.	48%	D.	1%

424.

The source of energy for satellite is

A.	battery	B.	solar cell
C.	cryogenic storage	D.	Any of the above

425.

Winds caused by greater solar heating of the earth's surface near the equator than near the northern or southern poles, are known as

A.	local winds	B.	equatorial winds
C.	planetary winds	D.	trade winds

426.

Local winds are caused by

A.	differential heating of land and water	B.	differential heating of plains and mountains
C.	any of the above

427.

Photovoltaic solar energy conversion system makes use of

A.	fuel cells	B.	solar cells
C.	solar ponds	D.	None of the above

428.

Solar cells are made of

A.	silicon	B.	germanium
C.	silver	D.	aluminium

429.

The voltage of a single solar cell is

A.	0.5 V	B.	1 V
C.	1.1 V	D.	2.1 V

430.

The output of a solar cell is of the order of

A.	0.1 W	B.	0.5 W
C.	1 W	D.	5 W