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Hindi Version of the Questions with Green background are available only
objective Ques (30 results)
11)

What are the disadvantage of solar energy

A)

A large surface area is required collect the solar

B)

Daily average of solar energy varies from 4 to 7 kwh/m2

C)

Highly hazardous toxic material is used in the manufacturing of solar device.

D)

All of the above are disadvantages.

12)

The temperature inside the solar cooker ranges from

A)

500-100°C

B)

100-140°C

C)

150-200°C

D)

70-80°C

13)

The use of reflector in the solar cooker is to

A)

Decrease efficiency

B)

create green house effect

C)

increase efficiency

D)

none of these

14)

Solar cells are made of

A)

germanium

B)

silicon

C)

silver

D)

aluminium

15)

The material used for interconnection the solar cells in the solar panel is

A)

silicon

B)

silver

C)

aluminium

D)

copper

16)

A solar panel is made by combining in an arrangement

A)

solar concentrator

B)

solar cookers

C)

solar cells

D)

solar chimney

17)

Tidal energy is a farm of energy obtained from the

A)

motion of surface water in ponds

B)

ocean in the form of tidal waves

C)

tides occurs in the river water

D)

motion of the wave in sea

18)

Tidal energy is harnessed by constructing a dam across

A)

narrow opening to the sea

B)

wide opening to the sea

C)

the river in hilly trains

D)

the river in plane areas

19)

Wave energy is caused due to

A)

strong winds blowing across the sea

B)

kinetic energy possessed by huge waves near the sea shore

C)

potential energy possessed by the stored water

D)

both (a) and (b)

20)

The working fluid in ocean thermal power plant is

A)

Volatile liquid like ammonia

B)

petrol

C)

charcoal

D)

liquified petroleum gas

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