Energy Resources (CBSE-NET (UGC) Environmental Science (Paper-II & Paper-III)): Questions 12 - 16 of 34

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Question number: 12

» Energy Resources » Exploitation of Solar Energy

Appeared in Year: 2015

MCQ▾

Question

A solar cell of area 10cm×10cm produces a voltage of 0.6 V and a current up to 2 A. If solar insolation is 1000Wm2 , the efficiency of the solar cell is: (June)

Choices

Choice (4) Response

a.

12%

b.

25%

c.

24%

d.

15%

Question number: 13

» Energy Resources » Tidal Energy

Appeared in Year: 2015

MCQ▾

Question

A tidal estuary of tidal range 2 m has trapped water area 5000m2. If g=9.8ms2, the maximum energy available per tidal cycle is: (June)

Choices

Choice (4) Response

a.

2.25 kW

b.

19.6 kW

c.

9.8 kW

d.

98 kW

Question number: 14

» Energy Resources » Wind and Geothermal Energy

Appeared in Year: 2015

MCQ▾

Question

Wind mills are most suited for:

(I) Deserts (II) Offshore

(III) High altitude (IV) Roof tops

Choose the correct answer: (June)

Choices

Choice (4) Response

a.

(I) and (III) only

b.

(II), (III) and (IV) only

c.

(I) and (II) only

d.

(II) and (III) only

Question number: 15

» Energy Resources » Nuclear Energy - Fission and Fusion

Appeared in Year: 2015

MCQ▾

Question

Fast neutrons produced in nuclear fission reactions involving 235U have average energy of the order of: (June)

Choices

Choice (4) Response

a.

100 MeV

b.

2 MeV

c.

5 MeV

d.

200 MeV

Question number: 16

» Energy Resources » Air and Thermal Pollution

Appeared in Year: 2015

MCQ▾

Question

Which of the following is the major source of mercury pollution in India? – (June)

Choices

Choice (4) Response

a.

Pesticides manufacturing

b.

Coal based thermal power plants

c.

Dental amalgam fillings

d.

Electrical and electronic gadgets

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