CBSE-NET (Based on NTA-UGC) Environmental Science (Paper-II): Questions 333 - 338 of 385

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Question number: 333

» Environmental Awareness » Waste Disposal, Recycling and Power Generation

Appeared in Year: 2011

MCQ▾

Question

Fuel cells are devices that generate electricity by converting the energy released by – (December)

Choices

Choice (4) Response

a.

Biochemical reactions involving combustion process

b.

Electrochemical reactions without going through combustion process.

c.

Biochemical reactions without going through combustion process.

d.

Electrochemical reactions involving combustion process

Question number: 334

» Noise » Noise Exposure Levels and Standards

Appeared in Year: 2011

MCQ▾

Question

The sound power from a voice shouting is 0.001 Watt. The sound level in dB is – (December)

Choices

Choice (4) Response

a.

120 dB

b.

90 dB

c.

30 dB

d.

60 dB

Question number: 335

» Basics of Environmental Geosciences » Earth Systems and Biosphere » Lithosphere, Hydrosphere, Atmosphere and Biosphere

Appeared in Year: 2013

MCQ▾

Question

Mesoscale Meteorological Phenomena occur over areas of horizontal distance in the range (km) (December)

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 336

» Basics of Environmental Geosciences » Mineral Resources and Environment » Processing and Smelting of Minerals

MCQ▾

Question

Formation of marble can be represented by – (December)

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 337

» Basics of Environmental Geosciences » Remote Sensing » Principles of Remote Sensing

Appeared in Year: 2011

MCQ▾

Question

Given below are scales of four topographic maps. Maps of which scale will have more clarity? – (December)

Choices

Choice (4) Response

a.

1: 25,000

b.

1: 250,000

c.

1: 50,000

d.

1: 1,000,000

Question number: 338

» Statistical Analysis » Arithmetic, Geometric and Harmonic Means

Appeared in Year: 2011

MCQ▾

Question

For any finite set of positive numbers, which is the correct relationship involving Harmonic Mean (HM), Geometric Mean (GM) and Arithmetic Mean (AM)? – (December)

Choices

Choice (4) Response

a.

AM ≤ GM ≤ HM

b.

HM ≤ GM ≤ AM

c.

GM ≤ HM ≤ AM

d.

AM ≤ HM ≤ GM

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