Question paper-Sardar Krushinagar Dantiwada Agricultural Uiversity 2010 Other Bachelor's Degree of Renewable Eneregy & Enviornmental Engineering

Multiple Choice Questions

(For Competitive Exam)

Renewable Eneregy & Enviornmental Engineering

1.      _________can be used as a buffer to keep the pH approximately constant.

a.       Planting trees around the lake

b.      Building dams to increase the water level

c.       Add limestone to the lake

d.      Ban all boating

2.      Countries refusing to sign the International Air Quality Accord are __.

a.       Russia, Poland and England

b.      Canada, Poland and England

c.       United States, Canada and England

d.      United States, England and Poland

3.      Lakes at this pH are deceptively pure and blue but only support certain types of algae

a.       7.0

b.      5.6

c.       4.0

d.      1.2

4.      Which of the following does not describe acid deposition?

a.       acid fog

b.      dry fallout

c.       acid rain

d.      buffers

5.      This occurs when metals in rocks are attacked by acid rain and dissolved into water.

a.       metal mobilization

b.      metal anomaly

c.       placer deposits

d.      slurry

6.      _________is a pale blue poisonous gas formed from oxygen atoms

a.       Carbon dioxide

b.      CFCs

c.       Ozone

d.      UV

7.      About --% of the earths ozone exists at ground level.

a.       10

b.      30

c.       70

d.      90

8.      Ultraviolet radiation is __

a.       part of the natural radiation from sunlight

b.      man made source of energy, polluting the atmosphere.

c.       a by product of generating electrical energy

d.      produced by the CFCs in the air.

9.      Plants and animals are damaged (sometimes killed) by increased exposure to __.

a.       ultraviolet rays

b.      visible light from the sun

c.       CFCs in the atmosphere

d.      oxygen

10.  Swirling winds over the Antarctic are called __.

a.       Antarctic winds

b.      Antarctic blizzard

c.       Ozone hole

d.      Polar vortex

11.  __ are first developed as coolants for refrigerators and air conditioners

a.       carbon tetrachloride

b.      chlorofluorocarbons

c.       hydrofluorocarbons

d.      ozone

12.  __ is our skins natural way of protecting itself from harmful UV Radiation.

a.       UV screen block creams

b.      skin shedding

c.       hair

d.      sun tan

13.  An international agreement signed by 33 countries to phase out use of CFCs is _______.

a.       CFC treaty

b.      Montreal Protocol

c.       30 percent protocol

d.      international clean air treaty

14.  ___ is a substitute for CFCs

a.       carbon tetrachloride

b.      chlorofluorocarbons

c.       hydrofluorocarbons

d.      ozone

15.  Although HCFCs and HFCs replace CFCs and reduce damage to ozone, they are problematic in that they __.

a.       are poisonous

b.      contribute to global warming

c.       damage equipment quickly

d.      use up oxygen

16.  __ is a natural warming process involving the interaction of sunlight and carbon dioxide and other gases from the atmosphere.

a.       global warming

b.      greenhouse effect

c.       infrared radiation

d.      solar radiation

17.  During the last ice age the average global temperature was __ degrees celsius below the average temperature today

a.       2

b.      4

c.       8

d.      10

18.  Three common greenhouse gases include

a.       oxygen, ozone, methane

b.      methane, nitrous oxides, sulphur dioxide

c.       carbon dioxide, methane, ozone

d.      carbon dioxide, methane, nitrous oxide

19.  __ is heat energy from the sun.

a.       carbon dioxide

b.      infrared radiation

c.       solar radiation

d.      ultraviolet radiation

20.  If global warming continues for the next century, increases in water levels will displace __ people.

a.       Thousands

b.      Millions

c.       20 million

d.      1 billion