EMGT 3113 EXAM QUESTIONS WITH
COMPLETE SOLUTIONS
Increases in the temperature of the earth due to the greenhouse effect
| | | | | | | | | | | |
over the last 50 years is least due to ________.
| | | | | | | | |
a. burning of oil by industry and utilities
| | | | | | |
b. flatulence by cows
| | |
c. addition of hot water to lakes by utilities
| | | | | | | |
d. clearing land for farming
| | | |
e. use of freons - CORRECT ANSWER✔✔-addition of hot water to lakes
| | | | | | | | | | | |
by utilities
|
A balloon is buoyed up with a force equal to the
| | | | | | | | | |
a. density of the surrounding air
| | | | |
b. atmospheric pressure
| |
c. weight of the balloon and its contents
| | | | | | |
d. weight of the air it displaces - CORRECT ANSWER✔✔-weight of the
| | | | | | | | | | | |
air it displaces
| |
CFC's in the stratosphere ________.
| | | |
a. provide protection from incoming solar radiation
| | | | | |
,b. dissipate within days
| | |
c. combine with NOX to produce smog
| | | | | |
d. adsorb ultraviolet light from the sun
| | | | | |
e. contribute to ozone destruction - CORRECT ANSWER✔✔-contribute
| | | | | | | |
to ozone destruction
| |
Ozone production via automobile emissions ________.
| | | | |
a. is usually associated with photochemical smog
| | | | | |
b. can help restore the ozone being depleted in the outer atmosphere
| | | | | | | | | | |
c. is eliminated by appropriate use of catalytic converters
| | | | | | | |
d. will provide overall worldwide reduction in skin cancer - CORRECT
| | | | | | | | | | |
ANSWER✔✔-is usually associated with photochemical smog | | | | |
Your largest personal contribution to global warming in a year comes
| | | | | | | | | | |
from ________. |
a. use of freon propellants
| | | |
b. use of air conditioners in your home
| | | | | | |
c. driving your car
| | |
d. cutting down trees
| | |
e. burning natural gas for home heating. - CORRECT ANSWER✔✔-
| | | | | | | | |
driving your car | |
, One of the major economic problems in less developed countries is
| | | | | | | | | | |
________.
a. deforestation
|
b. neglected use of solar energy
| | | | |
c. dependence upon imported oil
| | | |
d. increased emission of greenhouse gases. - CORRECT ANSWER✔✔-
| | | | | | | |
dependence upon imported oil | | |
One of the fundamentals of static electricity is that the force between
| | | | | | | | | | | |
two charges of like charge
| | | |
a. is attractive
| |
b. is repulsive
| |
c. is neutralized
| |
d. is zero - CORRECT ANSWER✔✔-is repulsive
| | | | | |
How much current is drawn by a 1500 W appliance operating at 120V?
| | | | | | | | | | | |
a. 2
| |
b. 8
| |
c. 12
| |
d. 15
| |
e. 24 amps - CORRECT ANSWER✔✔-12 (1500/120)
| | | | | |
COMPLETE SOLUTIONS
Increases in the temperature of the earth due to the greenhouse effect
| | | | | | | | | | | |
over the last 50 years is least due to ________.
| | | | | | | | |
a. burning of oil by industry and utilities
| | | | | | |
b. flatulence by cows
| | |
c. addition of hot water to lakes by utilities
| | | | | | | |
d. clearing land for farming
| | | |
e. use of freons - CORRECT ANSWER✔✔-addition of hot water to lakes
| | | | | | | | | | | |
by utilities
|
A balloon is buoyed up with a force equal to the
| | | | | | | | | |
a. density of the surrounding air
| | | | |
b. atmospheric pressure
| |
c. weight of the balloon and its contents
| | | | | | |
d. weight of the air it displaces - CORRECT ANSWER✔✔-weight of the
| | | | | | | | | | | |
air it displaces
| |
CFC's in the stratosphere ________.
| | | |
a. provide protection from incoming solar radiation
| | | | | |
,b. dissipate within days
| | |
c. combine with NOX to produce smog
| | | | | |
d. adsorb ultraviolet light from the sun
| | | | | |
e. contribute to ozone destruction - CORRECT ANSWER✔✔-contribute
| | | | | | | |
to ozone destruction
| |
Ozone production via automobile emissions ________.
| | | | |
a. is usually associated with photochemical smog
| | | | | |
b. can help restore the ozone being depleted in the outer atmosphere
| | | | | | | | | | |
c. is eliminated by appropriate use of catalytic converters
| | | | | | | |
d. will provide overall worldwide reduction in skin cancer - CORRECT
| | | | | | | | | | |
ANSWER✔✔-is usually associated with photochemical smog | | | | |
Your largest personal contribution to global warming in a year comes
| | | | | | | | | | |
from ________. |
a. use of freon propellants
| | | |
b. use of air conditioners in your home
| | | | | | |
c. driving your car
| | |
d. cutting down trees
| | |
e. burning natural gas for home heating. - CORRECT ANSWER✔✔-
| | | | | | | | |
driving your car | |
, One of the major economic problems in less developed countries is
| | | | | | | | | | |
________.
a. deforestation
|
b. neglected use of solar energy
| | | | |
c. dependence upon imported oil
| | | |
d. increased emission of greenhouse gases. - CORRECT ANSWER✔✔-
| | | | | | | |
dependence upon imported oil | | |
One of the fundamentals of static electricity is that the force between
| | | | | | | | | | | |
two charges of like charge
| | | |
a. is attractive
| |
b. is repulsive
| |
c. is neutralized
| |
d. is zero - CORRECT ANSWER✔✔-is repulsive
| | | | | |
How much current is drawn by a 1500 W appliance operating at 120V?
| | | | | | | | | | | |
a. 2
| |
b. 8
| |
c. 12
| |
d. 15
| |
e. 24 amps - CORRECT ANSWER✔✔-12 (1500/120)
| | | | | |
