Question 1

Identify examples of biofuels.Assess the feasibility and sustainability of using biofuels for power generation.

Accepted Answer

The answer of Identify examples of biofuels.Assess the feasibility and...

Question 2

Which of the following countries leads the world in nuclear power capacity?

Accepted Answer

A) Sweden 
B) France 
C) Canada 
D) United States 
E) Russia

Question 3

Use the accompanying figure to answer the following question.
-Between 1995 and 2000,_______________ .

Accepted Answer

A) bioenergy consumption increased rapidly 
B) oil consumption exceeded nuclear,hydropower,and biomass combined 
C) coal consumption decreased 
D) fossil fuel use stabilized 
E) there was a clear transition from nonrenewable toward renewable energy resources

Question 4

Biomass energy is derived from __________________

Accepted Answer

A) water 
B) the Earth's heat 
C) the sun 
D) organisms such as plants 
E) wind

Question 5

Compare the environmental effects of coal and uranium as power sources.

Accepted Answer

The answer of Compare the environmental effects of coal and...

Question 6

E -85 __________________

Accepted Answer

A) is an ethanol -gasoline mixture 
B) is an isotope of uranium used to generate electricity 
C) was an international summit of 85 nations that met to restrict greenhouse gas emissions 
D) was an international summit of 85 nations that met to determine vehicle fuel efficiency standards 
E) was an international summit of 85 nations that met to restrict CFC use

Question 7

Worldwide,the most widely used renewable energy source is ________________.

Accepted Answer

A) hydroelectric 
B) wind 
C) biomass 
D) nuclear 
E) solar

Question 8

Which of the following is a documented negative impact of hydroelectric dams?

Accepted Answer

A) alteration of river sediment deposition 
B) increased atmospheric CFCs 
C) alteration of river salinity 
D) decreased rainfall 
E) acid deposition

Question 9

Nuclear power plants in use today rely on __________________

Accepted Answer

A) fission reactions to generate heat to boil water to generate electricity 
B) fusion reactions to generate heat to boil water to generate electricity 
C) fusion reactions to directly generate electricity 
D) fusion reactions to create a flow of electrons to generate electricity 
E) fission reactions to directly generate electricity

Question 10

Explain the process of nuclear fusion,and describe its role in commercial power generation.

Accepted Answer

The answer of Explain the process of nuclear fusion,and describe...

Question 11

The run -of -river approach to hydropower often involves __________________

Accepted Answer

A) the purchase of state -run dams by major corporations 
B) the most expensive type of dams to build and maintain 
C) dams that are reliable but unsustainable 
D) impounding water in reservoirs behind concrete dams 
E) diversion of a portion of a river's flow through pipes

Question 12

Biofuels and nuclear power may prove useful __________________

Accepted Answer

A) as replacement fuels for motor vehicles 
B) as pollution -free sustainable energies 
C) as inexpensive technologies for developing nations 
D) to bridge the time between fossil fuel depletion and new renewables 
E) as stages in the development of fusion generators

Question 13

__________________ is/are the source of energy used in the production of electricity by nuclear power plants.

Accepted Answer

A) Natural gas 
B) Nuclear fusion 
C) Breeder reactions 
D) Nuclear fission 
E) Nuclear reactions

Question 14

One key advantage of hydropower is that __________________

Accepted Answer

A) it is the most economically feasible of all the renewable energy resources 
B) it produces no negative environmental effects 
C) it is the oldest of the renewable energy resources 
D) it does not rely on fossil fuel to generate electricity 
E) it is widely available throughout the world

Question 15

Compare the events at Three Mile Island,Chernobyl,and Fukushima Daiichi nuclear power plants.

Accepted Answer

The answer of Compare the events at Three Mile Island,Chernobyl,and...

Question 16

A self -amplifying reaction and a nuclear explosion in a nuclear power plant are prevented in large part by __________________

Accepted Answer

A) the production of plutonium -239 
B) fuel rods that absorb tremendous amounts of heat 
C) the regular addition of uranium -239 to the fuel 
D) control rods that absorb neutrons 
E) "sponges" that absorb liquefied uranium that leaks out of the reactor core

Question 17

Use the accompanying figure to answer the following question.
-What percentage of U.S.energy production is from renewable sources?

Accepted Answer

A) 9)8% 
B) 18.4% 
C) 2)4% 
D) 4)9% 
E) 7)4%

Question 18

Discuss the conventional alternatives to fossil fuels.Why are we not using more renewables?

Accepted Answer

The answer of Discuss the conventional alternatives to fossil fuels.Why...

Question 19

The Wild and Scenic Rivers Act of 1968 __________________

Accepted Answer

A) permits dams of no more than 10 feet in height to be built along a designated waterway 
B) is an agreement between the United States and Canada to protect rivers that cross the boundary between the two countries 
C) protects a designated waterway from being dammed 
D) no longer protects waterways because the act has been repealed to build more hydroelectric dams 
E) limits dams to no less than 5 miles apart

Question 20

Worldwide,the most widely used source of renewable energy for generating electricity is __________________

Accepted Answer

A) solar 
B) hydroelectric 
C) nuclear 
D) wind 
E) biomass

Exam 20: Conventional Energy Alternatives