A) the size and weight of the fuel cell is prohibitive for use in automobiles.
B) fuel cells are expensive.
C) hydrogen is extremely volatile so safety issues must be addressed.
D) infrastructure for refueling is not in place.
E) the ability of the fuel cell to store more than a fixed amount of energy.
Correct Answer
verified
Correct Answer
verified
A) sugar cane : alcohol
B) oil used to make French fries : biodiesel
C) clay : biogas
D) manure : methane
E) wood : charcoal
Correct Answer
verified
Correct Answer
verified
A) solar
B) subsurface coal mining
C) photovoltaic cell
D) geysers
E) volcanism
Correct Answer
verified
Correct Answer
verified
A) the sun's energy,collected by solar panels,to generate electricity
B) plant and animal material as fuel to generate heat
C) sun's energy to heat building without pumps or fans to distribute the heat
D) recycled water to cool the nuclear reactor in power plants
E) solar-generated hydrogen to produce water and heat
Correct Answer
verified
Correct Answer
verified
Correct Answer
verified
Biomass is plant and animal material use...View Answer
Correct Answer
verified
View Answer
A) hydropower
B) solar thermal
C) nuclear power
D) photovoltaics
E) coal
Correct Answer
verified
Correct Answer
verified
A) windmills kill birds.
B) generation of sulfur dioxide,carbon dioxide,and nitrogen oxides.
C) degradation of an area's scenic beauty.
D) tying up large parcels of land.
E) distance to urban centers where electricity is most needed.
Correct Answer
verified
Correct Answer
verified
A) charcoal
B) hydrogen
C) wood
D) animal dung
E) peat
Correct Answer
verified
Correct Answer
verified
A) replace the existing insulation with a higher quality product.
B) board up windows on the north,east and west sides of the house.
C) install a gas-burning fireplace in the family room.
D) pour a concrete foundation between the ground and subfloor of the home
E) dial down the water heater's thermostat to knock 3-5 percent off your energy bill
Correct Answer
verified
Correct Answer
verified
A) the manufacturing process requires toxic industrial chemicals.
B) the amount of land needed to hold the number of solar panels required for large-scale use.
C) each panel's low efficiency at converting solar energy to electricity.
D) the steadily increasing manufacturing cost per watt over the last 35 years.
E) the carbon dioxide emissions that contribute to greenhouse gases.
Correct Answer
verified
Correct Answer
verified
A) the accompanying tidal waves cause too much environmental destruction.
B) the equipment required to harness this energy is not yet
C) few areas have large enough differences in water level between high and low tides to make power generation feasible.
D) sand damages the equipment
E) tidal energy can become a significant resource worldwide.
Correct Answer
verified
Correct Answer
verified
Correct Answer
verified
The National Appliance Energy Conservati...View Answer
Correct Answer
verified
View Answer
A) a Solar Standard Achievement Award.
B) a U.S.Green Building grant.
C) Leadership in Energy and Environmental Design (LEED) certification.
D) an "A" low-toxicity compliance rating.
E) the Energy Star qualified building designation.
Correct Answer
verified
Correct Answer
verified
A) nonrenewable materials.
B) liquid chemicals.
C) greenhouse gases.
D) soil and water.
E) organic material from plants and animals.
Correct Answer
verified
Correct Answer
verified
A) sets national energy efficiency standards for refrigerators,washing machines,ovens and other appliances.
B) mandates the recycling of "waste" heat in all domestic devices such as refrigerators,freezers,and microwaves.
C) offers rebates to homeowners who install renewable energy sources such as solar panels in their homes.
D) changes the regulations that govern electric utilities allowing these companies to make more money by generating less electricity.
E) provides for infrastructure improvement of electric grids to recover 10 percent of electricity lost during transmission.
Correct Answer
verified
Correct Answer
verified
A) to run automobiles
B) to power cell phones
C) to replace nuclear technology
D) to lessen dependence on fossil fuels
E) to run city buses
Correct Answer
verified
Correct Answer
verified
A) tapping into fossil fuel reserves
B) revert to using only biomass fuels
C) federal economic stimulus money to purchase newer cars
D) conservation and increased efficiency
E) deciding on one renewable resource for investment and development
Correct Answer
verified
Correct Answer
verified
A) tidal energy
B) geothermal energy
C) photovoltaics
D) nuclear power
E) fossil fuels
Correct Answer
verified
Correct Answer
verified
A) installing energy efficient central cooling and heating systems.
B) positioning window overhangs to shade in summer while allowing winter sun to penetrate the building.
C) removing insulation from walls and attic.
D) replacing decorative lawns with drought tolerant landscaping.
E) painting the building a light color in the summer and a dark color in the winter.
Correct Answer
verified
Correct Answer
verified
A) homeowners receive meter credit for excess energy they generate and supply to the utility's power grid
B) the up front costs for installing renewable energy is recovered by rewinding the home's electric meter
C) if a homeowner uses less energy in one month than the previous month,then the difference is subtracted from the electric meter
D) homeowners who voluntarily cut back on air conditioning use are granted a electric credit
E) a radio controlled electric meter for remote monitoring allows the utility company to stop the meter during peak demand periods
Correct Answer
verified
Correct Answer
verified
Showing 21 - 40 of 43
Related Exams