When sunlight strikes a solar cell, light of certain wavelength will knock out electrons from semiconductor, thereby producing electric current

When sunlight strikes a solar cell, light of certain wavelength will knock out electrons from semiconductor, thereby producing electric current A...

Which of the following is not used for passive heating and cooling of homes?

Which of the following is not used for passive heating and cooling of homes? Answer: heat exchang...

Which of the following is not true about solar trough (distributed collector)?

Which of the following is not true about solar trough (distributed collector)? Answer: boiler is used to generate steam ...

Ventilation utilizes radiative heat transfer to promote passive cooling

Ventilation utilizes radiative heat transfer to promote passive cooling Answer: fal...

Presently, solar cells have efficiency of about

Presently, solar cells have efficiency of about Answer: 15-2...

Electricity produced from a solar power plant can be used to meet peak load power requirements

Electricity produced from a solar power plant can be used to meet peak load power requirements Answer: tr...

Passive solar design takes advantage of bricks, stones and dark tiles inside the house to absorb and trap heat

Passive solar design takes advantage of bricks, stones and dark tiles inside the house to absorb and trap heat Answer: true ...

Which of the following is not a passive solar design for residential heating

Which of the following is not a passive solar design for residential heating Answer: using fans or pumps to create he...

The US is the largest producer of hydroelectric energy

The US is the largest producer of hydroelectric energy Answer: fal...

Which type of hydroelectric facility is a conventional dam?

Which type of hydroelectric facility is a conventional dam? Answer: impoundme...

Approximately what percentage of US energy is hydroelectric?

Approximately what percentage of US energy is hydroelectric? Answer: 1...

Tidal power can be easily harnessed anywhere there is a tide.

Tidal power can be easily harnessed anywhere there is a tide. Answer: fal...

Hydroeletric energy pollutes the atmosphere.

Hydroeletric energy pollutes the atmosphere. Answer: fal...

Pumped storage is non-renewable.

Pumped storage is non-renewable. Answer: false ...

Hydroelectric schemes are an obstacle to fish migration

Hydroelectric schemes are an obstacle to fish migration Answer: tr...

Which is not an advantage of hydropower?

Which is not an advantage of hydropower? Answer: nonaltering to habit...

A penstock carries water to a turbine.

A penstock carries water to a turbine. Answer: tr...

What type of energy does water stored behind a dam have?

What type of energy does water stored behind a dam have? Answer: potential ener...

What is the hydrologic cycle driven by?

What is the hydrologic cycle driven by? Answer: solar ener...

Recreation is the main purpose of US dams

Recreation is the main purpose of US dams Answer: tr...

Tides are caused by gravitational force between sun and Earth

Tides are caused by gravitational force between sun and Earth Answer: fal...

Which of the following is a disadvantage of hydropower?

Which of the following is a disadvantage of hydropower? A) catastrophic failure B) disruption of natural flow C) alter habitat Answer: A...

Where is Three Gorges dam located?

Where is Three Gorges dam located? Answer: Chi...

Which form of hydro power accesses previously used energy?

Which form of hydro power accesses previously used energy? Answer: pumped stora...

In the US, we have adequate amount of land to cultivate biomass to meet all our energy demands.

In the US, we have adequate amount of land to cultivate biomass to meet all our energy demands. Answer: fal...

Waste to energy plants require removal of all toxic vapors using flue gas scrubbing to prevent air pollution.

Waste to energy plants require removal of all toxic vapors using flue gas scrubbing to prevent air pollution. Answer: tr...

In a waste to energy plant, significant amounts of ash are produced.

In a waste to energy plant, significant amounts of ash are produced. Answer: tr...

Which of the following is an energy recovery methodology adopted to process municipal solid waste?

Which of the following is an energy recovery methodology adopted to process municipal solid waste? A) Landfill gas recovery B) Combustion and cogeneration C)...

The amount of municipal waste generated per day is decreasing everyday.

The amount of municipal waste generated per day is decreasing everyday. Answer: fal...

Which of the following contributes the most towards Municipal solid waste?

Which of the following contributes the most towards Municipal solid waste? Answer: paper and paper boa...

Which of the following is not true about biodiesel?

Which of the following is not true about biodiesel? Answer: low NOx emissio...

Amount of CO and particulate matter emissions from biodiesel is less compared to petroleum diesel.

Amount of CO and particulate matter emissions from biodiesel is less compared to petroleum diesel. Answer: tr...

Energy per gallon produced by biodiesel is less than petroleum based diesel by

Energy per gallon produced by biodiesel is less than petroleum based diesel by Answer: ...

Amount of NOx emission from biodiesel is negligible.

Amount of NOx emission from biodiesel is negligible. Answer: fal...

Most of the bioethanol produced in United States comes from

Most of the bioethanol produced in United States comes from Answer: Io...

The production of ethanol and biodiesel in United States is increasing.

The production of ethanol and biodiesel in United States is increasing. Answer: true ...

Addition of ethanol to gasoline reduces the amount of emissions from the fuel.

Addition of ethanol to gasoline reduces the amount of emissions from the fuel. Answer: tr...

Which of the following cannot be converted into alcohol or biogas by biological conversion.

Which of the following cannot be converted into alcohol or biogas by biological conversion. Answer: heating val...

Ethanol has a higher octane number than gasoline.

Ethanol has a higher octane number than gasoline. Answer: tr...

Ethanol has a higher heating value than gasoline.

Ethanol has a higher heating value than gasoline. Answer: fal...

Presently, the amount of ethanol produced from biomass amounts to

Presently, the amount of ethanol produced from biomass amounts to Answer: 14 billion gallo...

Production of bioethanol from corn is more efficient than from sugarcane.

Production of bioethanol from corn is more efficient than from sugarcane. Answer: fal...

Corn can be used to produce ethanol.

Corn can be used to produce ethanol. Answer: tr...

Transesterification is the process used to convert vegetable oil to biodiesel.

Transesterification is the process used to convert vegetable oil to biodiesel. Answer: true ...

Which of the following is a product of thermal conversion of biomass?

Which of the following is a product of thermal conversion of biomass? Answer: syng...

Syngas can be produced from biomass by reaction with steam.

Syngas can be produced from biomass by reaction with steam. Answer: tr...

Pyrolysis is the process of heating biomass in the absence of air.

Pyrolysis is the process of heating biomass in the absence of air. Answer: tr...

Which of the following cannot be converted into alcohol or biogas by biological conversion.

Which of the following cannot be converted into alcohol or biogas by biological conversion. Answer: microalgae ...

Bagasse is an agricultural waste product obtained from sugarcane.

Bagasse is an agricultural waste product obtained from sugarcane. Answer: tr...

The United States produces most of its bioethanol from sugarcane.

The United States produces most of its bioethanol from sugarcane. Answer: fal...

Switch grass is a good source of biomass because

Switch grass is a good source of biomass because A) it grows quickly B) it has low moisture content C) does not require fertilizers or pesticide...

Potential biomass crops should not

Potential biomass crops should not Answer: need high maintenan...

The amount of power generated from biomass power plants in the United States is

The amount of power generated from biomass power plants in the United States is Answer: 7000 ...

Biomass has gross calorific value higher than coal.

Biomass has gross calorific value higher than coal. Answer: fal...

Which among the following variable is/are used for biomass classification?

Which among the following variable is/are used for biomass classification? A) Moisture content B) Silica content C) Calorific value Answer:&nb...

The amount of ash content is an important parameter in determining the quality of biomass fuel.

The amount of ash content is an important parameter in determining the quality of biomass fuel. Answer: tr...

High heating value or gross calorific value is the amount of energy released by complete combustion of 1 lb of fuel.

High heating value or gross calorific value is the amount of energy released by complete combustion of 1 lb of fuel. Answer: tr...

Which of the following is not an advantage of biomass energy?

Which of the following is not an advantage of biomass energy? Answer: no NOx emissio...

An ideal biomass cycle does not produce any net carbon emissions.

An ideal biomass cycle does not produce any net carbon emissions. Answer: tr...

United States is the larges producer of energy from biomass consumption.

United States is the larges producer of energy from biomass consumption. Answer: fal...

Biomass can be used to meet which energy demands?

Biomass can be used to meet which energy demands? A) Electricity B) Heat C) Transportation fuels Answer: A...

Which of the following is an energy crop?

Which of the following is an energy crop? A) Poplars B) Willows C) Switchgrass Answer: A...

Energy crops are cultivated primarily for biomass production.

Energy crops are cultivated primarily for biomass production. Answer: tr...

Which of the following is an example of biomass derived from agricultural residue?

Which of the following is an example of biomass derived from agricultural residue? Answer: bagas...

She demonstrated her ____ when donating half of her salary to her favorite charity.

She demonstrated her ____ when donating half of her salary to her favorite charity. Answer: Magnanimi...

The cafe was a favorite gathering place for ____ in the 1950s-1960s.

The cafe was a favorite gathering place for ____ in the 1950s-1960s. Answer: Beatn...

The ____ rhythms in Mozart's pieces are an interesting contrast the longer melodies in his music.

The ____ rhythms in Mozart's pieces are an interesting contrast the longer melodies in his music. Answer: Stacca...

My ____ studies began at the early age of four years, when I memorized all the bird books in the house.

My ____ studies began at the early age of four years, when I memorized all the bird books in the house. Answer: Ornithologic...

The tabloid article about Kim Kardashian's and Harry Potter's newborn baby was clearly _____, for too many reasons to include here.

The tabloid article about Kim Kardashian's and Harry Potter's newborn baby was clearly _____, for too many reasons to include here. Answer: ...