Energy Efficiency and Conservation

To save energy you should: (check 2)

• Take a cooler shower

• Take a warmer shower

• Take a shorter shower

• Take a longer shower

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NGSS.MS-PS3-3

NGSS.MS-ESS3-3

To save energy we should:

• use energy-saving bulbs

• Use larger tv's

• Avoid turning lights on and off

• Keep the TV on

Tags

NGSS.MS-ESS3-3

Which of these is an effective way to improve energy efficiency for heating/cooling?

• Using portable heaters as well as air conditioning

• Opening doors and windows when heating is on

• Dressing for the seasons: heavier in winter and lighter in summer

• Keeping the thermostat at the same temperature all year

Tags

NGSS.MS-PS3-3

NGSS.MS-ESS3-3

It is very cool outside an you feel very hot inside, what should you do?

• Turn on the air- conditioner

• Open the windows

• Turn on the air conditioner and open the windows

• Go out for a walk

Tags

NGSS.MS-PS3-3

When you leave a room, what should you do? (to save energy)

• Do nothing

• Clean the room

• Turn off the lights only

• Turn off the electrical appliances inside

Tags

NGSS.MS-ESS3-3

What are some things you can do to conserve energy and help protect our environment?

• leave water on, leave TV on, run dishwasher with 1 plate

• run the washing machine with 1 shirt

• leave the refrigerator door open

• turn off water, turn off lights, turn off TV

Tags

NGSS.MS-ESS3-3

Which of the following is not a benefit of cogeneration

• Increased efficiency of energy conversion and use
• Reduced greenhouse gas emissions
• Reduced power factor
• Reduced transmission losses

Tags

NGSS.MS-PS3-3

Cogeneration is the simultaneous generation of

• Heat and power
• Mechanical energy and power
• Steam and condensate
• All of the above

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

What is an important advantage of closed-cycle gas turbine cogeneration systems?

• Working fluid remains clean and it does not cause corrosion or erosion
• Low capital costs
• High pressure of produced steam
• High temperature of produced steam

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

The cogeneration system which has a high overall efficiency is the

• Gas turbine
• Back pressure steam turbine
• Reciprocating engine
• Combined cycle

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

NGSS.MS-ETS1-3