Energy efficiency and conservation

Question 1 of 10

Insulating a building reduces

Question 2 of 10

An energy-efficient refrigerator has

Question 3 of 10

Efficiency of a motor that converts 800 J of 1,000 J input into useful work is

Question 4 of 10

Replacing filament bulbs with LED bulbs saves energy because LEDs

Question 5 of 10

A solar water heater costs GH¢3,000 and saves GH¢500 a year in electricity. What is the payback period?

Question 6 of 10

A survey of how and where a building uses energy, to find savings, is an

Question 7 of 10

Switching off appliances at the socket saves

Question 8 of 10

LED bulbs are more energy-efficient than incandescent bulbs because they

Question 9 of 10

Replacing ten 60 W bulbs with 9 W LEDs used 5 hours a day saves how much energy per day?

Question 10 of 10

An energy audit identifies