Question

21. Orienting a building with respect to the sun can save ______ of heating and cooling costs.

c. 30 - 40 percent

d. 50 - 60 percent

b. 5 - 10 percent

a. 1 - 2 percent

22. In passive solar design, windows should be minimized on the ______ side of a building.

c. front

b. south

d. back

a. west

23. Native species are preferred because they require little to no ______ once established.

c. Sunlight

d. Mulching

b. Irrigation

a. Pruning

24. Tankless water heaters save energy by eliminating ______.

d. volume of required space

a. excess demand

b. standing heat loss

c. wasted water

25. One way to eliminate materials used in a dropped ceiling is to use an _____ ceiling.

c. Exposed

a. Architectural

d. elevated

b. Embellished

Answer 1

21) Orienting a building with respect to the sun can save 30-40% of heating and cooling costs. Orienting homes toward the Sun based on the region without any additional solar features can save between 10% and 20% and in some cases, we can save up to 40% on home heating.

22) In passive solar design, windows should be minimized on the west side of a building. In passive solar design, it is preferable to have maximized windows on the south to allow more sunlight and minimize windows on the west and east sides of the building to avoid the loss of captured heat from the sunlight in the south during winters.

23) Native species are preferred because they require little to no irrigation once established. Because native plants are adapted to local environmental conditions, they require far less water, saving time, money, and perhaps the most valuable natural resource, water.

24) Tankless water heaters save energy by eliminating Standby energy loss. That is they instantly heat the water from the tap instead of heating and storing it in tanks thereby eliminating standby energy loss.

25) One way to eliminate materials used in a dropped ceiling is to use an Exposed ceiling. The exposed ceiling eliminates most of the materials used in the drop ceiling as it exposes the raw structures and parts instead of covering it like a dropped ceiling.