Dimming the electrical lighting in a house is a simple way to reduce energy use. Setting dimmers at 50% of full light output saves about ____% of the energy required.
A. 20
B. 30
C. 40
D. 50
Answer: C
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Coolant drained from the cooling system when replacing a thermostat or water pump should be ________
A) Poured down a toilet B) Reused C) Filtered and reinstalled after the repair D) Disposed of properly or recycled
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A grid-connected solar power system requires some additional equipment beyond the basic solar generation components. This equipment is called ____________________ equipment.
Fill in the blank(s) with the appropriate word(s).
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The cultivar name appears _____
A) written in small letters B) as italics C) enclosed in quotes D) bold
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The adsorption of many pesticides is greater in strongly acid soils than in neutral to alkaline soils
Indicate whether the statement is true or false
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