An activated carbon filter will remove _____.

a. organic chemicals
b. nitrates
c. bacteria
d. heavy metals


a. organic chemicals

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One type of relay consists of a static, current-sensitive network connected ____ the line and a switching relay connected in the coil circuit of the starter.

a. in series with b. below c. next to d. in parallel with

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Which of the following is NOT a potential hazard associated with motors?

a. Corrosion b. Electrocution c. Burns d. Injury from moving parts

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After grass seeds germinate, the soil should not be allowed to dry out until the grass is what height?

a. 2 inches c. 3 inches b. 2.5 inches d. 3.5 inches

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Shock absorbers, despite their name, actually dampen spring movement instead of absorbing shock.

a. true b. false

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