Ladder diagrams show a system's sequence of operation:

A) From left to right. Actions on the left occur before actions on the right.
B) By showing the loads and switches in each circuit.
C) By showing each physical wire on the unit.
D) By the order of the circuits. The circuit at the top of the diagram is energized first, and the circuit at the bottom is energized last.


B

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A medium-growth coniferous tree planted in an urban or suburban setting after being raised in a nursery for 1 year can sequester 10.5 kg of CO2 over a tenyear period of growth. If you lived in an average home in the United States, how many trees would you need to plant to remove the CO2 you would produce from driving your car, using electricity in your home, and heating your home with natural gas for a period of 10 years?

What will be an ideal response?

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Reinforcing bars should be _____.

a. heated with a torch before bending b. bent no more than 90 degrees c. lubricated before bending d. bent cold

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What color is reserved for identifying the high leg of a three-phase, four-wire system?

a. Green b. Grey c. Orange d. White

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While having a discussion, Technician A says that standard release bearings remain in constant contact with the clutch cover. Technician B says that standard release bearings do not remain in constant contact with the clutch cover. Who is correct?

A. A only B. B only C. Both A and B D. Neither A nor B

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