Which of the following is an NEC® requirement for grounding and bonding?

a. The path to ground from circuits, equipment, and metal enclosures shall be continuous.
b. The path to ground from circuits, equipment, and metal enclosures shall have sufficiently high impedance to facilitate the operation of protective devices.
c. The path to ground from circuits, equipment, and metal enclosures shall rely on the earth as an effective ground fault current path.
d. The path to ground from circuits, equipment, and metal enclosures shall be capable of safely carrying twice the maximum current of the system.


a. The path to ground from circuits, equipment, and metal enclosures shall be continuous.

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Which of the following is true about relative humidity?

a. It doesn’t change with the temperature of the air. b. It is the actual amount of water vapor present per lb or kg of air. c. It decreases with the air temperature. d. For a given amount of water vapor in air, it varies with air temperature.

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What will be an ideal response?

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In some hybrid electric vehicles, the wide band oxygen sensor can cause the PCM to enter closed loop ________

A) Within 10 seconds of engine (ICE) start-up B) Within 2 minutes C) By the time the vehicle reaches 60 mph D) As soon as the engine (ICE) starts

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Slip joint pliers can be used in how many positions?

A) One B) Four C) Two D) Six

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