Which of the following materials is defined as a semiconductor?

A. Gold
B. Silicon
C. Aluminum
D. Plastic


Answer: B

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Touching a printed circuit board with dirty hands will probably NOT harm the circuit.

Answer the following statement true (T) or false (F)

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Which of the following statements regarding safety training sessions is correct?

a. They are only required after an accident has occurred. b. They are usually conducted by the project manager. c. They should be conducted frequently by the crew leader. d. They are only conducted for new employees.

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Emergency generators generally ____________________.