Which of the following are considered critical noise factors?

A) Level, frequency, duration, and distribution
B) Vibration, impulsivity, and band width
C) Neither A nor B
D) Both A and B


A) Level, frequency, duration, and distribution

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When rays interact with other compounds, they split atomic nuclei in a process called ____

A) compression B) fusion C) fission D) none of these

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Technician a says that a scan tool may be required to retrieve data and diagnostic trouble codes from some antilock braking systems. Technician B says that a jumper wire can be used to retrieve diagnostic trouble codes on some antilock braking systems. Which technician is correct?

A. Technician A B. Technician B C. Both Technicians D. Neither Technician

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Push buttons are always shown as normally open.

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

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When installing single conductor cables in tray systems with conductors size 4/0 and larger, they must be _____.

a. installed in multiple layers b. installed in a single layer c. spaced one cable diameter apart d. derated according to the number of conductors in the tray

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