Technician A says a micrometer may have a digital readout. Technician B says a micrometer may have a decimal equivalent chart stamped on it. Who is correct?

A. Technician A
B. Technician B
C. Both technicians
D. Neither technician


Answer: C

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A zener diode is normally used for voltage regulation. A zener diode, however, can also be used for high voltage spike protection if connected ________.

A) Positive to anode, negative to cathode
B) Positive to cathode, ground to anode
C) Negative to anode, cathode to a resistor then to a lower voltage terminal
D) Both A and C

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For fire safety on a rural site, maintenance of tree limbs above the driveway for _____ of clear access is recommended.

A. 8' (2438 mm) B. 10' (3048 mm) C. 15' (4572 mm) D. 18' (5486 mm)

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In order to thread steel pipe, ____________________ must be used to make sure that friction and heat do not damage the pipe and/or cutting dies.

Fill in the blank(s) with the appropriate word(s).

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The best way to repair a defective relay is by ____________________.

Fill in the blank(s) with the appropriate word(s).

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