Sound welding procedures for welding alloys include:

A) Pre-heat specifications B) Ductile electrodes
C) Use of low-hydrogen electrodes D) All of the above


D

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Regardless of the temperature rating of the conductor, the ampacity must be selected from a column that does not exceed the ____________________ rating of the termination

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

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A ____ disconnects power to the entire control circuit.

a. master switch b. centrifugal switch c. finish relay d. potential start relay

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A ground fault circuit interrupter is designed to:

A) Prevent electrical shock to individuals. B) Protect electric motors. C) Prevent too much voltage through the conductor. D) Prevent too much current on the conductor.

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The switch in the circuit shown below has been closed for a long time before it is opened at t = 0. Find the current i(t) through the inductor for t ? 0. Assume R1 = 400 ?, R2 = 2 k?, R3 = 1 k?, R4 = 6 k?, Vs = 2 V, L = 90 mH.

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