The practical unit of electrical charge is the ____.
a. watt
b. ohm
c. volt
d. coulomb
d. coulomb
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?Why is the root pass weld started on top of a tack weld?
A. ?To eliminate the potential lack of fusion. B. ?To prevent porosity caused by the lack of shielding gas at the instant the weld starts. C. ?So the arc light will show the root opening and make it easier to get aligned with the root opening as the weld moves off of the tack weld. D. ?The root pass can be started anywhere it is comfortable for the welder to begin welding.
Technician A says that an engine will likely miss under load if the ignition coil is tracked. Technician B says that one wire of a waste spark coil must be grounded. Who is right?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
In a basic electric circuit with a steady potential, when resistance increases:
A) Current increases. B) Current decreases. C) Current remains the same. D) The resistance has no effect on the current in an electric circuit.
Match the following terms with their proper units and/or formulas.
A. force X distance B. 3413 Btu C. ft3/lb D. no units E. 33000 ft-lb/min F. lb/ft3