LESSON ONE
PRACTICE EXERCISE
ANSWER KEY AND FEEDBACK
Item
Correct Answer and Feedback.
1.
D.
Voltage, current, and resistance.
Voltage is the forage or pressure that causes current to flow in
a wire, and resistance is the opposition to current movement.
(Page 7, para 2).
2.
A.
Unit of measure of electrical resistance.
An ohm is the amount of resistance that must be overcome for
current to move in an electrical circuit. (Page 4, para 1.a.
(21)).
3.
B. One of three units comprising a generator regulator.
In electrical circuits, a mechanism designed to break or open
the circuit when certain conditions exist. (Page 3, para 1.a.
(5)).
4.
C.
Current.
The ammeter is designed specifically for measuring current flow
in an electrical circuit. (Page 3, para 1.a.(2)).
5.
C.
It delivers more current at lower speeds.
When current is induced into the alternator, it will start
charging. The DC generator does not produce current until it
reaches high speed. Therefore, the alternator is the preferred
component. (Page 7, paras d. and d.(1)).
6.
B.
The entire circuit is inoperative.
A series circuit only has one path for current to flow. Any
component in that circuit that burns out causes the entire
circuit to be inoperative because it now has an open circuit.
(Page 10, para 4.a.(2)).
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