Unit 2

Question 1

In an alternating current (AC) voltage signal, how many peaks does each cycle have?

Answer 1

2

Question 2

What component does a magnetic field have little to no influence on?

Answer 2

Resistors

Question 3

A good example of a use for a variable resistor is a

Answer 3

dimmer switch for a light

Question 4

What do we call the induced voltage that moves in the opposite direction as the applied voltage in an inductor?

Answer 4

Counter electromotive force (EMF)

Question 5

What alternating current (AC) characteristic causes an opposition to any CHANGE in current flow?

Answer 5

Inductance

Question 6

What component may increase or decrease voltage in a circuit?

Answer 6

Transformer

Question 7

If the secondary coil of a transformer has less coil turns, what does the transformer do to meet circuit needs?

Answer 7

Steps the voltage level down

Question 8

If the secondary coil of a transformer has more coil turns, what does the transformer do to meet circuit needs?

Answer 8

Steps the voltage up

Question 9

What type of transformer only uses a secondary coil?

Answer 9

Current

Question 10

What is the insulating material called that separates the two plates of conductive material in a capacitor?

Answer 10

Dielectric

Question 11

What alternating current (AC) characteristic causes an opposition to any CHANGE in the value of voltage?

Answer 11

Capacitance

Question 12

Since most of the capacitors you will see have a rating much lower than one farad, what do we refer to theses as, represented by μf?

Answer 12

Microfarad

Question 13

Which mnemonic spells out the phase shift in an alternating current (AC) circuit?

Answer 13

ELI the ICEman

Question 14

What do we call the power created by inductance or capacitance?

Answer 14

Reactive power

Question 15

What is the bias of a diode when we connect the positive terminal of the battery to the P-type material and the negative terminal of the battery to the N-type material?

Answer 15

Forward

Question 16

How much resistance does a diode offer to the current lo when the power source connects in the forward bias direction?

Answer 16

Low

Question 17

In reference to reverse bias, what happens when the majority carriers move outward allowing the barrier voltage to increase?

Answer 17

Increase in the depletion region

Question 18

What are the four basic types of wiring diagrams used in the power production field?

Answer 18

One-line, schematic, connection, and interconnection diagrams

Question 19

Which diagram shows the connection of an installation of its component devices and equipment?

Answer 19

Connection

Question 20

Which diagram provides complete wire numbers, plug and jack pin numbers, and cannon plug numbers required to completely extract and troubleshoot specific circuits?

Answer 20

Connection