Electronics Information Flashcards Preview

ASVAB > Electronics Information > Flashcards

Flashcards in Electronics Information Deck (16)
Loading flashcards...
1
Q

When using a digital multi meter to measure the amps in a circuit, the leads should be connected…

A

In the series between the power source and load.

2
Q

What is the correct abbreviation for kilowatt-hour?

A

kWh

3
Q

What position is a push-to-break switch usually in?

A

On

4
Q

Which can measure electrical potential between two points in a circuit?

A

Voltmeter.

5
Q

How many amps are in 3,500 milliamps?

A

3.5

6
Q

What is calculated with equation P = I * V?

A

Electrical power.

7
Q

What does the I stand for in the equation P = I * V?

A

Current

8
Q

Some of the advantages of a optical data transfer (via optical cable) versus wireline data transfer are:

A

1) increase resistance to tapering/unauthorized signal interception.
2) reduce the possibility of unwanted interference from electromagnet sources.

9
Q

What does a capacitor do?

A

Stores electric current.

10
Q

Which is an example of a load in a circuit?

A

Lightbulb.

11
Q

A real-world usage of multiplexing could be:

A

1) A telecommunications company using several different laser light colors in the same fiber line to increase overall throughout.
2) A mobile phone service provider setting up a tower to “listen” to multiple cell phone calls at one time.
3) A media company using two microphones to provide the same audio signal to 17 independent audio recorders during a press conference.

12
Q

Which is a variable resistor with three terminals and a contact that can slide?

A

Potentiometer.

13
Q

When wiring 11oV/12oV AC power (in the United States of America), what is the standard accepted color of the neutral wire?

A

White.

14
Q

Am ohmmeter is used to measure what?

A

Electrical resistance.

15
Q

DTMF stands for ____ and is most often found ____.

A

Dual Tone Multi-Frequency, in the touch tones in a push button landline telephone.

16
Q

What is a diode?

A

Component that allows electricity to travel only one way.