Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

ELEC 279 > MOD 1 -2 > Flashcards

MOD 1 -2 Flashcards

1
Q

Describe aircraft wire properties in detail

A

Stranded copper, tined with tin, silver or nickel, and insulated with Teflon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What does AWG stand for?

A

American wire gauge (AWG)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

When the AWG number gets bigger the wire gets ______ and can carry less ______.

A

Smaller- Current

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

there are 3 standard colors and associated wire sizes of ring terminals and splices commonly use in aircraft wiring. List the 3 colors and the size of wire each one is made to be used on:

A

RED 22-16 AWG

Blue 16-14AWG

Yellow 12-10AWG

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Most wire you will be using on aircraft will be between 24AWG and 10AWG, if you were to repair a broken wire on an aircraft system that was 20 AWG, what color splice would you use? ____, and how many broken strands are you allowed after you strip the wire? ____.

A

Red-None

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

______ and ______ are used as contacts inconnectors.

A

pins and sockets

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Aircraft wire must be _____ to identify it in the circuit.

A

Marked

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Ringing out a wire is used to test for ______

A

Continuty

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Most aircraft wire is coated in ____ to prevent corrosion.

A

tin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

____ terminals are crimped onto wire.

A

ring

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

In a wiring circuit, this is used as a remote switch

A

relay

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Used to measure wire

A

circular mil

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

The _____ the wire gauge number, the ______it is.

A

Bigger - smaller

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

In a wiring install, a __________ is used for circuit protection.

A

Circuit Breaker

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Solder Sleeves are used on _____ wire

A

shielded

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Can be either solder or crimp type, this is connector in a wiring circuit.

A

Cannon plug

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Type of knot used to secure a wire bundle.

A

clove hitch

18
Q

An ______ load operates for less than 2 minutes.

A

intermittent

19
Q

What are the two types of electricity we use ____and _____

A

AC and DC

20
Q

What electronic instrument do we use to look at AC wave forms?

A

Oscilloscope

21
Q

What is RMS?

A

Roots Mean Square

22
Q

List one way we make AC on an aircraft

A

Generator, inverter

23
Q

What frequency is the AC used in North America?

A

60hz

24
Q

What is the frequency of the AC used on Aircraft?

A

400 hz

25
Q

How do you convert Vpp to Vp?

A

Vp=1/2 Vpp

26
Q

How do you convert Vp to VRMS?

A

Vrms= VpXsin45, or Vrms= Vpx.707

27
Q 
If I use my Digital Multimeter to measure AC voltage, what unit will it be in? 
A) Vpp
B)Vp
C)VRMS
D) DC
A

C)VRMS

28
Q

What is the relationship between RMS and DC Voltages?

A

Same average power in a resistive load

29
Q

What are the two types of oscilloscopes?

A

Analog and digital

30
Q

An oscilloscope will show you how long an AC cycle takes in time, how do you convert this to frequency?

A

Freq=1/period or f-1/T

31
Q

On an Oscilloscope the UP/Down or Vertical scale gives us?

A

Voltage

32
Q

On an oscilloscope the LEFT/RIGHT or Horizontal scale gives us?

A

time

33
Q 
When looking at a DC voltage on an oscilloscope it will show up as? 
A) Nothing scopes are for AC
B) a flat line in the center 
C) A straight line 2 divisions up 
D) Depends on how the scope is set up
A

D) Depends on how the scope is set up

34
Q

The most effective way to measure AC voltage.

A

RMS

35
Q

One _____ is equal to 1 cycle per second.

A

HERTZ

36
Q

Half of one cycle of alternating current.

A

Alternation

37
Q

The Angular distance an AC voltage or current has moved from 0 degrees in a positive direction.

A

phase

38
Q

Phase ______ representation is using a phaser diagram

A

domain

39
Q

The most voltage is induced when _____ to the lines of flux.

A

perpendicular

40
Q

Voltage = peak volatge x Sin Angle.

A

instantaneous

41
Q

Measured in Hertz.

A

frequency

42
Q

______ domain representation is used by an oscilloscope to show an AC wave form

A

time

ELEC 279 (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions