Brainscape's Knowledge GenomeTM

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


See full index

RCDD > Ch 02 - Electromagnetic Compatibility > Flashcards

Ch 02 - Electromagnetic Compatibility Flashcards

1
Q

2–1 electromagnetic compatibility (EMC)

EMI =

A

Frequency overlap

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

2–2 EMC

Electromagnetic spectrum =

(7)

A

Light

radiowaves

microwaves

infrared (IR)

radiation

ultraviolet rays

x-rays

gamma rays

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

2–2 EMC

Electromagnetic spectrum visible lights =

A

10^15 (1PHz)

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

2-2 electromagnetic spectrum

PHz =

A

Petahertz

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

2–3 EMC

Conducted coupling =

A

Except solid-state devices, does not belong

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

2–4 EMC

ITS designer =

A

Not directly responsible of EMC of ITS

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

2–6 EMC electromagnetic

Internal EMI sources =

A

Except incandescent light fixtures, does not belong

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

2–8 EMC

EMC measurement =

A

No techniques to measure

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

2–16 EMC – the solution

EMI types =

(2 and their examples)

A

* man-made: Conversion, distribution, generators

* natural: Atmospheric electricity, Cosmic radiation/geomagnetism disturbances

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

2–19 EMC electromagnetic qualification parameters

ESD =

A

Electrostatic discharge

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

2–19 EMC electromedical qualification parameter

type of ESD =

A

Discharge through a spark in the air

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

2–20 EQP

Immunity Air L2 =

A

4kV

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

2–20 EQP

Immunity contact L4 =

A

8kV

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

2–20 electromagnetic qualification parameters

Immunity contact L2 =

A

4kV

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

2–27 EMC

CRT =

(2)

A

* cathode ray tube

* susceptible to RFI

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

2–28 EMC unwanted signals

Types of unwanted signals in EMI =

(2)

A

* common-mode (CM)

* differential mode (DM)

17
Q

2–28 EMC unwanted signal

CM =

(2)

A

* Predominant unwanted signal

* locks up computer

18
Q

2-28 unwanted signals

ferrite beads =

A

filter unwanted signal

19
Q

2–29 EMC unwanted signals

DM noise =

A

Corrupting transmitted signals on a balance circuit

20
Q

2–44 cabling systems

Branch circuits of 5kVA =

A

No additional separation necessary

21
Q

2–44 cabling system

Minimum separation electrical motors and transformers =

A

47in

22
Q

2–44 cable separation

Minimum separation for unshielded power, nonmetal pathways =

A

24in

23
Q

2–44 cabling separation

Min. separation unshielded power, grounded metal conduit =

A

12in

24
Q

2–44 cable separation

Min separation power lines enclosed, grounded metal conduit =

A

6in

25
Q

2-44 cable separation

Metallic cabling and EMI source separation =

A

Fluorescent lamps, 5.12in

26
Q

2–51 telecom cabling joint use tunnel

Three components in joint use tunnel =

A

Except unbalanced DM fields, do not belong

27
Q

2–51 telecom cabling joint use tunnel

Coupling mutual capacitance/mutual conductance =

A

Except signal injector, does not belong

RCDD (24 decks)

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