Block 4

Question 1

of times something occurs in agiven period

Answer 1

Frequency

Question 2

Distance between two crests

Answer 2

Wavelength

Question 3

Wave of Energy that broadcasts as a periodic disturbance

Answer 3

Electromagnetic wave

Question 4

Radio Frequency Interference Range

Answer 4

20kHz to 300GHz

Question 5

Sources of Radio Frequency

Answer 5

Transmitters and Electrical Equipment

Question 6

Propagation of EMW’s

Answer 6

Electromagnetic Radiation

Question 7

Speed of Light

Answer 7

186,000 m/s

Question 8

Methods of Combating RFI

Answer 8

• Design and Construction
• Frequency Hopping
• Antennas
• Shielding
• Software

Question 9

Radio Waves

Answer 9

100s m - < 1 cm

Question 10

Microwaves

Answer 10

30cm to 1mm

Question 11

Infrared

Answer 11

1mm to 700nm

Question 12

Visible

Answer 12

700nm to 400nm

Question 13

Protects against nuclear explosive hazards

Answer 13

Nuclear Hardness

Question 14

What airplane uses Nuclear Hardened Cables?

Answer 14

B52H

Question 15

Designed to route EMP to SV

Braided Wire w/ copper shielding

Answer 15

Nuclear Hardened Cable

Question 16

Problems with Nuclear Hardened Cable

Answer 16

Cost
Weight
Extra Care for components

Question 17

Every opening is protected w/ EMP Device

Answer 17

Hull-Hardening

Question 18

What aircraft uses Hull Hardening?

Answer 18

B1

Question 19

What symbol identifies the entire procedure or only certain tasks

Answer 19

HCP

Question 20

What Job Guide is used for Maintenance/Inspection

Answer 20

T.O. 00-1

Question 21

What is used to test for resistance?

Answer 21

Bonding Meter

Question 22

What is the limit for the Bonding Meter? What must the voltage be?

Answer 22

15 Milliohms

< 1 Volt

Question 23

What finish is Corrosive, translucent brass color, Damage is unacceptable

Answer 23

AA Finish

Question 24

Conductive finish, dimpled appearance, damage less than 0.0625 is acceptable

Answer 24

KA Finish

Question 25

Between Hull, doors, panels, and Hull mounted structures

Answer 25

EMP Gasket

Question 26

Most critical phase

Answer 26

Inspection Phase

Question 27

What Data bus is used in Legacy Systems

Answer 27

MIL-STD 1553A

Question 28

What data bus is most common

Answer 28

MIL-STD 1553B

Question 29

What bus uses Fewer IU’s

Answer 29

MIL-STD 1553B

Question 30

How is the format of traffic in the 1553B

Answer 30

Bi-directional | Half Duplex

Question 31

Controls the flow of info

Answer 31

Bus Controller

Question 32

Responsible for the command-response

Answer 32

Bus Controller

Question 33

Back-Up Bus Controller

Answer 33

Take bus controller in the event of primary bus failure

Question 34

What is capable of bus control functions

Answer 34

Remote Terminal

Question 35

Transfers data to and from the bus

Answer 35

Remote Terminal

Question 36

How many Remote Terminals are on a single bus

Answer 36

31

Question 37

What component is strictly Passive and only receives data but will not transmit

Answer 37

Bus Monitor

Question 38

Records all selected traffic which can be analyzed later such as Flight Testing, System Integrity, and Maintenance Analysis

Answer 38

Bus Monitor

Question 39

Physical Pathway or medium used in transferring data

Answer 39

Data Bus

Question 40

Contains a twisted shielded pair wiring

Answer 40

Data Bus

Question 41

What component converts/translates info to and from the bus

Answer 41

Interface Unit (IU)

Question 42

What IU assembly is bidirectional and provides data bus decoding

Answer 42

Modem

Question 43

What IU assembly is the interface between the modem and CPU?

Answer 43

Handshaker

Question 44

What IU assembly sequences all interface operations and controls all internal IU operations

Answer 44

CPU

Question 45

What memory stores all IU operational info and is non-volatile

Answer 45

PROM

Question 46

What memory is used for temporary storage of data transmissions

Answer 46

RAM

Question 47

What is the power application and is not always required

Answer 47

Oscillator

Question 48

Total opposition to AC current flow

Answer 48

Impedance (Z)

Question 49

Physical connection to data bus

Answer 49

Stubs

Question 50

The method of stubs that is short and 1ft

Answer 50

Direct Coupled

Question 51

The method of stub that is long and is 20ft

Answer 51

Transformer-coupled

Question 52

How many computer words are there

Answer 52

20 3 sync 16 Data 1 Parity

Question 53

What is used for internal testing and data error detection

Answer 53

Bit Parity

Question 54

Coding format used in 1553

Answer 54

Manchester Bi-Phase words

Question 55

Causes data to arrive and transition either too early or too late

Answer 55

Mismatched Impedance

Question 56

Only transmitted by Bus Controller

Answer 56

Command Word

Question 57

Transmitted by the Bus Controller and Remote Terminal

Answer 57

Data Word

Question 58

Only transmitted by remote terminals

Answer 58

Status Word

Question 59

Requests status words from all RT when bus is not transmitting traffic

Answer 59

Polling