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Module 5 > Mod 5 > Flashcards

Mod 5 Flashcards

1
Q

EIDS stands for?

A- Electronic Instrument Data System
B- Electronic Instrument Display System
C- Electronic Identification Data System

A

EIDS -

B- Electronic Instrument Data System

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2
Q

Advantages of EIDS

A

Variability and Variety

Coloured Displays

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3
Q

How are parameters fed via EIDS?

3 ways

A

Via Display Data Buses to CPU Controlled CRT or LCD

Via Digital Data buses to a printer for a hard copy printout

In digital form to a radio transmitter, which sends Data to ground

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4
Q

How are EIDS arranged?

A- Basic I
B- Basic H
C- Basic T

A

C- Basic T

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5
Q

How are the EIDS monitors brightness controlled?

A- Control Knobs and brightness of sunlight
B- They can not be altered
C- Overhead push switches

A

A- Control Knobs and brightness of sunlight

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6
Q

What is the disadvantage of EIDS compared to Analogue systems?

A- They are harder to understand
B-Difficult to read indications in bright sunlight
C- Can’t contain as much information

A

B- Difficult to read monitors in bright sunlight

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7
Q

What does ECAM stand for?

A

Electronic Centralised Aircraft Monitoring

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8
Q

What does FDRS stand for?

A

Flight Data Recording System

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9
Q

What does CMS stand for?

A

Central Maintenance System

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10
Q

What does ACMS stand for?

A

Aircraft Condition Monitoring System

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11
Q

Minor Troubleshooting uses what and how?

A

ECAM and CMS through MCDU’s and generated reports (printed or ACARS downlinked)

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12
Q

In depth troubleshooting uses what and how?

A

Uses ACMS and CMS through MCDU and printed reports

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13
Q

Long term maintenance uses what and how?

A

ACMS and FDRS through printed, ACARS downlinked and downloaded reports or tapes

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14
Q

MSD stands for what and is located where?

A

Most Significant Digit located far left

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15
Q

LSD stands for what and is located where?

A

Least Significant Digit located far right

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16
Q

Positional Notation labels its digits as?

A

Value or Weight

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17
Q

What is the point called in a Binary Fraction?

A

Binary Point

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18
Q

How does the DFDAU recognise its location on different Aircraft types?

A

Decodes Ident discretes

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19
Q

How many Discretes on an FDAU?

A

18

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20
Q

What is the EEC Programming Plug also known as?

A

Data Entry Plug

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21
Q

What is the EEC Plug part of?

A

The Engine

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22
Q

How is the EEC Plug pin programmed?

A

Binary specific to an individual engine serial number

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23
Q

What is the EEC Plug required for?

A

ACMS printed reports

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24
Q

What is the largest Digit of a numbering system?

A

One less than the base

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25
Q

What does FADEC use to assist with Troubleshooting?

A

Maintenance Data Storage and retrieval system

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26
Q

When does the FADEC system store when engines are running?

A

In flight faults and flight conditions together with environmental conditions

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27
Q

When is the FADEC Maintenance system activated on ground?

A

Selection on the maintenance panel of the BITE display mode

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28
Q

What’s displayed on the ECAM when BITE display mode is selected?

A

Maintenance words encoded from non-volatile memory and the delta corresponding memory

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29
Q

What is Binary Coded Decimal most convenient for?

A

Computers

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30
Q

What does ALU stand for?

A

Arithmetic Logic Unit

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31
Q

What form of inputs does an ALU require?

A-Analogue
B-Digital

A

B-Digital

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32
Q

Three most common Logic Circuits?

A

Inverter
AND
OR

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33
Q

What is an Inverter also know as?

A

Boolean Complement

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34
Q

When will a Diode Logic Minimum Circuit produce a positive Logic?

A

When all of the Logics are positive

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35
Q

When will a Diode Logic Maximum Circuit produce a positive Logic?

A

If one or more of the inputs is Positive Logic

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36
Q

What does DTL stand for?

A

Diode Transistor Logic

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37
Q

What are the 2 types of DTL?

A

NAND and NOR

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38
Q

What does RTL stand for?

A

Resistor Transistor Logic

39
Q

What are the 2 types of RTL?

A

NAND and NOR

40
Q

What does ECL stand for?

A

Emitter Coupled Logic

41
Q

What does TTL technology use?

A

Transistors at the inputs with several emitters

42
Q

Why are there diodes at the inputs of TTL

A

To protect the inputs from excessive voltages

43
Q

Where are TTL’s only available?

A

Integrated Circuits (IC’s)

44
Q

What are WIRED AND and WIRED OR also called?

A

DOT AND and DOT OR

45
Q

What happens if you switch the outputs in Parallel in a Logic Circuit?

A

It destroys the electronic devices

46
Q

How can you switch the output parallel on a WIRED-AND or WIRED-OR circuit?

A

If you connect it in an OPEN COLLECTOR arrangement

47
Q

When is parallel switching called WIRED-AND?

A

When the 0 signal is dominant (TTL)

48
Q

When is Parallel switching called WIRED-OR?

A

When 1 signal is dominant (ECL)

49
Q

What rule are codes determined by?

A

Determined Input combinations will be converted to determined output combinations

50
Q

What is an Assessable Code?

A

If every single Bit has a value

51
Q

What is an Unassessable code?

A

Code that bits do not have a certain value. The Bit pattern itself gives the data word

52
Q

Give examples of Assessable codes

A

Symmetric 8421
Unsymmetrical 2421
Aiken Code

53
Q

Give an example of an Unassessable code

A

3XS Code

54
Q

What is a disadvantage of 8421 Code?

A

All bits could be 0 which means you can’t see any defects

55
Q

What numbers do the Aiken Code use?

A

First 5 (0-4) and last 5 (11-15) options of binary code

56
Q

What codewords do the 3XS code use?

A

Numbers 3-12 from the binary code

57
Q

What is an advantage of 3XS Code?

A

Under no circumstances are all bits 0 or 1

58
Q

What is a single step code?

A

One that from one decimal step to the next, only one binary bit changes its value

59
Q

Why do we use single step code?

A

In case of mechanical inaccuracies, no faulty information can be generated when switching from one number to another

60
Q

Give examples of single step code

A

Gray Code
Libaw-Craig Code
Gilham Code

61
Q

What is Gilham code used for?

A

ATC systems on old Aircraft

62
Q

What is the altitude encoded in on the Gilham Code?

A

100 FT

63
Q

Where is the Gilham Code generated?

A

Altimeter or analogue ADC

64
Q

What is ASCII Code?

A

American Standard Code for Information Interchange

65
Q

Give examples of ASCII code

A

ISO Alphabet No.5
CCIT Code 5
7 Bit Code DIN 66003

66
Q

What is ASCII Code used for?

A

Used to transfer Alpha-Numeric Data as words, text messages and processor commands

67
Q

Name 3 code converters

A

Encoder
Converter
Decoder

68
Q

What does an Encoder do?

A

Converts Input message with a greater number of bits to an output message with a lower number of bits (Increasing the base)

69
Q

What does a Converter do?

A

A converter code converts one code to another with identical number of bits

70
Q

What does a Decoder do?

A

A decoder converts an input with a lower number of bits to an output with a larger number of bits (decreasing the base number)

71
Q

What does a Comparator do?

A

Compares two words to check if they are Equal

72
Q

What does a comparator do if words are not equal?

A

Find out which word value is higher than the other

73
Q

What does a comparator depend on to compare 2 codes?

A

They must both be Assessable and be the same code type

74
Q

What is a priority Circuit used for?

A

Used to rank different inputs based on priority

75
Q

What can happen during transportation of digital data information?

A

Can be changed by external influences between the receiver and transmitter

76
Q

How can you identify if a fault has been induced into digital data information between a receive and transceiver?

A

Parity generator

77
Q

What can be used to set a Fault status at the receiver end?

A

Parity Controller

78
Q

What is a Karnaugh-Veitch Diagram used for?

A

To optimise digital circuitry and the amount of necessary gates

79
Q

What are discrete inputs?

A

Open/Ground or Open/28V

80
Q

What does a Multiplexer do?

A

Device which combines several inputs into a single output

81
Q

What is a demultiplexer?

A

A device which takes data from one source and distributes it to several outputs

82
Q

What is the output of a multiplexer and demultiplexer dependant on?

A

The Address lines

83
Q

What is the previous state of a Storage device called?

A

Internal State

84
Q

What is ‘t=tm’?

A

Point where input variables are changed but internal states and output state are unchanged

85
Q

What is ‘t=tm+1’?

A

New input states change the internal states and the output state

86
Q

What are the 2 types of memory?

A

Static and Temporary

87
Q

What is static memory also known as?

A

Bistable sweep stage

88
Q

What is temporary memory also known as?

A

Mono-astable sweep stage

89
Q

What does Static memory (bistable sweep stages) depend on?

A

Input stages and History of input stages

90
Q

What does Temporary memory (mono-astable memory) depend on?

A

Input state, history of input state and time

91
Q

What type of arrangement is a flip flop?

A

Storage Device - Bistable sweep stage (static memory)

92
Q

What properties must a storage device have?

A

Store, set and reset(clear)

93
Q

What’s the condition where both outputs of a SR Flip-Flop are 1 at the same time?

A

Irregular state (forbidden or restricted)

Module 5 (1 decks)

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