M5 Flashcards
What 4 electronic instruments make up the basic T?
Altitude, attitude, speed, direction
What’s the most popular type of data buses?
Arinc 429
What was a disadvantage of eids and how was it worked around?
In sunlight screens where hard to visualise and they worked around this by increasing the brightness of the screens
What’s the difference between the EFIS on a Boeing and an airbus
Boeing displays called-
electronic altitude director indicator
Electronic horizontal situation indicator
Airbus displays called-
Primary flight display
Navigation display
What’s a CPU
Central processing unit that’s the brains of a computer and controls the machines operating system
What’s the difference between ROM and RAM
ROM- read only memory
RAM- random access memory
Ram is volatile information that’s stored in your files whereas Roms non volatile memory
What’s hardware?
Hard ware is the electrical and mechanical devices that make up a computer
What’s data processing
Handling,storage and analysis of information in a sequence of systematic and logical operations
Incase of electrical failure whats displayed on the standby system ?
Airspeed, altimeter, artificial horizon
What’s an MCDU and what’s it stand for
Multipurpose control and display unit
And it’s primary purpose is to be the interface between the pilot and flight management systems
What’s EICAS and what do they display
Electronic indicating and crew alerting systems
During flight upper screen displays engine parameters and bottom screen displays nothing but during flight if a fault occurs the message is then displayed on top screen and lose screen shows the faulty system parameters
What does the Modern EHSI display and what does it stand for
Electronic horizontal situation indicator
Way points
Distance
Radio steering commands
Magnetic heading
What’s EADI stand for and what’s it capable of displaying
Electronic attitude direction indicator
Displays pitch and roll info,ground speed, flight director info, glide slope, warning messages
What are the six flight instruments
Turn and bank
Airspeed indicator
Attitude indicator
Altimeter
Direction
Gyrohorizon
Advantages of EIS
Less components
Displays relevant information and subsides the less relevant
Coloured displays
Variability
What’s EADI stand for
Electronic attitude direction indicator
EADI - Boeing
Electronic attitude director indication
PFD - airbus
Primary flight display
EHSI - Boeing
Electronic horizontal situation indicator
ND - airbus
Navigation display
EICAS - Boeing
Engine indicating and alerting system
ECAM - Airbus
Electronic centralised aircraft monitor
MCDU
Multi function control displays
What is ASI and where is it found in the EADI/ PFD
Airspeed indicatator and top left
What is ADI and where is it found
Attuitude middle top. Attitude direction indicator
What is VSI and where is it found
Altitude. Vertical speed indication - top right
What is the basic T made up of
Airspeed, attitude, altitude and heading.
What is HSI and where is it
Horizontal situation indicator. Bottom middle
What does the ECAM or EICAS do
It is comprised of two displays in the middle. The top one shows the engine parameters. When a fault occurs then it comes up in detail in the bottom screen
What is an LCDS and what are the adv
Liquid crystal display.
Lower and supplier power supply required.
Produce less heat than CRT
more robust
Brightness set by pilot
What happens when there is total failure of EIS (electronic instrumental systems)
There is standby artificial horizon airspeed and altimeter
What are the buses that transmit that data called
ARNIC 429
What are the advantages EIS
Does not require all info during flight. Reducing clutter
Variability and variety
Coloured displays
Fewer components needed
Displays are interchangeable reducing redundancy
What’s a disadvantage of EIS
Bright sunlight. Could be difficult to read
What’s does the EADI or PRD display
Pitch and roll information
Ground speed
Flight director info
Glide slope info
Status
What does EHSI display
Magnetic heading
Radio steering commands
Way points airports and nav aids
Distance to go
What can EHSI or ND be switched to
From rose which is a full compass to arc or sector which is more zoomed in to see for terrain weather etc
Which EIS has priority
EADI or PFD. Of display is lost then it moves onto EHSI or ND.
What was the earliest airspeed meter made from
Consisted of flexible bamboo strip or metal strip with a paddle on its end. As speed increase airflow pushed the paddle rearward.
What does the ADI provide
Attitude direction indicator provides positive and negative indications of altitude. It’s the master instrument.
What does a glass cockpit use now.
Cathode ray tubes (CRT) or liquid crystal displays (LCD)
What is an address
A name or number of info on the location that it’s needed to go to
What is a bit
A binary digit of 0 or 1
What is a word of bits
A number of bits
What is a byte
8 word bits
How many values can a byte have
256
What is data processing
The handling, storage and amylases of info in a sequence of operations done by the computer
What is firmware
Software that is stored in the ROM
What is hardware
Electronic and mech devices that make up a computer - RAM, ROM, MOTHERBOARD
What is an instruction
A machine word that direct a computer to take a certain action.
What is a computer
An electronic device that accepts and processes data by carrying out a set of instructions in a sequence made by a program
At what speed does the electronic calculator operate
Few milliseconds
What is a memory device
A semiconductor device for memory
What is ROM
read only memory. It’s non volatile. Permanent
What is RAM
Random access memory. Volatile. Non permanent
What is peripheral input/output devices
Enables a computer to communicate. Keyboard, mouse etc
What is software
The program that enables a computer to function and carry out operations.
What is system software
Designed to directly operate the computer hardware. Includes OS and I/O. Start up, file management etc
What is application software
Provides specific functions for user under supervision of operating system. Microsoft word, paint etc.
What is hardware
Stuff that you can touch. CPU, ROM, RAM, I/O system, joined by buses. Consist of CPU which has arithmetic memory uni (ALU) and control unit (CU) and main memory unit. Based on the JohnnVon Neumann architecture.
What is a controlling computer
Primary task of controlling.
Largest category of computers.
Controls other systems.
FSEU - flap slat electronic unit. Provides the means to monitor a flap lever. Stops danger
What is an interactive computer
Displays info to operate and manipulate the data based on interaction.
FMC - flight management computer
Calculates climb, cruise and autopilot, but has to input what we want firstly.
What is reference computer
Used for a source of information or data
It only outputs, providing info
IRS - inertial reference system which shows attitude, heading and acceleration. Feeds 4 systems.
What are information computers
Collects data, processes it and displays it.
EICAS/ECAM is an example.
What is a storage monitor computer
They retain information provided to them by other systems.
EECM - Electronic energise control monitor
When abnormalities occur in engine the data is collected and stored in the EECM
What are the 5 types of computers on aircraft’s
Interactive, storage, monitor, control and info and can be analogue, digital or hybrid
What is PROM
programmable read only memory
Chips that are manufactured blank and can put your on code on there
What is EPROM
Erasable programmable read only memory.
Can be reprogrammed after using ultra violent light on it
What is EEPROM
electronically erasable prom
Can be block erased and written while pc is running
When is flash or EEPROM used
For flight management system nav data base as can be changed at periodic points
What is the clocks timing signals
Periodic square wave pulse train
Which is quicker parallel or series
Parallel
What is 1KB in Bytesb
1000Bytes
What is 1MB in Kb and Bytesb
1000KB or 1000000Bytes
What is 1Gb in Mb and bytes
1000MB or 1000000000Bytes
What happens when there is an ESD discharge
Local over heat
Evaporation
Bending
Layer splitting
Holes
How do you prevent ESD discharges
Good facilities
Personal protection
Training
Grounding everything back to 0
How do you handle new LRU
with same care as a faulty one
Use natural bristle brush when cleaning
What does the hazard symbol for ESD look like
Yellow triangle for universal one.
Government one has a circle with arrows pointing in
What factors effect static electricity
Humidity
Temperature
Type of material
What is the effect is the materials are conductors and static electricity gets in
Very low. The effect would be big if the materials were non conductive
What are the rates that voltage would shock you
Slight shock 1500-2000v
Shock causes pain - 5000v
Intense pain - 15000v
What is an electrostatic conductive bag made out of
Outer layer - metallic sheeting/ aluminium foil
Middle insulation layer
Inner antistatic layer
Then sealed with a warning label
