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WorksheetsModule 7770 AL06_02 (full Bank)
Total questions: 84
Worksheet time: 42mins
A system which uses feedback to compare the desired output with the actual output describes which type of control system?
Closed Loop
Open Loop
Manual
Automatic
which of these statements is not part of a Microprocessor Controlled System?
Input sensor data is fed to an Analogue to Digital converter
The output sensor reads the output in analogue
The output sensor feeds its analogue readings back to the error detector
The microprocessor compares the actual output with the desired output, which is calculated based on the software installed.
A potentiometer measures
Rotational position
Resistance
Temperature
Orientation
A system which sets the desired output but has no regulation as to whether the output is actual achieved describes which type of control system?
Closed Loop
Open Loop
Manual
Automatic
A signal having a voltage that varies among a theoretical infinite number of values within a given range.
Describes what type of signal
Analogue Signal
Digital Signal
Binary Signal
A signal having one of a limited number of discrete values.
Describes what type of signal
Analogue Signal
Digital Signal
Binary Signal
An Analogue to Digital Converter will;
Convert a continuous-time, continuous-amplitude voltage into discrete steps at a discrete rate
convert a series of numbers represented by 1’s and 0’s into a varying voltage
Hold data in its memory until polled by the controlling computer
convert discrete data inputs into an encoded polar signal
A Digital to Analogue Converter will;
Convert a continuous-time, continuous-amplitude voltage into discrete steps at a discrete rate
convert a series of numbers represented by 1’s and 0’s into a varying voltage
Hold data in its memory until polled by the controlling computer
convert discrete data inputs into an encoded polar signal
Which of the following components are components of a smart sensor
Digital to Analogue converter
Control Logic
Senor Head
Data Transmission Equipment
Polling Switch
What does FADEC stand for and what type of control system does it use.
Full Authority Digital Engine Control
Microprocessor / Digital Closed loop system
Full Authority Digital Engine Control
Analogue and Mechanical Closed loop system
Fully Automated Digital Engine Control
Analogue and Mechanical Closed loop system
Fully Automated Digital Engine Control
Microprocessor / Digital Open loop system
Which of these answers is a disadvantages of using FADEC?
No manual reversion
Reduced pilot workload
Lack of temperature regulation
Higher chance of over-torque
What does ACSR stand for?
Active Control of Structural Response
Actual Control of Structural Regulators
Acute Cyclic Strain Resistor
Active Computer Speed Regulator
What is the purpose of ACSR?
Reduces the Vibrations felt in the structural of the aircraft.
Reduce the stress placed on the airframe from over speeding
Reduces the stress felt by the aircrew from manual engine control
Removes all engine surging
What does the ACSR system do with the signals collected from its sensors?
Combines all the signals then creates an inverse signal.
Inverses each signal individually
Combines all the signals then amplifies the signal.
Amplifies each signal individually
What type of sensors are there in the ACSR system?
Accelerometers
Thermocouples
RVDT
Tachogenerators
Which of these statements is false regarding Polling
Polling is an Asynchronous operation
All devices on the network are interrogated
Instantaneous data is taken from a device in turn and stored.
Data capture is referred to as Sample and Hold
Which of these statements are false regarding interrupts
Select all incorrect answers
A smart sensor will send an interrupt signal to the computer then its data on the same line.
A peripheral device after sending an interrupt signal will wait until the computer authorises it to send its data.
A smart sensor has two transmission lines to the controlling computer.
Interrupt is synchronous operation
Which of these components are not part of a smart sensor?
DAC
ADC
Control Logic
Sensor Head
Data Transfer Equipment
With regards to data transmissions, in a synchronous system events happen at irregular intervals. Data is only created and collected when it is available.
True
False
With regards to data transmissions, in an asynchronous system events happen at irregular intervals. Data is only created and collected when it is available.
True
False
Interrupt Processing:
The computer goes to each input device in turn and takes the instantaneous data for each and stores it.
True
False
Polling Processing:
The computer goes to each input device in turn and takes the instantaneous data for each and stores it.
True
False
What device is used to convert data into a format suitable for a display?
Display Adaptor
Media Adaptor
Medium Interface Adaptor
Liquid Crystal Display
Which letter represents the component that;
converts data to a format suitable for a display system
(a)
specialised electronic circuit designed to rapidly manipulate and alter the computer’s memory to accelerate the creation of images, in a portion of that memory called the frame buffer
Describes which component?
Graphics Processing Unit
Helmet Mounted Display
Helmet Mounted Display Electronics Unit
Video Processor
What is the missing word from this description of a Liquid Crystal Display.
The LCD is made up of millions of ______. These ______ do not emit light themselves, but rather allow light from a backlight through, as required, to display data.
(a)
alerts the pilot of a condition requiring immediate response or attention to prevent personal injury, loss of life, loss of aircraft, or failure of mission.
Refer to what type of alert? and what colour would it be?
Select 2 answers
Warning
Caution
Red
Yellow
Advisory
alerts the pilot of a condition that, without a timely and correct response, could result in equipment damage or failure of mission.
Refer to what type of alert? and what colour would it be?
Select 2 answers
Warning
Caution
Red
Yellow
Advisory
Current is drawn from each corner of the electric field and a controller calculates the ratio of currents drawn and determines the touch location.
describes part of the function of what display?
Capacitive touchscreen
Resistive touchscreen
Inductive touchscreen
Integrated Display Unit
All Up Mass
Escape or ferry general missions.
Air corridors.
Air space restrictions
Are all examples of data that is typically;
uploaded to the aircraft
downloaded from the aircraft
uploaded to and downloaded from the aircraft
permanently stored on the aircraft
Communication pre-sets
Cyclic Centring or Engine Calibration data
Are all examples of data that is typically;
uploaded to the aircraft
downloaded from the aircraft
uploaded to and downloaded from the aircraft
permanently stored on the aircraft
Mission and theatre data.
Prognostics and aircraft health data
Display video.
Aircraft parametric (systems’ health) data
Are all examples of data that is typically;
uploaded to the aircraft
downloaded from the aircraft
uploaded to and downloaded from the aircraft
permanently stored on the aircraft
What device does the Wildcat use to transfer downloaded maintenance data off the aircraft?
PCMCIA card known as maintenance Data Transfer Device (mDTD)
Non-encrypted USB stick
Key Storage Unit (KSU)
improved Mass Memory Module (iMMM)
What is the storage capacity of the mDTD?
128 Mb
512 Mb
64 Gb
32 Kb
What component is labelled C pointing at?
acoustic beacon
crash survivable battery
crash survivable memory unit
download port
Which of these answer is not a typical input to a Cockpit Voice and Flight Data Recorder?
Rotor speed
Event Marker Switch
Cockpit Area Microphone
Electro-Optic/Infra-Red Video
In serial transmission data is transmitted one bit at a time along a two-wire system.
True
False
In parallel transmission data is transmitted more than one bit at a time with each bit encoded on the same wire.
True
False
A transmission line with data transmission in both directions simultaneously, describes what type of transmission?
Full Duplex
Half Duplex
Simplex
Multiplex
A transmission line with data transmission in both directions but only one direction at a time, describes what type of transmission?
Full Duplex
Half Duplex
Simplex
Multiplex
What is the name of the process that combines multiple signals into one for transmission over a single medium?
Multiplexing
Half Duplexing
Full Duplexing
Simplexing
Which of these Multiplexing methods can not be used for analogue multiplexing?
Frequency Division Multiplexing
Wavelength Division Multiplexing
Time Division Multiplexing
A data communications network that covers a relatively broad geographic area, describes what type of Area Network?
WAN
LAN
CAN
MAN
A data communications network that It serves a role like an Internet service provider, but for corporate users with large Area Networks, describes what type of Area Network?
WAN
LAN
CAN
MAN
A data communications network that will cover a small geographical area, most commonly an office, company or an aircraft., describes what type of Area Network?
WAN
LAN
CAN
MAN
Which of the Network Topologies show below is a star network?
Which network topology does not have problems with collisions of data?
Star
Mesh
Bus
Ring
Tree
In a Star Network, failure of the central node will not affect entire network.
true
false
A Star Network is easy to implement and extend.
true
false
A Star Network is a reliable market proven system.
true
false
A Star Network is not limited by cable length.
true
false
It is easy to adjust and add new computers to a Star Network.
true
false
Which of these statements is referring to CSMA/CD?
it has a procedure to handle collisions
it has procedure to avoid collisions
it has a procedure to force collisions
it has a procedure to stop collisions
What is the purpose of the Aircraft Management System?
It is responsible for looking after the Air Vehicle Systems
It is the Bus Controller for the RS422 Helicopter Data Bus
It is the Bus Monitor on the ARINC 429 Databus
It is responsible for looking after the Electronic Warfare and Weapons Systems
IN The ARINC 664 network, what is the purpose of the Aircraft Data Network Switching Unit
directs the data from one end system to another via Virtual Links
directs the data from one end system to another via Media Interface Adaptors
directs the data from one end system to another via Medium Address Code
Acts as the Bus Controller. Working as a Command and Response protocol
In an ARINC 664 network, what is the purpose of the Media Interface Adaptor?
Interface between the optical media side and the copper media side of the network
Process data to adapt imagery for digital displays
To convert ARINC 664 data frames to ARINC 429 data frames
To convert ARINC 664 data frames into Military Standard 1553B Words
What is the data rate of an ARINC 664 network?
100 Megabytes per second
10 Gigabytes per second
1 Megabyte per second
100 Kilobytes per second
What is the data rate of an ARINC 429 network?
100 Megabytes per second
10 Gigabytes per second
1 Megabyte per second
100 Kilobytes per second
What is the data rate of a Military Standard 1553B network?
100 Megabytes per second
10 Gigabytes per second
1 Megabyte per second
100 Kilobytes per second
What is the data rate of a RS422 serial link?
10 Megabytes per second
1 Gigabytes per second
1 Megabyte per second
100 Kilobytes per second
Transfer of data to the Secure Data Recorder (SDR) and communication to the Database Update (DBU) function if a mismatch is detected is achieved through which aircraft network?
Ethernet
Military Standard 1553B
ARINC 429
RS422
ARINC 664
What is the purpose of the RS 422 serial link?
required for systems that require more frequent refreshing of data.
required for transfer of flight critical data
required for transfer of mission critical data
required for transfer of video data
Select from the following all data that the Mission System passes to the Aircraft Management System.
You may select 1 or more answers
Steering demands for weapon drop
Fault data
Aircraft height
Universal Time (from GPS)
Fuel state
Select from the following all data that the Aircraft Management System passes to the Mission System.
You may select 1 or more answers
Steering demands for weapon drop
Fault data
Aircraft height
Universal Time (from GPS)
Fuel state
Which of the following statements is true for the Tactical Processor.
Select 1 or more correct answers
Bus controller for the Aircraft Management System
Bus controller for the Mission System
Remote terminal on the Aircraft Management System
Bus Monitor on the Aircraft Management System
Remote Terminal on the Mission System
How many terminals can be connected to ARINC 429 network?
20
31
It is only limited by the number of ports on the Switching Unit
Limitless
Which systems are integrated using the ARINC 429 network?
Flight Critical Systems
Systems requiring frequent refreshing
Mission Systems
Analogue Sensors and Discrete signals
Select from the following the elements that make up an ARINC 664 network.
Select 1 or more answers
Switching Unit
End System
Virtual Link
Remote Terminal
Bus Controller
Which systems are integrated using the Military Standard 1553B network?
Flight Critical Systems
Systems requiring frequent refreshing
Navigation and communication systems
Analogue Sensors and Discrete signals
What protocol does a Military Standard 1553B use?
Command and Response
Handshaking and Broadcast
CSMA/CA
CSMA/CD
What does HUMS stand for?
Health and Usage Monitoring System
Heat and Ullage Monitoring System
Heavy Under-slung Movement Sensor
Hollow Undercarriage Mounting Strut
Which of these statements are QDM system functions?
discerns between various metallic particle sizes in the oil
discerns between various metallic particle sizes in the fuel
discerns between various pressures felt in the oil cooling and lubrication system
Monitors oil temperature felt in the oil cooling and lubrication system
constantly checking and logging system fault occurrences of a minor or major nature
Which HUMS sub system is described above?
Status monitoring
In-Built Checkout System (IBCOS)
Usage monitoring
Health monitoring
enables self-test or pilot-initiated checks to check the integrity / operation of a system.
Which HUMS sub system is described above?
Status monitoring
In-Built Checkout System (IBCOS)
Usage monitoring
Health monitoring
maintains records of system /equipment usage for the parameters, used to life or maintain the equipment.
Which HUMS sub system is described above?
Status monitoring
In-Built Checkout System (IBCOS)
Usage monitoring
Health monitoring
the process by which information regarding Vibration, Quantity Debris Monitoring and Fatigue Index Monitoring is recorded and accrued.
Which HUMS sub system is described above?
Status monitoring
In-Built Checkout System (IBCOS)
Usage monitoring
Health monitoring
Select all the systems covered by Usage Monitoring from the list below.
Select 1 or more answers
Transmission and rotors
Communications
Engines
Flight Time
Cockpit Display System
Select from the list below all the systems covered by Health Monitoring.
Select 1 or more answers
Transmission
Engine
Structure
Hydraulics
Pneumatics
What 2 other systems make up Health Monitoring discounting Transmission Vibration Management?
Select 2 correct answers
QDM – Quantitative Debris Monitoring
FI – Fatigue Index Monitoring
Status Monitoring
IBCOS
Usage Monitoring
Where is bearing temperature carried out?
Most critical main rotor gearbox bearings
Most critical tail rotor gearbox bearings
All accessory gearbox bearings
Most critical main rotor gearbox bearings
All gearbox bearings
Which of the following systems can be used within Structural Vibration Monitoring?
Active Control of Structural Response
Rotor Analysis and Diagnostic System
Continuous Vibration Monitoring
Compressor Vibration accelerometers
Turbine Vibration accelerometers
What is the purpose of an accelerometer in a RADS or CVM System?
to detect vibrations
measures acceleration to determine speed and position.
Determines blade track
feedback on blade angle
What is the purpose of an Optical tracker in a RADS or CVM System?
determines speed of rotation of Main Rotor
measures acceleration to determine speed and position.
Senses blade track
feedback on blade angle
What is the purpose of a tachometer in a RADS or CVM System?
detects rotor speeds
measures acceleration to determine speed and position.
Senses blade track
feedback on blade angle
