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Questions and Answers
Why was standardization of instruments in the cockpit necessary?
If a system works and shows normal function, it is associated with which color?
What do the Primary Flight Display (PFD) and Navigation Display (ND) form?
What is a cockpit layout called where analogue instruments are replaced by digital displays?
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Apart from standardized arrangements, what else is organized along a standard?
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How many numbers comprise the binary system?
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What are the main parts of a fiber-optic cable?
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When two glass fibers are connected, what is the term used for this connection?
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What happens to the liquid crystal layer in a liquid crystal display when a voltage is applied?
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What is responsible for producing the picture on the screen of a Cathode Ray Tube (CRT)?
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What is a common problem associated with liquid crystal displays in aviation?
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What is the primary use of CRT screens in aviation?
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How can the accuracy of a GPS system for precision approaches be increased?
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Which of the following is not a part of the Flight Management System (FMS)?
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What does IMA stand for in the context of aircraft systems?
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Which system is responsible for adjusting cabin lights, emergency signals, and doors status in an aircraft?
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Which communication tool is used by ATIMS (Air Traffic and Information Management System) for data transmission?
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How do Electronic Instrument Systems develop around certain installations like TV and radio transmitters?
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What is the standard arrangement of instruments for speed, attitude, altitude, and heading called?
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What do the Primary Flight Display (PFD) and the Navigation Display (ND) form?
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Where does the Flight Management System (FMS) mainly display its information?
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If a system requires attention, what color is used to indicate it?
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What information is at least displayed on the Primary Flight Display (PFD)?
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How many numbers comprise the binary system?
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What does a subscripted number 2 on the rear of a number signify?
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In the sequence 3210, what is the equivalent value?
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When converting analog into digital data, what is the main factor regarding precision?
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What is a 'bus' in computer architecture?
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In an asynchronous data transmission, how is each character generally handled?
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What do ARINC 429 bus system data words consist of?
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Study Notes
Electronic Instrument Systems
- Standardization of instruments in the cockpit was necessary due to the growing complexity of aircraft and the need to fly internationally.
- A system that works and shows normal function is associated with the green color.
- The Primary Flight Display (PFD) and Navigation Display (ND) form the Electronic Flight Information System (EFIS).
- A cockpit layout where analogue instruments are replaced by digital displays is called a Glass Cockpit.
- Apart from arrangements, visual annunciation panel layouts, color for warnings and cautions, and audible alarms like bells and chimes are also standardized.
Numbering Systems
- The binary system comprises only two numbers: 0 and 1.
- A fiber-optic cable consists of Core, Cladding, and Jacket.
- When two strands or two glass fibers are connected, it is called a splice.
Electronic Displays
- In a liquid crystal display, the liquid crystal layer changes its characteristics when a voltage is applied, allowing the crystal to align and polarize the light, consequently passing through the polarization filter.
- The picture on the screen of a Cathode Ray Tube (CRT) is produced by the impact of the accelerated electrons.
- In aviation, liquid crystal displays are highly temperature sensitive.
- The main use for CRT screens in aviation is for displays of the electronic flight information system (EFIS).
Electrostatic Sensitive Devices
- ESD stands for Electrostatic Discharge.
- Electrostatic fields can develop around TV and radio transmitters, radar and satellite communication systems, and broadcasting antennas.
Typical Electronic/Digital Aircraft Systems
- GPS system accuracy can be increased for precision approaches by using differential GPS.
- The Flight Management System (FMS) consists of the flight management computer (FMC), but not the automatic flight control system (AFCS) or the fully authorized digital engine control (FADEC).
- Integrated Modular Avionics (IMA) refers to an airworthy, computer electronic unit consisting of standardized components and interfaces in hardware and software for communication between the various systems in an aircraft.
- The system used for adjusting cabin lights, emergency signals, doors status, etc. is the Cabin Intercommunication Data System (CID).
- ATIMS (Air Traffic and Information Management System) uses the Internet to send and receive data.
Additional Notes
- The standard arrangement of the instruments for speed, attitude, altitude, and heading is called the Basic T.
- If a system requires attention, it is announced with the red color.
- The Primary Flight Display (PFD) shows at least speed, altitude, attitude, and heading.
- The binary system comprises only two numbers: 0 and 1.
- The device that converts analog data to digital data is called an A/D Converter.
- In a synchronous data transmission, several characters are transmitted together in a block.
- A Unit, which receives or transmits data by using the necessary address information in a bus system, is called a Responsive bus.
- In an asynchronous data transmission, every character is transmitted individually and sent with one or two stop bits.
- In an ARINC 429 bus system, every data word consists of 32 bits.
- A correct digital transmission can be ensured by using the same internal clock for transmitter and receiver.
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Description
Test your knowledge on electronic instrument systems in the cockpit with this quiz. Explore the reasons behind the standardization of instruments and their importance in aviation.
