r05412106-avionics

8/8/2019 R05412106-AVIONICS

1/4

Code No: 37157/37158 R05 Set No - 1IV B.Tech I Semester Regular Examinations,Nov/Dec 2009

AVIONICSAeronautical Engineering

Time: 3 hours Max Marks: 80Answer any FIVE Questions

All Questions carry equal marks

1. (a) What is a GYROSCOPE? Explain its properties.

(b) Explain state-of-art RING LASER GYRO(RLG) used by INS. [8+8]

2. (a) What are the 5 sub-assemblies of HUD? Briey explain.(b) Draw a schematic diagram of HUD (Head -Up Display) unit and explain the

functioning of HUD as a Flight Deck Display Device. [8+8]

3. (a) Listout various types of Navigational Instrumentation Display in the FlightDeck.

(b) Comprehensive airborne Instrument in the Cock-pit is called Flight Directorsystem. Explain its details. [8+8]

4. List various hyperbolic navigation systems. Explain the principle and operation of LORAN-C. [4+12]

5. (a) What is the concept of Hijack, Emergency, Distress and Search & Rescue asapplicable to Aeronautical applications?

(b) How the above concept can be implemented using R/T set, SSR, SAT-NAVand Emergency Locator Beacon tted on the aeroplane. [8+8]

6. (a) Explain the methodology of Enhancement of Positional Accuracy of GPSRX.

(b) How the accuracy can be improved to 10-20 meters using Differential GPS(DGPS)?[8+8]

7. Explain the line-of-sight and sky waves. How the propagation and noise character-istics of line-of-sight waves differ from sky waves? [4+4+8]

8. How various software development methodologies have affected the performanceand capability of the modern avionic systems? Explain. [16]

1

8/8/2019 R05412106-AVIONICS

2/4





1. What is TCAS? Describe the principle and working/operation of TCAS. [6+10]

2. (a) Draw a block diagram to explain primary & secondary Surveillance RadarSystem.

(b) Explain various modes of operation including Mode C and S as per ICAOspecications. [8+8]

3. (a) Explain Performance Requirements and Certication of Military Avionic Sys-tems.

(b) List out Avionic System Design Requirements in respect of Modern Civil Air-liner. [8+8]

4. What are hyperbolic navigation systems? Explain the principle and working of DECCA. [8+8]

5. (a) Explain the methodology to enhance the functional/ operational accuracy of Airborne INS on an aircraft.

(b) Electronics unit of INS is vital for aeronatical applications. Explain howNavigation parameters are extracted out of the this INS. [8+8]

6. Give an overview of Russian GLONASS Satellite Navigation System as used forboth civil and military applications. [16]

7. (a) Digital Engine Control System (FADEC) is vital for Auto-Flight, explain thisconcept in any modern state-of-art aircraft.

(b) How this can be integrated with Flight Management Systems? [8+8]

8. Explain the various display system architectures with the help of block diagramsfor a typical electronic ight instrument display. [16]

2

8/8/2019 R05412106-AVIONICS

3/4





1. Using DATA BUS concept, explain Data Transfer Methodology with the helpof simple schematic Layout amongst avionic sub-Systems. [16]

2. What is Distance Measuring Equipment? Describe its operation and use. [12+4]

3. What do you mean by ight deck of an aircraft? Discuss the development of amodern ight deck right from the beginning. [4+12]

4. (a) What are the specialities of SSR used for civil airliner?

(b) How the system can be utilized on TCAS - I, TCAS - II & TCAS - III.[8+8]

5. Give an overview of American GPS Satellite Navigation System for both civiland military users. [16]

6. (a) List out basic differences (functional) between Strapped Down and StablePlatform INS.

(b) Why Strapped Down INS is generally not used for Aircraft Navigation?[8+8]

7. What are special navigation systems? List and explain any two special navigationsystems used in aerospace applications. [4+6+6]

8. Explain the principle and operation of UHF communication system. Explain itsapplicability. Compare it with VHF communication system. [8+2+6]

3

8/8/2019 R05412106-AVIONICS

4/4





1. Write descriptive notes on the following:

(a) Antennas

(b) CVR. [8+8]2. (a) Dene and explain the concept of VHF omni Range (VOR).

(b) Differentiate celestial, Radio-Radar, Electronic Navigation. [8+8]

3. (a) Explain the salient feactures and operating procedure of Surveillance RadarElement.

(b) What is function of Pecision Approach Radar (PAR) and the PAR displayboth in Azimuth and Elevation? [8+8]

4. Explain the following display system architectures with the help of diagrams.

(a) Dumb display architecture(b) Semi-smart display architecture

(c) Fully smart display architecture. [6+5+5]

5. (a) Draw a schematic lay-out of a modern civil transport airplane Avionics archi-tecture using triplex redundant ARINC-429 DATA Bus.

(b) Using the above schematic layout explain Boeing-777 Airplane Control andManagement System. [8+8]

6. (a) Listout GPS signal characteristics.(b) How GLONASS characteristics differ from that of GPS? [8+8]

7. Differentiate Analytical Frame of Reference of Strapped Down INS, Space Sta-bilized INS and Stabilized, Levelled & Initialized Platform version of INS withits applications. [16]

8. Discuss the following task management avionic systems.

(a) Navigation management system(b) Autopilots and ight management system. [7+9]

4

r05412106-avionics

Documents