Rr412105 Aircraft Systems And Instruments 2f5v1x

Set No. 1

Code No: RR412105

IV B.Tech I Semester Regular Examinations, November 2007 AIRCRAFT SYSTEMS AND INSTRUMENTS (Aeronautical Engineering) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ⋆⋆⋆⋆⋆ 1. Write short notes on the following:

[4 × 4]

(a) Pneumatic controller for fuel metering (b) Push Pull rods (c) Gear system (d) Characteristics of hydraulic fluid. 2. (a) Explain in detail the Brake system of an aircraft.

[8]

(b) Draw the schematic of an Anti-skid system of a transport airplane and explain its working. [8] 3. (a) Explain the concept of “Active Control Technology” and how an auto-pilot system works incorporating engine performance data computer using Control Display Unit (CDU). [10] (b) Explain how the landing system works in an aircraft system. 4. (a) What is meant by Fuel sediments? (b) Explain various quality check tests to be carried out on Aviation fuel. 5. (a) Explain the functioning of a 28 volt aircraft starter-generator.

[6] [6] [10] [8]

(b) Explain how voltage regulation is achieved in a carbon pile voltage regulator. [8] 6. (a) List out various steps involved in servicing an aircraft oxygen system.

[8]

(b) With the help of a neat diagram, explain the working of CO2 fire extinguisher. [8] 7. (a) What is the meant by ‘Com Swinging’ ? (b) Explain the functioning of ‘Direction Indicator’ in an aircraft. 8. Write short notes on the following:

[8] [8] [4 × 4]

(a) Engine Tachometer (b) Turbine Gas Temperature (TGT) measuring device (c) Resistance type fuel quantity indicators (d) Bourdon tube pressure measuring instrument. ⋆⋆⋆⋆⋆ 1 of 1

Set No. 2

Code No: RR412105

IV B.Tech I Semester Regular Examinations, November 2007 AIRCRAFT SYSTEMS AND INSTRUMENTS (Aeronautical Engineering) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ⋆⋆⋆⋆⋆ 1. (a) What are the advantages and disadvantages of hydraulic system?

[8]

(b) Explain in detail the working principle of any hydraulic system employed in aircraft. [8] 2. (a) Explain the working of air braking system.

[8]

(b) Explain the importance of shock absorbers.

[8]

3. Write short notes on the following:

[16]

(a) Control Display Unit (CDU). (b) Digital control. (c) Fly-by-wire system. (d) Stall warning indicator. 4. With the help of a simple functional diagram, explain Electronic Integrated Centralized Aircraft Monitoring (EICAM) system using control-display unit (CDU). [16] 5. (a) What are the advantages of bush less DC machine in Aircraft Electric System? [8] (b) Explain Ignition-starter of a jet aircraft with the help of a simple sketch. [8] 6. (a) Draw the diagram of a vapour cycle cooling system and explain. (b) How does a basic air cycle system differs?

[8] [8]

7. Draw a detailed pictorial view of Flight Director System and explain how it helps in achieving integrated Navigation in a modern aircraft. [16] 8. Write short notes on the following:

[4 × 4]

(a) Variable pitch propeller (b) Propeller control (c) Electronic Engine controller (EEC) (d) JPT gauge. ⋆⋆⋆⋆⋆

1 of 1

Set No. 3

Code No: RR412105

IV B.Tech I Semester Regular Examinations, November 2007 AIRCRAFT SYSTEMS AND INSTRUMENTS (Aeronautical Engineering) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ⋆⋆⋆⋆⋆ 1. (a) Explain different modes of operation of hydraulic controllers. (b) How the power can be activated in aircraft engines? 2. Write short notes on the following:

[8] [8] [16]

(a) Aircraft brake system. (b) Antiskid mechanism. (c) Landing gear safety devices. (d) Nose wheel steering system. 3. (a) What are the salient features of modern airplane control system? (b) Explain the modern state-of-art in Control and Display technology. 4. (a) Explain the general operation of FFCU.

[8] [8] [8]

(b) Explain in detail how fuel spray enhances the efficiency of engine operation. [8] 5. (a) Explain the working principle of starting system used in Jet and Piston engines. [8] (b) Describe different starting systems used in aircrafts. 6. Write short notes on the following:

[8] [16]

(a) Oxygen system. (b) Cabin pressurization. (c) Basic vapor cycle. (d) Smoke detector. 7. (a) Explain the basics of an international standard Atmosphere (ISA) and

[10]

(b) Explain how it affects the functioning of an altimeter with the help of a diagram. [6] 8. Write short notes on the following:

[4 × 4]

(a) Mechanical type fuel quantity indicators (b) Oil pressure indicator (c) Tachometer 1 of 2

Set No. 3

Code No: RR412105 (d) Exhaust temperature indicator. ⋆⋆⋆⋆⋆

2 of 2

Set No. 4

Code No: RR412105

IV B.Tech I Semester Regular Examinations, November 2007 AIRCRAFT SYSTEMS AND INSTRUMENTS (Aeronautical Engineering) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ⋆⋆⋆⋆⋆ 1. (a) What are the advantages and disadvantages of hydraulic system?

[8]

(b) Explain in detail the working principle of any hydraulic system employed in aircraft. [8] 2. (a) Explain various configurations of landing gears employed in majority of the aircrafts. [8] (b) With the help of a neat sketch explain the function of Air-oil shock oleoleg. [8] 3. Depict the block diagram of an automated flight management system of a civil airliner and explain its salient features. [16] 4. Write short notes on the following:

[16]

(a) Pressure feed fuel system. (b) Fuel cross -feed system. (c) Fuel filters. (d) Under wing sight gage. 5. (a) Differentiate between LT ignition and HT ignition systems.

[8]

(b) Draw a wiring diagram for HT ignition system for a turbo fan engine and explain. [8] 6. (a) Explain the working principle of evaporative refrigeration system with a neat sketch. [8] (b) How the fire can be controlled in an aircraft system. 7. Write short notes on the following:

[8] [16]

(a) Directional Gyro. (b) Pilot-static probe. (c) Air speed Indicator. (d) Stall warning indicator. 8. Write short notes on the following:

[4 × 4]

(a) Mechanical type fuel quantity indicators 1 of 2

Set No. 4

Code No: RR412105 (b) Oil pressure indicator (c) Tachometer (d) Exhaust temperature indicator. ⋆⋆⋆⋆⋆

2 of 2