JNTU
JNTU B.Tech III AIRCRAFT SYSTEMS Previous Question Paper (May - 2019 - R15)
Note: This question paper contains two parts A and B. Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit. Each question carries 10 marks.
Part A
What are the basic mission requirements?
Answer
Basic mission requirements define the aircraft's operational envelope, including payload capacity, range, speed, endurance, and the ability to operate from specific airfield environments while maintaining safety and reliability standards.
Write a short note on system safety and integrity.
Answer
System safety involves designing aircraft systems to prevent hazardous conditions through redundancy, fail-safe mechanisms, and rigorous testing. Integrity refers to the system's ability to perform its intended function reliably under all specified operating conditions without catastrophic failure, ensuring the airworthiness of the aircraft.
Explain the functions of control column and rudder pedal.
Answer
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List the sources of power storage in aircraft electrical system.
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State the requirement of accumulator in hydraulic system.
Answer
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Discuss on operating fluid pressures with suitable examples.
Answer
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What is the need for cabin pressurization?
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What are the principle heat sources in aircraft?
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Define fuel inserting process.
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What are various means of controlling fuel flow?
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Part B
Explain how the operating environmental conditions play a significant role in aircraft system performance.
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Discuss the avionics systems in small trainer aircraft. Notify few specifications of avionics systems.
Answer
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Describe in detail, the interfaces and design drivers for a system with suitable block diagrams.
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Illustrate the electrical loads in a Commercial aircraft. Explain in detail the load management system with the help of flow chart.
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Explain the concept of Fly-By-Wire (FBW) in a civilian aircraft. Write the salient features of FBW over conventional control technology.
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Explain the following terms related to aircraft electrical systems:
a) Cyclo-converter
b) Variable Speed Constant Frequency (VSCF).
Answer
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What are the desired properties of a hydraulic fluid? Explain in detail with few examples.
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Discuss in detail the advanced actuation techniques which are under implementation for Boeing series.
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Write a detailed note on the following with suitable sketches:
a) Hydraulic piping
b) Hydraulic Pump.
Answer
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How the air can be distributed in aircraft? Explain the types of Air Distribution system with neat sketches. Is it similar for both Civil and Military aircrafts?
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Explain the working principle of evaporative refrigeration system with a neat sketch.
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What do you mean by anti-icing? Illustrate the procedure of wing anti icing with sketches.
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Write the differences between limited and full authority engine control system with neat schematic layouts.
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Describe the operating principle of aircraft gas turbine engine with neat sketches.
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List out basic inputs and outputs of engine control system. Explain any two inputs and outputs with examples.
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