Jawaharlal Nehru Technological University Hyderabad
Jawaharlal Nehru Technological University Hyderabad B.Tech III AIRCRAFT SYSTEMS AND CONTROLS Previous Question Paper (January/February - 2023 - R18)
Note: i) Question paper consists of Part A, Part B. ii) Part A is compulsory, which carries 25 marks. In Part A, Answer all questions. iii) In Part B, Answer any one question from each unit. Each question carries 10 marks and may have a, b as sub questions.
Part A
Explain about any one mission system of transport aircraft.
Answer
The Flight Management System (FMS) is a critical mission system that automates flight planning and navigation. It integrates navigation data, performance parameters, and fuel management to optimize flight paths, reducing pilot workload and ensuring fuel efficiency during cruise.
Enumerate levels of integration of aircraft systems at component levels.
Answer
Integration at the component level involves three main levels:
- Physical Integration: Combining mechanical parts into a single line-replaceable unit (LRU).
- Functional Integration: Combining different control functions within a single processor or controller.
- Data Integration: Sharing sensor data across multiple systems via a common data bus to reduce wiring and weight.
Brief about cabin pressurization operation.
Answer
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Explain molecular sieve oxygen concentrator.
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Briefly describe how the landing gear works.
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How does an accumulator function?
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Describe briefly the workings of fuel cooling.
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Explain about functions of sensors in engine control system.
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List out the typical start sequence.
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What are the different types of actuations?
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Part B
Discuss the aspects of safety and integrity of aircraft for any 4 systems.
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What are the level of integration involved in aircraft production?
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Explain the working of a cabin pressurization system with a neat sketch.
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Explain the working of a pneumatic system with a neat sketch.
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Discuss the working principle of a hydraulic system with a neat sketch.
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Explain the landing gear system operation with neat sketches.
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Explain about engine as a source of high-pressure operating techniques.
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Explain the full authority and limited authority control systems.
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Explain the flight primary and secondary flight controls for civil and fighter aircraft.
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Explain in detail control of fuel flow and air flow.
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