Jawaharlal Nehru Technological University Hyderabad
Jawaharlal Nehru Technological University Hyderabad B.Tech IV AUTOMOBILE ENGINEERING Previous Question Paper (July - 2023 - R16)
Question paper consists of Part A, Part B. Part A is compulsory, which carries 25 marks. In Part A, Answer all questions. 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
Draw the layout of Chassis of an Automobile.
Answer
The chassis layout consists of the frame, engine, transmission system (clutch, gearbox, propeller shaft, differential, and axles), steering system, braking system, and suspension system. These components are mounted on the frame to form the complete vehicle structure.
Write the requirements of diesel injection systems.
Answer
The requirements for a diesel injection system include: 1) Metering the exact quantity of fuel for different load and speed conditions, 2) Timing the injection accurately to ensure combustion efficiency, 3) Atomizing the fuel into fine droplets for rapid mixing with air, and 4) Distributing the fuel uniformly within the combustion chamber.
Write a short note on air cooling system.
Answer
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Explain the working of solenoid switch.
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Explain the working principles of clutches.
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Write the objectives of suspension systems.
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Write the requirements of brake fluid.
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Write a short note on different steering mechanism.
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Write a short note on pollution control.
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What are the emissions from Automobiles?
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Part B
Explain the working of Gasoline Direct Injection system (GDI) with neat sketch.
Answer
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Explain the working of any one type of lubrication system with neat sketch.
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Explain the working of battery ignition system with neat sketch.
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Discuss the working of wiper with suitable sketch.
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Discribe the working of synchro mesh gearbox with suitable diagram.
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Explain the working of Double Wishbone Independent suspension system.
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With the help of neat sketch, explain Hydraulic brake system.
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Discuss Davis steering mechanism in detail with line diagram.
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Explain different alternative sources of energy for automobiles in detail.
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Discuss in detail the Standard Vehicle maintenance practice and its importance.
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