Download VTU BE 2020 Jan ME Question Paper 15 Scheme 6th Sem 15ME655 Automobile Engineering

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Note: Answer any FIVE full questions, choosing ONE full question from each module.
Module-1
? 1 a. Explain the different types of combustion chambers used in CI engine. (08 Marks)
b. Explain with a neat diagram the lubricating system used in a multi-cylinder engine.
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(08 Marks)
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? 2 a. Explain the significance of valve timing in compression ignition engine with a suitable

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(08 Marks)

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b. Discuss the working of HCCI engine. (08 Marks)
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Module-2

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3 a. Explain with a neat sketch the working of torque converter.
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(08 Marks)
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b. Explain Hotchkiss drive with a neat sketch. (08 Marks)

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4 a. Explain with a neat sketch the working of hydraulic brake system.
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(08 Marks)

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b. Explain with a neat sketch the working of synchronizing unit of a synchromesh gear box. .
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(08 Marks)
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;3 5 a. Explain with a neat diagram the working of battery ignition system of a multi-cylinder

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engine. (08 Marks)
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b. Explain with a neat sketch working of air suspension system.
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(08 Marks)

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O - 6 a. Explain with a neat diagram the working of electronic ignition system. (08 Marks)

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b. Explain the working of power steering system with a diagram. (08 Marks)

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Module-4
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? 7 a. Explain the working of common Rail Direct Injection system (RDI) with a neat diagram.

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(08 Marks)
b. Explain the working of turbocharger with a neat diagram.
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(08 Marks)
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8 a. Explain the Air fuel ratios for different speeds of a Car with a suitable diagram.
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(08 Marks)
E b. List the alternate fuels for compression ignition engine and explain any two.

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(08 Marks)
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Module-5
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9 a. Explain how EGR (Exhaust Gas Recirculation) system reduces emission of NO (Oxide of
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o Nitrogen).
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(08 Marks)
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4 b. Explain with a neat diagram, evoportier loss control system. (08 Marks)

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10 a. Explain the working of catalytic converter with the help of a neat sketch. (08 Marks)
b. List the different emission for compression ignition engine ancLe.x

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alain the reasons for the
formation of these emissions. (08 Marks) i
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