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Friday, 21 September 2012

Automotive electronics-model question paper for Diploma/B.E/B.Tech

1(a) Write a note on high-voltage circuit and distribution in an engine. (6 Marks)
(b) Explain the working of proportional integral controller. (6 Marks)
(c) Briefly explain any 4 major categories of automotive electronic systems. (8 Marks)
2(a) Explain in detail the working and applications of operational amplifiers. (8 Marks)
(b) Differentiate between R-S flip-flop and J-K flip-flop. (8 Marks)
(c) Find the binary sum of 0110 and 0010. Subtract 0101 from 1110. (4 Marks)
3(a) Write a note on condition code register of microcomputer. (4 Marks)
(b) Explain in detail the role of digital to analog converter in a microcomputer. (6 Marks)
(c) What is brake-specific fuel consumption?(4 Marks)
(d) Explain the concept of engine mapping. (6 marks)
4(a) Write a note on engine crankshaft angular position sensor. (6 Marks)
(b) What is a thermistor? Explain its role in automotive electronics system. (6 Marks)
(c) Explain the working of exhaust gas recirculation actuator. (4 Marks)
(d) What is variable valve timing? (4 Marks)
5 (a) Write a note on control modes for fuel control. (6 Marks)
(b) What is acceleration enrichment? (4 Marks)
(c) Explain the term closed-loop ignition timing. (6 Marks)
(d) What do you mean by hybrid vehicle powertrain control? (4 Marks)
6(a) Using a neat figure, explain the working of vacuum operated throttle actuator. (8 Marks)
(b) Write a note on antilock braking system. (6 Marks)
(c)Explain the working of VFD display used in automotive instrumentation. (6 Marks)
7(a) Write a detailed note on on-board diagnostics of automotive systems. (8 Marks)
(b)Write a note on computerized automotive maintenance system. (8 Marks)
(c) What is occupant protection? Explain. (4 Marks)
8(a)Write notes on the following:
(i) Electric and hybrid vehicles   (ii) Fuel cell powered cars   (iii) Speech synthesis
(iv) Telematics   (v) Stability augmentation   (20 Marks)

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