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Reg No.: Name:

APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
FOURTH SEMESTER B.TECH DEGREE EXAMINATION, APRIL 2018

Course Code: AU206
Course Name: AUTO TRANSMISSION (AU)

Max. Marks: 100 Duration: 3 Hours
PART A
Answer any three full questions, each carries 10 marks Marks
1 Explain the working of a centrifugal clutch. (10)
2 9) Compare the following terms: (4)
i) Tractive Effortand Traction ii) Fractional power and Indicated power
b) List and explain the various resistances offered by a vehicle. (6)
3 Explain the working of a synchromesh gear box. (10)
4 With a neat sketch explain the constructional details of a constant mesh gear box. (10)
PART B
Answer any three full questions, each carries 10 marks
5 Explain about the electromagnetic transmission. (10)
6 With a neat sketch explain the working of Wilson Gear box. (10)
7 Mention the slip characteristics of a fluid flywheel. (10)
8 a) With neat sketches explain the purpose of using a stator in a torque converter. (6)
b) What do you mean by converter locking. (4)
PART C
Answer any four full questions, each carries 10 marks
9 Explain the working of a CVT. (10)
10 Explain about the hydraulic control system for an automatic transmission with (10)
neat sketches.
11 Explain about the principle of operation of an automatic transmission. (10)
12 Give an account of various types of hydrostatic drives. (10)
13 With a neat sketch explain the working of a Janny hydrostatic drive. (10)
14 Explain the principle of operation of a Ward Leonard model Control system. (10)
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