Reg No.:

Max. Marks: 100

10

11

12

13

14

a)
b)

a)
b)

a)

b)

a)
b)

E7248

Total Pages: 1

Name:

APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
THIRD SEMESTER B.TECH DEGREE EXAMINATION, DECEMBER 2017

Course Code: AU203
Course Name: AUTO CHASSIS (AU)

PART A
Answer any three full questions, each carries 10 marks.
Draw the simple sketch of a chassis layout and state the functions of each member.
What are the different types of Rims used in automobiles? Explain with neat figures.
Explain the types of chassis layout with reference to the location of power plant,
with merits and demerits of each of them.
Describe about stabilizer and radius rods used in automobiles.
With neat figure explain any two types of constant velocity universal joint.
Explain the construction and working of twin speed final drive with neat sketches.
What are the functions of propeller shaft and universal joints?
PART B
Answer any three full questions, each carries 10 marks.
Explain the construction and working of telescopic shock absorber with neat figures.
Explain any two type of independent suspension system used in front wheels with
neat figures.
What are the different types of springs used in suspension systems?
Compare between the different axle hub arrangements in rear axle.
Explain the construction and working of a Non slip differential with neat figures.
PART C
Answer any four full questions, each carries 10 marks.
What are the advantages of hydraulic brake system over mechanical brake system?
What are ABS (Antilock Braking System) and EBD (Electronic Brake force
Distribution)? When would they useful? How do they work? What are their
advantages and limitations?
What are the different types of Disc brakes used in vehicles? Explain two types of
disc brakeswith construction and working, based on disc brake pad support
arrangements.
Derive the expression for braking efficiency if initial braking speed and braking
distance are known.
Determine the braking efficiency of vehicle if the brakes bring the vehicle from 60
kmph in ೩ distance of 15 meters.
What are the significance of front wheel geometry? Explain all of them in detail
with sketches.
Describe how the true rolling is achieved through Ackerman’s steering principle.
With neat sketch explain the Ackerman’s linkage geometry.
What are the differenttypes of steering gears used in automobiles? Explain rack and
pinion steering gear box and recirculating ball type steering gear box with neat

figures.
111;

Page 1௦11

Duration: 3 Hours

Marks

(6)
(4)
(6)
(4)
(10)

(7)
(3)

(10)
(10)
(6)

(4)
(10)

(3)
(7)

(10)

(8)
(2)
(10)
(5)

(5)
(10)