Roll No…
CHASIS BODY AND
TRASMISSION
4th
Exam/AE/9308/
Duration : 3 hrs.
Note : attempt any five questions
1.
a.
What is the purpose of a clutch in an
automobile?
b.
Give brief description of free wheel mechanism
c.
What are the functions of a propeller shaft?
d.
How do the tubeless tyres work?
e.
What are the conditions for wheel to be
dynamically balanced?
2.
a.
Discuss various alternative arrangements used
for engine position and drives in the layout of vehicles chassis.
b.
Give constructional details of carboy.
c.
Explain
the purpose of body streamlining and protective coatings.
3.
Differentiate between
a.
Single plate and multiplayer clutches
b.
Clutches and couplings
c.
Centrifugal and semi centrifugal cluches.
4.
Describe briefly the function and working of
a.
Sliding mesh
b.
Constant mesh
c.
Synchromesh gear boxes
5.
a.
Explain the necessity and working of spicyclic gear box and
automatic transmission.
b.
Discuss common faults in a transmission system?
How can they be removed?
6.
a.
What is a universal joint and what are constant
velocity joints?
b.
Explain the working of a differential and its
principle.
c.
Give a
brief description of Hotchkiss drive.
7.
a.
Why car casing of tyres is done? Describe
various types of crevassing
b.
What are the causes of excessive wear of tyres?
How does it affect vehicle stability.
8.
Write short note on any three.
a.
Retreading of tyres
b.
Semi floating fully floating and three quarter
floating rear axles
c.
Auxiliary gear box torque converter
d.
Construction of pneumatic tyres
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