S.B. Roll No. _____________
CHASSIS, BODY
& TRANSMISSION
4th
Exam/Auto/9308/
Time 3 hrs
Note : Q No 1 is COMPULSORY
From remaining attempt four questions, draw neat sketches
wherever necessary
Q1. COMPULSORY
Write the correct answer from the choices given
(a.) The
number of points at which the engine-clutch-gear box unit is supported on the
chassis frame isone, two, three, four
(b) The Chassis frame may get distorted to a parallelogram shape due
to-weight of the vehicle, weight of the passengers, cornering force, wheel
impact with obstacles on the road.
(c) A clutch is
usually designed to transmit maximum torque, which is - equal to the maximum
engine torque, 80% of the maximum engine torque, 150% of the maximum engine
torque, none of these
(d) The inertia
of the rotating parts of the clutch should be- minimum, maximum, zero, none of
these.
(e) In a a
simple planetary gear set, the out put member to increase torque is always
the-sungear, ring gear, planet carrier, none of these.
(f) In a simple
epicyclic gear set,the output member to increase torque in reverse is always
the- ring gear, planet carrier, sun gear, none of these.
(g) Critical
whirling speed of a shaft is increased by- increasing its length, decreasing
its length, decreasing its diameter, none of these.
(h) The
function of a universal joint is to allow the propeller shaft to - change
length, bend sideways , transfer torque at an angle, change the inclination.
(i) The type of
wheel which cannot be used with a tube less tire is- disc wheel, wire wheel ,
light alloy wheel, composite wheel.
(j) The types
of wheels preferred in sports cars are- disc wheels, wire wheels, magnesium
alloy wheels, aluminium alloy wheels.
Q2.
(a)Name the components of an automobile
chassis suitably mounted
(b) Classify the chassis of an
automobile with brief description of each
Q 3. What is
the function of a clutch? Discuss the various factors affecting the TORQUE
Transmission in a Clutch
Q4. With the help of neat sketch
explain the process of Torque Transmission in a Fluid Flywheel. Also discuss
advantages and disadvantages of Fluid Flywheel
Q5. Discuss the functions and necessity of Transmission
System
Q6. Explain with the help of neat diagram the Construction
of a Propeller Shaft.
Q7. Discuss the importance of Wheels & Tires in an
Automobile and mention the requirements of an automobile wheel.
Q8. Write short notes on any TWO:-
(a) Tubeless Tyres
(b) Causes of excessive tyre wear
(c) Semi floating & fully
floating axles
(d) Centrifugal Clutches
(e) Body Upholstery.
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North India Campus