Chassis, Body and Transmission, Question Paper of B.Tech AE (D) 4th Semester, Download Previous Years Question Paper 3

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CHASIS BODY AND TRASMISSION

5^th Exam/AE/9321/

Duration : 3 hrs.

1.     Write the correct answer from the choices given below each.

a.     Lateral bending of the chassis frame side member may be caused on account of

                                                             i.      Weight of passengers

                                                           ii.      Side wind

                                                        iii.      Engine torque

                                                        iv.      Braking torque

b.     The most effective section against bending is:

                                                             i.      Rectangular bar

                                                           ii.      Round bar

                                                        iii.      Round hollow tube

                                                        iv.      Square hollow section

c.      The coefficient of friction for the clutch facing is approximately:

                                                             i.      0.1

                                                           ii.      0.4

                                                        iii.      0.8

                                                        iv.      1.2

d.     The clutch is located below the transmission and the

                                                             i.      Engine

                                                           ii.      Rear Axle

                                                        iii.      Propeller shaft

                                                        iv.      Differential

e.      The central gear of an epicyclical gear set is called a:

                                                             i.      Rind gear

                                                           ii.      Sun gear

                                                        iii.      Planet gear

                                                        iv.      Internal gear

f.       The component of the torque converter that allows multiplications of torque is the

                                                             i.      Turbine

                                                           ii.      Impeller

                                                        iii.      Pump

                                                        iv.      Stator

g.     The central portion of the propeller shaft is made from a

                                                             i.      Steel shaft

                                                           ii.      Gun metal shaft

                                                        iii.      Steel tube

                                                        iv.      Cast iron rod.

h.     The type of rear axie used on truck is :

                                                             i.      Semi gloating

                                                           ii.      Fully floating

                                                        iii.      Three quarter floating

                                                        iv.      None of these

i.       The term ‘ply rating ‘ with reference to a tyre refers to the :

                                                             i.      Actual number of plies

                                                           ii.      Recommended inflation pressure

                                                        iii.      Aspect ratio

                                                        iv.      Rated strength

j.       Tread distortion is least on:

                                                             i.      Redial ply tires

                                                           ii.      Cross ply tyres

                                                        iii.      Cross ply betted tyres

                                                        iv.      None of these

2.       

a.     Explain the main function of a chassis frame

b.     Discuss the various loads acting on a chassis frame

3.     Explain the working of a single plate clutch with the help of simple diagram.

4.     With the help of a simple sketch, discuss the process of torque transmission in a fluid fly wheel. Discuss advantages and disadvantages of fluid fly wheel.

5.     What are the various resistances offered to a vehicle in motion. Explain with the help of simple relationship diagram between speed and resistance.

6.     Discuss the various types of trouble commonly experienced in ithe propeller shaft.

7.     State the reasons for the following type defects :

a.     Rim bruise

b.     Side walls scuffing

c.      Tread cracking

d.     Ply separation

e.      Uneven wear

8.     Write short note on any two:

a.     Materials used for chassis frames

b.     Wet and dry clutch

c.      Synchromesh gear box.

d.     Hotchkiss drive

e.      Fully floating axle

f.       Retreading of tyres