1) (i) Sketch the following chassis framesa. Commercial vehicle frameb. Two wheeler frame

and explain the construction details.

(ii) Measure the cushioning angles of the given driver seat and also measure the seat height . Find out the percentage of improvement of pedal force.

2) Dismantle the given engine and study the components pertaining to air intake system, fuel supply system, lubrication system and engine cooling arrangement.

3) Measure the dimensions of the following engine componentsa. Crank shaftb. Cam shaftc. Pistond. Cylinder bore

4) Dismantle diesel injection pump, diesel injector and diesel filters. Sketch their exploded view and write their function.

5) Find out the steering ratio of the given steering gearbox, dismantle the assembly and indicate the type of the steering system and name the individual components. Brief the working of the system.

6) Sketch the following suspension systema. Mac pherson front individual systemb. Laminated leaf spring assemblyc. Cross sectional view of shock absorber

Explain the function of the above system and measure the road leaf spring camber value.

7) Sketch the following items and write their features.a. Spoke wheelb. Rim wheelc. Light alloy wheeld. Cross sectional view of tube tyre

8) Measure the length of the given propeller shaft and study the significance of the balancing.Sketch Hook’s joint and Rzeppa joint and differentiate their function.

9) Dismantle the given rear axle and sketch the assembly of crown wheel pinion and indicate their

a. Tail pinion depthb. Crown wheel pinion backlashc. Method of preloading of tail pinion bearing and differential side bearingd. Method of adjusting hub play.

10) Draw the layout of the following circuitsa. Air intake systemb. Fuel supply systemc. Engine lubrication systemd. Engine cooling system

and indicate the important components.

11) Study the following fuel supply system and analyze the merits and demeritsa. CRDIb. MPFIc. Carburettor

12) Draw the layout of Vacuum assisted hydraulic brake and Full air brake and Study its function.

13) Carry out the brake adjustments and bleeding operation. Measure the run-out of the wheel rim.

14) Study the following clutcha. Coil spring typeb. Diaphragm spring typec. Centrifugal clutchd. Multi plate clutch