IMPORTANT INTERVIEW QUESTION

1.)Explain the reason that why big tyres are used in rear of vehicles.

• Large tyres provide larger surface area touching the ground, thus providing the more pulling power. Basically tractors have larger rear tyres because tractors don’t have to operate at higher speeds, thus getting the same ground speed with larger tyres. Moreover gear ratios don’t have to be as high as b/c of the tyres.

2.)What is kingpin offset? State some of its application.

• The kingpin offset is the part, basically called as pivot used in the steering of the vehicles. This offset helps in rotating of the steering and thus it’s very useful in steering mechanism of the cars.
• Applications: This is also used to measure scrub radius with the help of geometric parameters of wheel plane above and below ground level.
• It provides directional stability to the vehicles when it i combined with the caster.

3.)Explain the basic difference between BS2 and BS3 engine.

• The basic difference of BS2 and BS3 engines is the presence of catalytic convertor. Catalytic convertor is present in BS3 engine which helps in reducing the formation of HC and CO. While in BS2 engine, no catalytic convertor is present which forms HC and CO. Thus in BS3 engine there is no emission of harmful CO and HC. The full form of BS is bharat stage, which is a standard of emission in India.