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How much weight is put on the seat of the driver to replace the driver to determine centre of gravity?

(a) 100 kg

(b) 75 kg

(c) 25 kg

(d) 55 kg

I got this question in an online interview.

The origin of the question is Tractor Testing topic in chapter Farm Tractor of Farm Machinery

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The correct option is (b) 75 kg

For explanation: The slope of the land has got effects on tractive effort and stability of the tractor. To evaluate this effect, the centre of gravity of the tractor should be determined with and without ballast with fuel tank full, and lubricating oil up to desired mark. A weight of 75 kg is put on the seat of the driver to replace the driver.

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