At bottom

At sides only

Both at bottom and sides

Could touch anywhere

Acts when external load is applied

Becomes zero when external load is removed

Is independent of external loads

Is always harmful

Law of gravitation

Archimedes principle

Principle of buoyancy

All of the above

Fuel pump

Governor

Injector

Carburettor

1539 °C

1610 °C

1489 °C

1712 °C