Multiple choice Which of the following fuels is used in heavy motor vehicles like trucks and tractors? Petrol Kerosene oil Diesel Lubricating oil Reveal answer Fill a bubble to check yourself C Correct answer Explanation Petrol is comparatively costlier than the other fuels. Kerosene oil is inflammable and easily catches fire. Lubricating oil is used to lubricate the engine of automobiles. Diesel is cheaper and produces large amount of energy to run heavy vehicles.