[amp_mcq option1=”80 â 100″ option2=”80 â 90″ option3=”90 â 100″ option4=”> 100 ” correct=”option1″]
The correct answer is (a) 80 â 100.
Octane number is a measure of a fuel’s ability to resist knocking in an internal combustion engine. The higher the octane number, the more resistant the fuel is to knocking. Natural gas has an octane number of 80-100, which means it is a good fuel for use in internal combustion engines.
Option (b) is incorrect because natural gas has an octane number of 80-100, not 80-90.
Option (c) is incorrect because natural gas has an octane number of 80-100, not 90-100.
Option (d) is incorrect because natural gas has an octane number of 80-100, not greater than 100.