Question

A piece of paper wrapped around an aluminium pipe does not catch fire easily.

Which of the given reasons supports the above information?

• A. Paper is non-combustible in nature
• B. Aluminium is non-combustible in nature
• C. Aluminum pipe does not attain its ignition temperature
• D. Paper wrapped around the pipe does not attain its ignition temperature

Answer 1

The correct option is D Paper wrapped around the pipe does not attain its ignition temperature

Both aluminium and paper are combustible substances. When heat is supplied to the paper, it is transferred to the aluminium pipe by conduction. In the presence of aluminium, the ignition temperature of paper is not achieved. Therefore, it does not catch fire easily. It is important to note that attaining the ignition temperature is a prerequisite for combustion to take place.

The correct answer is option 'd'.