Question

Can you list five fuel gases used in oxyfuel gas welding or cutting?

Answer 1

Hmm, acetylene, propane, hydrogen, methane, propylene, and methylacetylene/propadiene (MAPP gas).

Explanation:

All of these gases (or mixtures) are appropriate for a given situation. All of them have a characteristic temperature. The use of these gases involve significant safety hazards, not only in terms of the temperature of their combustion, but the fact that its use entails use of compressed gas in bottles (which have a tendency to fall over!).