Question

Oxyfuel-gas Welding Disadvantages:

a. Limited mobility

b. Slow process

c. Limited material thickness

d. Low temperature flame

e. All of these.

Answer 1

Oxyfuel-gas welding has several disadvantages including limited mobility, slow process, limited material thickness, and low temperature flame.

Step-by-step explanation:

Oxyfuel-gas welding is a process that joins metal materials using fuel gases like acetylene and oxygen. It has several disadvantages:

1. Limited mobility: Oxyfuel-gas welding setups are bulky and require equipment that is not easily portable. This limits the flexibility to perform welding in different locations.
2. Slow process: Oxyfuel-gas welding is relatively slow compared to other welding methods, as it requires heating the metal to a high temperature for joining.
3. Limited material thickness: Oxyfuel-gas welding is suitable for thin to medium thickness materials. It may not be effective on thick materials.
4. Low temperature flame: The flame produced by an oxyfuel-gas torch is not as hot as some other welding methods, which can limit its use on certain metals.

Therefore, the correct answer is (e) All of these.