Compared to nanual types ot welding processes, GA s considered the cleanest True

Question

Compared to nanual types ot welding processes, GA s considered the cleanest True False During gas cutting, excessive heat leaves slag along the bottom edge of the metal. True False t is the employers responsibility to set the energency plans True False One advantage of MIG welding is that the external shielding gas can be withstand winds True False During gas cutting, excessive heat leaves slag along the bottom edge of the metal. True False True False One advantage of MIG welding is that the external shielding gas can be withstand winds. True False

Explanation / Answer

1. True

GTAW is considered as one of the cleanest welding techniques which is being used for about more than 50 years Though other welding processes may produce smoke, debris and fumes but GTAW produces less contaminated welded joints when compared to them.

2. True

Because of Excessive heating a layer of slag gets deposited along the bottom edge of the metal. When we go for Oxy Acetylene flame the material gets oxydized and a thin layer of oxide is formed on the surface of the metal so we cant use oxy acetylene flame with high melting point temperature

3. False

It is duty of both employer and employees to take care of Emergency measures. Though Employer sets emergency plan but he/she can take help of the employees to set it.

4. False

when we use MIG outside winds blow of the shielding gases so it is false

5. True

Welding process produces fumes (oxides, silicates), mist, dust( which was deposited on the metal) and vapour

6. False

when we use MIG outside winds blow of the shielding gases so it is false

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