Question

Electric Welding is a process of heating and welding two meatal pieces together using a powerful electric current. While performing this, a few precautions should be taken. Identify the same from the list given below:

A . Make sure that the rod holder is insulated.

B. Do not dip energized electrode holders in water.

C. Avoid direct contact with the live parts of welding equipment.

D. The body and hands should be kept wet while electric welding.

1. A, B and D
2. B and C
3. A, B and C
4. A, B, C and D

Answer 1

Correct Answer - Option 3 : A, B and C

Explanation:

• Welding can be dangerous and unhealthy if the proper precautions are not taken.
• However, using new technology and proper protection greatly reduces risks of injury and death associated with welding.
• Since many common welding procedures involve an open electric arc or flame, the risk of burns and fire is significant, that is why it is classified as a hot work process.

 

Safety Precaution

• Never stand on a damp or wet place while arc-welding.
• Always wear all the safety apparel (gloves, apron, sleeves, shoes). 
• Use welding and a chipping screen during welding and chipping respectively, for the protection of the eyes and the face.
• Switch off the machine when not in use.
• Keep the clothes free from oil and grease.
• Use tongs while handling hot metals.
• Do not carry matches or petrol lighters in your pocket during arc welding.
• Protect the outsiders from radiation and reflection of rays, by using portable screens or welding booths.
• Keep the welding area free from moisture and flammable material.
• Do not try to rectify electrical faults yourself; call an electrician.
• Do not throw the electrode stubs on the floor. Put them in a container. 
• Use exhaust fans to remove the arc-welding smoke and fumes. 
• Safety precautions after gas and electric welding after working gas welding and gas cutting, bleed the lines to take the pressure off regulators, neatly coil the hoses and replace equipment.
• Store hoses, torches, blowpipes regulators safely in the proper place.
• Check the electrical circuits are properly earthed.
• Store away the gas cylinders from in flammable and combustible materials.
• After electric welding operations are completed the welder will mark the hot metal or provide some other means of warning other workers.

 

Solution:

Precautions should be taken while doing electric welding

A. Make sure that the rod holder is insulated.

B. Do not dip energized electrode holders in water.

C. Avoid direct contact with the live parts of welding equipment.

∴ Option C is correct.