Chapter 10 SMAW

Question 1

How is power supplied for AC and DC welding machines?

Answer 1

A commercial source. Commercial power voltages of 120V, 240V or higher may be required

Question 2

What are the two terminals for AC and DC welding machines?

Answer 2

• Electrode lead
• workplace lead

Question 3

True or False: The electrode lead and workpiece lead should be the same diameter.

Answer 3

True

Question 4

When would you need larger diameter lead?

Answer 4

• when longer distance to work is required
• when there is a higher amperage

Question 5

True or False: It is acceptable for the electrode or holder to be in contact with the workpiece when changing polarity or course current range.

Answer 5

False

Question 6

What should be considered when selecting polarity and amperage?

Answer 6

• type of metal
• metal thickness
• joint design
• welding position
• type of electrode

Question 7

Which of the following is not a standard input power voltage?
1. 60V
2. 120V
3. 240V
4. All the above

Answer 7

60V

Question 8

A qualified ________should permanently wire the welding machine to the commercial power source.

Answer 8

electrician

Question 9

Engine driven generators can provide _____________ to run auxiliary equipment

Answer 9

120V or 240V

Question 10

______________ can be sockets that accept a cam lock style connector for quick connection.

Answer 10

Terminals