Welding Processes

Question 1

GMAW is normally accomplished using direct current electrode positive DCEP when this type of power source is combine with a wire feeder it result in a welding process which can be semi automatic mechanized a fully automatic

Answer 1

True

Question 2

E70C-6M

E- electrode
70- tensile  strength 70,000 PSI
C- Composite metal core 
      electrode
6- Category for the wire
M- Means mix gas

Answer 2

True

Question 3

FCAW
Flux core arc-welding

E-Electrode

Answer 3

U

Question 4

Which of the following shielding gas is is used for GMAW spray transfer on steel?
A. Carbon dioxide – 100%
B. Oxygen – 2%, argon – 98%
C. Argon 75%, carbon dioxide – 25%

Answer 4

B. Oxygen – 2%, argon – 98%

Question 5

In SMAW, and increase in arc length results in.

A. Increase current, increased voltage
B. Decreased current, increased voltage
C. Increased heat input, decreased voltage

Answer 5

B. Decreased current, increased voltage