Chapter 13 SMAW

Question 1

A drag travel angle or backhand welding is used with ___________

Answer 1

SMAW

Question 2

What are the advantages of a smaller-diameter electrode?

Answer 2

1. Lower amperage can be used
2. A smaller weld pool is created
3. The molten metal in the pool is easier to control

Question 3

Why shouldn’t electrode be bent?

Answer 3

Because their flux covering may chip off

Question 4

What is used when welding out of position?

Answer 4

An electrode holder

Question 5

True or False: Fillet welds in the horizontal or vertical position are made on butt, lap, and T-joints.

Answer 5

True

Question 6

Which electrodes can be used with the whip and pause technique?

Answer 6

Electrodes with EXX10 or EXX11 forms a good weld bead. For example E7010 could use whip and pause,

Question 7

What helps obtain good fusion and prevents undercutting at the weld toe?

Answer 7

The electrode motion should be stopped briefly each time the electrode reaches the toe of the weld.

Question 8

The electrode work angle when making a horizontal butt weld points upwards at a __________ angle

Answer 8

10-20 degree from a line perpendicular to the workpiece surface

Question 9

Why should you keep the electrode work angle upward at 10-20 degrees when making a horizontal butt weld?

Answer 9

To prevent molten metal from sagging

Question 10

A 20 degree drag travel angle is used to weld a butt joint in the ____________________

Answer 10

horizontal position in SMAW

Question 11

When does an uphill weld begin?

Answer 11

At the bottom of the joint and ends at the top of the joint

Question 12

A larger weld pool can be maintained during __________ welding, than during ___________ welding

Answer 12

uphill, downhill

Question 13

A butt joint being welded using the uphilll method, the electrode forms a ____________ push travel angle and is pointed in the direction of the travel

Answer 13

5-20 degrees

Question 14

What should you do if the weld pool gets too large to maintain a slightly smaller weld pool?

Answer 14

Use a whip and pause if using a fast freeze electrode

Question 15

When does downhill weld begin?

Answer 15

At the top of a joint and ends at the bottom of the joint

Question 16

True or False: Slag should be prevented from entering the weld pool

Answer 16

true

Question 17

How do you prevent slag from entering the pool?

Answer 17

The correct welding speed keeps the welding pool ahead of the slag.

Question 18

Why would you prevent slag from entering the pool?

Answer 18

Slag trapped in the weld causes inclusions (foreign particles) which will weaken the completed weld

Question 19

Greater weld strength is obtained by welding __________ on a lap joint.

Answer 19

uphill

Question 20

What is used for the root pass on a fillet weld?

Answer 20

A stringer bead

Question 21

The ________ method on a butt weld ensures 100% penetration

Answer 21

keyhole

Question 22

True or False: Many welder qualification tests are performed on out of position weld joints

Answer 22

true

Question 23

Which vertical direction allows a larger weld pool to be maintained?

Answer 23

Uphill welding

Question 24

Which vertical direction requires more weld passes to fill a joint?

Answer 24

downhill

Question 25

What electrode motion can be used uphill that is not used downhill?

Question 26

For welding in the _______ position, some welders clamp the electrode so it is parallel to the electrode holder.

Answer 26

overhead