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SMAW

True/False
Indicate whether the statement is true or false.
 

 1. 

Shielded metal arc welding is sometimes called stick welding.
 

 2. 

Current is the amount of electron flow through an electrical circuit.
 

 3. 

The actual voltage used to provide the welding current ranges from 220 V to 440 V.
 

 4. 

Moisture can damage the coating on an electrode.
 

 5. 

Coatings on some electrodes release oxygen and nitrogen to protect the weld metal.
 

 6. 

Factors such as size and type of electrode, current, and welding position all affect the travel speed.
 

 7. 

Soapstone is used to mark specific locations on the metal for cutting or welding.
 

 8. 

To remelt a crater, the arc should be struck approximately 1/2² in front of the previously deposited bead, and moved back to retrace the crater to form a new weld pool.
 

 9. 

Root reinforcement should not exceed fabrication code criteria, or 1/16² beyond the bottom surface of the joint.
 

 10. 

Welding in flat position is more efficient than welding in other positions.
 

 11. 

When the thickness of the metal exceeds 3/16², the edges of a butt joint should be beveled.
 

 12. 

A fill-freeze or fast-freeze electrode is best suited for horizontal welding.
 

 13. 

More current is required when welding in horizontal position.
 

 14. 

A 35° work angle is used when depositing a single-pass lap joint.
 

 15. 

Downhill welding obtains greater penetration than uphill welding.
 

 16. 

A light dragging motion with a short arc is used when downhill welding with an E7018 electrode.
 

 17. 

A 10° to 30° travel angle is recommended for downhill welding.
 

 18. 

A travel angle of 15° is recommended when welding a lap joint in overhead position.
 

 19. 

A 75° work angle is used when welding in overhead position.
 

 20. 

Stand to one side of the work to prevent injury from falling slag when welding in overhead position.
 

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 21. 

When welding with DCEP, electrons flow from the ___ to the ___.
a.
electrode; workpiece
b.
workpiece; electrode
c.
workpiece; ground
d.
none of the above
 

 22. 

A(n) ___ is used to remove slag after the weld is deposited.
a.
cutting torch
b.
chipping hammer
c.
electrode holder
d.
none of the above
 

 23. 

A transformer welding machine ___.
a.
changes high-voltage/low-current to low-voltage/high-current
b.
is the least expensive type of welding machine
c.
produces alternating current
d.
all of the above
 

 24. 

___ is the amount of electrical pressure in a circuit.
a.
Voltage
b.
Amperage
c.
Current
d.
Resistance
 

 25. 

A(n) ___ can change direct current into alternating current.
a.
converter
b.
inverter
c.
diverter
d.
breaker
 

 26. 

An E7014 electrode can be used with ___ current.
a.
DCEP
b.
DCEN
c.
AC
d.
all of the above
 

 27. 

An ___ is a fast-freeze electrode from the F3 group.
a.
E6010
b.
E6012
c.
E6020
d.
E6024
 

 28. 

An ___ is a fill-freeze electrode from the F2 group.
a.
E6010
b.
E6011
c.
E6013
d.
E7028
 

 29. 

A(n) ___ electrode is preferred for welding in overhead position.
a.
fast-freeze
b.
fast-fill
c.
fill-freeze
d.
iron powder
 

 30. 

___ is the distance between the electrode core wire and the weld pool.
a.
Electrode gap
b.
Current length
c.
Travel angle
d.
Arc length
 

 31. 

The rate at which the electrode is moved along the weld joint is the ___.
a.
electrode angle
b.
travel speed
c.
scratching speed
d.
arc length
 

 32. 

The ___ angle is in the line of the welding and may vary from 5° to 30°.
a.
work
b.
travel
c.
current
d.
arc
 

 33. 

A(n) ___ is used to maintain the proper root opening between workpieces until final welding takes place.
a.
root pass
b.
intermediate weld pass
c.
cover pass
d.
tack weld
 

 34. 

A work angle of ___° is recommended when depositing the first pass of a multiple-pass fillet weld in a T-joint.
a.
20
b.
30
c.
45
d.
70
 

 35. 

Weaving the electrode when welding in horizontal position allows better ___ control.
a.
heat
b.
flow
c.
penetration
d.
arc length
 

 36. 

A work angle of ___° is recommended when depositing the second pass of a multiple-pass fillet weld in a T-joint.
a.
20
b.
50
c.
70
d.
90
 

 37. 

When welding downhill using an E7018 electrode, the electrode is ___ with a very short arc.
a.
whipped
b.
dragged
c.
hesitated
d.
none of the above
 

 38. 

A(n) ___ electrode is recommended for welding in vertical position.
a.
fast-freeze
b.
iron powder
c.
fast-fill
d.
none of the above
 

 39. 

The arc is struck at the ___ of the joint when depositing beads in vertical position (uphill).
a.
top
b.
bottom
c.
middle
d.
none of the above
 

 40. 

___ electrodes are recommended for welding in overhead position.
a.
Fast-freeze
b.
Fast-fill
c.
Iron-powder
d.
none of the above
 



 
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