7. The actual arc voltage established on the machine
after welding begins may also be referred to as
_____ voltage.
8. When welding with the short-arc mode, the machine
OCV is generally set in the _____ end of the range,
while the spray-arc mode requires setting on the
_____ voltage range.
9. The _____ of the volt-ampere curve is actually the
operating characteristics of the welding machine
output.
10. When setting up a machine for short-arc welding
and slope adjustment is available, the slope is set in
the _____ setting.
11. When setting up a machine for spray-arc welding
and slope adjustment is available, the slope is set in
the _____ mode.
12. Another name for inductance is _____ _____. It
relates to the rate of rise of welding current when the
electrode is in contact with the workpiece in the
short-arc mode.
13. Adjustment of the inductance control aids in
obtaining _____, reducing _____, and obtaining a
_____ weld crown.
14. The word _____ is used to express the numbers of
cycles of input electrical current.
15. Wire feeders generally use 110 volts input current
while gun motors will have a _____ voltage for the
safety of the welder.
16. The three types of wire feeders include the _____-
type, the _____-type, and the _____-_____ type.
17. Wire feeders have either a _____ - or _____ -roll
drive system. The _____ -roll system is used where
precision drive of the filler wire is required.
18. A welding machine manufacturer’s guarantee on
equipment is called the machine _____.
19. Proper _____ of welding equipment will extend the
life of the equipment for a long period of time and
reduce the number of major repairs.
20. The gun cable is connected to the wire feeder by the
use of an _____. This equipment is usually made by
the gun manufacturer and only fits the manu-
facturer’s equipment.
21. Guns are rated by _____ _____, in the same way as
power supplies are rated.
22. The electrical current produced by the power supply
is transferred to the electrode through the _____
_____.
23. A _____ is used in the gun cable to protect it from
wear and is made to fit a specific _____ of wire. It is
installed in the cable with specific instructions for
assembly into the gun adapter.
24. Welding guns which use the push-pull system use
wheels with _____ _____ that pull the wire from the
wire feeder slave unit.
25. Arc outages in the short-arc mode are generally
caused by a faulty _____ connection.
40 Gas Metal Arc Welding Handbook