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9: Review Questions
Identify the parts of this illustration of SMAW.
Which electrode polarity should be used when welding thin metals?
Current that travels from the electrode to the base metal is known as _____ or _____.
What must be done before you change the polarity on a welding machine?
AC electrodes provide _____ penetration when used for SMAW.
List eight items found in an SMAW station.
What do the letters CC and CV stand for? Is a drooper a CC or CV welding machine?
Refer to Figure 9-16. The duty cycle for this welding machine at 150 amperes is _____%.
Refer to Figure 9-18. A #_____ electrode lead and workpiece lead should be used to carry 150 amperes of electricity 75 feet to the workpiece and 75 feet back to the welding machine.
The temperature of an electric arc in SMAW can be over _____°F (_____°C).
What is the OCV of most manual AC and DC welding machines?
What type of gloves should be worn for out-ofposition welding?
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