SMAW Equipment and Setup 29107-15

The circuit breaker supplying electricity to your welding machine should be shut off ____

• only if the circuit needs to be reset

• only if there is a problem with the welding machine

• before disconnecting the welding machine

• after disconnecting the welding machine

You should inspect your fall protection equipment______

• before each use

• weekly

• monthly

• annually

SMAW power supplies are designed to produce an output current that ______

• is nearly constant

• is at least 500 amps

• is never more than 100 amps

• varies constantly from one bead to another

Most engine-powered welding machines turn a generator that produces

• AC current

• DC current

• a pulsed AC waveform

• a pulsed DC waveform

A step-down transformer converts _____

• power at 60 Hz to a higher frequency

• power at 60 HZ to a lower frequency

• a low voltage to a higher voltage

• a higher voltage to a lower voltage

Inverter-controlled welding machines are smaller, lighter power sources that also

• offer a very smooth and steady DC welding arc

• offer a very smooth and steady AC welding arc

• use significantly more power to operate

• reduces the AC power frequency well below 60 Hz

The capacity of an arc welding machine is determined by its rated amperage and ____

• duty cycle

• voltage

• electrode size

• function

A DINSE style connector is

• a different type of workpiece clamp

• a quick-disconnect style for welding leads

• a new type of electrode holder

• used to connect a welding machine to its primary power supply

When selecting a workpiece clamp, be sure that it is rated ____

• at least as high as the rated capacity of the welding machine

• no more than half of the rated capacity of the welding machine

• less than the median rated capacity of the welding machine

• at twice as high as the rated capacity of the welding machine

Chipping slag and other coatings from finished welds requires

• written procedures to dispose of the material removed

• tools including sanders, nylon brushes, or picks

• hazardous material suits, gloves, and gauntlets

• eye protection, including goggles or face shields