126 quiz 2

What turns the pulsing feature on for the GTAW power source

• By turning on the power source machine

• By turning on the pulse mode switch

• By turning the left switch up to 30

What does the pulse percent on time control do

• Controls the arc length of the peak current as a percentage of one pulse

• Controls the duration of the peak current as a percentage of one pulse

What is a way to prevent overheating

• Turn you machine off and disconnect clamps

• Clean the dirt and dust from the power source

• Stop working immediately and move the wok clamps from the table or work

True or false, you must use a high pressure stream to clean the arc gap

• True

• False

True or False, an inverter takes high voltage low amperage and transform it into low voltage high amperage

• False

• True

What power source component operates as a one-way check valve

• Transformer rectifier

• Bridge rectifier

• Transformer rectifier

True or false, a weave uses a back an forth movement which widens the puddle

• True

• False

True or false this picture shows a fillet weld

• False

• True

True or False This picture shows incomplete fusion

• False

• True

True or false this picture shows a filler weld

• True

• False