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Plasma/CAC-A gouging and cutting

Authored by Ken Clack

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University

Plasma/CAC-A gouging and cutting
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30 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does PAC use to melt and remove metal?

A high-velocity jet of ionized gas (plasma)

A stream of water

A rotating abrasive wheel

A chemical etching solution

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

On what polarity does Plasma Arc Cutting (PAC) operate?

DC straight polarity (DCSP)

AC polarity

DC reverse polarity (DCRP)

Pulsed DC polarity

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the temperature range for Plasma Arc Cutting (PAC)?

10,000°C to 14,000°C

1,000°C to 2,000°C

500°C to 1,000°C

2,000°C to 4,000°C

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Plasma: ________ gas acting as a conductor.

Ionized

Neutral

Compressed

Cold

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Standoff distance: Nozzle-to-workpiece distance (approximately ________ mm).

6.4–10

1–2

15–20

25–30

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Dual flow torch: Uses separate ________ and shielding gases.

plasma

electrodes

nozzles

wires

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the open circuit voltage range for the Power Supply in PAC Equipment?

120–400 V

50–100 V

400–800 V

10–50 V

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