power sources for welding

power sources for welding

Professional Development

57 Qs

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power sources for welding

power sources for welding

Assessment

Quiz

Others

Professional Development

Practice Problem

Easy

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57 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which statement supports the fact that metals are good conductors?

Their electrons are tightly held by the nucleus

They have many free neutrons

They have many free electrons

They have many free proton

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which statement best describes ionization potential?

The energy required to add an electron to form a negative ion

The energy required to remove an electron to form a positive ion

The energy released when a electron is removed from an atom

The energy required to remove a proton from an atom

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Choose the minimum temperatures in the centre of a welding arc column in degrees C

500

1000

5000

50,000

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A plasma can best be described as

An ionized gas

An inert gas

A good insulator

A high temperature gas

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The major voltage drop(s) in a consumable electrode welding circuit is (are)

The welding cables

The work clamp

The arc plasma

The anode drop, cathode drop and the arc plasma

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The statistic characteristics of a welding power source are indicated on a graph which plots?

Voltage verses time

Current verses time

Energy verses time

Voltage verses current

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The arc starting characteristics of a CC welding power source are determined by?

The short circuit current

The slope

The input voltage

The open circuit voltage

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