The Game Show that guarantees maximum saturation!!

• Played like Jeopardy• Team with the biggest flux wins• 3 teams to compete• Buzz in to answer question and wait for the

host to request teams response• Final question will be written on provided

paper

RULES

Prods

Yokes

Coils

200

Magnetism

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Fields Currents

Indications

Techniques

Definitions

A material that has the ability to attract iron or steel (and some other metallic materials).

What is a magnet?

First Shot - Magnetism100 amps

This type of material, characteristic, that is not able to be magnetized and are repelled by magnetism.

What is diamagnetic materials?

First Shot - Magnetism200 amps

These lines of force never cross; they seek the path of least magnetic resistance; they are the most densely packed at the poles of the magnet; they flow from north to south outside the magnet, but from south to north poles within the magnet; and they do not enter or leave at the center of the magnetic field.

What is magnetic flux?

First Shot - Magnetism300 amps

Defined as the reverse magnetizing force necessary to remove the residual magnetism so as to demagnetize an article.

What coercive force?

First Shot - Magnetism400 amps

The magnetic lines existing in a magnetic circuit are called magnetic flux. Its unit is a single line force usually designated by the Greek letter phi.

What is Maxwell?

First Shot - Magnetism500 amps

The direction of the magnetic field, lines of force, are at what angle to that of the current in the conductor.

What is 90 degrees?

First Shot - Fields100 amps

An easy way to determine the direction of an electrically-induced magnetic field is to imagine grasping the conductor with the thumb pointing in the direction of the current flow.

What is the right-hand rule?

First Shot - Fields200 amps

A permanent bar magnet is the best known example.

What is longitudinal magnetization?

First Shot - Fields300 amps

This type of field is accomplished by passing a current through the article.

What is direct induction?

First Shot - Fields400 amps

Magnetic flux orientation to the discontinuity is critical in its detection. When using longitudinal fields you would not be able to find this orientation of a discontinuity?

What is perpendicular?

First Shot - Fields500 amps

This type of current creates a maximum flux at the surface of the magnetized article, and has relatively little penetrating ability.

What is alternating current?

First Shot - Currents100 amps

This current is the most sensitive in detecting subsurface discontinuities.

What is half-wave direct current?

First Shot - Currents200 amps

For reliable coil magnetization, the article to be magnetized must be what relation to its diameter or width.

What is at least twice as long?

First Shot - Currents300 amps

Permits current to flow only during the positive half cycles of the applied alternating current voltage; the current thus becomes a pulsating direct current.

What is a rectifier?

First Shot - Currents400 amps

This indicates that the field strength is to great, utilizing prods, and causes the accumulation of particles between the points of the prods and tends to form bands.

What is banding?

First Shot - Currents500 amps

May be caused by excessive magnetizing current, structural design of an article, or variances of permeability within the article itself.

What is nonrelevant indications?

First Shot - Indications100 amps

Caused when magnetic particles are accumulated and held mechanically or by gravity in surface irregularities.

What is false indications?

First Shot - Indications 200 amps

These discontinuities tend to produce sharp, distinct, clean-cut and tightly held indication patterns.

What is surface indications?

First Shot - Indications300 amps

These discontinuities tend to produce indications which are less distinct, diffused, or fuzzy.

What is subsurface indications?

First Shot - Indications 400 amps

A form of nonrelevant indications caused when the surface of a magnetized part comes in contact with another piece of ferromagnetic material that is magnetized to a different value.

What is magnetic writing?

First Shot - Indications500 amps

Uses a medium with the particles suspended in either a water or oil bath.

What is wet continuous?

First Shot - Techniques100 amps

When an article is made of ferromagnetic material is magnetized, some of the magnetic field remains in the article after the magnetizing current is shut off.

What is residual field?

First Shot - Techniques200 amps

If the bath flow is not stopped when the final magnetizing current is applied, wet continuous technique, these indications may be washed away.

What is lightly held surface indications?

First Shot - Techniques300 amps

What is a ¼ inch?

Magnetic particle testing will not detect discontinuities deeper than below the surface.

First Shot - Techniques400 amps

Cracked black light filters will damage the eye from the electromagnetic spectrum rays emitted.

What is UV rays?

First Shot - Techniques500 amps

An electrical conductor that is passed through the opening in a ring or tube or any hole in an article for the purpose of creating a circular field in the ring or tube or around the hole.

What is central conductor?

First Shot - Definitions100 amps

The reduction in the degree of residual magnetism to an acceptable level.

What is demagnetization?

First Shot - Definitions200 amps

The emission of visible radiation by a substance as the result of and only during the absorption of black light radiation.

What is fluorescence?

First Shot - Definitions300 amps

An instrument designed to detect and/or measure the flux density and polarity of magnetic fields.

What is a magnetic field indicator?

First Shot - Definitions400 amps

The temperature at which ferromagnetic materials can no longer be magnetized by outside forces and at which they lose their residual magnetism.

What is curie point?

First Shot - Definitions500 amps

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FINAL ROUND - 8 Minutes(30 Seconds left when music starts)

What?