Magnetic Particle inspection is a means for detecting discontinuities at or near the surface in ____________ materials.

A bar magnet is a classic example of:

A method of magnetization in which an external field is likely to be present in the article is:

A material that possesses the ability to attract iron and other ferromagnetic materials is generally called a:

The interpretation of magnetic particle indications may be aided by:

An interruption in the normal physical structure or configuration of a part which produces an MT indication is called:

A material which retains its magnetism once it has been magnetized is called a _______________ magnet.

A prime consideration when selecting a  powder to be used as a magnetic particle medium is to select a powder that:

Materials which are strongly attracted to a magnet are called:

When testing for fine shallow surface cracks, the preferred MT method should be:

Which of the following is an advantage of the dry method over the wet method?

Why are large soft contact areas such as lead or copper braid used for surfaces or headstock?

 A desirable property of magnetic particles used for the inspection medium for either the dry or wet method is that they:

Discontinuities in plate, sheet, or strip caused by pipe, inclusions, or blowholes in the original ingot which, after rolling, are usually flat and parallel to the outside surface are called:

The accumulation of particles at a site on the part surface, collected at and held to the site by the magnetic leakage field is called:

Half-wave rectified AC (HWDC) is used for detection of:

The term used to refer to the total opposition to flow of current represented by the combined effect of resistance, inductance and capacitance of a circuit is:

All of the following discontinuities are commonly found in rolled products except:

Which of the following is a defect commonly associated with the welding process?

Of the following discontinuity categories, which one is considered most detrimental to the service life of an item?

The most effective MT method for inspection of a large casting is the use of:

The ability of matter to attract other matter to itself is a phenomenon associated with:

Which of the following methods is the more sensitive?

Materials which are repelled magnetically are called:

The end of a magnet at which the lines of flux are thought of as entering the bar is:

The general term used to refer to a break in the metallic continuity of the part being tested is:

The lines of force that form a path around a crack in a ring magnet are called:

Lines of flux are thought to leave a magnet at:

A discontinuity lying open to the surface is usually more harmful to an article than a discontinuity lying below the surface:

A magnetic discontinuity, which is a break in the magnetic uniformity of a part, is related to a sudden change in:

The permeability of a ferromagnetic material is:

Materials which are weakly attracted  magnetically are called:

When electric current is passed through a conductor, an induced magnetic field is generated that is:

What is usually the distinctive feature of non-relevant indications?

The selection of the test method is primarily determined by the ____________ of the test article.

In magnetic particle inspection, it is best to:

A lap is the type of discontinuity associated with:

The primary advantage of alternating current magnetization is:

The best orientation for a magnetic field to locate a discontinuity is:

Cleaning of an article is accomplished _______________ the magnetic particle test.

Comparing parts that have been circularly magnetized and those that have been longitudinally magnetized, which retains the most objectionable residual field if not demagnetized?

When testing for fine shallow surface cracks, the preferred MT method should be:

Which of the following is an advantage of the dry method over the wet method?

The term used to refer to the total opposition to flow of current represented by the combined effect of resistance, inductance, and capacitance of a circuit is:

All of the following discontinuities are commonly found in rolled products except:

The length of a part being magnetized by passing an electric current from one end to the other:

A swinging field is obtained by:

Magnetic particle indications are caused when magnetic particles are attracted at which of the following?

Why is it important that non-relevant indications be recognized and eliminated?

The selection of the test method is primarily determined by the ____________ of the test article.

Which method is most effective for locating deep subsurface discontinuities?

Which type of current is best for detection of surface discontinuities?

A circular magnetic field is the nearest approach to a “leakage free’ magnetic field

The two primary methods of inducing circular magnetism in an article are:

Materials which are strongly attracted to a magnet are called:

The pattern of iron powder sprinkled on a paper placed over a bar magnet is called a:

In magnetic particle inspection, it is best to:

A bar magnet is a classic example of:

Which of the following offers the closest approach to a leakage-free magnetic field?

Which of the following contains a material that is not a permanent magnetic material produced by heat treating in a strong magnetic field or by its own nature?

The Earth’s magnetic field, although weak, can reduce magnetism. Its strength is:

The primary advantage of alternating current magnetization is:

A disadvantage of half-wave direct current (HWDC) is that:

Which of the following anomalies is not considered to be a service discontinuity?

To locate a discontinuity with respect a magnetizing electric current, the most favorable orientation is:

The magnetic field produced during the insertion of a ferromagnetic material within a coil containing an electric current is:

The greatest flux leakage in a longitudinally magnetized part is at:

Which of the following parameters is not part of a wide loop B-H curve?

Which parameter is not part of a narrow loop B-H curve?

To best avoid the confusion caused by a nonrelevant indication, the operator should:

A lap is the type of discontinuity associated with:

Another name for cold cracking in welds is:

Shim discontinuity standards are produced from ferromagnetic ______________ material.

When a hollow tubular part is magnetized between the heads, flux density will be greatest:

When using a central conductor to magnetize a hollow article, flux density in the article will be greatest:

The length of an article being magnetized between the heads has little effect on the strength of the magnetic field produced.

Reliable testing in the wet method depends on the equipment and the bath being:

One of the reasons half-wave DC (HWDC) is more sensitive than true direct current is because of its ability to:

It is necessary that the magnetizing force at the start of demagnetization be greater than the magnetizing force used to test the article initially.

Which of the following casting defects is caused by non-uniform cooling resulting in stresses which rupture the surface of the metal?