What type of magnetization uses the formula:

Ampere-turns = 45,000/LD

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:

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

Materials which are repelled magnetically are called:

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

To induce an adequate longitudinal field within a coil, the length of the test object should be at least __________ longer than the short dimension of the test object

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

Which of the following is not a good requirement for a magnetic particle powder?

Which of the following materials can be tested adequately using the residual method of magnetization?

During pipe or tube production, metal build-up on the preslung mandrel can cause:

Another name for cold cracking in welds is:

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 amount of current to be applied when using prods is based on the distance between the prods and:

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

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

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

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

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

A discontinuity which will affect the service life of the article and is detrimental to its quality, appearance, or performance is called a:

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

When magnetic fields are applied in two or more directions at the same time, the resultant magnetic field is known as

Which process is not one that causes an inherent type of discontinuity?

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:

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

Since the magnetic lines of force within a bar magnet run the length of the bar, it is said to be:

Lines of flux are thought to leave a magnet at:

A general rule to use for determining the detectability of surface discontinuities by magnetic particle inspection is that:

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

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

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

Which of the following can cause non-relevant magnetic particle indications?

Some limitations of coil magnetization techniques are:

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

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

In magnetic particle inspection, it is best to:

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

Residual magnetism may be beneficial as an aid: