Radiographic testing Level II – General exam

A monochromatic X-ray beam is:

The general method of producing X-rays involves the sudden deceleration of high velocity electrons in a solid body called a:

The absorption of gamma rays from a given source when passing through matter depends on the:

The velocity of electrons striking the target in an X-ray tube is a function of the:

The uneven distribution of developed grains within the emulsion of a processed X-ray film causes the subjective impression of:

Of the following, the source providing the most penetrating radiation is:

The focal spot in an X-ray tube

In an X-ray tube, the filament and focusing cup are the two essential parts of the:

The specific activity of an isotopic source is usually measured in:

Which of the following isotopes has the longest half-life?

The primary form of energy conversion when electrons strike a target in an X-ray tube results in the production of:

The slope of a straight line joining two points of specified densities on a characteristic curve of a film is known as the:

An X-ray film having wide latitude also has, by definition:

An X-ray tube with a small focal spot is considered better than one with a large focal spot when it is desired to obtain:

A voltage selector consisting of an iron core transformer with a single winding having a series of taps at various points on the winding is called:

Filters used at the port of the X-ray tube:

Almost all gamma radiography is performed with:

The amount of unsharpness or blurring of a radiograph is:

Images of discontinuities close to the source side of the specimen become less clearly defined as:

The specific activity of Co-60 depends on the:

The most commonly used target material in an X-ray tube is:

In general, the quality of fluoroscopic equipment is best determined by:

The formula (milliamperes x time) / distance2 is:

The absorption of radiation by a material varies:

The interval between the time a film is placed in a fixer solution and the time when the original diffuse, yellow milkiness disappears is known as:

Which of the following X-ray generators would produce the narrowest cone of X-radiation?

The quantitative measure of film blackening is referred to as:

A curve that relates density with the logarithm of exposure or of relative exposure is called:

Subject contrast is affected by:

A qualitative term often used to indicate the size of the smallest detail that can be seen in a radiograph is:

The degree of concentration of the radioactive material in a gamma ray source is referred to as the:

The ability of a material to block or partially block the passage of X-rays and gamma rays is called:

The ‘photoelectric’ effect involves:

Charged particles passing through matter lose energy primarily because of:

Adding chemicals to restore the activity of a developer solution during normal use is known as:

Overall image quality of a radiograph is determined by its radiographic contrast and:

Discontinuities caused by fatigue and/or corrosion are categorized as:

Inherent discontinuities are those found in:

Which of the following discontinuities is not related to the casting process?

As the effective energy of the radiation increases: