The purpose of agitating an X-ray film during development is to:

Penetrameters for ________ are considered Group 1 Materials and need not have an identification notch.

L5
secondary radiation is never dangerous to the radiographer

L3
Large grain films provide the best definition in a radiograph.

Atoms, molecules, and various subatomic particles which carry either a positive or negative electrical charge are called:

L2
The higher the “amplitude” of an electromagnetic wave, the higher the energy.

The accidental movement of the specimen of the specimen or film during exposure or the use of a focus-film distance that is too small will:

The primary parts of an atom are:

Although there may be other reasons for using calcium tungstate screens in industrial radiography, they are most usually used to:

L2
The “electromagnetic spectrum” describes the family of electromagnetic waves relative to their frequency and wavelength.

Very short wavelength electromagnetic radiation produced when electrons traveling at high speeds collide with matter is called:

An excellent radiograph is obtained under given exposure conditions with a tube current of 5 milliamperes and an exposure time of 12 minutes. If other conditions are not changed, what exposure time would be required if the X-ray tube current could be raised to 10 milliamperes?

The intensity of X or Gamma radiation is measured in:

L9
coarse-grain films are advantageous because they require considerably less time in the developer, stop bath and fixer solutions

Feedback

advantageous to make exposures as fast as possible

The ability to detect a small discontinuity or flaw is called:

Fluoroscopy differs from radiography in that:

L2
Wavelength is usually described as the distance between two angstrom units.

L2
Angstrom units are used to measure the wavelength of X and Gamma rays.

L2
If the discontinuity in an object was less dense than the specimen, then it would appear on the film as a dark spot.

L9
the developer solution transforms the silver bromide crystals to metallic silver causing the film to turn black

L5
if a 500KEV photon enters an atom that has a binding force of 50KEV and removes an electron by giving it an energy of 50KEV, then the new photon would have an energy of 400KEV

L5
if a 500KEV photon enters an atom that has a binding force of 50KEV and removes an electron by giving it an energy of 50KEV, then the new photon would have an energy of 400KEV

L9
artifacts are often caused by improper use of safe-lights in the darkroom

Feedback

dust, improper handling, static marks etc. are the cause of artifacts

L5
the energy of a photon cannot be destroyed, but can be converted into other forms by the photoelectric and compton effects

A curie is the equivalent of:

L3
Back scattered radiation is often caused by low energy X-rays whose electron path was changed within the film.

Feedback

Back scatter = scatter residing from the back of the film

In X-radiography, the ability to penetrate the test object is governed by:

L9
most radiographic film uses clear acetate or polyester base with emulsion on both sides

Which of the following types of radiation is emitted by cobalt-60 and used in nondestructive testing:

Excessive exposure of film to light prior to development of the film will most likely result in:

Fluorescent intensifying screens are usually mounted in pairs in rigid holders called:

The exposure of personnel to X- and gamma radiation can be measured or monitored by means of:

In performing fluoroscopic examination of a part, it is important to control

The lead symbol “B” is attached to the back of the film holder to determine:

L3
Gradual changes in specimen thickness produce radiographs that show excellent definition.

Feedback

An abrupt change in thickness produces excellent definition.

A densitometer is:

Three liquids which are essential to process an exposed film properly are:

A thin metallic sheet (brass, copper, aluminum, etc) placed at the source to reduce effects of softer radiation is known as:

To prevent excessive backscatter from reaching a radiographic film, one should:

Approximately what percent of the original radioactivity is left after six half-lives:

L3
Gradual changes in specimen thickness produce radiographs that show excellent definition.

Feedback

An abrupt change in thickness produces excellent definition.

L9
excessive voltage across the x-ray tube will cause static marks on the radiographic film

Feedback

static marks (artifacts) are due improper film handling

Radiographic sensitivity, in the context of the minimum detectable flaw size, depends on:

L5
A “hard” x-ray travels faster than a “soft” x-ray, and that is why the “hard” x-rays have more energy.
Feedback
regardless of curie strength (activity)/size of an isotope the energy of individual rays remains the same

For an AP projection of the cervical spine, the central ray is centered at:

An opening is described as a:

The coracoid process is labeled:

The axillary border is labeled:

Directing the central ray perpendicular to the midline, entering at the level of the iliac crests, is done for what projection?

The pylorus of the stomach is located at the:

The part of the urinary system located between the renal pelvis and the bladder is called the:

The lamina is labeled:The lamina is labeled:

Which of the following bones has (have) no body?

The superior articular process labelled:

The superior articular process labelled:

The length of the trachea is about:

Directing the central ray 5 to 7 degrees cephalic is done for what projection?

The pedicle is labeled:

For an AP projection of the thumb, the hand is turned in extreme:

The bulge at the upper end of the stomach is called the:

The lamina is labeled:

A large rounded projection is called a:

The wrinkled striations on the inner surface of the stomach are called the:

The greater curvature is located on the:

The elbow has what type of movement?

For the AP axial projection for the colon, the central ray is angled cephalad how many degrees?

The narrow distal end of the stomach that connects with the small intestine is called the:

The scapular notch is labeled:

The bicipital groove is located:

Directing the central ray to the base of the third metatarsal is done for what projection?

The portion of the colon located between the cecum and the hepatic flexure is called the:

This bone is located beneath the talus:

The portion of the small bowel in which the greatest amount absorption takes place.

Flexion of the elbow 90 degrees is required for what projection?

Which of the following bones has a coronoid process?

The upper part of the sternum is called the:

Blood vessels, the bronchial tree, and nerves enter the lungs at this point: