FREE AND STUDY GAMES ABOUT QUIZ CH 39 EXAM

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FREE AND STUDY GAMES ABOUT QUIZ CH 39 EXAM

QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -35 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: Solutions should have been changed in the processor 1 week ago. Continuing to use exhausted developer will result in ____ films.

Answer:

light Question 2: Digital radiography requires less radiation than traditional radiography because the

Answer:

sensor is more sensitive to x-ray energy.Question 3: The charge-coupled device (CCD) in direct digital imaging sensors is made of

Answer:

silicon.

Question 4: Fixer cutoff will result in a _____ border.

Answer:

straight black

Question 5: The device that intensifies or increases the effect of the radiation and decreases the amount of exposure time needed when exposing an extraoral radiograph is a(n)

Answer:

intensifying screen.

Question 6: The correct order of steps in manual film processing is

Answer:

develop, rinse, fix, wash.Question 7: The silver halide crystals are located within which of the following layers of the radiographic film?

Answer:

Gelatin that suspends the emulsion Question 8: Which of the following is an extraoral film that is placed outside the mouth during dental x-ray exposure procedures?

Answer:

Cephalometric Question 9: The recommended distance between the safelight and where the films are unwrapped is

Answer:

• feet.

Question 10: Green-sensitive extraoral film is used with cassettes that have which type of intensifying screen?

Answer:

Rare earth Question 11: All the following are true statements about digitizing film-based radiographic images except

Answer:

it duplicates in the same detail as the original film.

Question 12: When loading an extraoral film into the cassette prior to exposure, the

Answer:

procedure must be done in the darkroom.

Question 13: When film emulsion interacts with x-rays, the result is

Answer:

a latent image.

Question 14: Positioning instruments in digital radiography

Answer:

assist in film placement and keep the patient's fingers from being exposed.Question 15: F-speed dental x-ray film reduces radiation exposure to the patient by __% compared with D-speed dental x-ray film.

Answer:

60

Question 16: ____ hardens the film emulsion during film processing.

Answer:

Fixing

Question 17: The safest place to store unopened boxes of dental film is in the

Answer:

darkroom.

Question 18: The ideal time and temperature for manual developing is

Answer:

• minutes at 68° F.

Question 19: Clear spots on a processed film can be caused by

Answer:

fixer contacts film prior to processing.

Question 20: A plastic or metal film cassette holds and protects the extraoral film. During exposure, the side of the cassette the must face the patient is the _____ side.

Answer:

front Question 21: Which of the following time and temperature errors will result in reticulation of the film emulsion?

Answer:

Sudden temperature change between developer and water bath Question 22: Faster film speed would be associated with _____ silver halide crystals, a _______ emulsion, and presence of special radiosensitive dyes.

Answer:

smaller; thinner Question 23: All of following are true statements about storage plates used with phosphor storage plate (PSP) imaging systems except that

Answer:

they utilize radio frequency transmission to transmit the image to the computer via radio waves.Question 24: When developer solution in an automatic processor is warmer than 83° F, the processed film will appear

Answer:

dark or black.

Question 25: The life of the processing solutions is affected by

Answer:

the number of films processed.the time elapsed since last change.the size of films processed.

Question 26: One reason for a lighter than normal radiograph is the

Answer:

developer solution is too weak.