CHAPTER 7 FAUBER TEST BANK
QUESTIONS WITH CORRECT
ANSWERS
Which of the following are tools that the radiographer can use to limit scatter
radiation? - Ans--beam-restricting devices and radiographic grids
A larger the x-ray beam field size results in: - Ans--increase in scatter
produced and increase in fog
What purpose does positive beam limitation serve? - Ans--To reduce
patient exposure by limiting the exposure field to the same size as the image
receptor in the Bucky tray
Which of the following beam-restricting devices is best at limiting
unsharpness surrounding the radiographic image? - Ans--Collimator
The unrestricted primary beam produces a(n) _________ area of exposure
- Ans--round
Decreasing collimation results in: - Ans--a larger field size.
As beam restriction increases, field size and patient dose _____________.
- Ans--decreases
Which beam restriction device can be cut to the size needed? - Ans--An
aperture diaphragm
Which of the following beam-restricting devices is least effective at limiting
unsharpness surrounding the radiographic image? - Ans--Aperture
diaphragm
An aperture diaphragm with an attached elongated tube is a(n): - Ans--
cylinder.
QUESTIONS WITH CORRECT
ANSWERS
Which of the following are tools that the radiographer can use to limit scatter
radiation? - Ans--beam-restricting devices and radiographic grids
A larger the x-ray beam field size results in: - Ans--increase in scatter
produced and increase in fog
What purpose does positive beam limitation serve? - Ans--To reduce
patient exposure by limiting the exposure field to the same size as the image
receptor in the Bucky tray
Which of the following beam-restricting devices is best at limiting
unsharpness surrounding the radiographic image? - Ans--Collimator
The unrestricted primary beam produces a(n) _________ area of exposure
- Ans--round
Decreasing collimation results in: - Ans--a larger field size.
As beam restriction increases, field size and patient dose _____________.
- Ans--decreases
Which beam restriction device can be cut to the size needed? - Ans--An
aperture diaphragm
Which of the following beam-restricting devices is least effective at limiting
unsharpness surrounding the radiographic image? - Ans--Aperture
diaphragm
An aperture diaphragm with an attached elongated tube is a(n): - Ans--
cylinder.