RR 4.2 Medium Real Exam Questions And Well Elaborated Answers.
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Of what material is the x-ray tube component numbered 5 in Figure 7-18 made of? - correct answer Tungsten
All the following x-ray circuit devices are located between the incoming power supply and the primary coil of the high-voltage transformer excep...
Of what material is the x-ray tube component numbered 5 in Figure 7-18 made of? - correct answer
Tungsten
All the following x-ray circuit devices are located between the incoming power supply and the primary
coil of the high-voltage transformer except - correct answer The rectifiers
All of the following are daily quality control (QC) steps to ensure optimal diagnostic images on a digital
monitor, except: - correct answer Evaluate the QC patterns at the periphery
and verify that all letters and numbers appear
Which of the following systems function(s) to compensate for changing patient/part thicknesses during
fluoroscopic procedures? - correct answer Automatic brightness control
Magnification fluoroscopy is only possible with: - correct answer Multifield
image intensifiers
An exposed image plate will retain its original image quality for about - correct answer
8 hours
Which of the following information is necessary to determine the maximum safe kilovoltage using the
appropriate x-ray tube rating chart?
1. Milliamperage and exposure time
2. Focal-spot size
3. Imaging-system speed - correct answer 1 and 2 only
Which of the following combinations can potentially offer the greatest heat-loading capability? - correct
answer 12-degree target angle, 1.2-mm actual focal spot
, In the radiographic rating charts shown below, what is the maximum safe mA that may be used with 0.1-
second exposure and 120 kVp, using the three-phase, 2-mm focal spot x-ray tube? - correct answer
600
In digital imaging, artifacts arise from a number of sources, including which of the following? - correct
answer All of these may be sources of image artifacts
Which of the following best describes the device used to collect light emitted by storage plate
phosphors? - correct answer Photodetector
A test pattern, such as the TG 18-CT test pattern, is used to qualitatively evaluate - correct answer
The luminance response of a digital display monitor
Order the following PSP layers correctly from top to bottom
1. Reflective layer
2. Protective layer
3. Conductive layer
4. Support layer
5. Phosphor layer - correct answer 2, 5, 1, 3, 4
Which of the following materials may be used as grid interspace material?
1. Lead
2. Plastic
3. Aluminum - correct answer 2 and 3 only
A device used to ensure reproducible radiographs, regardless of tissue-density variations, is the - correct
answer AEC
One advantage of a battery-powered mobile radiographic unit is: - correct answer
Electrical power is available to drive itself
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