LMRT MOCK BOARD EXAM PREP QUESTIONS AND ANSWERS A+

LMRT MOCK BOARD EXAM PREP QUESTIONS AND ANSWERS A+ Increasing diagnostic filtration from 2.5 mm to 3.5 mm will have what effect on x-ray beam intensity? A. Increase in x-ray beam intensity B. Decrease in x-ray beam intensity C. No change in x-ray beam intensity - ANS-B. Decrease in x-ray beam intensity What is the minimum requirement for the evaluation of holes and cracks of shielding accessories? A. Annually B. Bi-annually C. Semi-annually D. Monthly - ANS-A. Annually Which of the listed x-ray generator types has the least amount of voltage ripple? A. Three-phase, twelve pulse B. Single-phase, half-wave C. Single-phase, full-wave D. Three-phase, six-pulse - ANS-A. Three-phase, twelve pulse An x-ray of the sternum uses a 72-inch source-to-image distance (SID) and a 10-inch by 12-inch image receptor. If the image of the sternum measures 9 cm and the actual sternum measures 6 cm, what is the magnification factor? A. 54 B. 1.5 C. 8 D. 0.67 - ANS-B. 1.5 A Picture Archiving and Communication System (PACS) network is used to connect which three of the following? (Select three) I. Radiologist reading station II. Imaging Equipment III. PACS servers IV. Electronic Medical Record (EMR) - ANS-I, II and III Federal law on radiation protection requires which two of the following? (Select two) I. Signage for radiation areas II. Maintaining personnel dose records III. Publication of personnel dose records IV. Dosimeters for all employees exposed to radiation - ANS-I and II Because of the binding energy of a K-shell tungsten atom, the minimum electron energy necessary to create a characteristic photon is: A. 80 kiloelectron volts (keV) B. 73 kiloelectron volts (keV) C. 69.5 kiloelectron volts (keV) D. 55 kiloectron volts (keV) - CONTINUES...