TESTBANK FOR RADIOGRAPHIC IMAGING AND EXPOSURE 5TH EDITION BY TERRI L. FAUBER QUESTIONS & ANSWERS WITH RATIONALES COMPLETE (CHAPTER 1- 10)

RADIOGRAPHIC IMAGING AND EXPOSURE 5TH EDITION FAUBERTEST BANK Chapter 01: Radiation and Its Discovery Fauber: Radiographic Imaging and Exposure, 5th Edition MULTIPLE CHOICE When were x-rays discovered? October 8, 1985 November 8, 1895 January 23, 1896 August 15, 1902 ANS: B X-rays were discovered by Wilhelm Conrad Roentgen on November 8, 1895. REF: p.1 What type of tube was Roentgen working with in his lab when x-rays were discovered? Crookes tube Fluorescent tube High-vacuum tube Wurzburg tube ANS: A Roentgen was working with a low-vacuum tube known as a Crookes tube. REF: p.2 Which of the following terms could be defined as the instantaneous production of light onlyduring an interaction between a type of energy and some element or compound? Phosphorescence Afterglow Glowing Fluorescence ANS: D Fluorescence is the instantaneous emission of light from a material due to the interaction withsome type of energy. REF: p.2 Barium platinocyanide was the: type of dark paper Roentgen used to darken his laboratory. material Roentgen used to produce the first radiograph of his wife’s hand. metal used to produce the low-vacuum tube. fluorescent material that glowed when the tube was energized. ANS: D A piece of paper coated with barium platinocyanide glowed each time Roentgen energized histube. REF: p.2 The first radiograph produced by Roentgen, of his wife’s hand, required an exposure time of: 15 s. b. 150 s. 15 min. 150 min. ANS: C It took a 15-min exposure time to produce the first radiograph. REF: p.3 The letter x in x-ray is the symbol for: electricity. the unknown. penetrating. discovery. ANS: B The letter x represents the mathematical symbol of the unknown. REF: p.3 The first Nobel Prize for physics was received in 1901 by: Marie Curie. William Crookes. Wilhelm Roentgen. Albert Einstein. ANS: C Wilhelm Roentgen received the first Nobel Prize for physics in 1901. REF: p.4 X-rays were at one time called: Becquerel rays. Roentgen rays. Z-rays. none of the above. ANS: B X-rays were at one time called Roentgen rays. REF: p.4 Erythema, an early sign of biologic damage due to x-ray exposure, is: reddening of the skin. a malignant tumor. a chromosomal change. one of the most serious effects of x-ray exposure. ANS: A Erythema is reddening and burning of the skin, an early and less serious effect of exposure tolarge doses of x- radiation. REF: p.5 X-rays have which of the following properties? Electrical Magnetic Chemical A and B A and C ANS: D X-rays, a type of electromagnetic radiation, have both electrical and magnetic properties. REF: p.5 The distance between two successive crests of a sine wave is known as: an angstrom. frequency. the Greek letter nu. wavelength ANS: D The distance between two successive crests or troughs of a sine wave is the measure of itswavelength. REF: p.6 X-rays used in radiography have wavelengths that are measured in: angstroms. millimeters. centimeters. hertz. ANS: A X-rays in the range used in radiography have wavelengths that are so short that they aremeasured in angstroms. REF: p.6 The frequency of a wave is the number of waves passing a given point per given unit of time. Frequency is measured in: angstroms. hertz. inches. eV. ANS: B The unit of frequency is hertz. The frequency of x-rays in the radiography range varies fromabout 3  1019 to 3  1018 Hz.