Dental Radiography principals and Techniques 5th edition by Joen Iannucci
Dental Radiography principals and Techniques 5th edition by Joen Iannucci
$2.99
Chapter 03: Radiation Characteristics
Complete Chapter Questions With Answers
Sample Questions Are Posted Below
MULTIPLE CHOICE
| a. | quality |
| b. | quantity |
| c. | intensity |
| d. | wavelength |
ANS: A
Quality is used to describe the mean energy or penetrating ability of the x-ray beam. Quantity refers to the number of x-rays produced. Intensity is defined as the product of the quantity and quality per unit of area per time of exposure. Wavelength determines the energy and penetrating power of radiation.
DIF: Recall REF: Page 24 OBJ: 1
TOP: CDA, RHS, III.B.1. Demonstrate knowledge of the factors affecting x-ray production
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.1 Principles of radiophysics and radiobiology
| a. | X-rays with shorter wavelength have less penetrating power. |
| b. | X-rays with longer wavelength have less penetrating power. |
| c. | X-rays with longer wavelength are less likely to be absorbed by matter. |
| d. | Milliamperage controls the wavelength and energy of the x-ray beam. |
ANS: B
X-rays with longer wavelength have less penetrating power and x-rays with shorter wavelengths have more penetrating power. X-rays with longer wavelength are more likely to be absorbed by matter. Kilovoltage controls the wavelength and energy of the x-ray beam.
DIF: Recall REF: Page 24 OBJ: 2
TOP: CDA, RHS, III.B. Apply the principles of radiation protection and hazards in the operation of radiographic equipment
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.1 Principles of radiophysics and radiobiology
| a. | Exposure time |
| b. | Wavelength |
| c. | Voltage |
| d. | Ampere |
ANS: C
Exposure time refers to the interval of time during which x-rays are produced. Wavelength can be defined as the distance between the crest of one wave and the crest of the next wave. Voltage is a measurement of force that refers to the potential difference between two electrical charges. Ampere is the unit of measure used to describe the number of electrons, or current, flowing through the cathode filament.
DIF: Recall REF: Pages 3-4 OBJ: 1
TOP: CDA, RHS, I.B.1. Describe how to acquire radiographic images using various techniques | CDA, RHS, III.B. Apply the principles of radiation protection and hazards in the operation of radiographic equipment
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.1 Principles of radiophysics and radiobiology
| a. | electrons move from the anode to the cathode with more speed. |
| b. | photons move from the anode to the cathode with more speed. |
| c. | electrons move from the cathode to the anode with more speed. |
| d. | photons move from the cathode to the anode with more speed. |
ANS: C
Electrons move from the cathode to the anode. When the voltage is increased, electrons move from the cathode to the anode with more speed, striking the target with greater energy and force.
DIF: Comprehension REF: Page 24 OBJ: 2
TOP: CDA, RHS, I.B.1. Describe how to acquire radiographic images using various techniques | CDA, RHS, III.B. Apply the principles of radiation protection and hazards in the operation of radiographic equipment
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.1 Principles of radiophysics and radiobiology
Original price was: $30.00.$20.00Current price is: $20.00.
Original price was: $200.00.$150.00Current price is: $150.00.
Original price was: $90.00.$60.00Current price is: $60.00.
Original price was: $100.00.$70.00Current price is: $70.00.
Original price was: $40.00.$20.00Current price is: $20.00.
Original price was: $25.00.$15.00Current price is: $15.00.