Radiographers use which of the following basic principles to enact ALARA?

Read the preceding Directed Reading and choose the answer that is most correct based on the article.

QUIZ ID: 19803-01
Radiation Physics,
Biology, and Protection

4. Which of the following is true regarding x-rays?
1. They are invisible.
2. They have no mass.

3. They produce electric and magnetic fields.
a. 1 and 2
b. 1 and 3
c. 2 and 3
d. 1, 2, and 3

5. A(n) ______ can travel a great distance and typically requires a hydrogen shield to contain it.
a. proton
b. alpha particle
c. neutron
d. beta particle

6. Radiation quantity is governed by the voltage used and regulates the x-ray penetrability of the beam.
a. true
b. false

1. The substance of which a physical object is composed is known as:
a. mass.
b. matter.
c. weight.
d. energy.

2. ______ energy describes the ability of an object to do work simply by virtue of its position.
a. Potential
b. Chemical
c. Electrical
d. Thermal

3. ______ energy exists in 2 forms: ionizing radiation and nonionizing radiation.
a. Thermal
b. Kinetic
c. Chemical
d. Electromagnetic

12. Radiographers use which of the following basic principles to enact ALARA?
1. time
2. distance
3. shielding
a. 1 and 2
b. 1 and 3
c. 2 and 3
d. 1 ,2, and 3

7. ______ is responsible for the majority of scatter produced during diagnostic imaging.
a. Photoelectric absorption
b. Pair production
c. Compton scatter
d. Photodisintegration

8. The most commonly observed effect of radiation exposure is:
a. erythema.
b. epilation.
c. cataracts.
d. sterility.

9. Symptoms of hematologic syndrome include all of the following except:
a. nausea.
b. constipation.
c. leukopenia.
d. fever.

10. Symptoms of central nervous system syndrome include:
1. ataxia.
2. meningitis.
3. systemic vasculitis.
a. 1 and 2
b. 1 and 3
c. 2 and 3
d. 1, 2, and 3