C1

Question 1

1. Which type of radiation can produce free radicals associated with biologic injury?*
   A. Radiation frequency
   B. Laser radiation
   C. Ultrasound
   D. Diagnostic x-ray

Answer 1

D. Diagnostic x-ray

Question 2

2. The filament transformer is:*
   A. An autotransformer
   B. A step-up transformer
   C. A step-down transformer
   D. Located at high voltage section

Answer 2

C. A step-down transformer

Question 3

3. If SID is doubled, radiographic density .*
   A. Not affected
   B. Reduced by half
   C. Reduced by one-fourth
   D. Doubles

Answer 3

C. Reduced by one-fourth

Question 4

4. Which factor has no influence on response to radiant exposure*
   A. Sex
   B. Age
   C. Dose Fraction
   D. Occupation

Answer 4

D. Occupation

Question 5

5. Energy can be:*

A. Created but not destroyed
B. Measured in rad
C. Destroyed but not created
D. Transformed into matter

Answer 5

D. Transformed into matter

Question 6

6. The ionization of gases is the basis of operation of:*
7. Ionization chambers
8. Automatic exposure controls
9. Fluoroscopic screens

A. 1 and 2 only
B. 2 and 3 only
C. 1 and 3 only
D. 1, 2 and 3 only

Answer 6

A. 1 and 2 only

Question 7

7. Which type of chart describes what technical factors are safe and unsafe for continuous tube operation?*
   A. Tube Rating Chart
   B. Housing Cooling Curves
   C. Heating Curves
   D. Cooling Curves

Answer 7

A. Tube Rating Chart

Question 8

8. On which type of generator does the radiographer set neither mA nor mAs?
   A. Thermionic
   B. Single-phase
   C. Three-phase

D. Falling-load

Answer 8

D. Falling-load

Question 9

9. Which of the following are parts of the anode?*
10. Filament
11. Target
12. Rotor

A. 1 and 2 only
B. 1 and 3 only
C. 2 and 3 only
D. 1, 2 and 3

Answer 9

C. 2 and 3 only

Question 10

10. What device would normally generate power for a 20-MeV linear accelerator?*
    0/1
    A. Single-phase generator
    B. Three-phase generator
    C. Magnetron
    D. Klystron

Answer 10

D. Klystron

Question 11

11. The penetration of the beam in diagnostic x-ray is by the:
    *
    1/1
    A. Grid
    B. Filament
    C. mAs
    D. kVp

Answer 11

D. kVp

Question 12

12. Which of the following are particulate radiations?*
13. Alpha
14. Beta
15. Gamma
    1/1
    A. 1 and 2 only
    B. 1 and 3 only
    C. 1, 2 and 3
    D. 2 and 3 only

Answer 12

A. 1 and 2 only