MDCB EXAM QUESTIONS AND ANSWERS. A+ GRADED
GUIDE.
WAN stands for:
A. Wide Area Network
B. World Area Network
C. Wide Artificial Network
D. Wide Access Network
A
Field uniformity can be checked by measuring:
A. field size dependence of output
B. beam output
C. flatness & symmetry
D. light field coincidence against gantry angulation
C
The isocenter of a clinical linac can be checked by:
A. optical means
B. mechanical means
C. radiation means
D. all of the answers are correct
D
The professional organization in the U.S. that offers certification in medical dosimetry is:
A. AAMD
B. MDCB
C. JRCERT
,D. ASTRO
B
Match the parts of Title 10 with the areas that they regulate:
Areas = Transportation of radioactive materials, Medical use of by product (clinically related
regulations), Licensing requirements, Notices and instruction of workers, Standards for protection
(including ALARA)
Part 19
Part 20
Part 30
Part 35
Part 71
Part 19 = Notices and instruction of workers
Part 20 = Standards for protection (including ALARA)
Part 30 = Licensing requirements
Part 35 = Medical use of by product (clinically related regulations)
Part 71 = Transportation of radioactive materials
If a CT image has a matrix size of 1024 x 1024 , and a field of view (FOV) measuring 40 x 40 cm, what is
the pixel size?
A. 0.2 mm
B. 0.4 mm
C. 0.64 mm
D. 1.0 mm
B
What is "virtual simulation"?
A. the patient's treatment is planned from CT images and then has the plan verified on the simulator
B. the patient's treatment is planned from CT images and then the plan is verified on the treatment
machine
C. the patient has reference marks placed at the simulator, a plan is done and then a CT scan verifies
appropriateness of the plan
, D. the patient is setup clinically in the treatment room, treated and then a verification simulation is
done
B
According to the AAPM standards (TG40), when performing periodic linear accelerator quality
assurance procedures, which of the following is the acceptable tolerance for electron flatness?
A. 1%
B. 2%
C. 3%
D. 4%
E. 5%
C
Advantages of CT simulators include all of the following EXCEPT:
A. the ability to obtain an accurate contour
B. ease in tumor localization in 3D
C. cross-sectional information shows the relationship between organs
D. the geometry of the treatment machine is well duplicated by the CT equipment
D
Which of the following will attenuate sound waves the least?
A. air
B. lung tissue
C. soft tissue
D. bone
C
Which of the following is 3 dimensional in nature?
A. a matrix
GUIDE.
WAN stands for:
A. Wide Area Network
B. World Area Network
C. Wide Artificial Network
D. Wide Access Network
A
Field uniformity can be checked by measuring:
A. field size dependence of output
B. beam output
C. flatness & symmetry
D. light field coincidence against gantry angulation
C
The isocenter of a clinical linac can be checked by:
A. optical means
B. mechanical means
C. radiation means
D. all of the answers are correct
D
The professional organization in the U.S. that offers certification in medical dosimetry is:
A. AAMD
B. MDCB
C. JRCERT
,D. ASTRO
B
Match the parts of Title 10 with the areas that they regulate:
Areas = Transportation of radioactive materials, Medical use of by product (clinically related
regulations), Licensing requirements, Notices and instruction of workers, Standards for protection
(including ALARA)
Part 19
Part 20
Part 30
Part 35
Part 71
Part 19 = Notices and instruction of workers
Part 20 = Standards for protection (including ALARA)
Part 30 = Licensing requirements
Part 35 = Medical use of by product (clinically related regulations)
Part 71 = Transportation of radioactive materials
If a CT image has a matrix size of 1024 x 1024 , and a field of view (FOV) measuring 40 x 40 cm, what is
the pixel size?
A. 0.2 mm
B. 0.4 mm
C. 0.64 mm
D. 1.0 mm
B
What is "virtual simulation"?
A. the patient's treatment is planned from CT images and then has the plan verified on the simulator
B. the patient's treatment is planned from CT images and then the plan is verified on the treatment
machine
C. the patient has reference marks placed at the simulator, a plan is done and then a CT scan verifies
appropriateness of the plan
, D. the patient is setup clinically in the treatment room, treated and then a verification simulation is
done
B
According to the AAPM standards (TG40), when performing periodic linear accelerator quality
assurance procedures, which of the following is the acceptable tolerance for electron flatness?
A. 1%
B. 2%
C. 3%
D. 4%
E. 5%
C
Advantages of CT simulators include all of the following EXCEPT:
A. the ability to obtain an accurate contour
B. ease in tumor localization in 3D
C. cross-sectional information shows the relationship between organs
D. the geometry of the treatment machine is well duplicated by the CT equipment
D
Which of the following will attenuate sound waves the least?
A. air
B. lung tissue
C. soft tissue
D. bone
C
Which of the following is 3 dimensional in nature?
A. a matrix
