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MDCB Practice Set 1 - Test 1 questions with answers.

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MDCB Practice Set 1 - Test 1 questions with answers.

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Institution MDCB

Module MDCB

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MDCB Practice Set 1 - Test 1 questions with answers.

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MDCB Practice Set 1 - Test 1 questions |\ |\ |\ |\ |\ |\ |\ |\

with answers |\

What is the approximate density of healthy lung tissue?
|\ |\ |\ |\ |\ |\ |\ |\

A. 0.30 g/cc
|\ |\

B. 0.95 g/cc
|\ |\

C. 1.00 g/cc
|\ |\

D. 1.03 g/cc - CORRECT ANSWERS ✔✔A
|\ |\ |\ |\ |\ |\

2. The accelerator component that injects electrons into
|\ |\ |\ |\ |\ |\ |\ |\

the linear accelerator is:
|\ |\ |\

A. a klystron.
|\ |\

B. an electron gun.
|\ |\ |\

C. a bending magnet.
|\ |\ |\

D. a thyratron. - CORRECT ANSWERS ✔✔B
|\ |\ |\ |\ |\ |\

3. Radiation damage to the fetus resulting in severe birth
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\

defects would most often occur when radiation was
|\ |\ |\ |\ |\ |\ |\ |\

delivered at which time post-fertilization? |\ |\ |\ |\

A. 0 - 2 weeks
|\ |\ |\ |\

B. 3 - 12 weeks
|\ |\ |\ |\

C. 13 - 24 weeks
|\ |\ |\ |\

, D. 23 - 32 weeks - CORRECT ANSWERS ✔✔B
|\ |\ |\ |\ |\ |\ |\ |\

4. The decay constant for a radioactive source that has a
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\

half-life of 60 days is: |\ |\ |\ |\

A. 0.012.
|\

B. 0.170.
|\

C. 0.662.
|\

D. 1.250. - CORRECT ANSWERS ✔✔A
|\ |\ |\ |\ |\

5. The function of a maze to a megavoltage treatment
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\

room is to:
|\ |\

A. keep operators as remote from the machine as
|\ |\ |\ |\ |\ |\ |\ |\ |\

possible.
B. attenuate photons originating from the head of the
|\ |\ |\ |\ |\ |\ |\ |\ |\

linear accelerator.
|\

C. separate the primary and scattered components of the
|\ |\ |\ |\ |\ |\ |\ |\ |\

beam.
D. minimize radiation levels at the door. - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\

ANSWERS ✔✔D |\

6. The anatomic location of the seminal vesicles is:
|\ |\ |\ |\ |\ |\ |\ |\

A. inferior to the prostate and angled anteriorly near the
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\

bladder.

Document information

Uploaded on: December 9, 2025
Number of pages: 15
Written in: 2025/2026
Type: Exam (elaborations)
Contains: Questions & answers

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