100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
Radiation protection Test Exam Questions and Answers Latest Update $25.49   Add to cart
Quickly navigate to
Preview
  2.  
  3. Radiation Safety
  4.  
  5. Radiation safety

Exam (elaborations)

Radiation protection Test Exam Questions and Answers Latest Update
 5 views  0 purchase
  • Course
  • Radiation safety
  • Institution
  • Radiation Safety

1. Biologic material irradiated under hypoxic conditions is (A) more sensitive than when irradiated under oxygenated conditions (B) less sensitive than when irradiated under anoxic conditions (C) less sensitive than when irradiated under oxygenated conditions (D) unaffected by the p...

[Show more]

Preview 4 out of 45  pages

Document information

  • October 10, 2024
  • 45
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • radiation protection test exam questions and answe
  • 1 biologic material irradiated under hypoxic cond

Written for

  • Radiation safety
  • Radiation safety

Seller

avatar-seller
lectknancy

Reviews received

Content preview

Radiation protection Test Exam
Questions and Answers Latest Update
1. Biologic material irradiated under hypoxic conditions
is

(A) more sensitive than when irradiated under
oxygenated conditions

(B) less sensitive than when irradiated under
anoxic conditions

(C) less sensitive than when irradiated under
oxygenated conditions

(D) unaffected by the presence or absence o
oxygen - Answer-(C) less sensitive than when irradiated under
oxygenated conditions

2. According to the National Council on Radiation
Protection and Measurements (NCRP), the monthly
gestational dose-equivalent limit or embryo/ fetus
of a pregnant radiographer is

(A) 0.1 mSv
(B) 0.5 mSv
(C) 1.0 mSv
(D) 5.0 mSv - Answer-(B) 0.5 mSv

3. A time of 1.5 minutes is required for a particular
fluoroscopic examination, whose exposure rate is
275 mR/h. What is the approximate radiation
exposure for the radiologic staff present in the
fluoroscopy room during the examination?

(A) 183 mR
(B) 68.7 mR
(C) 18.33 mR
(D) 6.87 mR - Answer-(D) 6.87 mR

4. Stochastic/probabilistic effects of radiation are
those that

1. have a threshold

,2. may be described as "all-or-nothing" effects
3. are late effects

(A) 1 only
(B) 1 and 2 only
(C) 2 and 3 only
(D) 1, 2, and 3 - Answer-C) 2 and 3 only

5. What percentage of public exposure to ionizing
radiation is from medical sources?

(A) 5%
(B) 10%
(C) 25%
(D) 50% - Answer-(D) 50%

6. Which of the following cell types has the greatest
radiosensitivity in the adult human?

(A) Nerve cells
(B) Muscle cells
(C) Spermatids
(D) Lymphocytes - Answer-(D) Lymphocytes

7. Guidelines for the use fo protective shielding state
that gonadal shielding should be used

1. if the patient has reasonable reproductive
potential

2. when the gonads are within 5 cm of the
collimated field

3. when tight collimation is not possible

(A) 1 only
(B) 1 and 2 only
(C) 1 and 3 only
(D) 2 and 3 only - Answer-(B) 1 and 2 only

8. The interaction between ionizing radiation and the
target molecule that is most likely to occur is the

(A) direct effect
(B) indirect effect
(C) target effect

,(D) random effect - Answer-B) indirect effect

9. Sources o natural background radiation include

1. radon
2. internal sources
3. thoron

(A) 1 only
(B) 1 and 2 only
(C) 2 and 3 only
(D) 1, 2, and 3 - Answer-(D) 1, 2, and 3

10. The unit used to express kinetic energy released in
matter is the

(A) erg
(B) gray
(C) kerma
(D) rad - Answer-(C) kerma

11. Which acute radiation syndrome requires the largest
exposure before the associated effects become
apparent?

(A) Hematopoietic
(B) Gastrointestinal
(C) Central nervous system (CNS)
(D) Skeletal - Answer-(C) Central nervous system (CNS)

12. What is the established annual occupational
dose-equivalent limit for the lens of the eye?

(A) 250 mSv
(B) 150 mSv
(C) 50 mSv
(D) 10 mSv - Answer-(B) 150 mSv

13. Occupational radiation monitoring is required
when it is possible that the individual might receive
more than

(A) 5 mrem
(B) 10 mrem
(C) one-tenth the annual dose limit
(D) one- fourth the annual dose limit - Answer-(C) one-tenth the annual dose limit

, 14. Sources of natural background radiation contributing
to whole-body radiation dose include

1. dental x-rays
2. terrestrial radionuclides
3. internal radionuclides

(A) 1 only
(B) 1 and 2 only
(C) 2 and 3 only
(D) 1, 2, and 3 - Answer-(C) 2 and 3 only

15. Irradiation of water molecules within the body and
their resulting breakdown is termed

(A) epilation
(B) radiolysis
(C) proliferation
(D) repopulation - Answer-(B) radiolysis

16. Diagnostic x-radiation may be correctly described as

(A) low energy, low LET
(B) low energy, high LET
(C) high energy, low LET
(D) high energy, high LET - Answer-A) low energy, low LET

17. Which o the Following is (are) used to account For
the differences in tissue characteristics when determining
effective dose to biologic material?

1. tissue weighting actors (Wt)
2. Radiation weighting actors (Wr)
3. Absorbed dose

(A) 1 only
(B) 1 and 2 only
(C) 2 and 3 only
(D) 1, 2, and 3 - Answer-(A) 1 only

18. The x-ray interaction with matter that is responsible
for the majority of scattered radiation reaching
the image receptor (IR) is

(A) the photoelectric effect

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller lectknancy. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $25.49. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

76799 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$25.49
  • (0)
  Add to cart