Radiobiology MCQs with Answers

adminApril 12, 2024

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Welcome to the Radiobiology MCQs with Answers. In this post, we have shared Radiobiology Online Test for different competitive exams. Find practice Radiobiology Practice Questions with answers in Physics Tests exams here. Each question offers a chance to enhance your knowledge regarding Radiobiology .

Radiobiology Online Quiz

By presenting 3 options to choose from, Radiobiology Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of Radiobiology Questions and Answers and click over the correct answer.

Test Name: Radiobiology MCQ Quiz Practice
Type: Quiz Test
Total Questions: 40
Total Marks: 40
Time: 40 minutes

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Radiobiology

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1 / 40

Which of the following is a stochastic effect of radiation?

Cancer

Cataracts

Radiation burn

2 / 40

The process of cells dying due to radiation exposure is called ________.

Apoptosis

Mitosis

Necrosis

3 / 40

Which of the following radiation types is most penetrating?

Beta

Alpha

Gamma

4 / 40

The linear energy transfer (LET) of radiation ________.

Is unaffected by atomic number

Increases with higher atomic number

Decreases with higher atomic number

5 / 40

The linear non-threshold model suggests that ________.

Any dose of radiation can cause harm

Low doses of radiation cause harm

Only high doses of radiation cause harm

6 / 40

Which of the following is NOT a type of radiation?

Beta

Alpha

Gamma

7 / 40

The process of cell division is most sensitive to radiation during the ________ phase.

Mitotic

8 / 40

The process of DNA breaking into smaller fragments due to radiation exposure is called ________.

Amplification

Fragmentation

Ligation

9 / 40

Which of the following is a deterministic effect of radiation exposure?

Cancer

Radiation burn

Genetic mutation

10 / 40

The fractionation of radiation therapy refers to ________.

Using different types of radiation

Delivering radiation in divided doses

Increasing the total radiation dose

11 / 40

The oxygen effect refers to ________.

Decreased damage in the presence of oxygen

No effect of oxygen

Increased damage in the presence of oxygen

12 / 40

The process by which radiation changes the structure of a material through which it passes is called ________.

Ionization

Filtration

Activation

13 / 40

Which of the following is NOT a characteristic of gamma rays?

Penetration

Charge

Mass

14 / 40

Which of the following is NOT a characteristic of alpha particles?

High energy

Low penetration

High LET

15 / 40

Which of the following is a form of indirect DNA damage by radiation?

Single-strand breaks

Double-strand breaks

Free radicals

16 / 40

The unit of absorbed dose is ________.

Sievert

Roentgen

Gray

17 / 40

The inverse square law governs the ________.

Radiation intensity

Radiation quality

Radiation dose

18 / 40

The radiation weighting factor (WR) is highest for ________.

Gamma

Alpha

Beta

19 / 40

The process of cells dying due to radiation exposure is known as ________.

Necrosis

Mitosis

Apoptosis

20 / 40

The RBE of a radiation type is highest for ________.

Beta particles

Alpha particles

Gamma rays

21 / 40

Which of the following is a measure of radiation output in air?

LET

Exposure

Dose

22 / 40

Biological effects of radiation primarily depend on ________.

Wavelength

Dose

LET

23 / 40

Which of the following is a stochastic effect of radiation exposure?

Cancer

Skin redness

Nausea

24 / 40

The term “LET” stands for ________.

Linear Energy Transfer

Longitudinal Efficiency Total

Light Emission Technology

25 / 40

The RBE of a radiation type depends on its ________.

LET

Wavelength

Dose

26 / 40

The process of repairing DNA damage in cells is called ________.

DNA repair

Apoptosis

Mitosis

27 / 40

The half-life of a radioactive material is the time taken for ________.

Half of the material to decay

All of the material to decay

One quarter of the material to decay

28 / 40

The process of radioactive decay results in the emission of ________.

Beta

Gamma

Alpha

29 / 40

The concept of “relative biological effectiveness” (RBE) compares the ________.

Effectiveness of different types of radiation

Energy output of different types of radiation

Absorbed doses of different types of radiation

30 / 40

The RBE of a radiation type depends on its ________.

Dose

LET

Wavelength

31 / 40

Which of the following is a type of deterministic effect of radiation?

Genetic mutation

Cancer

Radiation burn

32 / 40

The process of radiation therapy planning involves ________.

Diagnosing radiation-related illnesses

Determining the optimal dose and delivery method

Monitoring patient response to treatment

33 / 40

The law of Bergonie and Tribondeau states that ________.

Non-dividing cells are more sensitive

Highly mitotic cells are more sensitive

Large cells are more sensitive

34 / 40

The quality factor (QF) accounts for ________.

Energy of radiation

Penetration of radiation

Biological effectiveness of radiation

35 / 40

The process of repairing radiation-induced DNA damage in cells is called ________.

DNA repair

Mitosis

Apoptosis

36 / 40

Which of the following tissues is most sensitive to radiation?

Bone marrow

Muscle

Nerve

37 / 40

Which of the following radiation types has the highest LET?

Beta

Gamma

Alpha

38 / 40

Which of the following radiation types is most easily stopped by a piece of paper?

Gamma

Alpha

Beta

39 / 40

The unit of equivalent dose is ________.

Sievert

Roentgen

Gray

40 / 40

Radiation with high LET is more likely to cause ________.

Indirect DNA damage

Direct DNA damage

No DNA damage

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adminApril 12, 2024

0 20 1 minute read