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MRI Scan

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1. What is the main principle behind an MRI scan?

A. X-ray diffraction

B. Nuclear magnetic resonance

C. Gamma ray spectroscopy

D. Electron microscopy

2. What type of radiation is used in an MRI scan?

A. Gamma rays

B. X-rays

C. Radio waves

D. Ultraviolet radiation

3. What is the main benefit of using MRI over other imaging techniques?

A. Higher resolution images

B. Lower radiation exposure

C. Ability to image soft tissue

D. All of the above

4. What type of contrast agents can be used in an MRI scan?

A. Radiographic contrast agents

B. Magnetic contrast agents

C. Ultrasound contrast agents

D. All of the above

5. What is the difference between a 1.5 Tesla and 3 Tesla MRI scan?

A. 1.5 Tesla has lower resolution images

B. 3 Tesla has higher resolution images

C. 1.5 Tesla has less radiation exposure

D. 3 Tesla has more radiation exposure

6. What is the most common type of MRI scan?

A. T1-weighted

B. T2-weighted

C. Diffusion-weighted

D. Dynamic contrast-enhanced

7. What is the purpose of using a contrast agent in an MRI scan?

A. To enhance the visibility of certain structures

B. To reduce the radiation exposure

C. To improve the resolution of the images

D. To reduce the scan time

8. What is the main difference between an MRI scan and a CT scan?

A. CT uses X-rays while MRI uses radio waves

B. CT is faster than MRI

C. CT has higher resolution images than MRI

D. CT has higher radiation exposure than MRI

9. Can an MRI scan be used to diagnose certain types of cancer?

A. Yes

B. No

C. Only certain types of cancer

D. Only in advanced stages

10. Can an MRI scan be used to monitor the progression of certain diseases?

A. Yes

B. No

C. Only certain types of diseases

D. Only in advanced stages

Answers:

    1. B
    2. C
    3. D
    4. B
    5. B
    6. B
    7. A
    8. A
    9. A
    10. A

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    Multiple Choice Questions (MCQs)

    The UPSC (Union Public Service Commission) Prelims exam is the first step in the selection process for the Indian Administrative Service (IAS), Indian Foreign Service (IFS), and Indian Police Service (IPS) among other civil services in India. The exam consists of two papers: General Studies Paper 1 and General Studies Paper 2 (also known as the Civil Services Aptitude Test or CSAT). The General Studies Paper 1 is worth 200 marks and is comprised of multiple choice questions (MCQs). The exam tests the candidate's knowledge of current events, Indian and World history, Indian and World geography, Indian polity and governance, economic and social development, general science and environmental ecology and biodiversity.

    The UPSC Prelims exam is a highly competitive exam and it is important for candidates to have a thorough understanding of the syllabus and to practice as many MCQs as possible to increase their chances of success.

    You will have to answer all the questions within a limited time frame. So practice time management techniques and use a timer while solving mock tests.

    The questions are designed to test the candidate's understanding of the subject matter and their ability to apply that knowledge in a practical context. So, MCQs on this website are prepared in that direction to make you conceptually strong.

    The MCQs in UPSC Prelims are generally of the following types:

    1. Factual: These questions test the candidate's knowledge of basic facts, figures, and dates.
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