Radiology Technician Quiz

1. What is the main purpose of X-rays in radiology?

A) Diagnose diseases B) Check blood pressure C) Measure body temperature D) Replace surgery

2. Which of the following controls the penetration power of X-rays?

A) mA (milliampere) B) kVp (kilovoltage peak) C) Exposure Time D) SID (Source Image Distance)

3. What is the standard protective tool a radiology technician must use during exposure?

A) Apron B) Gloves C) Lead Shield D) Oxygen Mask

4. Which imaging technique is best for soft tissue examination?

A) CT Scan B) X-Ray C) MRI D) Fluoroscopy

5. What does ALARA stand for in radiation safety?

A) As Low As Reasonably Achievable B) As Large As Radiology Allows C) Always Lead And Repeat Accurately D) Avoid Lead And Radiation Always

6. What is the primary source of radiation exposure to radiologic technologists?

A) Patient scatter radiation B) X-ray tube leak C) Cosmic rays D) Building materials

7. Which of these is NOT an imaging modality?

A) MRI B) CT C) ECG D) Ultrasound

8. What is the full form of CT Scan?

A) Computerized Testing B) Computed Tomography C) Compiled Telemetry D) Controlled Test

9. Contrast agents are often used in which imaging procedure?

A) ECG B) MRI C) Spirometry D) EEG

10. Which body part is commonly scanned in a mammography test?

A) Lungs B) Brain C) Breast D) Heart

11. Which of these can produce ionizing radiation?

A) X-ray B) Ultrasound C) MRI D) ECG

12. What is the purpose of grid in radiography?

A) Store X-rays B) Increase patient dose C) Reduce scatter radiation D) Speed up exposure time

13. The SI unit for radiation dose is?

A) Hertz B) Coulomb C) Sievert D) Volt

14. Which technique provides real-time imaging?

A) MRI B) Ultrasound C) CT D) Fluoroscopy

15. TLD badge worn by technicians measures:

A) Blood Sugar B) Heart Rate C) Radiation Dose D) Lung Capacity

16. What is the role of collimator in X-ray machines?

A) Increase image size B) Scatter the beam C) Focus the X-ray beam D) Measure oxygen levels

17. Doppler ultrasound is mostly used to study:

A) Brain B) Bones C) Blood flow D) Kidneys

18. Which imaging procedure uses radioactive isotopes?

A) MRI B) PET Scan C) CT Scan D) X-ray

19. What happens if the Focal Spot Size is too large?

A) Sharper Image B) No change C) Blurred image D) Faster exposure

20. Why do we increase SID (Source-to-Image Distance)?

A) Decrease exposure time B) Reduce magnification C) Increase patient dose D) Avoid scatter

21. Which imaging test is best for detecting fractures?

A) Ultrasound B) MRI C) X-ray D) PET Scan

22. Which of these is non-ionizing radiation?

A) CT B) X-ray C) MRI D) Gamma Ray

23. Which imaging test uses sound waves?

A) X-ray B) Ultrasound C) MRI D) CT

24. Which factor mainly affects image contrast in X-ray imaging?

A) kVp B) mA C) SID D) Cassette size

25. Which department would you find C-Arm equipment?

A) ICU B) Operation Theatre C) Dental D) OPD

Radiology Technician Quiz

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