Radiographer Q and A

15/08/2026

The occupational whole-body dose limit is approximately:
A. 20 mSv/year
B. 100 mSv/year
C. 1 mSv/year
D. 50 mSv/month

14/08/2026

The thyroid is most sensitive to:
A. Ionizing radiation
B. Ultrasound
C. MRI
D. Infrared

14/08/2026

Bone has an approximate CT value of:
A. 0 HU
B. –1000 HU
C. +1000 HU
D. –500 HU

14/08/2026

Q. The cathode of an X-ray tube is:
A. Positive
B. Negative
C. Neutral
D. Alternating

14/08/2026

Q. The primary function of an X-ray tube is to convert:
A. X-rays into electrical energy
B. Electrical energy into X-rays
C. Heat into electrical energy
D. Chemical energy into X-rays

16/07/2026

Q. CBCT is commonly used for evaluating:

A. TMJ disorders
B. Lung nodules
C. Renal stones
D. Cardiac valves

10/07/2026

Q. Radiation dose in DEXA is approximately:

A. 10 mSv
B. 1 mSv
C. 1–10 µSv
D. 100 mSv

05/06/2026

Q. Latent image formation is explained by
A. Roentgen theory
B. Edison effect
C. Thermionic effect
D. Gurney-Mott theory

03/06/2026

28/05/2026

PSC Bagmati
2nd paper of Radiographer
2083/02/12