Kerala PSC Radiographer Grade II Question Paper — PYQ Practice
Radiographer Grade II provisional answer key (90/2026/OL) — questions covering radiography fundamentals, anatomy, physics, and general knowledge. Practice the full paper on PSC PYQ.
Paper details
- Paper code: 90/2026/OL
- Format: Full previous year paper — PYQ practice with answers
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Preview questions (5)
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Question 1 Radiographer Grade II 2026
For heavier nuclei, stability requires:
Correct answer: C. More neutrons than protons
Heavy nuclei need extra neutrons to offset proton–proton repulsion. This stabilizes the nucleus.
Question 2 Radiographer Grade II 2026
The half-life of cobalt-60 is approximately 5.26 years. Its mean life is approximately:
Correct answer: C. 7.6 years
Mean life = 1.44 × half-life. For Co‑60, 1.44 × 5.26 ≈ 7.6 years.
Question 3 Radiographer Grade II 2026
A generator operating at 100 kV and 500 mA has a capacity of:
Correct answer: B. 50 KW
Power = kV × mA = 100 × 0.5 = 50 kW.
Question 4 Radiographer Grade II 2026
For a tungsten target (Z = 74), what voltage is required to get efficiency ~ 0.01 (1%)?
Correct answer: B. 150 kV
Efficiency increases with tube voltage and atomic number. At ~150 kV, tungsten achieves ~1%.
Question 5 Radiographer Grade II 2026
Added filtration results in a beam with:
Correct answer: B. Higher average energy
Filtration removes low‑energy photons, raising the average beam energy.
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