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Q: Which of the following is used as a finishing coat for surfaces of X-ray rooms?
  • A. Parian cement
  • B. Barium plaster
  • C. Snowcrete
  • D. Colocrete
Correct Answer: Option B - Barium plaster–This is made from barium sulphate. It is use to apply as final coat on walls of X-ray rooms, since it absorbs, X-rays and hence ensure safety of people working in X-ray rooms. • Snow crete and colocrete cements–White and colored cement are used in plastering to get good appearance to the surface plastered. They are usually applied on external mass.
B. Barium plaster–This is made from barium sulphate. It is use to apply as final coat on walls of X-ray rooms, since it absorbs, X-rays and hence ensure safety of people working in X-ray rooms. • Snow crete and colocrete cements–White and colored cement are used in plastering to get good appearance to the surface plastered. They are usually applied on external mass.

Explanations:

Barium plaster–This is made from barium sulphate. It is use to apply as final coat on walls of X-ray rooms, since it absorbs, X-rays and hence ensure safety of people working in X-ray rooms. • Snow crete and colocrete cements–White and colored cement are used in plastering to get good appearance to the surface plastered. They are usually applied on external mass.