Radiology
Objective Type Questions
(Series –
44)
Q. 1. The photosensitive material used in
x-rays films consist of
(a). cellulose
(b). silver bromide
(c). zinc sulphide
(d). cadmium tungstate
Q. 2. The photoelectric interaction occurs
primarily in
(a). L cell
(b). K cell
(c). outer cell
(d). all shells equally
Q. 3. Grid is a device which is used for
(a). reducing scattered radiation
(b). reducing patients exposure time
(c). reducing the contrast of the x-ray
(d). all of the above
Q. 4. Unit of one dose of radiation absorbed
is,
(a). grey
(b). roentgen
(c). curie
(d). Becquerel
Q. 5. The thickness of stomach in ultrasound
(a). 0.2mm
(b). 5mm
(c). 7mm
(d). 10mm
Q. 6. Thickness of lead apron to prevent
radiation
(a). 1mm
(b). 0.3mm
(c). 0.5mm
(d). 7mm
Q. 7. Isotope used for liver scan is
(a). technetium
(b). I-131
(c). I-132
(d). Co-60
Q. 8. Radioactive cobalt emits,
(a). gamma rays
(b). beta rays
(c). alpha rays
(d). neutrons
Q. 9. Latest source of neutrons for radiotherapy
is,
(a). strontium -90
(b). calcifornium-256
(c). I-131
(d). Radium-226
Q. 10. X-ray films are least sensitive to
which coloured light,
(a). violet
(b). blue
(c). yellow
(d). red
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Answers
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Q.
1 -
(b)
Q.
3 -
(a)
Q.
5 -
(b)
Q.
7 -
(a)
Q.
9 -
(b)
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Q.
2 -
(b)
Q.
4 -
(a)
Q.
6 -
(c)
Q.
8 -
(a)
Q.10 - (d)
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