Radiology
Objective Type Questions
(Series –
42)
Q. 1. Electric resistance is measured in
(a). ohm
(b). ampere
(c). ergs
(d). farad
Q. 2. The matter which convert one energy to another,
(a). Pb.zirconate titanate
(b). Calcium tungstate
(c). Zd.cadmium sulphide
(d). Barium sulphate
Q. 3. A device which converts one value of
alternating current to another is known as,
(a). rectifier
(b). x-ray tube
(c). transformer
(d). kenotron
Q. 4. The types of transformer used in basic
x-ray units are,
(a). autotransformer
(b). step up transformer
(c). step down transformer
(d). All
Q. 5. A transformer have more secondary coil
turns is,
(a). step up
(b). step down
(c). auto
(d). iso
Q. 6. The process by which AC is converted
into DC is known,
(a). rectification
(b). generator
(c). thermionic emission
(d). transformation
Q. 7. With the filament current, liberation
of electrons happened by process of,
(a). fluorescent
(b). photo emission
(c). light emission
(d). thermionic emission
Q. 8. The direction and magnitude is changed
repeatedly in,
(a). DC
(b). AC
(c). Both
(d). None
Q. 9. The power loss in the transformer is
due to
(a). cable loss
(b). hysteresis
(c). eddy currents
(d). all of the above
Q. 10.The power loss in a transformer caused
through the cycles of magnetization and demagnetization is called,
(a). cable loss
(b). hysteresis
(c). eddy current
(d). none
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Answers
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Q.
1 -
(a)
Q.
3 -
(c)
Q.
5 -
(a)
Q.
7 -
(d)
Q.
9 -
(d)
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Q.
2 -
(a)
Q.
4 -
(d)
Q.
6 -
(a)
Q.
8 -
(b)
Q.10 - (b)
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