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Density and Contrast Test

Enter the letter for the matching Answer
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1.
Increased part thickness will result in a _______ of density.
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2.
Does film processing effect contrast?
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3.
grids absorb scatter radiation which affect ______.
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4.
Films with a (wide/narrow) latitude will have short scale contrast which means there are few shades of gray.
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5.
destructive pathology will increase/decrease density
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6.
Few shades of gray, low kVp, short scale, narrow latitude will have a (high/low) contrast?
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7.
many shades of gray will have a (low/high) contrast.
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8.
The controlling factor of contrast is ___.
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9.
____ controls the current through the xray tube.
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10.
High contrast has a (long/short) scale contrast.
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11.
Will Film screen speed effect contrast?
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12.
Distance and Contrast are (directly/inversely) related?
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13.
Grids and density have a _______ relationship.
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14.
optimal density is __-__?
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15.
Short scale contrast is produced by _ _____ ___.
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16.
Because grids reduce the amount of scatter contrast is (increased/decreased)
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17.
the difference between adjacent tissues or shades of gray
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18.
Film/screen speed has a _______ relationship with density.
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19.
Does the anode heel effect affect contrast?
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20.
What does filtration alter?
A.
kVp
B.
high
C.
increased
D.
Yes.
E.
directly
F.
a lower kVp
G.
short (few shades of gray)
H.
mAs
I.
increase
J.
density
K.
contrast
L.
narrow
M.
inverse
N.
intensity
O.
No
P.
no
Q.
low
R.
decrease
S.
0.25-2.25
T.
direct
Type the Answer that corresponds to the displayed Question.
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21.
The difference between adjacnt densities is ________.
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22.
If you increase OID then denisty will decrease/increase?
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23.
If you increase beam restriction contrast will ______.
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24.
If you increase filtration contrast will _______.
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25.
Beam restriction will ______ scatter photons.
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26.
Decreasing temp, time or rate during film processing will (increase/decrease) contrast.
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27.
what is produced by the photoelectric effect?
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28.
three forms of contrast are _____,______,______.
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29.
What would you use to to calculate the change in beam intensity?
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30.
primary function of contrast is to ____ _____ _____.

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