2-10.
You are using a sensitometer with
a light source that supplies an
exposure of 501 lux/seconds and a
21-step step tablet.
The film step
with the highest density receives
what amount of exposure?
1.
4.80 log/lux seconds
2.
2.70 log/lux seconds
3.
2.65 log/lux seconds
4.
2.10 log/lux seconds
Learning Objective:
Recognize
steps used to plot characteristic
curves.
2-11.
What does the vertical axis
represent on a characteristic
curve?
1.
Exposure
2.
Gamma
3.
Density
4.
Contrast
2-12.
What does the horizontal axis
represent on a characteristic
curve?
1.
Exposure
2.
Gamma
3.
Density
4.
Contrast
2-13.
On a characteristic curve, an
increase of exposure is indicated
in what relationship?
1.
From left to right
2.
From right to left
3.
From top to bottom
4.
From bottom to top
2-14.
What instrument is used to read the
steps on a sensitometric strip?
1.
Sensitometer
2.
Wedge spectrograph
3.
Exposure meter
4.
Densitometer
2-15.
At what location on a
characteristic curve is step 1
of a sensi-strip plotted?
1.
The lower right-hand corner
2.
The lower left-hand corner
3.
The upper right-hand corner
4.
The upper left-hand corner
2-16.
2-17.
2-18.
0
2-22,
A characteristic curve that is
drawn properly should have what
appearance?
1.
Straight lines connected
to each plotted point
2.
Very apparent angles
3.
A single, smooth-flowing line
4.
All points connected by curved
lines
What type of information should
you include on the graph of
a characteristic curve?
1.
The film type only
2.
The developer type only
3.
The processing temperature only
4.
All of the above
Learning Objective:
Identify
information that can be derived
from a characteristic curve.
Which of the following factors may
be derived from an analysis of a
characteristic curve?
1.
Contrast
2.
Effective speed
3.
Useful exposure range
4.
All of the above
IN ANSWERING QUESTIONS 2-19 THROUGH
REFER TO THE FOLDOUT, FIGURE 2-6, AT
THE BACK OF CHAPTER 2.
2-19.
What is the lowest density recorded
on the graph?
1.
1.00
2.
0.16
3.
0.10
4.
0.05
2-20.
What is the highest density
recorded on the graph?
1.
1.84
2.
2.10
3.
3.00
4.
4.50
2-21.
What is the density at step ll?
1.
1.50
2.
1.19
3.
0.66
4.
0.40
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