LESSON TWO
Practice Exercise
The following items will test your grasp of the material covered in
this lesson. There is only one correct answer for each item. When
you have completed the exercise, check your answers with the answer
key that follows.
If you answer any item incorrectly, study again
that part of the lesson which contains the portion involved.
Situation:
You have been asked by a subordinate
the
following
questions pertaining to the Night Sight (AN/TAS-4A).
1.
What is the purpose of the boresight alinement?
A.
To
aline
the
night sight with the optical sight.
B.
To
aline
the
launch tube with the optical sight.
C.
To
aline
the
optical sight with the traversing unit.
D.
To
aline
the
weapon system with the target.
2.
What assembly contains the scan mirror?
A.
Afocal/cover.
B.
C.
Visual collimator.
D.
Objective lens/roof mirror.
3.
Where does the light come from that is applied to the back of
the scan mirror?
A.
Detector/Dewar.
B.
Eyepiece.
C.
LEDs.
D.
IR detectors.
4.
What focuses IR energy from the scan mirror on to the detector
array?
A.
Eyepiece.
B.
Scan mirror.
C.
Detector/Dewar.
D.
Optical imager.
46
MM4812
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