2-46. Train and elevation alignment between the alignment
reference and other combat systems equipment is
accomplished by comparing equipment when the
optical axes are made parallel by sighting on which of
the following elements?
1. Ship’s bow
2. Far horizon
3. Celestial body
4. Ship’s antenna
2-47. Tram and benchmarks are NOT used to facilitate
checking combat systems equipment at a definite train
and elevation position.
1. True
2. False
2-48. All of the following records are normally contained in
the combat systems/weapons smooth log except
which one?
1. Rounds fired
2. Alignment
3. Erosion
4. Weather
2-49. What is radar collimation?
1. The parallel alignment of the radar beam axis
only
2. The parallel alignment of the optical axis of the
radar antenna only
3. The parallel alignments of the radar beam axis
and the optical axis of the radar antenna
4. The displacement of the horn antenna
2-50. What is used to establish the boresight axis?
1. Feed horns
2. Horn antenna
3. Optical telescope
4. Audible measurement
2-51. During radar collimation, the horn antenna is con-
nected to what type of power-measuring equipment?
2-52. What is the primary radar for the TARTAR GMFCS?
1. AN/SPG-48C/D
2. AN/SPG-51C/D
3. AN/SPG-55C/D
4. AN/SPG-68C/D
2-53. The AN/SPG-51C/D radar uses what band for CWI?
1. D
2. I
3. J
4. X
2-54. Collimation of the Tartar radar consists of
determining the error between the beam axis
and the boresight axis and the errors between the
beams themselves.
1. RF/RF
2. RF/UHF
3. UHF/VHF
4. EHF/VHF
2-55. In addition to determining the relative positions of the
RF beam axis, collimation operations should ensure
that the beam pattern is in what formation?
1. Asymmetrical
2. Symmetrical
3. Horizontal
4. Oblique
2-56. A radar collimation shore tower is normally in what
height range?
1. 130 to 250 ft
2. 140 to 275 ft
3. 150 to 300 ft
4. 160 to 350 ft
2-57. Where on the tower array are the test antennas and the
optical targets mounted?
1. On the feedhorn
2. On the metal frame
3. On the side lobe
4. On the highest point
1. RF
2. HF
3. UHF
4. VHF
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