1-37.
The maximum range of a radar is
determined by which of the following
factors?
The pulse length of the radar
2 .
1.
3 .
The range resolution of the radar
The pulse repetition frequency of the
radar
4.
The amplitude of the radar wave
1-38.
What would be the maximum unambiguous
range of a radar with a pulse repetition
frequency (PRF) of 750?
1.
62 miles
2.
124 miles
3.
248 miles
4.
496 miles
1-39.
Range folding occurs when back scattered
energy from a target reaches the radar
1.
while another pulse is being
transmitted.
2.
after another pulse has been
transmitted.
3.
before another pulse is transmitted.
1-40.
As range to a target increases, what
happens to (a) the radar’s pulse volume, and
(b) the power of the radar pulse?
1. (a) increases (b) increases
2. (a) increases (b) decreases
3. (a) decreases (b) decreases
4. (a) decreases (b) increases
1-41.
Assuming two targets are equidistant from
a radar, how far must they be apart in order
for the radar to detect them separately?
1-42.
Which element has the most significant
impact on the refraction of radar waves?
1.
Wind
2.
Pressure
3.
Moisture
4.
Temperature
1-43.
Under normal refractive conditions,
N-values will
1.
increase with height.
2.
decrease with height.
3.
remain equal with height.
Figure 1-C
IN ANSWERING QUESTION 1-44, REFER TO
FIGURE 1-C.
1-44.
What type of refractive condition is
depicted?
1.
Normal
2.
Subrefraction
3.
Superrefraction
4.
Ducting
1-45.
Which of the following conditions produces
a net gain of returned radar energy?
1.
Back scattering
2.
Scattering
3.
Absorption
4.
Attenuation
1.
One-half pulse length
2.
More than one pulse length
3.
One-half beam width
4.
More than one beam width
