ASSIGNMENT 1
NOTE:
IN
THIS
ASSIGNMENT,
FIGURES
MENTIONED IN THE QUESTIONS ARE FOUND
IN THE TEXT.
1-1.
The term radar is an acronym made from the
words
1.
radio, detection, and roaming
2.
radio, distance, and ranging
3.
radio, detection, and ranging
4.
radio, detection, or ranging
1-2.
Radar surface angular measurements are
normally made from which direction?
1.
North/south
2.
East/west
3.
Counter-clockwise from true north
4.
Clockwise from true north
1-3.
The angle measured clockwise from true north
in the horizontal plane defines which of the
following terms?
1.
True bearing/azimuth
2.
True horizontal plane
3.
Line-of-sight range
4.
True north
1-4.
What is the primary limiting factor for
maximum range of a pulse-radar system?
1.
Carrier frequency
2.
Peak power of transmitted pulse
3.
Receiver sensitivity
4.
Pulse-repetition frequency
1-5.
The angle between the centerline of the ship
and a line pointed directly at a target is known
by what term?
1.
Relative bearing
2.
True bearing
3.
Angle north
4.
Angular bearing
1-6.
What is the most common method used to
transmit radar energy?
1.
Continuous-wave
2.
Pulse-modulation
3.
Doppler-wave
4.
Frequency-modulation
1-7.
What characteristic of continuous-wave radar
makes it difficult, if not impossible, to get
accurate range measurements?
1.
Doppler effect
2.
Missile guidance
3.
Illumination
4.
No specific stop time
1-8.
Range resolution is defined as the ability of a
radar to perform what action?
1.
Separate objects at the same range, but
slightly different bearings
2.
Distinguish between two targets on the
same bearing, but at slightly different
ranges
3.
Separate objects at different ranges, but
slightly different bearings
4.
Distinguish between two targets on
different bearings, but at the same range
1-9.
Which of the following factors affect(s) radar
performance?
1.
Operator skill
2.
Electronic Attack activity
3.
Weather conditions
4.
All of the above
1-10.
According to figure 1-4, what is considered
the heart of a pulse radar system?
1.
Synchronizer
2.
Antenna system
3.
Transmitter
4.
Duplexer
1
Textbook Assignment: Introduction to Basic Radar Systems, chapter 1, pages 1-1 through 1-23 and
Fire-Control Radar Systems, chapter 2, pages 2-1 through 2-11.