Nav tru or fals
Navigating RADAR Systems Quiz
Test your knowledge of RADAR technology and its applications with our comprehensive quiz! Designed for students, professionals, and enthusiasts alike, this quiz covers essential aspects of RADAR systems and ARPA technology.
- 54 challenging questions
- True or False format for quick answering
- Enhance your understanding of maritime navigation
1. The radio signals emitted by RADAR system do NOT work beyond the ionosphere
True
False
3. The duplexer protected the receiver from the high pulses of the transmitter.
True
False
5. An ARPA system in the hands of unqualified personnel is Not only dangerous but, can indirectly be the main reason for an accident.
True
False
6. The EBL measure the distance from your ship to the target object.
True
False
7. The X-band RADAR should detect a SOLAS ships more than 5,000 Gross Tons by 12 nautical miles minimum
True
False
8. The receiver amplifies the incoming echoes
True
False
9. The radio signals work best when the objects is further away from the receiver and NOT closer.
True
False
11. There is NO delays in the display of processed ARPA information, particularly on acquisition, particularly on acquisition and re-acquisition or when target maneuvers.
True
False
12. The VRM provides an accurate measurement of bearing to target
True
False
14. RADAR signals cannot be used beyond the stratosphere
True
False
15. ARPA converts raw radar echo to an analog signal which can be stored and used for calculation
True
False
16. A properly adjusted brilliance control is when you’ve seen on the display the trace is as bright as possible.
True
False
17. ARPA converts digital signal to a raw radar echo which can then be display.
True
False
18. A long pulse means better resolution in range.
True
False
21. Most ARPA system are less sensitive in auto-acquisition mode than in manual acquisition mode
True
False
22. The target detection performance of the equipment should be impaired when own ship is rolling or pitching up to +/- 10.
True
False
23. The S-band RADAR is less affected by target swop.
True
False
24. RADAR systems provide data regarding the type of the target being resolved.
True
False
25. RADAR system is prone to external interference by other medium.
True
False
26. An optical horizon is the point of the earth surface which is tangential to the propagated radar wave.
True
False
27. The bearing accuracy is generally better than the range accuracy of a radar.
True
False
28. A magnetron is generally installed in the scanner unit.
True
False
29. The duplexer ensure that all circuits connected to the radar system operate in a definite time relationship with each other.
True
False
A bistatic RADAR is a radar system that compares the received signal from a single radar pulse against itself with an aim of comparing the signal.
True
False
33. A RADAR system should be capable of displaying two-point targets on the same bearing separated by 20 meters in range, as two distant objects as per performance standards of RADAR.
True
False
36. A radar sweep is one complete 360-degree rotation of the antenna.
True
False
37. Magnetron converts the input into high frequency oscillation.
True
False
38. The x-band RADAR is less affected by rain and fog
True
False
41. Attenuation causes a decrease in echo strength.
True
False
43. The S-band RADAR should detect a typical navigation buoy by 4.6 nautical miles minimum.
True
False
46. A 3 GHz RADAR can determine and display the range and bearing of radar transponder
True
False
47. The equipment should switch automatically to the unstabilized head-up mode within two minutes after the azimuth stabilization has become ineffective.
True
False
48. The antenna transfers the transmitter energy to signals in space with the required distribution and efficiency.
True
False
49. RADAR system DO NOT have the capability of calculating the velocity of an object in motion
True
False
51. The RADAR should provide the means to enhance the visibility of targets in advance clutter conditions at close range.
True
False
52. A 10 cm RADAR is call S-Band with a frequency of 9000 MHz
True
False
53. The side lobe is the lobe containing the higher power
True
False
54. The function of the waveguide is to generate RF pulses.
True
False
55. The ARPA should be able to display on request with a relevant symbol at least three equally time-spaced past positions of any target being tracked.
True
False
56. Wavelength indicate the number of crest, which pass a fixed point per unit time
True
False
59. A 10 cm RADAR has a good performance on low altitude targets like buoy.
True
False
61. A short pulse means less resolution in range.
True
False
62. The past position of targets being tracked is used to check the validity of the ARPA’s tracking
True
False
63. When using short pulse, you will get weaker pulse, less radar range but better resolution in range.
True
False
66. The tunning control of the radar system will amplify the power output.
True
False
68. The fast time Control reduces weak echoes out to a limited distance from a ship.
True
False
69. The data provided by RADAR system is usually complete
True
False
70. A RACON emits a characteristics signal when triggered by the ship’s RADAR.
True
False
71. By increasing the peak power of RADAR, the minimum radar range can be provide
True
False
72. The RADAR system provide date regarding the type of the target being resolved.
True
False
76. The cursor position should gave a continuous read out to provide the range and bearing, measured from the consistent reference point.
True
False
78. Misinterpretation of display symbols may NOT cause severe problems.
True
False
81. The data collected by RADAR system is enough to tell whether the object was in motion or it was stationary
True
False
82. X-band radar has a wavelength of 10 cm.
True
False
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