Navigatie partea 3- 300 intrebari
Authored by POPA Gabriel
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46 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Super-refraction is likely to cause....
decreased target detection ranges
no effect on detection ranges
increased target detection ranges
inaccuracies in detection ranges
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Super-refraction is normally caused by....
cool air over a warm sea surface
warm air over a cool sea surface
strong winds
disturbances in the upper atmosphere
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Target echoes appear along a line called the......
timebase.
scanner.
centre line.
heading marker.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Target echoes are received in the display unit in the form of....
an increased potential to the grid
a pulse from the brightening unit to the cathode
a signal from the scanner to the deflection coil
a current from the final anode to the screen
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Target ranges are obtained from......
the pulse repetition frequency.
the heading marker.
the range marker.
the bearing marker.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The best land target to use for a radar bearing is....
a sloping foreshore
a large headland
a small isolated feature
a coastal indentation
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The best land target to use for radar ranging is....
an edge of land
a small rock
a low-lying point
a cliff face
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