A.As many as
B.So many as
C.As much as
D.As more as
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A.Increased draft
B.Pitch
C.Roll
D.Change in trim
A.one-millionth part of a second
B.one-thousandth part of a second
C.one-hundredth part of a second
D.one-tenth part of a second
A.persistence
B.pulse repetition rate
C.pulse length
D.rotation rate
A.carrier frequency
B.pulse repetition rate
C.pulse length
D.pulse repetition time
A.magnetron
B.receiver
C.indicator
D.modulator
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The minimum range at which a target can be detected is basically determined by which of the following?().
A deadhead is a(n)().
The transmission time duration of a single pulse of radio-frequency energy is a function of the().
()should be used during the poor visibility if the radar’s screen shows heavy sea returns.
()the canal transit,the radar was operating.
You are using a radar in which your own ship is shown at the center,and the heading flash always points to 0°. If bearings are measured in relation to the flash,what type of bearings are produced?().
A barometer showing falling pressure indicates the approach of a().
Compass error is equal to the().
An ECDIS is required to display which information?()
How is variation indicated on a small-scale nautical chart?().