A.Increased draft
B.Pitch
C.Roll
D.Change in trim
您可能感兴趣的试卷
你可能感兴趣的试题
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
A.transmitter
B.antenna system
C.indicator
D.modulator
A.persistence
B.pulse repetition rate
C.pulse length
D.resolution
A.Relative
B.TRUE
C.Compass
D.Magnetic
A.magnetism from the earth's magnetic field
B.misalignment of the compass
C.magnetism within the vessel
D.a dirty compass housing
A.deviation minus variation
B.variation plus compass course
C.combined variation and deviation
D.difference between true and magnetic heading
A.vessel's geographic position
B.vessel's heading
C.earth's magnetic field
D.influence of the magnetic materials of the vessel
最新试题
Error may be introduced into a magnetic compass by（）.
（）should be used during the poor visibility if the radar’s screen shows heavy sea returns.
（）20 targets can be tracked at one time．When maximum tracking capacity is reached，no further acquisitions are possible.
Compass deviation is caused by（）.
An indirect radar echo is caused by a reflection of the main lobe of the radar beam off the observer’s vessel. Which of the following is NOT a characteristic of indirect echoes?（）.
An ECDIS is required to display which information?（）
A deadhead is a(n)（）.
A radar display which is oriented，so that north is always at the top of the screen，is called a(n)（）.
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?（）.
The microsecond unit of time is used in radar applications. The microsecond represents which of the following?（）.