单项选择题
A.persistence B.pulse repetition rate C.pulse length D.resolution
You are using a radar in which your own ship is shown a...
单项选择题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.Relative B.TRUE C.Compass D.Magnetic
Compass deviation is caused by（）.A.magnetism from the e...
单项选择题Compass deviation is caused by（）.
A.magnetism from the earth's magnetic field B.misalignment of the compass C.magnetism within the vessel D.a dirty compass housing
Compass error is equal to the（）.A.deviation minus varia...
单项选择题Compass error is equal to the（）.
A.deviation minus variation B.variation plus compass course C.combined variation and deviation D.difference between true and magnetic heading
