A.high pressure system
B.low pressure system
C.high dew point
D.low dew point
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A.At
B.In
C.During
D.With
A.Gain Control
B.Brilliant Control
C.Anti-clutter Sea Control
D.Sweep Intercept
A.KEYLOCK
B.REPEATER
C.STATIC INVERTER
D.ANTI-CLUTTER-SEA
A.As many as
B.So many as
C.As much as
D.As more as
A.Increased draft
B.Pitch
C.Roll
D.Change in trim
最新試題
（）is on the panel of radar.
The radar component that generates the radio-frequency energy in the form of short powerful pulses is which of the following?（）.
A radar display in which North is always at the top of the screen is a(n)（）.
A radar range to a small，charted object such as a light will provide a line of position in which form?（）.
Compass error is equal to the（）.
A radar display which is oriented，so that north is always at the top of the screen，is called a(n)（）.
Gyrocompass repeaters reproduce the indications of the master gyrocompass. They are（）.
A FICTIVE LINE DISPLAYED ON THE RADAR SCREEN SEPARATING THE FAIRWAY FOR INBOUND AND OUTBOUND VESSELS SO THAT THEY CAN SAFELY PASS EACH OTHER defines（）.
A tall object with a light on or near the shore，to act as a guide or warning to mariners is called（）.
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?（）.