One of the signals，other than a distress signal，that can be used by a vessel to attract attention is a(n)（）.
The signal to guide vessels in distress，which indicates，“This is the best place to land” is the（）.
One of the signals，other than a distress signal，that can be used by a rescue boat to attract attention is a/an（）.
The lifesaving signal indicating You are seen - assistance will be given as soon as possible is the（）.
An aircraft has indicated that he wants you to change course and follow him. You cannot comply because of an emergency on board. Which signal should you make?（）
Which is NOT a distress signal? （）
Which radiotelephone signal indicates receipt of a distress message?（）
The radar component that produces the synchronizing signal and triggers the indicator sweep is which of the following?（）.
The Urgency Signal（）indicates that the station calling has a very urgent message to transmit concerning the safety of a ship or aircraft，or of some person on board or within sight.
You have berthed in a area with other tank vessels. What signal is displayed by a vessel to indicate it is transferring flammable or combustible liquid cargo?（）.
In order to avoid misconnections due to a failed node in a Bidirectional Line Switched Ring (BLSR), Alarm Indication Signals (AISs) are sent on every channel normally terminating in that node. What is the name of this process?（）
A man aboard a vessel，signaling by raising and lowering his outstretched arms to each side，is indicating（）.
In the International Code of signals，a group of three letters indicates（）.
A distress signal（）.
A list signal of one white light indicates that the vessel is （）.
A yellow signal floating in the air from a small parachute，about 300 feet above the water，would indicate that a submarine（）.
A signal indicating zone time is preceded with the letter（）.
In order to avoid misconnections due to a failed node in an MS-SPRing， Alarm Indication Signals （AISs） are sent on every channel normally terminating in that node. What is the name of this process？（）
The signal for fire alarm on a ship must be indicated（）.
At night you observe a vessel ahead show three flashes of a white light. This signal indicates that the vessel ahead is（）.
Chapter 3: A transmitter converts the sensor’s output signal into a signal that can be recognized by the controller.（）
