更多"A signal of one prolonged，one short"的相关试题:
[单项选择]A whistle signal of one prolonged，one short，one prolonged and one short blast，is sounded by a vessel（）.
A. at anchor
B. towing a submerged object
C. being overtaken in a narrow channel
D. in distress
[单项选择]A vessel sounding a fog signal of one short，one prolonged，and one short blast is indicating that the vessel is（）.
A. fishing
B. in distress
C. at anchor
D. not under command
[单项选择]A fog signal consisting of one prolonged blast followed by four short blasts would indicate thepresence of a（）.
A. vessel being towed
B. fishing vessel engaged in trawling
C. vessel at anchor warning of her location
D. power-driven pilot vessel on station underway
[单项选择]A sound signal of seven short blasts and one long blast given with the vessel’s sound system is（）.
A. Safety alarm
B. Distress alarm
C. Fire drill alarm
D. General emergency alarm
[单项选择]A list signal of one white light indicates that the vessel is （）.
A. on an even keel
B. listing about 1° to the side the light is displayed on
C. listing over 5° With the light displayed on the high side
D. listing，and the chutes should be directed to the side where the light is displayed
[单项选择]A vessel sounds one short blast. This signal indicates the vessel（）.
A. intends to alter course to starboard
B. intends to pass starboard to starboard
C. is altering course to starboard
D. intends to pass port to port
[单项选择]On the high seas，a fog signal consisting of one prolonged blast followed by four short blasts would indicate the presence of a（）.
A. vessel being towed
B. fishing vessel engaged in trawling
C. vessel at anchor warning you of her location
D. power-driven pilot vessel on station underway
[单项选择]You are underway in fog and you hear one prolonged blast followed by two short blasts.This is a vessel（）.
A. Towing
B. Engaged on pilotage duty
C. Aground in a fairway
D. Stopped and making no way through the water
[单项选择]（）, which consisted of seven short blasts and one prolonged blast, all passengers have to go to their assembly station.
A. When the distress alert is sounded
B. When the emergency equipment is switching on
C. When the general emergency alarm is sounded
D. When the distress broadcast is sounded
[单项选择]If you hear more than six short blasts and one long blast of the whistle supplemented by the same signal on the general alarm，you should（）.
A. start the fire pump
B. go to your man overboard station
C. go to your lifeboat station
D. stand by for collision
[单项选择]Approaching an anchorage in fog，you hear one short，one prolonged，and one short blast in that sequence on a ship’s whistle． This indicates（）.
A. A vessel towed
B. A vessel not under command and unable to maneuver
C. A vessel anchored giving warning of her position
D. A vessel stopped dead in the water
[单项选择]Which one of the following is the safety signal?（）.
A. SSS
B. TTT
C. XXX
D. FFF
[单项选择]One of the signals，other than a distress signal，that can be used by a rescue boat to attract attention is a/an（）.
A. red star shell
B. searchlight
C. burning barrel
D. orange smoke signal
[单项选择]Which signal is recognized as a distress signal?（）.
A. Directing the beam of a searchlight at another vessel
B. A smoke signal giving off orange colored smoke
C. A whistle signal of one prolonged and three short blasts
D. International Code Signal PAN spoken over the radiotelephone
[名词解释] 迟发延续反应（delayed prolonged response）
