Subelement B – Communications Procedures Flashcards
1-7B1 What traffic management service is operated by the U.S. Coast Guard in certain designated water areas to prevent ship collisions, groundings and environmental harm?
A. Water Safety Management Bureau (WSMB).
B. Vessel Traffic Service (VTS).
C. Ship Movement and Safety Agency (SMSA).
D. Interdepartmental Harbor and Port Patrol (IHPP).
B
1-7B2 What is a bridge-to-bridge station?
A. An internal communications system linking the wheel house with the ship’s primary radio operating position and other integral ship control points.
B. An inland waterways and coastal radio station serving ship stations operating within the United States.
C. A portable ship station necessary to eliminate frequent application to operate a ship station on board different vessels.
D. A VHF radio station located on a ship’s navigational bridge or main control station that is used only for navigational communications.
D
1-7B3 When may a bridge-to-bridge transmission be more than 1 watt?
A. When broadcasting a distress message and rounding a bend in a river or traveling in a blind spot.
B. When broadcasting a distress message.
C. When rounding a bend in a river or traveling in a blind spot.
D. When calling the Coast Guard.
A
1-7B4 When is it legal to transmit high power on Channel 13?
A. Failure of vessel being called to respond.
B. In a blind situation such as rounding a bend in a river.
C. During an emergency.
D. All of these.
D
1-7B5 A ship station using VHF bridge-to-bridge Channel 13:
A. May be identified by the name of the ship in lieu of call sign.
B. May be identified by call sign and country of origin.
C. Must be identified by call sign and name of vessel.
D. Does not need to identify itself within 100 miles from shore.
A
1-7B6 The primary purpose of bridge-to-bridge communications is:
A. Search and rescue emergency calls only.
B. All short-range transmission aboard ship.
C. Navigational communications.
D. Transmission of Captain’s orders from the bridge.
C
1-8B1 What is the best way for a radio operator to minimize or prevent interference to other stations?
A. By using an omni-directional antenna pointed away from other stations.
B. Reducing power to a level that will not affect other on-frequency communications.
C. Determine that a frequency is not in use by monitoring the frequency before transmitting.
D. By changing frequency when notified that a radiocommunication causes interference.
C
1-8B2 Under what circumstances may a coast station using telephony transmit a general call to a group of vessels?
A. Under no circumstances.
B. When announcing or preceding the transmission of Distress, Urgency, Safety or other important messages.
C. When the vessels are located in international waters beyond 12 miles.
D. When identical traffic is destined for multiple mobile stations within range.
B
1-8B3 Who determines when a ship station may transmit routine traffic destined for a coast or government station in the maritime mobile service?
A. Shipboard radio officers may transmit traffic when it will not interfere with ongoing radiocommunications.
B. The order and time of transmission and permissible type of message traffic is decided by the licensed on-duty operator.
C. Ship stations must comply with instructions given by the coast or government station.
D. The precedence of conventional radiocommunications is determined by FCC and international regulation.
C
1-8B4 What is required of a ship station which has established initial contact with another station on 2182 kHz or Ch-16?
A. The stations must change to an authorized working frequency for the transmission of messages.
B. The stations must check the radio channel for Distress, Urgency and Safety calls at least once every ten minutes.
C. Radiated power must be minimized so as not to interfere with other stations needing to use the channel.
D. To expedite safety communications, the vessels must observe radio silence for two out of every fifteen minutes.
A
1-8B5 How does a coast station notify a ship that it has a message for the ship?
A. By making a directed transmission on 2182 kHz or 156.800 MHz.
B. The coast station changes to the vessel’s known working frequency.
C. By establishing communications using the eight-digit maritime mobile service identification.
D. The coast station may transmit, at intervals, lists of call signs in alphabetical order for which they have traffic.
D
1-8B6 What is the priority of communications?
A. Safety, Distress, Urgency and radio direction-finding.
B. Distress, Urgency and Safety.
C. Distress, Safety, radio direction-finding, search and rescue.
D. Radio direction-finding, Distress and Safety.
B
1-9B1 Under what circumstances may a ship or aircraft station interfere with a public coast station?
A. In cases of distress.
B. Under no circumstances during on-going radiocommunications.
C. During periods of government priority traffic handling.
D. When it is necessary to transmit a message concerning the safety of navigation or important meteorological warnings.
A
1-9B2 Ordinarily, how often would a station using a telephony emission identify?
A. At least every 10 minutes.
B. At the beginning and end of each transmission and at 15-minute intervals.
C. At 15-minute intervals, unless public correspondence is in progress.
D. At 20-minute intervals.
B
1-9B3 When using a SSB station on 2182 kHz or VHF-FM on channel 16:
A. Preliminary call must not exceed 30 seconds.
B. If contact is not made, you must wait at least 2 minutes before repeating the call.
C. Once contact is established, you must switch to a working frequency.
D. All of these.
D