更多"The ARPA may swap targets when auto"的相关试题:
[单项选择]The ARPA may swap targets when automatically tracking if two targets（）
A. are tracked on reciprocal bearings
B. are tracked at the same range
C. are tracked on the same bearing
D. pass closely to each other
[单项选择]When may the automatic identification system (AIS) be switched off? （）
A. At anytime as long as it is properly logged
B. At the Master's professional judgment
C. Only when the vessel is at anchor or in port
D. Under no circumstance
[单项选择]A passenger vessel is underway. When may passengers visit the pilothouse? （）
A. Passengers are excluded from the pilothouse while underway
B. Passengers are permitted in the pilothouse during daylight hours only
C. Passengers are permitted to visit the pilothouse when authorized by the Master and officer of the watch
D. Passengers are permitted in the pilothouse when they are escorted by a ship's officer
[单项选择]For GMDSS，when may a compulsory vessel not be allowed to leave port?（）
A. When the vessel is in an overloaded condition
B. When the vessel has arranged for both duplication of equipment AND shore-based maintenance
C. When the vessel has replaced a required piece of GMDSS-related equipment but its performance has not been verified or logged
D. When the vessel is carrying only two licensed GMDSS Radio Operators and is capable of performing all required functions
[单项选择]On a ship，when may a work vest be substituted for a required life preserver?（）
A. To replace a damaged life preserver
B. For use during fire drills
C. For use during boat drills
D. At no time
[单项选择]On an OSV，when may a work vest be substituted for a required life jacket?（）
A. To replace a damaged life jacket
B. For use during fire drills
C. For use during boat drills
D. At no time
[单项选择]When using the ARPA in heavy rain，which action should you take? （）
A. Increase the radar gain to pick up weak echoes through the rain
B. Increase the STC setting to reduce close-in spurious signals
C. Navigate as though the effective range of the radar has been reduced
D. Increase the range of the inner and outer guard rings
[单项选择]When using an ARPA，what should you consider in order to evaluate the information displayed?（）
A. The target vessel's generated course and speed are based solely on radar inputs
B. Navigational constraints may require a target vessel to change course
C. The trial maneuver feature will automatically determine a course that will clear all targets
D. You cannot determine if a small target has been lost due to sea return
[单项选择]When carrying out a parallel track search pattern，the course of the search units should normally be which of the following?（）
A. In the same direction as the anticipated drift
B. In the opposite direction of the anticipated drift
C. Perpendicular to the line of anticipated drift
D. Downwind
[单项选择]When required to work where there may be explosive gases, you should use tools which are （）
A. approved by the Coast Guard
B. high carbon steel
C. fixed with a ferrous cover
D. nonsparking
[单项选择]Which of the following problems may occur when using fuel oil with a high sulphur content?（）
A. Injection lag
B. Lube oil dilution
C. Pre-ignition
D. Corrosion
[单项选择]Higher compensation may be claimed only when，with the consent of the carrier，the value of the goods declared by the shipper which（）the limits laid down in this clause has been stated in this bill of lading.
A. increases
B. exceeds
C. decreases
D. reduces
[单项选择]What material may be substituted for zinc when making a poured metal socket ending to a wire rope（）.
A. Lead
B. Babbitt
C. Solder
D. Nothing
[单项选择]A centrifugal pump may fail to deliver water when first started if the （）.
A. water seal pipe is plugged
B. pump is not primed
C. seal ring is improperly located
D. impeller is flooded
[单项选择]When the order given by bridge may have bad results, the duty engineer should（）
A. inform the captain for a further consideration, then perform it
B. inform the captain, and not perform it
C. stop the M/E immediately, and then inform the chief engineer
D. stop the M/E immediately, and then inform the captain
[单项选择]A tug may be in danger of tripping when（）.
A. towed sideways by an overwhelming force on the towline
B. her tow moves parallel to and forward on either side of the tug
C. the tow is no longer directly astern but moves up on her quarter
D. All of the above
[单项选择]Dacron sails，when not in use，may be damaged if（）.
A. left in the sunlight
B. stowed wet
C. washed with soap
D. folded frequently
