【单选题】comparative/ kəm’pærətiv/
【单选题】conservative/ kən’sə:vətiv/
【单选题】alternative / ɔ:l’tə:nətiv/
【简答题】[ ɔ :l ˈ t ə :n ə tiv]
【单选题】The most accurate method of determining gyrocompass error while underway is by ______.
A.
Comparing the gyro azimuth of a celestial body with the computed azimuth of the body
B.
Comparing the gyro heading with the magnetic compass heading
C.
Determining from the chart the course made good between celestial fixes
D.
It cannot be determined accurately at sea due to drift of unknown currents
【单选题】While underway and towing an unmanned tank barge you are required to ______.
A.
maintain a strict watch on the barge from the towing vessel
B.
fly a red flag from the towing vessel
C.
open the tops of all empty tanks on the barge
D.
take hourly soundings of any loaded tanks on the barge
【多选题】切削加工顺序安排时应考虑的几个原则有( )。
【单选题】While underway, which of the following would be the FIRST step in reversing a direct reversing large, low-speed, main propulsion, diesel engine?
A.
Manually trip the over-speed device
B.
Interrupt the fuel flow to the engine
C.
Disengage the safety interlock
D.
Slide the camshaft to the neutral position