NTSD功能测试时，速度由（）参数决定。
There is a close link between a rising_____of unemployment and a rising suicide_____.A.ratio; ratioB.speed;speedC.rate;rateD.tendency;tendency
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In an AC.synchronous motor electric propulsion plant,propeller speed is controlled by()A.prime mover speedB.number of energized main motor polesC.propulsion generator field strengthD.electric coupling field strength
If it becomes necessary for a stand-on vessel to take action to avoid collision，she shall NOT，if possible，().A.Decrease speedB.Increase speedC.Turn to port for a vessel on her own port sideD.Turn to starboard for a vessel on her own port side
Where one of two vessels is to keep out of the way the other________.A.shall not keep her course but shall keep her speedB.shall not keep her course and speedC.shall keep her course but change her speedD.shall keep her course and speed
MV CASABIANCA ordered the MV RADIANT MED to wait for her and the MV RADIANT MED acknowledged the message stating that speed was being reduced as far as possible. This sentence says that ________ ．A.MV RADIANT MED was told by MV CASABIANCA to reduce her speedB.MV CASABIANCA was told by MV RADIANT MED to reduce her speedC.MV CASABIANCA was reducing her speed but she could not wait for MV RADIANT MEDD.MV RADIANT MED was reducing her speed but she could not wait for MV CASABIANCA
An over-speed safety device is usually fitted to a generator engine for ___ in the event of over-speed.A.stabilizing the ship speedB.increasing the fuel pump settingC.braking the crankshaftD.cutting power off the engine
THE SPEED OF A VESSEL ADJUSTED TO THAT OF A PILOT BOAT AT WHICH THE PILOT CAN SAFELY EMBARK is ______.A.Ground speedB.Boarding speedC.Relative speedD.Speed of the vessel
