Before sailing，mariners on duty shall

1、Before（）,a station shall take precauti

Before（）,a station shall take precautions to ensure that its emission will not interfere with transmission already in progress.AtransmitBto transmittingCtransmittingDin transmitting

2、Duties shall be so organized by the ch

Duties shall be so organized by the chief engineer officer that the first watch at the commencement of a voyage and the subsequent relieving watches are （） and otherwise fit for duty.Awell trainedBin good luckCin good healthDsufficiently rested

3、An anchored vessel on pilotage duty mu

An anchored vessel on pilotage duty must show which light(s) at night? （）AA sternlight onlyBAnchor lights onlyCA white light over a red light onlyDA white light over a red light and anchor light

4、Before a marine diesel engine is start

Before a marine diesel engine is started the cylinders and pistons must be （）.Acooled to appropriate temperatureBwarmed up gradually to appropriate temperatureCopened up and renewedDground and polished

5、A pilot vessel on pilotage duty shall

A pilot vessel on pilotage duty shall show identity lights （）.Aat any time while underwayBwhile at anchorCwhile alongside a vesselDAll of the above

6、A sailing vessel shall not impede the

A sailing vessel shall not impede the safe passage of a（）.Apower-driven vessel following a traffic laneBpilot vessel enroute to a pilot stationClaw enforcement vesselDAll of the above