If in doubt as to the true water level when a boiler is being oil-fired, you should ().
A、take no measures
B、extinguish the fire as soon as possible
C、feed water to the boiler
D、open the blow down valve
A、take no measures
B、extinguish the fire as soon as possible
C、feed water to the boiler
D、open the blow down valve
A、notify the Captain as soon as possible B、seek clarification from the pilot C、take action by his own judgment D、cease the duty of pilot's at once
A、notify the captain as soon as possible B、seek clarification from the pilot C、take action by his own judgment D、cease the duty of pilot's at once
A、in any emergency or if in any doubt as to what decision or measures to take B、in the event of any impending action in machinery spaces that may cause reduction in ship’s speed C、when isolating and bypassing machinery to be worked on D、co-operating with any engineer in charge of maintenance work
A、notify the master immediately B、take whatever action is necessary before the master arrives C、take necessary actions at his/her discretion D、seek clarification from the pilot
A、A.If the quadrantal spheres are out as far as possible replace them with smaller spheres B、B.If the quadrantal spheres are in as far as possible remove one of the spheres C、C.If the quadrantal spheres are in as far as possible replace them with smaller spheres D、D.If the quadrantal spheres are out as far as possible,move the quadrantal spheres in
A、I am in doubt as to your actions B、My engines are full speed astern C、I desire to overtake you D、I am operating astern propulsion