单项选择题

While a ship with twin screw is making a turn, in order to prevent overload, the duty engineer should （）

A.reduce the fuel feeding of main engine of inner propeller
B.reduce the fuel feeding of main engine of outer propeller
C.firstly reduce the fuel of main engine of inner propeller, then reduce the fuel feeding of engine of outer propeller
D.reduce fuel feeding of two engines at the same time

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单项选择题

If anything abnormal be found on the load change of main engine when the ship is entering in shallow waterway, before taking measuring the engineer on duty should （）

A.stop main engine immediately
B.ask the captain and the chief engineer’s permission for stopping the engine
C.initiatively inquire the bridge for the situation
D.stop engine and inform bridge

单项选择题

Generally, runaway means such situation when the speed main engine exceeds the rating speed by its （）

A.10%
B.15%
C.20%
D.5%

单项选择题

When ship navigating in rough sea, the first measure taken by the chief engineer to prevent the overload should be（）

A.cleaning fuel oil, lubricating oil and seawater filter
B.reducing fuel feeding of the main engine appropriately or reducing the pitch angle of propeller
C.using low sea chest
D.closing the skylight and the ventilation opening, which doesn’t affect the normal work of equipments