________is supplied with electricity by main switchboard directly not through sub-board on board

A．Deck machinery

B．Little power load

C．Some important load machinery

D．Stationary submersible pump

[单选题]Usually, emergency electricity supplies to_____on boardA．Cargo winchB．WindlassC．Steering gearD．Main air compressor

[单选题]Usually, emergency electricity supplies to_______on boardA．Cargo winchB．WindlassC．Steering gearD．Main air compressor

[单选题]F．or _______the power is supplied by main switchboard directly not through sub-boardA．saving network costB．improving the reliability of supplying power to important loadC．preventing sequence reversingD．increasing the power Factor of important load

[单选题]The compressed air is supplied by （） to the air reservoirs.A . compressorsB . forced fansC . ventilatorsD . generator

[单选题]Fuel is not supplied to the corresponding cylinders due to （）.A . a failure of the motorB . a failure of lubricatorC . a failure of cylinderD . a failure of fuel pum

[单选题]（） is (are) not power supplied by main switchboard directly.A . Steering gear and windlassB . Navigation light and radio power panelC . Navigation device power boxD . Daily fresh water pum

[单选题]Lubricating oil is supplied to the crank-pin bearings in a marine diesel engine by （）.A . internal crankshaft passagesB . immersion in oilC . splash lubricationD . injection lubricatio

[单选题]The engine is started with （） supplied from air receivers.A . pressure oilB . pressure waterC . compressed airD . cooling water

[单选题]Oil is supplied to the cylinder wall and （） by means of mechanical lubricators.A . the cylinder coverB . the piston ringsC . the piston crownD . the piston skirt

[单选题]Which system should be supplied to obtain the best efficiency and lowest emissions?A．Lean combustion principleB．Fuel oil systemC．Electrical control systemD．Electronic control system