Before a marine diesel engine is started the cylinders and pistons must be （）.

[单选题]The diesel engine must be started before it can run by it self For this purpose （） has to be used.A . a starting systemB . the starting airC . a starting operationD . A, B and C

[单选题]Turbocharging of marine diesel engine is achieved by two distinct methods, （） termed the constant pressure and the pulse system.A . respectableB . respectfulC . respectiveD . respectively

[单选题]The marine diesel engine is a type of diesel engine used on ships The （） of its operation is not very difficult to understand.A . principleB . principalC . causeD . case

[单选题]Before starting a diesel engine that has an engine driven lube oil pump, the engineer should （）.A . open the bypass lineB . cut in the lube oil coolerC . pressurize the lube oil systemD . top off the expansion tank

[单选题]D．iesel engines are started by supplying into the cylinders in the appropriate sequence for the required direction.A．cooling waterB．compressing airC．compressed airD．cylinder oil

[单选题]Diesel engines are started by supplying （） into the cylinders in the appropriate sequence for the required direction.A . cooling waterB . compressing airC . compressed airD . cylinder oil

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

[单选题]D．iesel engines are started by supplying_____into the cylinders in the appropriate sequence for the required direction.A．cooling waterB．compressing airC．compressed airD．cylinder oil

[单选题]After an engine is started you should（）.A . increase engine speed to insure adequate flow of oil to all parts of the engineB . pay no attention unless there are unusual noises from the engineC . check operating pressures and temperatures，and check fo

[单选题]Large marine diesel engines of crosshead construction generally have two systems of lubrication: a total loss system feeding the （） and a recirculation system lubricating the running gear and cooling the piston.A . cylinder liners and piston ringsB .