A.Subject to unforeseen delays
B.Capacity
C.Reliance on rail freight operator’s timetable
D.Suppliers/customers are not always located near a rail freight depot anddelivery to/from the depot can be costly and time consuming.
[多选题]Which of the following may be the disadvantages of rail transport?( )A.Subj
[多选题]Which of the following may be the disadvantages of road transport?( )A.Tran
[多选题]Which of the following may be the disadvantages of road transport?( )A.Tran
[多选题]Rail transport plays an important role in the domestic economy of acountry.
[多选题]Rail transport plays an important role in the domestic economy of acountry.
[单选题]Which of the following may cause that an engine doesnt run on starting air?()A . too low starting air pressureB . main start valve closedC . neither A nor BD . A and B
[单选题]The disadvantages of rail compared with motor carrier are()A . CostB . SpeedC . Lost and damage ratiosD . Transit time and frequency of service
[单选题]Which of the following firing order may be used for a 6-cylinder engine? ( )A.1-2-3-4-5-6B.1-2-3-6-5-4C.1-5-3-6-2-4D.1-3-4-5-6-2
[单选题]Which of the following problems may occur if the opening pressure of a fuel injection nozzle is greater than specified by the engine manufacturer?()A . The amount of fuel injected will be increasedB . The start of injection will be retardedC . The no
[单选题]Which of the following conditions may need to be reduced when operating a large, low speed, main propulsion, diesel engine at low loads?()A . Injection pressuresB . Control air supply pressureC . Cooling water flow through after-coolersD . Lube oil t