Engine operating conditions may be indicated by the color of the exhaust smoke Black smok

How would the exhaust of a properly operating diesel engine appear ________．

A.Light blue haze

B.Light brown haze

C.Light gray haze

D.Perfectly clear

A smoking exhaust from an operating diesel engine could be caused by().

A.low sulfur content in the fuel

B.a loose injector inlet connection

C.late fuel injection

D.high injection pressure

A、1 hour at normal cruise speed in still air with both engines operating

B、1 hour at normal cruise speed in still air with one engine operating

C、2 hours at normal cruise speed in still air with one engine operating

A.An air receiver

B.An operating valve

C.An automatic valve

D.An air distributor

A.warm up the exhaust blower motor

B.provide a proper supply of fresh air for the engine（s）

C.see the system is in good operating condition

D.insure at least one complete change of air in the compartments concerned

如果高层配置了TDD模式的子帧打包操作，子帧打包操作只在『____』上执行。(If the high-level configura the operation of TDD mode sub-frame. package, operating of the sub-frame. package only run on『____』.)

A.increase power output

B.decrease lube oil viscosity

C.eliminate fuel knock

D.cause sulfuric acid formation

A.Noise coming from that air starting valve

B.Continuous operation of the starting air compressor

C.Zero air pressure in the air starting system

D.Overheated starting air pipe to the cylinder head

A.Activating the MySQL Enterprise thread pool plugin

B.Relocating your data and log files to separate storage devices

C.Disconnecting idle localhost client sessions

D.Implementing storage engine data compression options

A.completely loose its share of the load causing the auxiliary engine to speed up.

B.overload due to reduced voltage output and increased current

C.continue to share the active load(kw)but have high very reactive load

D.try to take all the load and so trip the main circuit breaker