[单项选择]Friction developing between the moving parts of a governor, governor linkage and control valve will cause the governor to （）.
A. react with insufficient speed droop
B. fail to react to small speed changes
C. have excessive sensitivity to small speed changes
D. remain in the neutral position

[单项选择]The main moving parts of a diesel engine consist of the （） and the pistons.
A. bedplate, connecting rods
B. crankshaft, the connecting rods
C. frames, crossheads
D. crankshaft, the cylinder

[单项选择]The guard, fencing or shielding for moving parts or machinery can be removed for repair only when the machinery it belongs to（）
A. stays at rest
B. is working stably
C. is worn out
D. is in good operation

[单项选择]The amount of fluid friction or internal friction inherent in a mineral lubricating oil is reflected as a measure of its （）.
A. specific gravity
B. viscosity
C. S E number
D. hydrolytic stability

[名词解释]摩擦成本法（Friction cost approach）

[单项选择]What will NOT increase friction of a liquid flowing in a pipe and cause a loss of suction head?（）.
A. Bends in the piping
B. Slowing the pumping rate
C. Pipeline valves
D. Backing rings for pipe welds

[名词解释]移动闭塞moving block

[单项选择]Neglecting friction, you desire to life a 300 kgs weight with a stress on the hauling part of 100kgs.Which of the following tackles would you use ?（）.
A. Gun tackle
B. Luff tackle
C. Toe-fold tackle
D. Double-luff tackle

[单项选择]Friction, engine wear and oil consumption in a diesel engine are directly related to the （）.
A. acidity of the oil
B. pour point of the oil
C. flash point of the oil
D. viscosity of the oil

[单项选择]Energy loses （）friction occurs in every engine.
A. because
B. thanks to
C. dues to
D. owing to

[单项选择]Any friction fit, tightness or adhesion of the part of any load being lifted should be broken by wedge or tapping and not by increasing the load on the applianceAccording to this sentence, （）
A. the lifting appliance can always lift the freight within its rated load
B. attention should be paid in order not to break the wedge when lifting cargo
C. sometimes the lifting work needs other assistance other than the lifting appliance
D. lifting work should be done with every part fit, tightness or adhesion

[单项选择]Neglecting friction，you desire to lift a 300 kgs weight with a stress on the hauling part of 100 kgs.Which of the following tackles would you use?（）.
A. Gun tackle
B. Luff tackle
C. Two-fold tackle
D. Double-luff tackle

[单项选择]The pipe friction and the resistance will （） as a result of an increase in the amount of fluid flowing through the system.
A. reduce
B. rise
C. raise
D. fall

[单项选择]（） the bodies are, （） the friction will be.
A. The smoother；the greater
B. Smoother；less
C. The rougher；the greater
D. rougher；greater

[单项选择] You are developing a Windows Presentation Foundation (WPF) application. You configure PresentationTraceSource to track errors in a bound TextBox control in the application. You need to choose the window that the Trace information is sent to Which Visual Studio window should you select ?（）
A.  Autos
B.  Immediate
C.  Locals
D.  Output

[多项选择]You are developing a Windows Communication Foundation (WCF) service. You write a method named Submit that accepts messages of the type System.ServiceModel.Channels.Message. You need to process the body of the incoming messages multiple times in the method. Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)（）
A. Use the GetBody method of the Message class to read the content of the messages.
B. Use the CreateBufferedCopy method of the Message class to load the messages into memory.
C. Use the WriteBodyContents method of the BodyWriter class to make a copy of the messages.
D. Use the CreateMessage method of the MessageBuffer class to make a copy of the messages.