moisture in the compressed air supply
excessive dryness in the compressed air supply
pressure surging in the compressed air receiver
insufficient lubrication of the system components
第1题：
What did scientists learn about earthquakes at the Rocky Mountain Arsenal?
A) They occur at about 4,000 metres below ground level.
B) The injection of water into earthquake faults prevents earthquakes from occurring.
C) They are usually caused by the oil in the faults.
D) Harmful earthquakes earl be possibly prevented by causing small, harmless earthquakes.
第2题：
Restrictions occurring in the small orifices(孔) of pneumatic control system components can be caused by ______.
A.moisture in the compressed air supply
B.excessive dryness in the compressed air supply
C.pressure surging in the compressed air receiver
D.insufficient lubrication of the system components
第3题：
A.German
B.Chinese
C.Greek
D.Latin
第4题：
在Hibernate中，关于Criteria运算方法说法错误的是（）。
第5题：
The pneumatic containers which store bulk dry mud additives and cement on a ship are called ______．
A.Mud hoppers
B.Bulk bins
C.P-tanks
D.Mud tanks
第6题：
In the event of a small bunker oil spill on deck occurring while bunkering, you should ____.
A.wash down the area immediately with a fire hose
B.wash down the area with kerosene
C.cover the area with absorbent material
D.cover the area with foam
第7题：
Which device is designed to automatically hold the load if power should fail to an electric winch?
A.Pneumatic brake
B.Electromagnetic brake
C.Hand brake
D.Motor controller
第8题：
On a vessel, a CO2 extinguisher is checked by ______.
A.reading the gage pressure
B.weighing the extinguisher
C.discharging a small amount of CO2
D.seeing if the seal has been broken
第9题：
第10题：
气流干燥（Pneumatic dryer）