rapid reduction of ship’s friction force
shaft system over mechanical load
sharp growth of the torque of diesel engine
propeller torque change along J=0 curve
第1题：
微速后退。
A.Dead slow astern.
B.Slow astern.
C.Half astern.
D.Slow ahead
第2题：
The order“______” means “Maximum maneuvering engine revolution for ahead propulsion.”
A.Full Ahead
B.Half Ahead
C.Full Astern
D.Half Astern
第3题：
According to Paragraph 2, why may a person suddenly forget who has called?
A. He may leave his prefrontal cortex temporarily damaged.
B. He is probably interrupted by another task.
C. He is probably not very familiar with the person he has called.
D. He may need a rest between dialing and speaking.
第4题：
简要介绍Graph图表——WaveformGraph的使用。
第5题：
A tug is best positioned for towing and maneuvering on rivers and other restricted waters where wave action is limited when ______.
A.directly astern and pushing the tow
B.towing on a hawser
C.towing alongside and parallel to the vessel it is towing
D.towing on the hip
第6题：
紧急后退三。
A.Full astern！
B.Double full astern！
C.Emergency full astern！
D.Emergency three astern！
第7题：
A large vessel is equipped with a controllable pitch propeller. Which statement is TRUE?
A.When dead in the water，it is often difficult to find the neutral position and slight headway or sternway may result
B.When going directly from full ahead to full astern，there is complete steering control
C.When the vessel has headway and the propeller is in neutral，there is no effect on rudder control
D.When maneuvering in port，full ahead or astern power can usually be obtained without changing shaft RPM
第8题：
In the following statements about graph operations，which one is NOT correct?
A．Finding critical path is an operation on directed graph
B．Finding critical path is an operation on undirected graph
C．Spanning tree of a graph may not be unique
D．Minimum spanning tree of a graph may not be unique
第9题：
LabVIEW使用了图表（Chart）和图形（Graph）两个不同的概念，其概念的差别在于。Chart显示（），Graph是（）。
第10题：
大台后面第一个就是他的房间。（）