海船船员考试
单选题Pitting in the area close to the pitch line and on the same end of each gear tooth of a reduction gear unit would be caused by （）A corrosion on the gearsB excessive gear speedC dirt in the oilD misalignment of the gears
题目
corrosion on the gears
excessive gear speed
dirt in the oil
misalignment of the gears
相似问题和答案
第1题：
The ARPA may swap targets when automatically tracking if two targets ______.
A.are tracked on reciprocal bearings
B.are tracked at the same range
C.are tracked on the same bearing
D.pass close together
ARPA可能调换目标当追踪到两个物标接近一起时。
第2题：
Refer to the exhibit. A network administrator wants to reduce the number of OSPF routes advertised from Area 1 into Area 2. As the router configuration specialist, what two things would you do to accomplish this goal?（）
A. Enter the configuration on router B1.
B. Enter the configuration on router B4.
C. On the same router, enter the Summary - address 10.10.1.0 255.255.255.128 subcommand.
D. On the same router, enter the Area 1 range 10.10.1.0 255.255.255.128 subcommand.
E. On the same ro uter, enter the Area 2 range 10.10.1.0 255.255.255.128 subcommand.
第3题：
In small companies, project managers and line managers are:
A . Never the same person
B . Always the same person
C . Sometimes the same person
D Always in disagreement with each other
E Forced to act as their own sponsors
第4题：
If you are bunkering and you close off one tank in the line of tanks being filled，the rate of flow to other open tanks on the same line will ______．
A.increase
B.decrease
C.stop
D.remain constant
第5题：
Tensile stress is a result of two forces acting in ______.
A.opposite directions on the same line，tending to pull the material apart
B.opposite directions on the same line，tending to compress the object
C.opposite directions along parallel lines
D.the same direction along parallel lines
第6题：
Compared to a constant pitch propeller, a controllable pitch propeller
A.more efficiently uses available engine power
B.operates at a lower efficiency at a fixed speed
C.produces the same torque at lower engine power
D.develops its rated power at a lower speed
第7题：
The revision date of a chart is printed on which area of the chart?
A.Top center
B.Lower-left corner
C.Part of the chart title
D.Any clear area around the neat line
第8题：
61 In small companies, project managers and line managers are:
A. Never the same person
B. Always the same person
C. Sometimes the same person
D. Always in disagreement with each other
E. Forced to act as their own sponsors
第9题：
Which statement is TRUE concerning protection of double bottom tanks against excessive pressure?
A.Each vent for the tank must be equal to the area of the tank filling line
B.The tanks must be protected by overflows
C.The total area of the vents or the overflow shall be at least equal to the area of the fill line
D.There must be twice as much vent area as the area of the fill line
第10题：
If two mooring lines are to be placed on the same bollard，which method is BEST?______.
A.Place the eye from the forward line on the bollard and then place the eye from the second line directly over the first
B.It makes no difference how the lines are placed
C.Place the eye from either line on the bollard，and then bring the eye of the other line up through the eye of the first，and place it on the bollard
D.Place both eyes on the bollard，in any manner，but lead both lines to the same winch head on the vessel and secure them on the winch
假如两个系泊缆绳被套在同一个缆桩上面哪种方法最好？第一支缆绳系妥后，将第二支的眼环穿过第一个眼环后在系到缆桩上面。