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单选题
WL600声学水位计按钮“DEPTH”为（）选择。
A
发报时间
B
电压指示
C
温度量程
D
深度量程
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更多 “单选题WL600声学水位计按钮“DEPTH”为（）选择。A 发报时间B 电压指示C 温度量程D 深度量程” 相关考题
考题
The height of tide is the ______.A.depth of water at a specific time due to tidal effectB.difference between the depth of the water and the area's tidal datumC.difference between the depth of the water and the high water tidal levelD.difference between the depth of the water at high tide and the depth of the water at low tide
考题
All echo-sounders can measure the ______．A.Actual depth of waterB.Actual depth of water below keelC.Average depth from waterline to hard bottomD.Average depth of water to soft bottom
考题
A channel is started as having a controlling depth of 38 feet. Which statement is TRUE?_____A.At least 80% of the channel is cleared to the charted depth.B.At least 50% of the channel is cleared to the charted depth.C.100% of the channel depth is clear to 38 feet.D.The sides of the channel conform to at least 50% of the controlling depth.
考题
Which statement is FALSE concerning the interleave depth value？（）A、A higher interleave depth provides more protection from burst of noise on the HFC networkB、Higher interleave depth increase downstream latencyC、Lower interleave depth cause some packet loss on typical HFC networksD、None ofthe above
考题
“椭圆选框工具”要如何绘制黑色圆形（）A、按住Shift建立圆形选区，右键单击，选择填充按钮，在“使用”下拉菜单中选择颜色按钮，选择黑色B、设置前景色为黑色，按住Shift建立圆形选区，右键单击，选择填充按钮，在“使用”下拉菜单中选择前景色C、设置背景色为黑色，按住Shift建立圆形选区，右键单击，选择填充按钮，在“使用”下拉菜单中选择背景色D、按住Shift建立圆形选区，右键单击，选择填充按钮，在“使用”下拉菜单中选择黑色
考题
单选题When anchoring,it is a common rule of thumb to use a length of chain（）.A
five to seven times the depth of waterB
seven to ten times the depth of waterC
twice the depth of waterD
twice the depth of water plus the range of tide
考题
单选题In moderate wind and current what should be the length of chain with a single anchor?（）A
5 times the depth of the water in good holding groundB
10 times the depth of the water in shallow waterC
2 times the depth of the water in poor holding groundD
8 times the depth of the water in deep water
考题
单选题The height of tide is the （）.A
depth of water at a specific time due to tidal effectB
difference between the depth of the water and the area's tidal datumC
difference between the depth of the water and the high water tidal levelD
difference between the depth of the water at high tide and the depth of the water at low tide
考题
单选题Which statement is FALSE concerning the interleave depth value？（）A
A higher interleave depth provides more protection from burst of noise on the HFC networkB
Higher interleave depth increase downstream latencyC
Lower interleave depth cause some packet loss on typical HFC networksD
None ofthe above
考题
单选题In bad weather，what length of chain should be used with a single anchor? （）A
3 times the depth of waterB
6 times the depth of waterC
10 times the depth of waterD
15 times the depth of water
考题
单选题All echo-sounders can measure the（）.A
actual depth of waterB
actual depth of water below keelC
average depth from waterline to hard bottomD
average depth of water to soft bottom
考题
单选题When anchoring a vessel under normal conditions，which scope of chain is recommended? （）A
Four times the depth of waterB
Two and one-half times the depth of waterC
Five to seven times the depth of waterD
Fifteen times the depth of water
考题
单选题（）地下水位计应注意检查耐压密封性能。A
测绳B
气介声学C
浮子式D
压力式
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