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【单选题】
某船船速12kn,计划航迹向090°,航区内受NE风6级(α取4°),NE流4kn的影响,考虑上述情况后应采用的真航向和推算航速是 。A.
090°,9.4kn
B.
100°,14.5kn
C.
080°,13.3kn
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举一反三
【单选题】Ammeters and voltmeters used in sinusoidal AC power systems indicate which of the following values of the waveforms measured?
A.
Peak value
B.
Root-mean-square value
C.
Average value
D.
Maximum value
【单选题】External shunts are sometimes used with ammeters to _______.
A.
increase meter sensitivity
B.
permit shunts with larger resistances to be utilized
C.
prevent damage to the meter movement from heat generated by the shunt
D.
enable the construction of a compact meter with a virtually unlimited range
【单选题】Ammeters and voltmeters used in sinusoidal AC power systems indicate which of the following values of the waveforms measured?
A.
Peak value
B.
Boot-mean-square value
C.
Average value
D.
Maximum value
【单选题】We have to renew the ammeters and voltmeters. 02010267
A.
We must replace the ammeters and voltmeters.
B.
The ammeters and voltmeters have been rectified.
C.
We don't have to renew the ammeters and voltmeters.
D.
Either the ammeters or the voltmeters need to be renewed.
【简答题】期货公司或者其分支机构有《中华人民共和国行政许可证》第七十条规定的情形或者下列（ ）情形的，国务院期货监督管理机构应当依法办理期货业务许可证注销手续。
【单选题】Ammeters and voltmeters used in sinusoidal AC power systems including which of the following values of the waveforms measured?
A.
Peak value
B.
Root mean square value
C.
average value
D.
Maximum value
【单选题】Ammeters must have a resistance, while voltmeters must have a resistance.
A.
high...low
B.
low...high
C.
low...low
D.
high...high
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