更多"When current and voltage reach maxi"的相关试题:
[单项选择]When voltage and current developed in an AC circuit reach their peak values at the same time, the power factor is （）
A. lagging
B. leading
C. maximum
D. minimum
[单项选择]With a purely （） load the voltage and current are in phase, giving a power factor of one.
A. inductive
B. resistance
C. combined
D. capacitate
[单项选择]Voltage will always lead current in a/an （）
A. capacitive circuit
B. inductive circuit
C. magnetic circuit
D. resistive circuit
[单项选择]With a （） load the voltage and current are in phase.
A. pure resistance
B. capacitive
C. inductive
D. None of the above
[单项选择]When winds of force reach 10-11 in Beaufort Scale，usually we call such winds as（）.
A. Hurricane
B. Breeze
C. Storm
D. Gale
[单项选择]Deviation which is maximum on intercardinal compass headings may be removed by the（）.
A. Flinders bar
B. transverse magnets
C. fore-and-aft magnets
D. soft iron spheres on the sides of the compass
[单项选择]The difference between measured and desired values is called （）.
A. make-up
B. desired value
C. deviation
D. set value
[单项选择]When can routine communications be resumed when radio silence has been imposed?（）
A. After determining that the frequency or channel appears to be no longer in use
B. After determining that geographic distance from the distress situation will prohibit any other signal from interfering with emergency communications
C. Routine communications can resume after the Rescue Coordination Center transmits a message on the frequency or channel being used for emergency communications stating that such traffic has concluded
D. If，in the Master's opinion，communications on that frequency will interfere with emergency communications
[单项选择]Geographic range is the maximum distance at which a light may be seen under（）.
A. existing visibility conditions，limited only by the curvature of the Earth
B. perfect visibility conditions，limited only by the curvature of the Earth
C. existing visibility conditions，limited only by the intensity of the light
D. perfect visibility conditions，limited only by interference from background lighting
[单项选择]The angle of maximum righting arm corresponds approximatelyto the angle of（）.
A. deck edge immersion
B. the load line
C. downflooding
D. loll
[单项选择]Maximum horsepower of a diesel engine is attained （）.
A. when the engine RPM is pulled down by overload
B. at rated engine RPM
C. at 95 % of rated engine RPM
D. at 95 % of a properly adjusted governor RPM with the engine under full load
[单项选择]For safe storage, the maximum allowable temperature to which refrigerant bottles should be exposed is （）.
A. 100℃
B. 125℃
C. 150℃
D. 175℃
[单项选择]Which of the following represents the maximum percent of oxygen by volume required to be achieved by a ship’s inert gas system, prior to the commencement of crude oil tank washing?（）
A. 6%
B. 8%
C. 10%
D. 12%
[单项选择]The maximum theoretical stress that can be developed on a guy in a yard and stay rig is limited by the（）.
A. lifting capacity of the winch
B. location of the boom
C. position of the guy
D. weight of the load
[单项选择]Maximum and minimum working temperatures must be considered when choosing the joint, which must be so installed that it is neither over-compressed nor over-extendedThe bold and italic word "which "probably means （）.
A. maximum working temperature
B. minimum working temperature
C. the joint
D. the insulating material
[单项选择]The maximum difference between mean time and apparent time is （）.
A. equal to the longitude expressed in time units
B. about 16 minutes
C. the difference between the GHA of mean sun and the first point of Aries
D. 15°of arc
[名词解释]最高产量施肥量 maximum yield application rate
[填空题]It is
when
you nearly lose someone
when
you become
fully
conscious of how much you value
them
.
[单项选择]（）is your maximum draught, please?
A. How
B. What
C. Where
D. That
