A、increases as the angle to the horizontal increases
B、increases as the angle to the horizontal decreases
C、is greatest at an angle of 45° and decreases as the boom is raised or lowered
D、is least at an angle of 45° and increases as the boom is raised or lowered
更多“With a given load on the cargo hook，the thrust on a cargo boom（）.”相关的问题
A、loaded more on the port side forward B、loaded equally on both sides with more forward C、loaded equally on both sides with more aft D、allowed to sit anywhere
A、A.loaded more on the port side forward B、B.loaded equally on both sides with more forward C、C.loaded equally on both sides with more aft D、D.allowed to sit anywhere
A、4，based on the breaking strength B、5，based on the maximum allowable stress C、6，based on the maximum working load D、8，based on the normal working load
A、checking the loading sheet B、loading to within 1 percent of outage C、loading to within 10 percent of the safety relief valve setting D、filling to the maximum level indicated on the liquid level gaging device
A、
A、speed will drop drastically with any increase in load B、will stop due to zero fuel supply C、will stall upon application of load D、speed will remain fairly constant despite load changes
A、capacitor in series with the load B、inductor in series with the load C、capacitor and inductor in series with the load D、resistor in series with the load
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