单项选择题
If two AC generators are operated in parallel, the load is distributed evenly by()
A.a rheostat B.a balancing coil C.changing field excitation D.adjusting the governor settings
单项选择题 What would the amps be at 240 volts with an 8 ohm resistance?()
单项选择题 The actual rudder angle reading is()
单项选择题 According to the passage, during the tests,()