I think there’s something wrong with this question
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When testing the pump after maintenance, all its components as well as those of the motor should be inspected again, and the pump should be rotated manually to check its ease of movement. ( ) Correct answer: (Yes) I have an objection to the answer to this question. When testing the pump after maintenance, all its components as well as those of the motor should be inspected again, and the pump should be rotated manually to check its ease of movement. ---- Everything has been tried, so how can we check the various components of the pump and the motor? -----I hope to get the correct answer.
By trial operation, he means the rotation of the shaft before starting the trial run; just understanding that is enough.
The meaning of this question is that after the water pump has been repaired, a test run is to be carried out, but before that test run begins, it is necessary to conduct another inspection......So this answer is correct.
You’ve misunderstood the order: first check the components, then turn the machine over, and finally conduct a trial run. Otherwise, there are other specific checks to be done: checking the lubricating oil, whether there are any debris on the equipment, whether it is powered on and has water supply (for seal cooling), and so on – the list of items to check is quite long
It’s worth trying to conduct a check before operation