S1: Certain protective devices are fitted in the motor circuit. S2: They can protect against faults such as single phasing, overload or under voltage. Q: Which one is not mentioned?
单选题
S1: We found nothing wrong during the trials. Shall we test it with load? S2: Yes, please. Let me ask the electrical engineer to prepare for parallel operation. Q: What do they want the electrical engineer to do?
单选题
The blackout occurred due to generator overload. 发电机过载导致停电。
问答题
Describe the spaces on board a ship.描述船上的空间。 (1) Main engine room 主机舱. (2) Holds 货舱. (3) Accommodation area 生活区.
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