绞车操作工试题-判断题(国外英文资料).docVIP

绞车操作工试题-判断题(国外英文资料) [judgment questions] Category: professional knowledge The explosion-proof technology used in the electrical equipment such as winch motor, starting button, magnetic starter and so on is gap flameproof technology. Answer: Yes Mark: 1 Category: professional knowledge Test case: the joint clearance of the electric appliance shell can prevent explosion when it is stopped and cooled. Answer: Yes Mark: 1 Category: professional knowledge Question: has the ExdI logo of the permanent relief equipment, increased safety electrical equipment for the class I. Answer: wrong Mark: 1 Category: professional knowledge Test: the explosion proof outer shell of electric equipment has rust off inside and outside, and the surface of flameproof joint surface has rust, etc., it will not cause the equipment to explode. Answer: wrong Mark: 1 Category: professional knowledge The connecting bolt and spring washer of the electric appliance shell are not complete or loose, and will not cause the equipment to explode. Answer: wrong Mark: 1 Category: professional knowledge Test report: if the cable joint is not qualified or the rubber cable sheath is damaged, the core cable will be exposed, which will cause the electrical equipment to be lost. Answer: Yes Mark: 1 Category: professional knowledge Test: the sealing ring in a single hole shall not wear into the use of multiple cables. Answer: Yes Mark: 1 Category: professional knowledge Because the inner diameter of the seal ring is small, it can be cut off and sheathed on the cable. Answer: wrong Mark: 1 Category: professional knowledge Because the inner diameter of the sealing ring is large, the sealing ring and the cable sheath can be wrapped with cotton cloth and other binding materials. Answer: wrong Mark: 1 Category: professional knowledge The motor of the winch is easy to burn when it is damp, aging or grounded. Answer: Yes Mark: 1 Category: professional knowledge Question: winch due to mechanical failure caused by motor ove