The angle between the working face and the fault line is small, the exposed area of the fault zone is large, and the fault passing time is .
举一反三
- When the working face passes through the fault, the angle between the working face and the fault line is large, the exposed area of the fault zone is small, and the time of passing through the fault is long.
- When the largest fault current occur after short fault () A: at the beginning time of the fault B: half cycle C: one cycle
- (19) What is the kind of fault that the fault growth index is used for?<br/>___ A: normal<br/>fault B: reverse fault C: strike-slip<br/>fault D: growth<br/>fault
- The New Madrid fault is______. A: a horizontal fault B: a vertical fault C: a more serious fault than the San Andreas fault D: responsible for forming the Mississippi River
- At a ( ) fault of the<br/>system, the non-fault phase voltage will increase with the<br/>zero-sequence impedance. A: three-phase fault B: double line-to-ground fault C: line-to-line fault D: single line-to-ground fault