The line insulation is the insulation level of the station equipment.
A). less than
B). same as
C). more than
D). proportional to
E). not directly related with
Not directly related
2. If starting winding of a single-phase induction motor is left in the circuit, it will
3. A MOSFET has ___________ terminals
5. A thermal protection switch can protect against
6. If an inductance is connected in one arm of bridge and resistances in the remaining three arms
7. After peak point, the UJT operates in the ___________ region.
9. The internal resistance of an alkali cell is nearly _____ times that of the lead-acid cell.