電務(wù)系統(tǒng)理論考試電子電氣設(shè)備檢修單項選擇題每日一練(2019.05.01)

A.41-62
B.42-61
C.41-42
D.61-62

A.1700Hz
B.2300Hz
C.2600Hz
D.2800Hz

A.1.4
B.1.6
C.1.8
D.2

A.9.6A≤I≤10.4A
B.10.0A≤I≤10.4A
C.9.6A≤I≤11.4A
D.10.6A≤I≤11.4A

A.≤700mV
B.≤800mV
C.≤850mV
D.≤900mV