继电器检修作业指导章节练习(2018.08.13)

A.3mm
B.4mm
C.5mm
D.6mm

A.0.25
B.0.35
C.0.15
D.0.3

A.±3%
B.±4%
C.±5%
D.±6%

A.0.1Ω
B.0.15Ω
C.0.2Ω
D.0.25Ω

A.30s
B.1min
C.2min
D.180s

A.100
B.110
C.220
D.440

A.≤40
B.≤50
C.≤60
D.≤70