继电器检修作业指导单项选择题每日一练(2018.08.12)

A.0.1Ω
B.0.15Ω
C.0.2Ω
D.0.25Ω

A.1.6-2.6Ω；≥吸起电阻的40%
B.1.7-2.7Ω；≥吸起电阻的50%
C.1.7-2.7Ω；≥吸起电阻的60%
D.1.6-2.6Ω；≥吸起电阻的70%

A.1701.4Hz±0.03Hz
B.1701.4Hz±0.15Hz
C.1698.7Hz±0.03Hz
D.1698.7Hz±0.15Hz

A.0.01S
B.0.02S
C.0.03S
D.0.05S

A.动接点
B.铁芯
C.线圈
D.翼板