【多选题】【消耗次数：1】
直径大于40mm钢筋的切断方法应采用（ ）。
①
锯床锯断
②
手动剪切器切断
③
氧-乙炔焰割切
④
钢筋剪切机切断
⑤
电弧割切
参考答案：
复制
纠错
相关题目
【多选题】
断电安全要求。发现起火后，首先要设法切断电源。切断电源的操作，正确的包括（）。
①
切断电源的地点要选择适当，防止切断电源后影响灭火工作
②
火灾发生后，由于受潮或烟熏，开关设备绝缘能力降低，因此，拉闸时最好用绝缘工具操作
③
高压应先操作隔离开关切断电源，低压应应先操作闸刀开关切断电源，以免引起电弧
④
剪断电线时，不同相电线应在不同部位剪断，以免造成短路;剪断空中电线时,剪断位置应选择在电源方向的支持物附近，以防止电线切断后断落下来造成接地短路和触电事故
【单选题】
对钢筋电渣压力焊的接头进行外观检查时，接头处的轴线偏移不得大于钢筋直径的 倍，且不得大于 mm。（ ）
①
0.1 ，2
②
0.1 ，4
③
0.2 ，2
④
0.2 ，4
随机题目
【单选题】
Evidence came up _____ specific sounds are recognized by babies as young as 6 months old.
①
what
②
that
③
which
④
why
【单选题】
As a result of careless washing the jacket _____ to a child’s size.
①
compressed
②
shrank
③
dropped
④
decreased
【单选题】
Would you like some more coffee? There’s still _______ left.
①
a few
②
few
③
a little
④
1ittle
【单选题】
____________ I’m 20.
①
How are you?
②
How old are you?
③
Where are you from?
④
May I have your name?
【单选题】
Only when one is ______ of one’s getting behind is one more likely to catch up.
①
critical
②
aware
③
visual
④
effective
【单选题】
The boy is not happy at the new school. He has _________ friends there.
①
few
②
a few
③
little
④
a little
【单选题】
The hospital bed is no longer ______ by his wife because she is fine now.
①
overlooked
②
occupied
③
opened
④
Operated
【单选题】
The car ran over the child, but by a _____ he was unhurt.
①
wonder
②
marvel
③
miracle
④
surprise
【单选题】
You will probably _____ your team’s chance to win because you seem to have such a great ______them.
①
affect; influence
②
effect; influence
③
affect; effect on
④
effect; affect on