【判断题】【消耗次数:1】
丝锥等刀具。
正确
错误
参考答案:
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相关题目
【单选题】 ( )包括刀具制造、安装误差、刀具磨损等。
①  刀具的几何误差
②  夹具的几何误差
③  机床的几何误差
【单选题】 ( )包括工具曲线磨床、钻头沟槽磨床、丝锥沟槽磨床等。
①  刀具刃磨磨床
②  工具磨床
③  平面磨床
【单选题】 ( )是一种组合式螺纹刀具,分为自动板牙切头和自动丝锥切头两类,通常是开合式。
①  螺纹铣刀
②  螺纹拉刀
③  螺纹切刀
【单选题】 ( )是用于在机床上加工螺纹的丝锥,其刀柄除有方头外,还有环形槽,以防止丝锥从夹头中脱落。
①  手用丝锥
②  机用丝锥
③  螺母丝锥
【单选题】 为了减小和控制刀具的磨损,正确选择切削条件必须研究刀具磨损的原因和机理,该说法( )
①  正确
②  错误
【单选题】 ( )包括切削用量、刀具材料、工件材料、切削液等。
①  切削加工影响表面粗糙的因素
②  影响表面粗糙度的工艺因素
③  磨削加工中影响表面粗糙度的因素
【单选题】 用铣刀、砂轮等旋转类刀具加工时,刀具自身旋转的同时按一定的轨迹运动,即为相切法,该说法( )
①  正确
②  错误
【判断题】 刀具耐用度就是刀具的寿命。
①  正确
②  错误
【单选题】 ( )是指专门用于机床上加工螺母的丝锥,它有直柄和弯柄之分。
①  螺母丝锥
②  手用丝锥
③  机用丝锥
【单选题】 在刀具工作角度参考系中确定的刀具角度称为刀具的( )
①  现实角度
②  虚幻角度
③  工作角度
随机题目
【单选题】 the fact()we may not be able to directly assist you does not mean your complaint isnt valid.
①  which
②  whom
③  who
④  that
【单选题】 The footballer made a (n) _____ gesture, which made the audience’s blood boil.
①  mature
②  offering
③  offensive
④  hesitative
【单选题】 When traveling, you are advised to take travelers’ checks, which provide a secure _____ tocarrying your money in cash.
①  preference
②  selection
③  choice
④  alternative
【单选题】 She was protesting against ______ government telling students what they should and should not eat at school.
①  bossy
②  patient
③  kind
④  fragile
【单选题】 Why not join us in baseball?____________
①  Ok. I’m coming.
②  You do the same.
③  Don’t mention it.
④  That’s alright.
【单选题】 The sports meeting was put off till the next week ______ rain.
①  in spite of
②  so
③  because
④  because of
【单选题】 I have the complacent feeling ______ I’m highly intelligent.
①  what
②  which
③  that
④  this
【单选题】 It was not until he arrived in class _____ realized he had forgotten his book.
①  when he
②  that he
③  and he
④  he
【判断题】 判断线上的内容是否正确:The teachers tried to __convince____ these students that they could solve the complicated problem, however, they just didn’t see the point.
①  正确
②  错误
【判断题】 判断线上的内容是否正确:For ten years the Greeks ___surrounded___ the city of Troy to separate it from the outside.
①  正确
②  错误