钳工基础试题

钳工基础试题 钳工基础知识试题 一、选择题 答案 八年级地理上册填图题岩土工程勘察试题省略号的作用及举例应急救援安全知识车间5s试题及答案 (每题2分，共计30分) 1、滑动轴承的轴瓦主要失效形式是( ) A、折断 B、塑性变形 C、磨损 2、用定位销连接承受振动和有变向载荷的地方宜选用( ) A、圆柱销 B、圆锥销 C、槽销 3、轴承在高速旋转时宜用( ) A、脂润滑 B、油润滑 4、丝杆和螺母之间的相对运动属于( ) A、螺旋传动 B、啮合传动 C、磨擦传动 5、锯割薄板零件宜选用( )锯条。 A、细齿 B、粗齿 6、当材料强度、硬度低，钻头直径小时宜选用( )转速 A、较低 B、较高 7、用S,14mm的铁板卷成直径是Φ200的水管，宜选用( ) A、冷弯法 B、热弯法 8、锉销精度可达到( ) A、1mm B、0.01mm C、0.1mm 9、对于传动效率较高，受力较大的机械上宜用( ) A、管螺纹 B、梯形螺纹 C、普通螺纹 10、两轴的中心距较大时宜选用( )传动。 A、齿轮 B、蜗轮蜗杆 C、带轮 1) the code for seismic design of Highway Engineering (JTG 050-2005) the rules for the seismic design of highway bridges (JTG/T B02-01-2008) code for design of highway traffic safety facilities (JTG D81-2006) code for design of urban road project (CTG 37-2012) the city code for seismic design of bridges (CJJ 166-2011) of the engineering construction standard compulsory article (bridge section) JGJ59-2011 the standard of construction safety inspection of the construction project of power supply on construction site safety regulations (GB50194-93) of the specification for municipal bridge engineering construction and acceptance (CJJ-2-2008) of the concrete quality control standards (GB50164-2011 the code for engineering survey (GB50026-2007) of the steel specification for welding and acceptance (JGJ18-96) Municipal Code or standard, there is no project, According to norms or standards of highway bridge associated with it. 1.7 project where the relevant departments and local governments on construction safety, site security, health, environmental protection and land tenure and other relevant standards and regulations. 1.8 I construction of similar projects of long-term experience and construction sections and construction site invest 11、C型带轮的槽口宽为( ) A、23 B、17 C、14 12、用镀铬的方法修复主轴，其镀层应保证具有( )mm的磨削余量。 A、0.01 B、1 C、0.03~0.1 D、10 13、堆焊方法修复主轴，其堆焊的厚度通常为( )mm。 A、5~10 B、5~8 C、1.5~5 14、两线间电压超过( )时称为高压。 A、360V B、220V C、250V D、180V 15、机床上的照明设备和常移动的手持电器都采用( )以下电压，即安全电压。 A、18V B、220V C、36V D、12V 二、判断题 (每题2分，共计30分) 1、工件残余应力引起的误差和变形都很小，不会对机器构成影响。( ) 2、各种液压油性能都差不多，因此可任意混合使用。( ) 3、测量误差主要是人的失误造成，和量具、环境无关。( ) 4、圆锥销定位用于经常拆卸的地方。( ) 5、圆柱销定位用于不常拆卸的地方。( ) 6、被加工零件的精度等级越低，数字越小。( ) 7、液压传动容易获得很大的力、低速、大扭矩的传动，并能自动控制扭矩输出。( ) 8、液压传动效率高，总效率可达100,。( ) 9、螺纹的作用是用于连接，没有传动作用。( ) 1) the code for seismic design of Highway Engineering (JTG 050-2005) the rules for the seismic design of highway bridges (JTG/T B02-01-2008) code for design of highway traffic safety facilities (JTG D81-2006) code for design of urban road project (CTG 37-2012) the city code for seismic design of bridges (CJJ 166-2011) of the engineering construction standard compulsory article (bridge section) JGJ59-2011 the standard of construction safety inspection of the construction project of power supply on construction site safety regulations (GB50194-93) of the specification for municipal bridge engineering construction and acceptance (CJJ-2-2008) of the concrete quality control standards (GB50164-2011 the code for engineering survey (GB50026-2007) of the steel specification for welding and acceptance (JGJ18-96) Municipal Code or standard, there is no project, According to norms or standards of highway bridge associated with it. 1.7 project where the relevant departments and local governments on construction safety, site security, health, environmental protection and land tenure and other relevant standards and regulations. 1.8 I construction of similar projects of long-term experience and construction sections and construction site invest 10、液压千斤顶是依靠液体作为介质来传递能量的。( ) 11、锯割软材料或锯缝较长的工件时，宜选用细齿锯条。( ) 12、扩孔时的切削速度一般为钻孔的，进给量为钻孔时的1.5~2倍。( ) 13、一般材料厚度在5毫米以下时，采用热弯法。( ) 14、内螺纹圆锥销多用于盲孔。( ) 15、1英寸等于8英分。( ) 三、简答题(每题8分，共计40分) 1、什么是机械加工工艺过程, 2、三相异步电动机怎样改变其旋转方向, 3、装配图的内容包括哪些内容, 4、水平仪有什么用途, 5、什么是强度, 1) the code for seismic design of Highway Engineering (JTG 050-2005) the rules for the seismic design of highway bridges (JTG/T B02-01-2008) code for design of highway traffic safety facilities (JTG D81-2006) code for design of urban road project (CTG 37-2012) the city code for seismic design of bridges (CJJ 166-2011) of the engineering construction standard compulsory article (bridge section) JGJ59-2011 the standard of construction safety inspection of the construction project of power supply on construction site safety regulations (GB50194-93) of the specification for municipal bridge engineering construction and acceptance (CJJ-2-2008) of the concrete quality control standards (GB50164-2011 the code for engineering survey (GB50026-2007) of the steel specification for welding and acceptance (JGJ18-96) Municipal Code or standard, there is no project, According to norms or standards of highway bridge associated with it. 1.7 project where the relevant departments and local governments on construction safety, site security, health, environmental protection and land tenure and other relevant standards and regulations. 1.8 I construction of similar projects of long-term experience and construction sections and construction site invest