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【单选题】
(76694)___是将物体向不平行于基本投影面投射所得的视图。(1.0分)
A. 仰视图
B. 左视图
C. 斜视图
D. 后视图
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答案
C
解析
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相关试题
【单选题】
(76695)零件图中的图形,只是用来表达零件的___,而零件各部分的真实大小及相对位置,则靠标注尺 寸来确定。(1.0分)
A. 尺寸
B. 形状
C. 大小
D. 位置
【单选题】
(76696)允许将斜视图进行___配置。(1.0分)
A. 重合
B. 平行
C. 旋转
D. 叠位
【单选题】
(76697)剖视图的剖切方法可分为全剖、___、局部剖、阶梯剖、组合剖五种。(1.0分)
A. 外剖
B. 内剖
C. 角剖
D. 半剖
【单选题】
(76698)重合剖面的图形应画在视图之内,断面的轮廓线用___绘制。(1.0分)
A. 细实线
B. 粗实线
C. 细虚线
D. 粗虚线
【单选题】
(76699)图样中的图形只能表达零件的结构形状,零件的真实大小应以图样上所标注的___为依据。(1.0 分)
A. 线条
B. 尺寸
C. 内容
D. 比例
【单选题】
(76700)移出剖面和重合剖面的区别是:移出剖面是画在视图轮廓___的剖面,重合剖面是画在视图轮廓 里面的剖面。(1.0分)
A. 上面
B. 下面
C. 外面
D. 里面
【单选题】
(76701)在剖视图中,内螺纹的大径用D表示,小径用D1表示,终止线用___表示。(1.0分)
A. 细实线
B. 粗实线
C. 细虚线
D. 粗虚线
【单选题】
(76702)剖面图用来表达零件的___形状,剖面可分为实体部分和空心部分两种。(1.0分)
A. 内部
B. 外部
C. 结构
D. 轮廓
【单选题】
(76703)零件图的技术要求是指制造和检验该零件时应达到的___要求。(1.0分)
A. 设计
B. 加工
C. 结构
D. 质量
【单选题】
(76705)由于零件的结构形状是多种多样的,所以在画图前应对零件进行结构形状分析,并针对不同零件 的特点选择___及其它视图,确定最佳表达方案。(1.0分)
A. 主视图
B. 左视图
C. 侧视图
D. 后视图
【单选题】
(76706)螺纹按其用途可分为连接螺纹和___螺纹。(1.0分)
A. 自锁
B. 传动
C. 机械
D. 三角形
【单选题】
(76707)连接螺纹主要起连接和___的作用。(1.0分)
A. 固定
B. 配合
C. 调整
D. 组装
【单选题】
(76708)磨螺纹是在专用的螺纹磨床上进行的,主要是对需要___处理(硬度较高和精度要求高)的螺纹 进行精加工。(1.0分)
A. 热
B. 冷
C. 精
D. 机械
【单选题】
(76709)FS防松螺母是运用弹簧的弹性的___原理,以弹簧旋紧与螺母螺栓间接吻合的紧固件。(1.0分)
A. 压力
B. 弹力
C. 切口
D. 摩擦
【单选题】
(76710)FS防松螺母可以在螺栓的任意位置上起___防松作用。(1.0分)
A. 自锁
B. 固定
C. 防脱
D. 紧固
【单选题】
(76711)FS防松螺母必须与头部有“___”级标记和精度等级为6g的螺栓配套使用。(1.0分)
A. 35号钢
B. 8.8
C. 10.9
D. 45号钢
【单选题】
(76712)SFT型折头螺栓与SFT防松螺母配合使用,以达到切实可靠的___效果。(1.0分)
A. 使用
B. 防松
C. 美观
D. 直接
【单选题】
(76713)折头螺栓与防松螺母安装时,要用___匀速地拧紧螺栓头部直至扳断扭矩头,不准锤击敲断扭矩 头。(1.0分)
A. 专用扳机
B. 活动扳手
C. 套筒
D. 管钳
【单选题】
(76714)扭断折头螺栓扭矩头时,折头螺栓应尽量只承受___作用,不可附加剪力。(1.0分)
A. 横向力
B. 纯扭矩
C. 敲击力
D. 顶压力
【单选题】
(76715)在螺母和工件之间加弹簧垫圈,主要目的就是起___作用。(1.0分)
A. 摩擦
B. 增高
C. 密贴
D. 防松
【单选题】
(76716)当螺母紧固后,弹簧垫片压平后产生弹力,加大螺纹间的压力,增加摩擦力,起到___作用。 (1.0分)
A. 防松
B. 摩擦
C. 密贴
D. 应力
【单选题】
___进行防松。(1.0分)
A. 销子
B. 弹簧垫圈
C. 拉铆钉
D. 开口销
【单选题】
(76718)横跨梁组装后,槽型螺母槽口须朝___安装,开口销穿入槽口内起防松作用。(1.0分)
A. 上
B. 下
C. 左
D. 右
【单选题】
(76719)在检查交叉杆端头螺栓及双耳防松垫圈状态时,双耳防松垫圈须___翘起密贴端头螺栓。(1.0 分)
A. 一片
B. 两片
C. 四片
D. 全部
【单选题】
(76720)滚动轴承端头螺栓组装后,其扭矩力须符合要求,双耳垫片须___轴端螺栓。(1.0分)
A. 密贴
B. 翘起
C. 平整
D. 翘起密贴
【单选题】
(76721)键连接是通过键实现轴和轴上零件间的周向固定以传递___和转矩。(1.0分)
A. 运动
B. 速度
C. 扭矩
D. 横向力
【单选题】
(76722)键连接装配中,键是用来连接轴上零件并对它们起___作用,以达到传递扭矩的一种机械零件。 (1.0分)
A. 轴向固定
B. 周向固定
C. 紧固连接
D. 配合
【单选题】
(76723)键连接可分为___连接、半圆键连接、楔键连接和切向键连接。(1.0分)
A. 紧固
B. 机械
C. 平键
D. 轴向
【单选题】
(76724)过盈连接是依靠包容件[孔]和被包容件[轴]配合后的___来实现紧固连接的。(1.0分)
A. 过盈
B. 过渡
C. 间隙
D. 径向
【单选题】
(76725)圆柱面过盈连接其配合过盈量的大小,是由连接本身要求的___程度所决定的。(1.0分)
A. 联结
B. 间隙量
C. 安装
D. 紧固
【单选题】
(76726)圆锥面过盈连接它是利用包容件与被包容件相对___位移后相互压紧来实现过盈结合的。(1.0 分)
A. 左右
B. 上下
C. 横向
D. 轴向
【单选题】
(76727)过盈联接之所以能传递载荷,原因在于零件具有___和联接具有装配过盈。(1.0分)
A. 韧性
B. 弹性
C. 刚性
D. 柔性
【单选题】
(76728)过盈联接装配后包容件和被包容件的径向变形使配合面间产生很大的压力,工作时载荷就靠着相 伴而生的___来传递。(1.0分)
A. 摩擦力
B. 应力
C. 剪切力
D. 横向力
【单选题】
(76729)过盈联接当配合面为圆柱面时,可采用压入法或___法(加热包容件或冷却被包容件)装配。 (1.0分)
A. 焊接
B. 冷却
C. 温差
D. 加温
【单选题】
(76730)纵向过盈连接的装配宜采用压装法,压装设备的压力,宜为压入力3.25~3.75倍;压入和压出速度 不得大于___。(1.0分)
A. 5mm/s
B. 10mm/s
C. 15mm/s
D. 20mm/s
【单选题】
(76731)过盈连接的压入配合法可用手锤加垫块敲击压入,也可采用___压入。(1.0分)
A. 人工
B. 压力机
C. 冷却法
D. 加温法
【单选题】
(76732)过盈连接的液压套合法是使高压油注入锥套中,使油压___,锥套膨胀顶出或装入。(1.0分)
A. 上升
B. 下降
C. 增大
D. 减少
【单选题】
(76733)平面连杆机构中常用的是由___组成的平面四杆机构。(1.0分)
A. 一杆
B. 二杆
C. 三杆
D. 四杆
【单选题】
(76734)在铰链四杆机构中,固定不动的构件称为___;能作整周旋转的连架杆称为曲柄。(1.0分)
A. 机架
B. 摇杆
C. 连杆
D. 曲柄
【单选题】
(76735)能在一定角度内来回往复摆动的连杆称为___;不与机架直接连接的杆称为连杆。(1.0分)
A. 机架
B. 摇杆
C. 连杆
D. 曲柄
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