Engineering Drawing Basic | Interview Question and Answers – Part 3

机械工程专业学生的工程图，图形，机器绘画访谈，Viva，口腔检查问答和答案。188金宝搏bet官方下载

Engineering Drawing Basic –第1部分|第2部分|第3部分|第4部分

Q51 - 什么是部分视图？为什么在绘图中使用部分视图？

Ans51 – The view obtained after cutting the object in order to show the inner details by an imaginary cutting plane is known as sectional view. Sectional views are used in drawing to show the interior details of the object, which are not visible to the observer from outside.

Q52 - 什么是切割平面或截面平面？

ANS52： - 假定对象被切割的假想平面称为切割平面或截面平面。它们可能是垂直的或平行于主要平面之一，并且垂直或倾向于另一个平面。这些平面由它们的痕迹代表。

Q53 - 什么是截面或孵化线？

ANS53 - 用于表示切割平面切割的材料的线称为截面线。它们也被称为孵化或交叉染色。这些是相同的间隔线，在45º的水平上倾斜。

Q54 – What do you mean by sections of solids?

ANS54 - 由截面平面切割的固体可视化无形特征的内部结构细节，称为固体部分。

Q55 - 什么是显而易见的部分？

Ans55:- The projection of the section on the plane to which it is inclined is called as apparent section.

Q56 - 什么是真实的部分？

ANS56： - 平行于平面平面的平面上的截面的投影将显示截面的真实形状。

Q57 - 您将如何对固体部分进行分类？或者
What are the different positions of a section plane w.r.t. two reference lines? Or
What are the types of sections of solids?

ANS57： - 1）通过水平面获得的固体部分。
2）通过垂直平面获得的固体部分。
3) Section of solids obtained by auxiliary inclined planes.
4) Section of solids obtained by auxiliary vertical planes.
5) Section of solids obtained by profile plane.

Q58 – What do you understand by V.T. and H.T. of section plane?

Ans58 –

水平跟踪（H.T） - H.T.截面平面是一条平面与H.P.
垂直跟踪（V.T.） - V.T.截面平面是一条平面与V.P.

Q59 - Frustum是什么意思？

ANS59 - 当截面平面与锥形或金字塔的基本平面平行时，它将形成冰果。

Q60 – What do you mean by truncated?

ANS60 - 当截面平面倾斜到固体的基本平面时，它将形成截断。

Q61 - 您通过表面的交集了解什么？

Ans61 – The lines or curves which are formed when surfaces of two solids intersect with each other are known as intersection of surfaces or interpenetration of solids.

Q62 – What are the lines or curve of intersection or interpenetration?

ANS62： - 当固体渗透到另一种固体中时，它们的表面在称为交点或互穿的线或曲线的线中相遇。

Q63 - 提供表面交集或固体互穿的实际应用。

Ans63:- It is used in (i) sheet metal shop (ii) pipe fittings (iii) boiler fittings (iv) aeroplane construction (e.g. wings, fuse lags etc.) (v) Automobile layout works (e.g. body wheel house, chairs etc.)

Q64 - 命名绘制固体相交或渗透线的线的方法？

Ans64:- 1) Line method or piercing point method
2) Cutting plane method

Q65:- How will you classify the intersecting surfaces?

Ans65:-

1) the intersection of plane surfaces
2) The intersection of two curved surfaces
3）平面表面和弯曲表面的交点

Q66 - 表面发展是什么意思？

Ans66:- A layout of the complete surface of a three dimensional object on a plane surface is called its development or pattern.

Q67:- What is stretch out or girth line?

Ans67:- The stretch out or girth line is the length of the pattern or development and is given by the perimeter of the object measured in a plane at right angles to the axis. This term is used in patterns of objects having a constant cross section for their full length. e.g. prisms and cylinders.

Q68 – What is the principle of development?

ANS68 - 开发基于以下原理，该原理表明开发上的每一行必须显示需要开发的对象表面上相应线的真实长度。

Q69 - 表面开发的不同方法是什么？

Ans69: 1)平行线发展
2）径向线发展
3) Triangulation development
4) Approximate method

Q70 - 为什么确定倾斜边缘的真实长度？

ANS70 - 确定倾斜边缘的真实长度，因为开发上的每一行必须显示要开发对象表面上相应线的真实长度。

Q71 – What are the applications of development of surfaces?

Ans71:- It is used in the fabrication of simple to highly complicated shapes from flat surfaces in sheet metal shops, in the construction of boilers, pattern making, tunnels, buckets, chimney etc.

Q72 – What is a point?

ANS72 - 一个点是只有位置但没有幅度的重点。它通常由一个很小的圆或点表示。

Q73 - 八分之一的意思是什么？

Ans73 – When the three planes i.e. H.P., V.P. and P.P. divide the entire space into eight quadrants, then these quadrants are known as octants.

Q74 - 第一角和第三角投影之间有什么区别？B.I.S.推荐哪个角度投影如今？
或者
What are the types of orthographic projections?

ANS74： -

First angle projection:-在此投影中，假定对象位于第一个象限中，即在V.P的前面及更高版本的HP，在这些平面上获得的投影称为第一个角度投影。第一个角度投影的符号是

Third angle projection: –在此投影中，假定对象位于HP以下和VP后面的第三个象限中。前视图位于XY线下方和上方的顶视图下方。第三个角度投影的符号是

Now a day we are working with first angle projection because it is recommended by the B.I.S and it is adopted by almost all the countries of the world since 1983.