Engineering Drawing IMPORTANT QUESTIONS And Important Concepts
01 - Introduction 06
01.01 Importance of Engineering Drawing as graphic communication. Link between engineering drawing and other subjects of study in diploma course.
01.02 I. S. specification for preparation of drawings.
01.03 Use of drawing instruments and materials. Basic Tools- classification and brief description.
01.04 Special Tools: Mini-drafter. Drafting Machine.
01.05 Scales, Recommended, reduced and enlarged scale.
01.06 Lines, Types of lines, Selection of line thickness.
01.07 Selection of Pencils.
01.08 Drawing sheets, different sheet sizes and standard layouts. Title block as per I.S. specification.
01.09 Care and maintenance of drawing material.
02 - Lettering, Numbering and Dimensioning 12
02.01 Importance of lettering. Different types of lettering as per I. S. code. Capital and small letters of vertical and slanting type as per I. S. code.
02.02 Numerical figures of vertical and slanting type as per I. S. code. Single stroke and double stroke, advantages.
02.03 Necessity of dimensioning. Principles and method of dimensioning and dimensioning practice as per I.S.I. code.
02.04 Making of Centre Line, Section Line, Dimensioning Lines, etc.
02.05 Drawing of plain and diagonal scales and dimensioning practice.
03 - Conic Section 24
03.01 Concept of Drawing and concept of conic section and its simple properties.
03.02 Concept of ellipse and its construction by various methods. Drawing of tangent and normal on ellipse.
03.03 Concept of parabola and its construction by various methods. Drawing of tangent and normal to parabola.
03.04 Concept of hyperbola and its construction by various methods. Drawing of tangent and normal to hyperbola.
03.05 Concept of spirals; construction of Logarithmic & Archemerian spirals. To draw tangent and normal to the curves.
04 - Orthographic Projections 39
04.01 Principles of orthographic projection. Concept of horizontal, vertical and auxiliary planes. 1st angle and 3rd angle projection.
04.02 Projection of points on horizontal, vertical and auxiliary planes and its implication.
04.03 Projection of lines on different planes, Length of line and its true inclination with different planes and its traces.
04.04 Concept of orthographic projection of planes.
05 - Section Views and Auxiliary Views 12
05.01 Concept of sectioning and drawing section lines, Need for drawing sectional views.
05.02 Section of simple geometrical solids-cases involving different types of cutting planes.
05.03 Conventional representation of materials as per I.S. Code.
06 - Isometric, Pictorial and Oblique Drawing 18
06.01 Introduction to pictorial drawing. Brief description of different types of pictorial drawing viz Isometric, oblique and perspective and their applications.
06.02 Concept of Isometric views. Isomeric Projection and Isometric Scale.
06.03 Isometric Projection of simple solids, frustum of solids, truncated solids and sets of simple solids.
06.04 Concept of oblique and perspective views.
06.05 Simple drawing of oblique views.
07 - Development of Surfaces 09
07.01 Development of surfaces of Cylinders, Prisms, Pyramids, cones and their frustum and truncated objects.