Engineering Graphics (BT-105) - Important Questions

Construct a (forward reading) vernier scale for the given RF to measure up to the required length with the required least count and mark the given distances on it.

Draw a diagonal scale for the given RF / map distance to measure the required units and mark the given distances on it.

Draw an epicycloid generated by a rolling circle on the outside of a directing circle, including normal and tangent / locus of a point on a wheel rolling over a convex circular arch.

What is a scale? Classify its different types, including RF calculation and main uses.

Draw the involute of a circle as the locus of the free end of a thread/string unwound from a drum.

Write short notes on epicycloid and related topics.

Compare diagonal scale and vernier scale in terms of construction and precision and give engineering uses of each.

Draw the cycloid as the locus of a point on the circumference of a circle rolling on a straight line for one revolution.

Construct an ellipse by the focus-directrix (eccentricity) method given eccentricity $e<1$ and focus to directrix distance, and mark/measure its major axis, minor axis (and interfocal distance) and draw a tangent at a point on the curve.

Construct a parabola given the distance of its focus from its directrix and draw a tangent and normal at any point on the curve.

Draw angles of $45^\circ$ and $135^\circ$ with the help of a scale of chords.

Calculate RF from map area vs field area and draw a scale to read up to single metre and measure up to 400 metres.

Draw projections of a hexagonal lamina with an edge/side related to VP/HP and its surface inclined to VP.

Define projection, explain the principle of projection, and differentiate between first angle and third angle projections.

Draw projections of a polygonal lamina resting on one edge/side on HP with its surface inclined to HP and oriented at an angle to VP.

Draw projections of a quadrilateral plate with a diagonal inclined to HP and the other diagonal / apparent angle related to VP.

Differentiate between first angle projection and third angle projection.

Fill in the blanks on fundamentals of orthographic projection, planes, first/third angle placement, sectional views, hatching, and graphics output.

Given true length, inclination to HP, one end position and front view length, draw projections of the line.

Given true length and inclinations with both HP and VP with one end specified, draw projections of the line.

Given true length and inclinations with HP and VP with midpoint in VP and ends in specified quadrants, draw projections of the line.

Given true length, plan length and elevation length with midpoint position, draw top and front views of the line.

Name the methods employed to determine the length and true inclinations of a straight line.

Given true length and plan length with midpoint position, draw projections and find inclinations with HP and VP and locate traces.

Draw projections of a triangular prism lying on one of its rectangular faces in HP with its axis parallel to VP.

Draw projections of a hexagonal prism with its axis parallel to HP, inclined to VP and a base edge perpendicular to HP.

Draw the Floor plan of a single BHK house showing all details like window, doors and other fixtures. Assume suitable dimension for plan.

Draw projections of a pentagonal prism resting on a base edge in HP with the edge inclined to VP and the face containing the edge inclined to HP.

Draw projections of a regular tetrahedron resting on one of its edges in HP with the edge inclined to VP and the face containing the edge inclined to HP.

Draw projections of a right circular cone resting on its base rim in HP with its axis parallel to VP and one element perpendicular to HP.

Draw projections of a pentagonal prism resting on one of its rectangular faces in HP with its axis inclined to HP.

Draw projections of a right circular cone resting on one of its generators in HP.

Draw projections and true shape of section of a right regular square pyramid (base 35 mm, height 50 mm) resting on HP with base edges equally inclined to VP, cut by a section plane perpendicular to VP and inclined $32^\circ$ to HP bisecting the axis.

Draw front view and sectional top view of a hexagonal pyramid (base 30 mm, axis 60 mm) resting on HP, cut by a horizontal section plane 38 mm above the base.

Draw sectional front view and true shape of section of a cone (base 55 mm, axis 65 mm) lying on a generator on HP with axis parallel to VP, cut by a vertical plane parallel to a generator and bisecting the axis.

Draw apparent and true sections of a right regular cylinder (50 mm diameter, 65 mm long) lying on a generator on HP with axis inclined $30^\circ$ to VP, cut by a plane bisecting its axis.

Draw sectional top view and true shape of section of a right circular cylinder (54 mm diameter, 75 mm axis) with central $\phi 30$ mm through hole resting on HP, cut by a plane at $45^\circ$ to HP cutting the axis 20 mm from the top.

Draw the development of a truncated / inclined right cylinder of given dimensions.

Draw the development of the surface of a square prism with a central horizontal through hole.

Develop the lateral surface of an oblique cone of given base diameter, height and axis inclination.

Draw the isometric projection of a cube placed centrally on top of a cylindrical block.

Discuss the construction and use of an isometric scale.

Draw the Isometric view of given figure.

Draw the isometric view of a hexagonal prism resting on its base on HP given side and axis length.

Draw the isometric projection of a square pyramid resting centrally over a cylindrical block.

Draw the isometric projection of a cube resting centrally on a square block with mutually parallel edges.

Write short notes on i) isometric projection, ii) epicycloid, and iii) basic drawing commands.

Draw the isometric projection of the frustum of a cone given base diameter, top diameter and height.

Dialog boxes and windows in CAD software

What is CAD? Name two CAD softwares and give advantages and disadvantages/limitations of using CAD.

Purpose of the Zoom command in CAD

Short notes on editing commands in CAD, layering concept, and purpose of Zoom command

How to specify a plotter for graphics applications?

Explain the various advantages of CAD.

Use of the UCS icon in CAD

Explain the different methods for drawing an ellipse in AutoCAD.

Explain the different methods for drawing a circle in AutoCAD.

Explain the layering concept with examples and how it is implemented in CAD software.

Write short note on layering concept.

How does CAD software support visualization and creation of complex 3D objects and compound solids, including specific tools and features?

What is 3D modeling and what are its types?

Name and explain edit / transformation commands used in CAD such as Move, Copy, Rotate and Mirror.

Give examples where the layering concept is useful.

Explain the method of drawing wireframe models of a cone, pyramid, and prism.

Write short notes on Modify commands, Building Information Modeling (BIM), and Isometric and orthographic projection (any two)

Explain Building Information Modeling (BIM)