- Entrance Exams
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- Talent Search Exams
1. To develop competence among the students to pursue technical courses like Engineering, Architecture, Draftsmanship Surveying and other professional courses.
2. To understand basic principles of instrumental drawing drawn to scale and to acquire basic skills in the use of traditional drafting methods which would also be helpful in understanding computer aided designs.
3. To acquire the basic knowledge in their applications in various fields.
There will be one written paper of three hours duration carrying 100 marks and Internal Assessment of 100 marks.
The paper will be divided into two sections, Section I and Section II.
Section I (40 marks) shall consist of compulsory short answer questions chosen from the entire syllabus.
Section II (60 marks) shall contain questions which require longer answers. There will be a choice of questions.
THEORY – 100 Marks
1. Types of lines
(i) Border lines.
(iii) Dashed/ Dotted lines.
(iv) Centre lines.
(v) Extension lines or Projection lines.
(vi) Dimension lines.
(vii) Construction lines.
(viii) Cutting-Plane lines.
(ix) Section or Hatching lines.
(x) Short break lines.
(xi) Long break lines.
The names of different lines and their uses to be matched with the correct thickness and shade
(i) Aligned system.
(ii) Unidirectional System.
3. Lettering and Numbering
Upright capitals and small, freehand, single stroke, as used in Engineering drawing, and between, the correct guide lines.
4. Sheet Layout
Basic – draw border lines, title block with name, sheet number, title etc.
5. Geometrical Constructions
(a) Bisector of line segment.
(b) Division of a line segment into required number of parts/ proportional parts.
(c) Perpendicular and parallel lines.
(d) Bisection of an angle, trisection of a right angle/ straight angle.
(e) Congruent angle.
(f) To find the centre of an arc.
(g) Regular polygons up to six sides with simple methods using T-square and setsquares.
Point, Lines and Angles: Definitions of the various terms used in relation to, a point, different types of lines and different types of angles to be used only in construction.
Triangles: Definition of a triangle, the terms (with their definitions) relating to the different parts of a triangle, classifying the different kinds of triangles, according to their sides / angles.
Construction of Triangles when the following is given:
Construction of Isosceles Triangles when the following is given:
Construction of Right angled triangles when the following is given:
Quadrilaterals:Definitions of a quadrilateral / different kinds of quadrilaterals, e.g. a square, a rectangle, a rhombus and a trapezium to be used only in the construction of
Polygons: Definition of a polygon ( regular and irregular) and the terms relating to it only to be used in construction methods and Special construction methods of regular polygons (up to eight sides) when the following is given:
Circles and tangents: Definition of a circle / tangent, and the different parts contained in a circle, e.g. center, circumference, diameter, radius, arc, chord, sector and segment. Concentric circles only to be used in construction methods for:
6. Basic facility in Orthographic Projections
(a) Projection of points.
(b) Projection of lines (in 1st quadrant/ 3rd quadrant / contained by reference plane)
(i) line parallel to both the reference planes.
(ii) line parallel to one of the reference planes and perpendicular to the other plane.
(iii) line inclined to one of the reference planes and parallel to the other plane.
(iv) line inclined to both the reference planes.
(v) To find the true length of the line from the given projections.
(c) Projections of Surfaces/ Areas: such as regular polygons and circular lamina (1st angle and 3rd angle).
(i) surface perpendicular to both the reference planes.
(ii) surface perpendicular to one of the reference planes and parallel to the other.
(iii) Surface inclined to one of the surface planes and perpendicular to the other.
(iv) Conversion of simple pictorial views into orthographic views (1st angle / 3rd angle method) ELEVATION (F.V) PLAN
(T.V.) END VIEW: LHS/RHS.
Its definition. The complete explanation with demonstration of viewing objects, placed within the First and Third quadrant (the planes of projections), and obtaining the different views, i.e. the front elevation, visible end elevations and plan, and drawing them, accordingly, using the, First angle or the Third angle, method of projection. Hidden end elevation to be excluded. Layout of drawing sheet, i.e. the Orthographic views (First / Third angle method), inserting the required projection lines, center lines, leader lines, dimension lines, dimensioning from the Pictorial (Isometric / Oblique view) of the object.
7. Isometric drawing
Copying the given isometric figure (simple and basic).
Their definition and their uses, the correct method of drawing them, along with the correct use of the appropriate, basic, drawing instruments.
The difference between the Isometric projection and the Isometric view.
8. Free hand sketching
Domestic items, appliances and tools, such as cup with a saucer, an electric bulb, a fountain pen with the cap removed, a tooth brush, a hammer (ball / claw pein), , a woodsaw, a hacksaw, a screwdriver, a spanner, pliers, chisel, tri-square, calipers (internal and external) a pair of scissors, a pair of compasses, divider, knife, water tap etc.
Draw free hand sketches of these tools keeping the proportion of various parts.
PART II – INTERNAL ASSESSMENT
Minimum fifteen drawing assignments to be done during the year as assigned by the teacher.
There will be one written paper of three hours duration carrying 100 marks and Internal Assessment of 100 marks.
The paper will be divided into two sections, Section I and Section II
Section I will consist of a number of questions covering Section A of the syllabus. The candidates are to attempt three questions out of five.
Section II will consist of questions covering Section B of the syllabus. The candidates are to attempt two questions out of three.
THEORY – 100 Marks
1. Geometrical Constructions based on Plane Geometry
(i) Division of a line into equal or proportional parts: Construction of a triangle/ quadrilateral when its perimeter and the ratio of the lengths of its sides are given.
(ii) Division of a circle into equal parts (4, 6, 8, 12) using set square or compasses.
(iii) To find the length of an arc/circumference of a circle.
(iv) An angle and a circle touching its sides.
(v) A circle of given radius passing through two given points.
(vi) An arc passing through three noncollinear points.
(vii) A continuous arc passing through not more than 5 non-collinear points.
(viii) A regular polygon (3, 4 5 6 sides) with special methods (side given).
(ix) Construction of a regular octagon in a square (side of the square = distance between parallel sides of a octagon).
(x) More than one polygon (sides 3, 4, 5, 6, 7, 8) on a common base on the same side/opposite sides.
(xi) Inscribing/Circumscribing a circle on a regular polygon (3, 4, 5, 6 sides).
(xii) Inscribe/Circumscribe a circle of given radius by a regular polygon up to six sides.
(xiii) In a regular polygon to draw the same number of equal circles as the sides of the polygon each circle touching one /two sides of the polygon and two of the other circles externally.
(xiv) Outside a regular polygon to draw the same number of equal circles as the sides of the polygon each touching one side of the polygon and two of the other circles externally.
(xv) Regular hexagon and 3 equal circles inside it touching one side/ two sides of the hexagon and the other two circles externally.
(xvi) A circle and (3, 4, 5, 6,) equal circles inside it touching internally and touching each other externally.
(xvii) Tangents to a circle at a point on the circumference.
(xviii) Direct common tangents/Transverse common tangents to two equal/unequal circles. Also to measure and record their lengths.
(xix) Drawing (not more than three) circles touching each other externally and also touching two converging lines (radius of one of the circles is given).
2. Area constructions
(i) Constructions based on the application of area theorems (area of polygons).
(ii) Converting the given polygon into a triangle having equal/half/double the area of the polygon.
(iii) Changing given triangles (2 or 3) into a single triangle having the area equal to the sum of the areas of the given triangles.
Methods for constructing:
3. Templates as an application of geometrical constructions and other constructions such as:
(i) Arc of a given radius touching a given line and passing through a given point.
(ii) Arc of given radius touching two intersecting straight lines.
(iii) Arc of given radius touching a given arc and a straight line.
(iv) Arc of a given radius touching two given arcs (externally/internally).
(To redraw the given figure and insert the dimensions).
Applying the construction methods, involving circles, tangential, circles / arcs /straight lines and points, for constructing TEMPLATES of various shapes.
(i) To find the R.F. (Representative Fraction) and the scale length from the given data by showing neat working.
(ii) Construction of a plain scale/diagonal scale.
(iii) Use of constructed scale in the preparation of field drawing scale diagram (Enough data to be provided).
Definition of R.F. formula. Finding the Representative Fraction (R. F.) and the Scale length by the given data by showing neat working/lettering. Construction of Plain and Diagonal Scales in different units of linear measurements, and marked and numbered accordingly. Transferring the required measurements, from the constructed scale, to create finished Scaled drawings, of: field drawings / templates / Orthographic projections / plane geometrical constructions.
5. Engineering Curves
An ellipse, a parabola
Engineering Curves (construction only) as used in
manhole covers, arches, dams, monuments etc.
(i) Ellipse: (major and minor axes given)
(a) by arcs of circles method.
(b) by the concentric circles method.
(c) by oblong method.
(ii) Parabola (base and axis given)
(a) by rectangle method.
(b) by tangent method
(i) Orthographic projections of right solids such as regular prisms and pyramids with bases as regular polygons up to six sides, cylinder and cone.
(a) Axis perpendicular to one of the reference planes and parallel to the other.
(b) Axis parallel to both the reference planes(prism/cylinder only).
(c) Axis inclined to one of the reference planes and parallel to the other. Use of auxiliary plane may be included.(Auxiliary elevation and auxiliary plan).
(ii) Development of surfaces of the right solids (Parallel and Radial).
(iii) Determination of true length of line when inclined to both the reference planes e.g. slant edge of a pyramid.
Right Solids, such as, Prisms (triangular, square, pentagonal and hexagonal )
Pyramids (triangular, square, pentagonal and hexagonal bases.), Cylinders and Cones:
Simple word problems on
(i) orthographic projections of right solids.
(ii) Parallel and Radial Development of lateral surfaces of right solids with axis perpendicular to H.P. and parallel to V.P.
(iii) Determination of true length of the slant edge of a pyramid when the slant edge is inclined to both H.P. and V.P.
(iv) Auxiliary views:
Figure showing auxiliary inclined plane should be given with the word problem.
–– Auxiliary elevation of right solid with axis parallel to H.P. and inclined to V.P.
–– Auxiliary plan of a right solid with axis inclined to H.P. and parallel to V.P.
7. Oblique drawing
Conversion of given orthographic views to oblique view (circular parts in top view to be excluded).Circular parts only in one view either in front view or in the side view. The angle of inclination with the receding axis to be given
8. Sections of right solids (prism, pyramid, cylinder and cone)
(i) Sectional views of cut solids with axis perpendicular to H.P. and parallel to V.P.
(a) V.T. (Vertical Trace) parallel to or inclined to H.P.
(b) H.T. (Horizontal Trace) parallel/inclined to V.P. (Figure showing V.T and H.T should be given) Questions based on word problems should be excluded.
(ii) Axis parallel to both the reference planes (prism and cylinder only) with H.T .or V.T. of cutting plane shown in the figure.
(iii) Development of lateral surfaces of cut solids (parallel, radial): Prism, Pyramid, cylinder, cone.
(iv) Development of pipe joints as elbow joints, exhaust pipes etc. and the objects made of sheet metals in the shape of cylinders.
(v) True shape of a section.
(vi) Auxiliary views (A.F.V. /A.T.V.) of cut solids with axis perpendicular to H.P and parallel to V.P with
(a) Auxiliary plane parallel to the cutting plane.
(b) Auxiliary plane inclined to H.P at a given angle q.
Sections of Right Solids, such as, Prisms, Cylinders, Pyramids and Cones.
Sectional views, of cut / truncated solids,
Developments of the lateral surfaces of:
Auxiliary view, of cut / truncated solids such as prism / pyramids / cylinder / cone, when the axis is perpendicular to the H.P. and parallel to the V.P. with the Auxiliary plane;
Auxiliary plane should be shown in the figure.
The True Shape of the, cut / truncated, surface of right solids such as prism / pyramid / cylinder / cone when axis is perpendicular to H.P. and parallel to V.P.
9. Isometric Drawing (Use of scale to draw isometric drawing may be included. e.g. 2:1 or 1:2 only).
(a) Copy the given isometric figure.
(b) Conversion of the given orthographic view into isometric drawing.
(c) Isometric projection by constructing and making use of an isometric scale.
Isometric Drawing: In full scale and maybe in the scale of 2:1 or 1:2.
10. Sectional Orthographic views (1st and 3rd angle methods)
(a) Conversion of given pictorial view (Isometric/oblique into sectional/half sectional orthographic views).
(b) Conversion of a given orthographic view into sectional/half sectional views and adding the missing view.
The Orthographic Projection, First and Third, angle methods: (at least one of the views as sectional view).
PART II- INTERNAL ASSESSMENT – 100 MARKS
1. To prepare a file containing minimum 15 drawing assignments. The drawing assignments should cover entire syllabus of class X. One / two assignments on each units of syllabus should be prepared on half imperial size drawing paper.
2. To make a three dimensional model with stiff cartridge paper / chart paper involving the application of the development of solids such as a prism / pyramid.
3. To make a model with thermocol involving the application of the true shape of the section of truncated solids such as a prism / pyramid / cylinder / cone.
The assignments/project work is to be evaluated by the subject teacher and by an External Examiner. The External Examiner may be a teacher nominated by the Head of the school, who could be from the faculty, but not teaching the subject in the section/class.
The Internal Examiner and the External Examiner will assess the assignments independently.
Award of marks (100 marks)
Subject Teacher (Internal Examiner): 50 marks
External Examiner: 50 marks
The total marks obtained out of 100 are to be sent to the Council by the Head of the school. The Head of the school will be responsible for the entry of the marks on the mark sheets provided by the Council.
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