ICSE Class 10 Syllabus 2027 Technical Drawing Applications

ICSE YEAR 2027

INDIAN CERTIFICATE OF
SECONDARY EDUCATION
EXAMINATION

TECHNICAL DRAWING
APPLICATIONS
(65)

February 2025
____________________________________________________________________________________________

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CLASS X
There will be one written paper of three hours duration (xiv) Outside a regular polygon to draw the
carrying 100 marks and Internal Assessment of same number of equal circles as the sides
100 marks. of the polygon each touching one side of
the polygon and two of the other circles
THEORY – 100 Marks externally.
SECTION A (xv) Regular hexagon and 3 equal circles inside
1. Geometrical Constructions based on Plane it touching one side/ two sides of the
Geometry hexagon and the other two circles
externally.
(i) Division of a line into equal or
proportional parts: Construction of a (xvi) A circle and (3, 4, 5, 6,) equal circles inside
triangle/ quadrilateral when its perimeter it touching internally and touching each
and the ratio of the lengths of its sides are other externally.
given. (xvii) Tangents to a circle at a point on the
(ii) Division of a circle into equal parts (4, 6, circumference.
8, 12) using set square or compasses. (xviii) Direct common tangents/Transverse
(iii) To find the length of an arc/circumference common tangents to two equal/unequal
of a circle. circles. Also, to measure and record their
lengths.
(iv) An angle and a circle touching its sides.
(xix) Drawing (not more than three) circles
(v) A circle of given radius passing through touching each other externally and also
two given points. touching two converging lines (radius of
(vi) An arc passing through three non-collinear one of the circles is given).
points.
2. Area constructions
(vii) A continuous arc passing through not more
than 5 non-collinear points. (i) Constructions based on the application of area
theorems (area of polygons).
(viii) A regular polygon (3, 4 5 6 sides) with
special methods (side given). (ii) Converting the given polygon into a triangle
having equal/half/double the area of the
(ix) Construction of a regular octagon in a polygon.
square (side of the square = distance
between parallel sides of a octagon). (iii) Changing given triangles (2 or 3) into a single
triangle having the area equal to the sum of the
(x) More than one polygon (sides 3, 4, 5, 6, 7, areas of the given triangles.
8) on a common base on the same
side/opposite sides. Methods for constructing:

(xi) Inscribing/Circumscribing a circle on a • a scalene triangle / isosceles triangle /a right
regular polygon (3, 4, 5, 6 sides). angled triangle equal to the area / half the area
/ twice the area of any given quadrilateral.
(xii) Inscribe/Circumscribe a circle of given
radius by a regular polygon up to six sides. • a parallelogram equal in area to any given
triangle.
(xiii) In a regular polygon to draw the same
number of equal circles as the sides of the • a triangle equal in area to the sum of any two /
polygon each circle touching one /two three given triangles.
sides of the polygon and two of the other • a triangle equal in area / half the area to any
circles externally. given regular pentagon / hexagon.

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• a triangle of a given base / altitude, equal in 5. Engineering Curves
area to another given triangle. An ellipse, a parabola
• a triangle equal in area to ½ or twice the area Engineering Curves (construction only) as used in
of any given triangle. manhole covers, arches, dams, monuments etc.
• a square equal in area to any given (i) Ellipse: (major and minor axes given)
parallelogram / triangle / rectangle.
(a) by arcs of circles method.
• a square, equal in area to any given regular
pentagon / hexagon. (b) by the concentric circles method.
(c) by oblong method.
3. Templates as an application of geometrical
constructions and other constructions such as: (ii) Parabola (base and axis given)

(i) Arc of a given radius touching a given line (a) by rectangle method.
and passing through a given point. (b) by tangent method
(ii) Arc of given radius touching two intersecting
straight lines. 6. Solids

(iii) Arc of given radius touching a given arc and (i) Orthographic projections of right solids such as
a straight line. regular prisms and pyramids with bases as
regular polygons up to six sides, cylinder and
(iv) Arc of a given radius touching two given arcs cone.
(externally/internally).
(a) Axis perpendicular to one of the reference
(To redraw the given figure and insert the planes and parallel to the other.
dimensions).
(b) Axis parallel to both the reference planes
Applying the construction methods, involving (prism/cylinder only).
circles, tangential, circles / arcs /straight lines and
points, for constructing TEMPLATES of various (c) Axis inclined to one of the reference
shapes. planes and parallel to the other. Use of
auxiliary plane may be included
4. Scales (Auxiliary elevation and auxiliary plan).

(i) To find the R.F. (Representative Fraction) and (ii) Development of surfaces of the right solids
the scale length from the given data by (Parallel and Radial).
showing neat working. (iii) Determination of true length of line when
(ii) Construction of a plain scale/diagonal scale. inclined to both the reference planes e.g. slant
edge of a pyramid.
(iii) Use of constructed scale in the preparation of
field drawing scale diagram (Enough data to Right Solids, such as, Prisms (triangular,
be provided). square, pentagonal and hexagonal)

Definition of R.F. formula. Finding the Pyramids (triangular, square, pentagonal and
Representative Fraction (R.F.) and the Scale hexagonal bases.), Cylinders and Cones
length by the given data by showing neat Simple word problems on:
working/lettering. Construction of Plain and
Diagonal Scales in different units of linear (i) Orthographic projections of right solids.
measurements, and marked and numbered • with its axis, perpendicular to one plane,
accordingly. Transferring the required and, parallel to the other plane.
measurements, from the constructed scale, to
create finished Scaled drawings, of: field drawings • with its axis, parallel to both planes.
/ templates / Orthographic projections / plane • with its axis, parallel to one plane, and,
geometrical constructions. inclined to the other plane.

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(ii) Parallel and Radial Development of lateral (vi) Auxiliary views (A.F.V. /A.T.V.) of cut solids
surfaces of right solids with axis with axis perpendicular to H.P and parallel to
perpendicular to H.P. and parallel to V.P. V.P with
(iii) Determination of true length of the slant (a) Auxiliary plane parallel to the cutting
edge of a pyramid when the slant edge is plane.
inclined to both H.P. and V.P.
(b) Auxiliary plane inclined to H.P at a given
(iv) Auxiliary views: angle θ.
Figure showing auxiliary inclined plane Sections of Right Solids, such as, Prisms,
should be given with the word problem. Cylinders, Pyramids and Cones.
–– Auxiliary elevation of right solid with Sectional views, of cut / truncated solids,
axis parallel to H.P. and inclined to
V.P. • with its axis, perpendicular to the H.P. and
parallel to the V.P., when the cutting plane is
–– Auxiliary plan of a right solid with axis parallel / inclined to H.P. or, to the V.P. (only
inclined to H.P. and parallel to V.P. one cutting plane to be expressed in the figure)
7. Oblique drawing • with its axis, parallel to both planes (prisms
and cylinders only), with not more than one
Conversion of given orthographic views to oblique
cutting plane shown in the figure.
view (circular parts in top view to be excluded).
Circular parts only in one view either in front view Developments of the lateral surfaces of:
or in the side view. The angle of inclination with
• Cut Solids / Truncated Solids (parallel and
the receding axis to be given
radial), such as, Prisms, Cylinders, Pyramids
and Cones with one cutting plane shown in the
SECTION B figure.

8. Sections of right solids (prism, pyramid, • Cylindrical pipe joints, as used for
cylinder and cone) constructing, Chimneys, Ventilators, exhaust
pipes, etc., as application of development of
(i) Sectional views of cut solids with axis lateral surfaces of cut/truncated cylinders with
perpendicular to H.P. and parallel to V.P. one/more than one cutting plane shown in the
(a) V.T. (Vertical Trace) parallel to or inclined figure.
to H.P. Auxiliary view, of cut / truncated solids such as
(b) H.T. (Horizontal Trace) parallel/inclined prism / pyramids / cylinder / cone, when the axis is
to V.P. (Figure showing V.T and H.T perpendicular to the H.P. and parallel to the V.P.
should be given) Questions based on word with the Auxiliary plane;
problems should be excluded. • parallel to the cutting plane.
(ii) Axis parallel to both the reference planes • at an inclination to the H.P
(prism and cylinder only) with H. T. or V.T. of
cutting plane shown in the figure. Auxiliary plane should be shown in the figure
and the True Shape of the, cut / truncated, surface
(iii) Development of lateral surfaces of cut solids of right solids such as prism / pyramid / cylinder /
(parallel, radial): Prism, Pyramid, cylinder, cone when axis is perpendicular to H.P. and
cone. parallel to V.P.
(iv) Development of pipe joints as elbow joints,
exhaust pipes etc. and the objects made of sheet 9. Isometric Drawing (Use of scale to draw
metals in the shape of cylinders. isometric drawing may be included. e.g. 2:1 or 1:2
only).
(v) True shape of a section.
(a) Copy the given isometric figure.

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(b) Conversion of the given orthographic view into • Dimensioning the Orthographic views showing
isometric drawing. the cutting plane, naming the views.
(c) Isometric projection by constructing and PART II- INTERNAL ASSESSMENT -
making use of an isometric scale.
100 MARKS
Isometric Drawing: In full scale and maybe in the
scale of 2:1 or 1:2. 1. To prepare a file containing minimum 15 drawing
assignments. The drawing assignments should
• Drawing the Isometric view, from a given, cover entire syllabus of class X. One / two
Isometric view.
assignments on each units of syllabus should be
• Drawing the Isometric view, by reading and prepared on half imperial size drawing paper.
visualizing the same, from the given
2. To make a three-dimensional model with stiff
Orthographic views.
cartridge paper / chart paper involving the
• Drawing the Isometric projection from either a application of the development of solids such as a
given pictorial view or the Orthographic views, prism / pyramid.
by constructing and using the Isometric Scale.
3. To make a model with thermocol involving the
10. Sectional Orthographic views (1 and 3 angle
st rd application of the true shape of the section of
methods) truncated solids such as a prism / pyramid /
cylinder / cone.
(a) Conversion of given pictorial view
(Isometric/oblique into sectional/half sectional EVALUATION
orthographic views).
The assignments/project work is to be evaluated by the
(b) Conversion of a given orthographic view into subject teacher and by an External Examiner. The
sectional/half sectional views and adding the External Examiner may be a teacher nominated by the
missing view. Head of the school, who could be from the faculty, but
The Orthographic Projection, First and third, not teaching the subject in the section/class.
angle methods: (at least one of the views as The Internal Examiner and the External Examiner will
sectional view). assess the assignments independently.
• Drawing the Orthographic views / full Award of Marks (100 Marks)
sectional views / half-sectional views of an
object shown in a given pictorial view: Subject Teacher (Internal Examiner) 50 marks
Isometric / Oblique with cutting plane / planes External Examiner 50 marks
shown.
The total marks obtained out of 100 are to be sent to
• Converting the given Orthographic view / CISCE Council by the Head of the school.
views into Sectional views, full / half according
to the Cutting plane line / lines marked in a The Head of the school will be responsible for the
given view / views. online entry of marks on CISCE’s CAREERS portal by
the due date.

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INTERNAL ASSESSMENT IN TECHNICAL DRAWING APPLICATIONS - GUIDELINES FOR MARKING WITH GRADES
Criteria Preparation Analysis Process Results Presentation
Grade I Follows instructions Analyses problem Comments upon, Recognises and Presentation is accurate
(4 marks) (written, oral, and systematically. recognises use of comments upon sources and good. Appropriate
diagrammatic) with Recognises a number of instruments, degree of of error. techniques are well
understanding; modifies variables and attempts to accuracy. Process is Can deal with used.
if needed. Familiarity control them to build a systematic. unexpected effects,
with and safe use of logical plan of suggesting
apparatus, materials, construction. modifications.
techniques.
Grade II Follows instructions to Specifies sequence of Makes relevant Draws qualitative Presentation is adequate.
(3 marks) perform experiment operation; gives reasons procedural conclusions to proceed Appropriate techniques
with step-by-step for any change in modification. No with construction. are used.
operations. Awareness procedure. assistance is needed for
of safety. Familiarity understanding steps of
with apparatus, constructions.
materials and
techniques.
Grade III Follows instructions to Develops simple Detailed instructions not Draws obvious Presentation is okay, but
(2 marks) perform a single development strategy. given. qualitative conclusions disorganised in some
operation at a time. Trial and error as required in the places. Overwriting;
Safety awareness. modifications made to process. rough work is untidy.
Familiarity with proceed with the
apparatus & materials. construction.
Grade IV Follows some Struggles through the Tends to make mistakes Even when detailed Presentation is poor,
(1 mark) instructions to perform a construction. Follows in the following format is provided, disorganised but follows
single practical very simple techniques. procedure. struggles or makes an acceptable sequence.
operation. Casual about errors while processing Rough work missing or
Safety. Manages to use the work. untidy.
apparatus & materials.
Grade V Not able to follow Cannot proceed with the Even when format is Cannot process the work Presentation
(0 marks) instructions or proceed development without given procedure is not even with considerable unacceptable;
with practical work help from time to time. understood. help. disorganised, untidy,
without full assistance. poor. Rough work
Unaware of safety. missing.

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