NECO Technical Drawing Syllabus 2026/2027 & Textbooks

By Syllabus2026 February 23, 2026 Uncategorized 0 Comments

The NECO Technical Drawing Syllabus 2026 focuses on developing engineering drawing communication skills through three papers: Objective (40 marks), Essay (60 marks), and Practical (100 marks). Key areas include plane geometry, solid geometry (projections, sections), engineering drawing, and freehand sketching of tools. Students choose between Mechanical or building drawing in the final practical.

The NECO Technical Drawing syllabus aims to equip students with fundamental graphical communication skills, enabling them to interpret, create, and analyze engineering and architectural drawings using standard, conventional techniques. It emphasizes proficiency in freehand sketching, orthographic/pictorial projections, geometric construction, and the application of CAD (Computer-Aided Design).

Marking Guides

Paper 1: Multiple-Choice Objective

Paper 1 has 40 multiple-choice questions split into two sections. You’ll answer all 40 questions in one hour, totaling 40 marks. Paper 1 questions are divided into two part; Section A and B. Section A questions are 30 and they are set from general principles, techniques, and uses of plane and solid geometry. Section B has 10 questions and you are expected to choose between Part I (Building Drawing) and Part II (Mechanical Drawing). You are expected to answer all questions in your chosen part.

Paper 2: Essay Questions

Paper 2 comprises 5 essay questions, and you’ll need to answer 3 of them in 1 3⁄4 hours. The total marks for this paper are 60. This paper covers topics like plane geometry, solid geometry, and vector geometry. And each question carries 20 marks, answering three questions correctly can earn you a maximum of 60 marks.

Paper 3: Sketches and Practical Drawing

Paper 3 is the practical aspect of this exam; this paper has two sections, and it requires a mix of sketches and detailed drawings. 2¾ hours will be allocated to this section for a total of 100 marks. This paper is divided into two sections:

Section A and Section B.

Section A: This section contains three questions. One is compulsory, and you’ll need to answer one other question. This part focuses on sketches of objects, components, symbols, and tools used in the building and Mechanical industries. You have 45 minutes to complete this section. The total questions required for your answer is worth 70 marks.

Section B: This section has two questions, one on building drawing and one on mechanical drawing. You’ll choose one to answer in 2 hours. The compulsory question in this section is worth 20 marks, while the other question is 10 marks.

NECO Technical Drawing Syllabus 2026/2027

TECHNICAL DRAWING
SN	TOPIC	OBJECTIVES
1	Drawing materials and equipment, types of drawing and applications	-Standard size drawing A2 ISO board and drawing sheet, set squares, drawing instruments, a protractor, and a T-square.
2	Lines, lettering and dimensioning	– Types of lines and their uses. Types and styles of lettering, title blocks and border lines. These should conform to BS 1192 and BS 308A.
3	Division of lines and its applications	-Dividing into a given number of equal parts or proportion and other simple exercises involving mathematical problems.
4	Scales and their uses	-Plain and diagonal scales, constructions and their applications, including scale of chords.
5	Angles	Types and their constructions
6	Triangles, quadrilaterals and other polygons	Regular and irregular polygons: properties and their constructions.
7	Circles	Parts, types, properties, and their constructions.
8	Tangents and tangency	Construction and application of principles of tangency to spanner, anchors and other tools.
9	Inscribed, circumscribed and inscribed figures	Definitions, identification, and their constructions.
10	Similar figures and areas	Enlargement and reduction by area and side.
11	Loci	-Definition and construction of straight line, circle,ellipse, parabola, hyperbola, helix, trochoids (inferior and superior) spiral, cycloid, hypocycloid, involutes and link mechanisms.
	SOLID GEOMETRY
12	Lines in space and planes	Location of points and lines in space. True length and angle of inclination of a line. Intersecting lines, plane relationships and traces. Types of planes and edge views of planes.
13	Pictorial drawing: isometric, oblique, perspective	Isometric scales and circles, oblique scales and curves. One and two points perspective, including free hand sketching.
14	Orthographic projection	Multiplane,1st and 3rd angle projection.
15	Auxiliary projections	Prisms, cones, cylinder, cube, pyramid (right and oblique), including second auxiliary projection.
16	Sectional views and true shapes	True shape of sections of prisms, cylinders pyramids and cones, (ellipse, parabola, hyperbola, circle and triangle).
17	Development of surfaces	Surfaces of right and oblique pyramids, prisms, cylinders, cones, their truncated parts and frustum .Transition pieces.
18	Intersection /Interpenetration	Intersections of cylinders, cones, prisms and pyramids.
	SYMBOLS AND CONVENTIONS
19	Symbols and conventions used in plane and solid geometry	Example, the symbol used to indicate the diameter of a circle.
	BUILDING DRAWING
1	Freehand sketching and identification of building tools	Both pictorial and orthographic sketches of building tools.
2	Foundations and Floors	Types and parts of foundations and floors.
3	Openings – windows, doors and arches	Types and parts of doors, windows and arches.
4	Stairs and staircases	Parts and types of staircases.
5	Roofs	Types and parts of roofs.
6	Constructional details of parts of buildings	Includes wall, column, beam, lintel, etc.
7	Working drawings of buildings	Orthographic projections and sectional views.
8	Building materials, freehand sketching, symbols and conventions	Including electrical and plumbing fittings.
	MECHANICAL DRAWING
1	Freehand sketching and identification of mechanical tools	Both pictorial and orthographic sketches of mechanical tools.
2	Dimensioning	Limits and fits, allowances, tolerances; emphasis on correct techniques.
3	Screw threads, fasteners and locking devices	Include conventional representation, construction and their applications.
4	Sectioning	Full,half-part,offset,broken,removed,aligned and revolved.
5	Pictorial drawing	Isometric and oblique drawing; including freehand sketching.
6	Working and assembly drawing.	Orthographic and sectional views.
7	Symbols, conventions and abbreviations	Include electrical and plumbing fittings and welding symbols.

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