Drafting Techniques and Tools Quiz
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Questions and Answers

What is the primary use of a T-square in drafting?

  • To measure angles precisely
  • To create smooth curves
  • To determine lengths in drawings
  • To draw straight horizontal lines (correct)

Which tool is specifically designed to measure and draw angles?

  • Protractor (correct)
  • T-square
  • Ruler
  • French curves

Which of the following dimensions corresponds to the B4 paper size?

  • 297 X 210 mm
  • 420 X 297 mm
  • 353 X 250 mm (correct)
  • 250 X 176 mm

What is the function of a ruler or scale in drafting?

<p>To determine lengths and distances (D)</p> Signup and view all the answers

French curves are primarily used for which of the following?

<p>Drawing smooth, irregular curves (C)</p> Signup and view all the answers

In the context of paper sizes, which dimension represents the A3 size?

<p>594 X 420 mm (D)</p> Signup and view all the answers

What are the degree markings found on a protractor used for?

<p>Measuring angles (C)</p> Signup and view all the answers

What is the significance of marking point C 30 mm above xy in the orthographic projections?

<p>It shows the location of point C relative to the vertical plane. (D)</p> Signup and view all the answers

Why is hatching used in engineering drawings?

<p>To indicate the material composition of components. (C)</p> Signup and view all the answers

Which of the following is a correct procedure to represent point D in the orthographic projection?

<p>Mark d' 30 mm below xy and d 40 mm in front of xy. (B)</p> Signup and view all the answers

What is the purpose of using continuous thin lines for projectors in drawings?

<p>To illustrate the relationship between points in different planes. (A)</p> Signup and view all the answers

What hatching angles are recommended for standard drawings?

<p>45° and 135° angles. (B)</p> Signup and view all the answers

What type of line is used to represent a physical break in the drawing?

<p>Zig zag straight OR Long Break Line (D)</p> Signup and view all the answers

Which line type would best indicate the center of a circular feature in a drawing?

<p>Chain Line/Center Line (D)</p> Signup and view all the answers

What type of line is typically used for borders in engineering drawings?

<p>Border Line (C)</p> Signup and view all the answers

Which type of line is commonly used to show edges and boundaries in a drawing?

<p>Continuous Thick / Continuous Wide (A)</p> Signup and view all the answers

In engineering drawings, which line indicates a dimension or measurement?

<p>Extension Line/Projection Line (B)</p> Signup and view all the answers

Which of the following lines is used to illustrate the path of movement or flow in a drawing?

<p>Leader OR Pointer Line (C)</p> Signup and view all the answers

Which line type is most appropriate for indicating a cutting or section view?

<p>Cutting Plane Line (C)</p> Signup and view all the answers

When creating a dimensional representation in a drawing, which line should be avoided?

<p>Curved Line (A)</p> Signup and view all the answers

What is the primary use of a Continuous Thin (Narrow) line in engineering drawings?

<p>Represent hidden edges (B)</p> Signup and view all the answers

How can a 30° angle be drawn accurately?

<p>Using the 30°/60° set square (D)</p> Signup and view all the answers

Which of the following methods is used to draw a 90° angle?

<p>Using the edge of the set square (B)</p> Signup and view all the answers

To create a 135° angle, what initial angle must be drawn?

<p>90° (B)</p> Signup and view all the answers

What should be done after drawing an angle to ensure its accuracy?

<p>Use a protractor for verification (B)</p> Signup and view all the answers

Which angle requires subtracting a 15° angle from a 90° angle?

<p>75° (A)</p> Signup and view all the answers

How can you draw a 150° angle?

<p>By drawing a 120° angle and adding a 30° angle (D)</p> Signup and view all the answers

What tool is suggested for adjusting angles when necessary?

<p>Set squares and ruler (A)</p> Signup and view all the answers

What must be drawn first to accurately create a 120° angle?

<p>60° angle (C)</p> Signup and view all the answers

What angle can be created by adding a 15° angle to a 90° angle?

<p>105° (A)</p> Signup and view all the answers

What is the main purpose of dimensions in technical drawing?

<p>To define size, location, or orientation of geometrical parts (A)</p> Signup and view all the answers

Which of the following defines a one-dimensional object?

<p>A line segment with length only (B)</p> Signup and view all the answers

What is the correct definition of a polygon?

<p>A geometric figure with straight sides formed by connecting line segments (B)</p> Signup and view all the answers

Which of the following represents a two-dimensional object?

<p>A triangle with three straight sides (A)</p> Signup and view all the answers

In terms of dimensions, what does 3D stand for?

<p>Representation including length, width, and height (A)</p> Signup and view all the answers

What are the basic apparatus used to construct a regular polygon in technical drawing?

<p>T-Square, set-square, and protractor (D)</p> Signup and view all the answers

Which unit of measurement is NOT typically used in defining dimensions?

<p>Kelvin (C)</p> Signup and view all the answers

What characteristic does a three-dimensional object have that a two-dimensional object does not?

<p>Depth (A)</p> Signup and view all the answers

What geometric shape is specifically a one-dimensional representation?

<p>Line segment (B)</p> Signup and view all the answers

Which of the following describes the term 'vertex' in the context of polygons?

<p>The point where two line segments meet (A)</p> Signup and view all the answers

Flashcards

T-Square

A drafting tool with a long, straight blade and a perpendicular handle, used to draw accurate horizontal lines.

Ruler

A measuring tool with marked units used to determine lengths in drawings.

Protractor

A tool for measuring and drawing angles, with a semi-circular disk and degree markings.

French Curves

Flexible drafting tools with curved edges, used to draw smooth, irregular curves in technical drawings.

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Letter Paper

A standard paper size, 8.5 x 11 inches.

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Legal Paper

A standard paper size, 14 x 8.5 inches.

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Drawing Board

A drafting tool used to draw precise lines and curves on a drawing board.

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Outer Line

A type of line used for outlining objects, creating boundaries, and defining the main shape of a drawing.

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Margin Line

A type of line that marks the edges of the drawing sheet and defines the area for the drawing.

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Extension Line/Projection Line

A type of line used to extend features from the object to the dimension line, helping indicate the dimension being measured.

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Construction Line

A type of line used for constructing and outlining shapes, usually temporary lines that can be erased later.

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Continuous Thick Line

A type of line that is continuously thick, either straight or curved and is used for outlining shapes.

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Continuous Thin Line

A type of line that is continuous and thin, either straight or curved, used for drawing outlines and details.

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Continuous Thin (Free Hand) Line

A type of line that is continuously thin and drawn freehand, used for sketching and rough outlines.

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Dashed Thick/Thin Line

A line that has alternating long and short dashes, used for defining hidden edges of an object.

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Chain Line/Center Line

A type of line with alternating short and long dashes, used for representing a center line or axis of symmetry.

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How to draw a 30° angle?

To draw a 30° angle, directly use the 30°/60° set square.

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How to draw a 45° angle?

To draw a 45° angle, directly use the 45° set square.

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How to draw a 60° angle?

To draw a 60° angle, directly use the 30°/60° set square.

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How to draw a 75° angle?

To draw a 75° angle, subtract a 15° angle from 90° (which you can draw with your set square).

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How to draw a 90° angle?

To draw a 90° angle, use the edge of the set square directly.

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How to draw a 105° angle?

To draw a 105° angle, add a 15° angle to 90°.

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How to draw a 120° angle?

To draw a 120° angle, extend the line of a 60° angle to the opposite side.

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How to draw a 135° angle?

To draw a 135° angle, add a 45° angle to 90°.

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How to draw a 150° angle?

To draw a 150° angle, add a 30° angle to 120°.

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How to draw a 160° angle?

To draw a 160° angle, start with 120° and add a 40° angle (close to a 45° angle).

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Dimension

A numeric value that defines the size, location, or orientation of a geometric part in a drawing.

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Polygon

A 2D shape with straight sides and corners formed by connecting line segments.

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One Dimension (1D)

A line that represents a single direction of measurement, like length or height.

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Two Dimension (2D)

A flat shape that has both length and width, such as a square or circle.

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Three Dimension (3D)

A 3D object that has length, width, and height, such as a cube or a ball.

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Geometry Box

A tool that includes a ruler, compass, protractor, and other drawing implements.

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What is hatching?

A method used in technical drawings to represent the shape, direction, or orientation of an object using parallel lines. It signifies different materials or parts in elevations, sections, or layout plans.

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What are the standard hatching angles?

Hatching lines are typically drawn at 45° or 135° angles, allowing for clear visual distinction between objects without visual clutter.

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What is hatching?

The technique of using parallel lines to represent the shape, direction, or orientation of an object.

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What is XY line?

A reference line on a drawing representing the intersection of the horizontal plane (HP) and the vertical plane (VP).

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What is a projector?

A perpendicular line drawn from a point in space to represent its projection onto a plane of projection, typically the horizontal or vertical plane.

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Study Notes

Civil Engineering Drawing Practical Course

  • Course Description: This is a practical course covering engineering drawing.
  • First Semester: The course covers 15 practical exercises, drawing sheets, objective tests, evaluation/reports, OEL projects, QOBE based results, and viva voce/result.
  • Drawing Instruments: A variety of instruments are used. Some include: drawing board, drawing sheet, T-square, set squares, protractor, French curves, set of pencils, clinograph, compass, divider, drawing templates, masking tape, eraser, scale, paper pins.
  • Drawing Papers: Commonly used drawing papers include drawing paper, graph paper, copy paper, bond paper, card stock, glossy paper, matte paper, newsprint, tissue paper, construction paper, watercolor paper, coated paper, tracing paper, as well as water-marked paper.
  • Paper Sizes: Standard paper sizes like A0, A1, A2, A3, A4, A5, B0, B1, B2, B3, B4, B5, as well as Letter and Legal sizes are included.
  • Line Types: Various types of lines are used for technical drawing, including continuous thick, continuous thin, chain thin double dashed line, dimension, curved, perpendicular, parallel, railway track, castle, leader or pointer, and hatching lines.
  • Scales: Engineering drawings use different scales. Full-size drawing are done sometimes and can be reduced or enlarged for different applications.
  • Polygons and Shapes: The study of polygons including triangles, quadrilaterals, pentagons, hexagons, heptagons, octagons, nonagons, decagons are included.
  • AutoCAD Software: Use of AutoCAD software is introduced in the course, covering the use of short keys, units and dimensions including using different commands, to draw, and modify.
  • Projection Of Points: The course involves drawing projections of points in the first and second, third and fourth quadrants using certain techniques to create proper drawings from a 2-D point to a 3-D shape.
  • Hatches: Various types of engineering hatches are introduced for drawing different components.
  • Isometric and Perspective View: The course includes drawing isometric and perspective views.
  • Open-ended Lab: The course includes an open-ended lab assignment.

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Engineering Drawing Practical (PDF)

Description

Test your knowledge on essential drafting techniques and tools in this quiz. You'll be challenged with questions on equipment like T-squares, protractors, and various paper sizes. Perfect for students in drafting or related fields.

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