Engineering Drawing MCQ

Q: What is the primary purpose of engineering drawing?

The primary purpose of engineering drawing is to visually communicate engineering ideas. These drawings convey technical information clearly and accurately, allowing for precise understanding and interpretation.

Q: Why are different line types used in technical drawings?

Different line types in technical drawings are used to differentiate between various boundaries and features. Each line type represents specific elements or characteristics, such as hidden edges, visible outlines, or centerlines, to ensure clarity and accuracy in the representation.

Q: What is orthographic projection, and how is it used?

Orthographic projection is a method of representing three-dimensional objects in two dimensions, using multiple views (usually front, top, and side). This projection method, which includes first-angle and third-angle projections, helps provide a complete and accurate visualization of an object's shape and details.

Q: What is the primary purpose of dimensioning in engineering drawings?

Dimensioning in engineering drawings defines the size and location of features on an object. It provides essential information for manufacturing, allowing for the accurate creation of parts and assemblies according to specified dimensions.

Q: What does CAD stand for, and what is its purpose?

CAD stands for Computer Aided Design. It is a technology used to create precise drawings and models in engineering and architecture, allowing designers to draft, modify, and optimize designs efficiently on a computer.

Question 1

Question 1: What is the primary purpose of engineering drawing?

A. To create artistic sketchesB. To draft legal documentsC. To visually communicate engineering ideasD. To create marketing materials

Answer

C. To visually communicate engineering ideas. Engineering drawings are used to clearly convey technical information. (Engineering Drawing MCQ by Top100MCQ.com)

Question 2

Question 2: Which organization sets international standards for engineering drawings?

A. ASTMB. ISOC. ANSID. IEEE

Answer

B. ISO. The International Organization for Standardization (ISO) sets global standards for engineering drawings. (Engineering Drawing MCQ by Top100MCQ.com)

Question 3

Question 3: What type of line is used to represent hidden features in engineering drawings?

A. Solid lineB. Dashed lineC. Chain lineD. Dotted line

Answer

B. Dashed line. Dashed lines indicate hidden features that are not visible in a particular view. (Engineering Drawing MCQ by Top100MCQ.com)

Question 4

Question 4: In technical drawings, what is the purpose of using different line types?

A. To improve aesthetic appealB. To differentiate types of boundaries and featuresC. To create artistic effectsD. To indicate the scale of the drawing

Answer

B. To differentiate types of boundaries and features. Different line types help represent various elements and their significance. (Engineering Drawing MCQ by Top100MCQ.com)

Question 5

Question 5: Which of the following is a standard font style used in engineering drawings?

A. Times New RomanB. ArialC. Roman Single StrokeD. Calibri

Answer

C. Roman Single Stroke. Engineering drawings typically use Roman Single Stroke for clarity and uniformity. (Engineering Drawing MCQ by Top100MCQ.com)

Question 6

Question 6: Which tool is primarily used for drawing circles in technical drawings?

A. RulerB. ProtractorC. CompassD. T-square

Answer

C. Compass. A compass is commonly used to draw circles and arcs in technical drawings. (Engineering Drawing MCQ by Top100MCQ.com)

Question 7

Question 7: What is the primary purpose of a T-square in engineering drawing?

A. To draw circlesB. To measure anglesC. To draw straight linesD. To sharpen pencils

Answer

C. To draw straight lines. T-squares are used to draw horizontal lines and help align other drawing instruments. (Engineering Drawing MCQ by Top100MCQ.com)

Question 8

Question 8: Which instrument is essential for measuring and drawing angles?

A. Set squareB. ProtractorC. CompassD. Ruler

Answer

B. Protractor. A protractor is specifically designed for measuring and drawing angles. (Engineering Drawing MCQ by Top100MCQ.com)

Question 9

Question 9: What is the standard size of an A4 drawing sheet?

A. 210 x 297 mmB. 297 x 420 mmC. 420 x 594 mmD. 594 x 841 mm

Answer

A. 210 x 297 mm. A4 sheets are commonly used and measure 210 x 297 mm. (Engineering Drawing MCQ by Top100MCQ.com)

Question 10

Question 10: What information is typically included in the title block of an engineering drawing?

A. Color schemeB. Designer’s name and dateC. Material specificationsD. Drawing scale and revisions

Answer

B. Designer’s name and date. The title block often contains the designer’s name, the date, and other relevant information about the drawing. (Engineering Drawing MCQ by Top100MCQ.com)

Question 11

Question 11: What is the first step in constructing a polygon?

A. Measuring the anglesB. Dividing a circleC. Drawing a base lineD. Finding the center point

Answer

C. Drawing a base line. Constructing a polygon often begins with drawing a baseline as a reference. (Engineering Drawing MCQ by Top100MCQ.com)

Question 12

Question 12: When constructing an angle bisector, which tool is primarily used?

A. CompassB. ProtractorC. Set squareD. T-square

Answer

A. Compass. A compass is commonly used to bisect angles by creating intersecting arcs. (Engineering Drawing MCQ by Top100MCQ.com)

Question 13

Question 13: How many sides does a regular pentagon have?

A. 3B. 5C. 6D. 8

Answer

B. 5. A pentagon has five equal sides and angles in a regular configuration. (Engineering Drawing MCQ by Top100MCQ.com)

Question 14

Question 14: Which curve is generated by a point moving at a constant distance from a fixed point?

A. EllipseB. CircleC. HyperbolaD. Parabola

Answer

B. Circle. A circle is formed by a point moving at a constant distance from a central point. (Engineering Drawing MCQ by Top100MCQ.com)

Question 15

Question 15: What geometric shape is formed by a right-angled cone section?

A. EllipseB. ParabolaC. HyperbolaD. Circle

Answer

B. Parabola. A parabola is created when a cone is cut by a plane parallel to one of its sides. (Engineering Drawing MCQ by Top100MCQ.com)

Question 16

Question 16: Which conic section is defined as the locus of all points such that the ratio of distances to a fixed point and a fixed line is constant?

A. CircleB. EllipseC. ParabolaD. Hyperbola

Answer

C. Parabola. This definition describes a parabola, where the constant ratio is 1. (Engineering Drawing MCQ by Top100MCQ.com)

Question 17

Question 17: What is the purpose of constructing tangents in engineering drawings?

A. To represent parallel linesB. To show intersecting linesC. To indicate curve transitionsD. To separate sections

Answer

C. To indicate curve transitions. Tangents help in smoothly connecting different curves in engineering drawings. (Engineering Drawing MCQ by Top100MCQ.com)

Question 18

Question 18: How is a hyperbola generated in conic sections?

A. By cutting a cone parallel to its baseB. By cutting a cone perpendicular to its baseC. By cutting a cone parallel to its sideD. By cutting a cone at an angle to both its base and side

Answer

D. By cutting a cone at an angle to both its base and side. This creates two separate curves called hyperbolas. (Engineering Drawing MCQ by Top100MCQ.com)

Question 19

Question 19: Which tool would you use to construct an ellipse?

A. Compass onlyB. French curve onlyC. Compass and stringD. Ellipsograph

Answer

D. Ellipsograph. An ellipsograph is a tool designed to accurately draw ellipses. (Engineering Drawing MCQ by Top100MCQ.com)

Question 20

Question 20: What is the sum of all internal angles in a hexagon?

A. 360 degreesB. 540 degreesC. 720 degreesD. 1080 degrees

Answer

C. 720 degrees. The sum of internal angles in a hexagon is calculated as (6-2) × 180 = 720 degrees. (Engineering Drawing MCQ by Top100MCQ.com)

Question 21

Question 21: Which projection method uses two main angles for view orientation?

A. ObliqueB. OrthographicC. PerspectiveD. Isometric

Answer

B. Orthographic. Orthographic projection uses two main types: first-angle and third-angle projections. (Engineering Drawing MCQ by Top100MCQ.com)

Question 22

Question 22: In first-angle projection, where is the top view placed?

A. Above the front viewB. Below the front viewC. Next to the front view on the rightD. Next to the front view on the left

Answer

B. Below the front view. In first-angle projection, the top view is placed below the front view. (Engineering Drawing MCQ by Top100MCQ.com)

Question 23

Question 23: Which of the following best represents the purpose of orthographic projection?

A. To provide a 3D view of an objectB. To depict an object from multiple perspectivesC. To show the object in one dimensionD. To create a realistic rendering of the object

Answer

B. To depict an object from multiple perspectives. Orthographic projection shows different views (front, top, side) for accuracy. (Engineering Drawing MCQ by Top100MCQ.com)

Question 24

Question 24: In third-angle projection, where is the right-side view located?

A. To the right of the front viewB. To the left of the front viewC. Below the top viewD. Above the top view

Answer

A. To the right of the front view. In third-angle projection, the right-side view is placed to the right of the front view. (Engineering Drawing MCQ by Top100MCQ.com)

Question 25

Question 25: What type of view is used to show an object’s internal details?

A. Isometric viewB. Auxiliary viewC. Sectional viewD. Perspective view

Answer

C. Sectional view. Sectional views reveal internal features by cutting through an object. (Engineering Drawing MCQ by Top100MCQ.com)

Question 26

Question 26: Which line is used to represent the cutting plane in sectional views?

A. Hidden lineB. CenterlineC. Break lineD. Cutting plane line

Answer

D. Cutting plane line. Cutting plane lines show where the object is ‘cut’ to reveal internal details. (Engineering Drawing MCQ by Top100MCQ.com)

Question 27

Question 27: What is the key difference between first-angle and third-angle projections?

A. Number of views usedB. Placement of viewsC. Method of dimensioningD. Scale used

Answer

B. Placement of views. First-angle projection places views differently from third-angle projection. (Engineering Drawing MCQ by Top100MCQ.com)

Question 28

Question 28: In orthographic projection, which view typically shows the most detail?

A. Top viewB. Side viewC. Front viewD. Isometric view

Answer

C. Front view. The front view generally contains the most comprehensive details of the object. (Engineering Drawing MCQ by Top100MCQ.com)

Question 29

Question 29: Which of the following sections cuts the object completely in half?

A. Partial sectionB. Half sectionC. Full sectionD. Offset section

Answer

C. Full section. A full section cuts the object entirely to show all internal details. (Engineering Drawing MCQ by Top100MCQ.com)

Question 30

Question 30: What is the main purpose of hatching in sectional views?

A. To improve the visual appealB. To differentiate the material of the objectC. To indicate the direction of the cutD. To show the type of projection

Answer

C. To indicate the direction of the cut. Hatching represents areas where material is cut. (Engineering Drawing MCQ by Top100MCQ.com)

Question 31

Question 31: Which projection is commonly used to provide a three-dimensional view without perspective distortion?

A. OrthographicB. IsometricC. ObliqueD. Perspective

Answer

B. Isometric. Isometric projection shows a 3D view without perspective distortion, using equal angles for the axes. (Engineering Drawing MCQ by Top100MCQ.com)

Question 32

Question 32: In isometric projection, the angles between the projection axes are typically:

A. 30 degreesB. 45 degreesC. 60 degreesD. 90 degrees

Answer

A. 30 degrees. In isometric projection, the angles between the projection axes are each 120 degrees, but the drawing is angled at 30 degrees from the horizontal. (Engineering Drawing MCQ by Top100MCQ.com)

Question 33

Question 33: What is the purpose of an isometric scale?

A. To enlarge objectsB. To reduce objectsC. To maintain true dimensions along the axesD. To change the angle of projection

Answer

C. To maintain true dimensions along the axes. An isometric scale ensures that dimensions are proportionally correct in isometric projection. (Engineering Drawing MCQ by Top100MCQ.com)

Question 34

Question 34: Which type of axonometric projection has different scales along its three axes?

A. IsometricB. DimetricC. TrimetricD. Orthographic

Answer

C. Trimetric. Trimetric projection uses different scales for each axis, making it less uniform but allowing more realistic depth representation. (Engineering Drawing MCQ by Top100MCQ.com)

Question 35

Question 35: In a dimetric projection, how many axes share the same scale?

A. NoneB. OneC. TwoD. Three

Answer

C. Two. In dimetric projection, two axes share the same scale, while the third axis uses a different scale. (Engineering Drawing MCQ by Top100MCQ.com)

Question 36

Question 36: When converting orthographic views to isometric, what happens to the circular shapes?

A. They become squaresB. They remain circlesC. They become ellipsesD. They are removed

Answer

C. They become ellipses. Circles appear as ellipses in isometric projection due to the angle of view. (Engineering Drawing MCQ by Top100MCQ.com)

Question 37

Question 37: Which projection is commonly used for technical illustrations due to its realistic appearance?

A. DimetricB. IsometricC. TrimetricD. Oblique

Answer

A. Dimetric. Dimetric projection, with two equal angles, provides a realistic yet simplified 3D representation. (Engineering Drawing MCQ by Top100MCQ.com)

Question 38

Question 38: What is a major advantage of using isometric projection in engineering drawings?

A. It uses fewer views than orthographic projectionB. It eliminates the need for measurementsC. It allows direct comparison to photographsD. It provides a realistic 3D view

Answer

D. It provides a realistic 3D view. Isometric projection visually represents an object in 3D, making it easier to understand. (Engineering Drawing MCQ by Top100MCQ.com)

Question 39

Question 39: In a one-point perspective drawing, how many vanishing points are used?

A. OneB. TwoC. ThreeD. Four

Answer

A. One. One-point perspective uses a single vanishing point to create depth. (Engineering Drawing MCQ by Top100MCQ.com)

Question 40

Question 40: Which type of projection uses parallel lines and is often used for technical drawings of buildings?

A. ObliqueB. PerspectiveC. IsometricD. Orthographic

Answer

A. Oblique. Oblique projection uses parallel lines to create 3D depth and is often used in architectural drawings. (Engineering Drawing MCQ by Top100MCQ.com)

Question 41

Question 41: In a two-point perspective drawing, the vanishing points are located:

A. On the same side of the objectB. At the same pointC. On opposite sides of the objectD. Directly above the object

Answer

C. On opposite sides of the object. Two-point perspective uses two vanishing points, typically on opposite sides of the object. (Engineering Drawing MCQ by Top100MCQ.com)

Question 42

Question 42: What type of oblique projection has a 45-degree angle and shows depth at full scale?

A. CabinetB. CavalierC. IsometricD. Dimetric

Answer

B. Cavalier. Cavalier projection uses a 45-degree angle and shows depth at full scale, making it look distorted. (Engineering Drawing MCQ by Top100MCQ.com)

Question 43

Question 43: Which oblique projection reduces the depth scale to make the object appear more realistic?

A. CavalierB. CabinetC. IsometricD. Trimetric

Answer

B. Cabinet. Cabinet projection uses a 45-degree angle but reduces the depth scale to improve realism. (Engineering Drawing MCQ by Top100MCQ.com)

Question 44

Question 44: What is an exploded view commonly used for?

A. To show the finished appearance of an objectB. To illustrate assembly instructionsC. To create a realistic image of an objectD. To make the object appear larger

Answer

B. To illustrate assembly instructions. Exploded views show how components fit together. (Engineering Drawing MCQ by Top100MCQ.com)

Question 45

Question 45: Which perspective drawing technique uses three vanishing points to create a sense of height?

A. One-point perspectiveB. Two-point perspectiveC. Three-point perspectiveD. Oblique perspective

Answer

C. Three-point perspective. Three-point perspective adds a third vanishing point for height. (Engineering Drawing MCQ by Top100MCQ.com)

Question 46

Question 46: Which section type only cuts through part of an object?

A. Full sectionB. Half sectionC. Offset sectionD. Partial section

Answer

D. Partial section. A partial section only cuts through part of an object to reveal specific details. (Engineering Drawing MCQ by Top100MCQ.com)

Question 47

Question 47: Which section is used to show the symmetrical interior of an object?

A. Full sectionB. Half sectionC. Offset sectionD. Partial section

Answer

B. Half section. Half sections are used to display symmetrical interiors, showing half the object as solid and half as cut. (Engineering Drawing MCQ by Top100MCQ.com)

Question 48

Question 48: What type of section is useful for showing internal features that do not lie on a straight line?

A. Offset sectionB. Full sectionC. Partial sectionD. Auxiliary section

Answer

A. Offset section. Offset sections are used to show features that are not aligned, by offsetting the cutting plane. (Engineering Drawing MCQ by Top100MCQ.com)

Question 49

Question 49: In assembly drawings, what is typically indicated by an exploded view?

A. The final appearance of the productB. The sequence of parts assemblyC. The exact dimensions of each partD. The material of each component

Answer

B. The sequence of parts assembly. Exploded views help users understand how to assemble each component in sequence. (Engineering Drawing MCQ by Top100MCQ.com)

Question 50

Question 50: Which view is often used to indicate complex machinery parts that interconnect?

A. Sectional viewB. Auxiliary viewC. Assembly viewD. Detail view

Answer

C. Assembly view. Assembly views show how different parts fit together in complex machinery. (Engineering Drawing MCQ by Top100MCQ.com)

Question 51

Question 51: Which of the following is not typically shown in an exploded assembly drawing?

A. Internal featuresB. Order of assemblyC. Relative position of partsD. Fastening details

Answer

A. Internal features. Exploded views focus on part relationships and assembly sequence, not internal features. (Engineering Drawing MCQ by Top100MCQ.com)

Question 52

Question 52: What is the purpose of using hatching in a sectional view?

A. To add color to the drawingB. To represent hidden partsC. To indicate cut surfacesD. To highlight exterior features

Answer

C. To indicate cut surfaces. Hatching in sectional views shows where the object has been cut. (Engineering Drawing MCQ by Top100MCQ.com)

Question 53

Question 53: In assembly drawings, which component is represented with a break line?

A. ScrewB. ShaftC. NutD. Washer

Answer

B. Shaft. Break lines often represent shafts or other components too long to show in full. (Engineering Drawing MCQ by Top100MCQ.com)

Question 54

Question 54: What is the primary purpose of dimensioning in engineering drawings?

A. To improve the appearance of the drawingB. To define the size and location of featuresC. To show the material of the objectD. To highlight important features

Answer

B. To define the size and location of features. Dimensioning provides essential information about the size and geometry of an object. (Engineering Drawing MCQ by Top100MCQ.com)

Question 55

Question 55: Which type of dimensioning uses a common baseline or centerline for multiple dimensions?

A. Chain dimensioningB. Parallel dimensioningC. Baseline dimensioningD. Unidirectional dimensioning

Answer

C. Baseline dimensioning. Baseline dimensioning uses a common baseline to measure from, reducing errors in accumulation. (Engineering Drawing MCQ by Top100MCQ.com)

Question 56

Question 56: What is a unilateral tolerance?

A. A tolerance that applies in both directionsB. A tolerance that only applies in one directionC. A tolerance for angular dimensionsD. A tolerance for diameter dimensions

Answer

B. A tolerance that only applies in one direction. Unilateral tolerances allow variation only in one direction. (Engineering Drawing MCQ by Top100MCQ.com)

Question 57

Question 57: What does GD&T stand for in engineering drawings?

A. General Dimensioning and TolerancingB. Geometric Dimensioning and TolerancingC. Gradual Dimensioning and TolerancingD. Global Dimensioning and Tolerancing

Answer

B. Geometric Dimensioning and Tolerancing. GD&T is a system that defines and communicates engineering tolerances. (Engineering Drawing MCQ by Top100MCQ.com)

Question 58

Question 58: What does the symbol Ø represent in engineering drawings?

A. DiameterB. RadiusC. ThicknessD. Length

Answer

A. Diameter. The symbol Ø indicates the diameter of a circle or hole. (Engineering Drawing MCQ by Top100MCQ.com)

Question 59

Question 59: Which type of tolerance specifies upper and lower limits of size?

A. Unilateral toleranceB. Bilateral toleranceC. Limit toleranceD. Angular tolerance

Answer

C. Limit tolerance. Limit tolerance specifies both upper and lower acceptable size limits for a feature. (Engineering Drawing MCQ by Top100MCQ.com)

Question 60

Question 60: Which dimensioning system allows all dimensions to be read from the bottom of the drawing?

A. Aligned systemB. Unidirectional systemC. Angular systemD. Baseline system

Answer

B. Unidirectional system. In the unidirectional system, all dimensions are written so they can be read from the bottom of the drawing. (Engineering Drawing MCQ by Top100MCQ.com)

Question 61

Question 61: What is the primary advantage of using GD&T?

A. It simplifies drawings by eliminating dimensionsB. It provides precise control of form, orientation, and locationC. It increases the cost of manufacturingD. It only applies to complex parts

Answer

B. It provides precise control of form, orientation, and location. GD&T ensures better control over manufacturing tolerances. (Engineering Drawing MCQ by Top100MCQ.com)

Question 62

Question 62: In GD&T, what is the purpose of a datum?

A. To indicate the material usedB. To reference a point or surface for measurementsC. To show the scale of the drawingD. To highlight the most important feature

Answer

B. To reference a point or surface for measurements. Datums serve as the basis for measuring other features in GD&T. (Engineering Drawing MCQ by Top100MCQ.com)

Question 63

Question 63: What type of scale is used when a drawing is made smaller than the actual object?

A. Full scaleB. Reduced scaleC. Enlarged scaleD. Isometric scale

Answer

B. Reduced scale. Reduced scale is used to represent objects smaller than their actual size. (Engineering Drawing MCQ by Top100MCQ.com)

Question 64

Question 64: Which of the following is used to measure very small distances accurately?

A. Vernier scaleB. Plain scaleC. Diagonal scaleD. Full scale

Answer

A. Vernier scale. A vernier scale allows for precise measurement of small distances. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

B. A curve traced by a point on a circle rolling along a straight line. An involute is used in gear tooth design. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

C. Spiral. A spiral is generated by a point moving at a constant speed along a curve that continually increases its distance from the center. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

C. Enlarged scale. Enlarged scales are used to represent small objects at a larger size. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

C. Cycloid. Cycloid curves are commonly used in the design of cams and gears. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

C. To measure small distances accurately. Diagonal scales are used to measure minute dimensions with high precision. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

C. Rivet. Rivets are permanent fasteners commonly used in construction and mechanical applications. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

A. Bolt. Bolts are used for temporary joints because they can be removed and reused. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

B. To transmit torque between a shaft and a rotating element. Keys prevent relative motion between the two parts. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

B. Compression spring. Compression springs absorb energy and return to their original shape after being compressed. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

A. Universal coupling. Universal couplings allow for angular movement between two rotating shafts. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

D. Hexagon. A hexagon represents a bolt or nut in engineering drawings. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

B. To reduce friction between moving parts. Bearings allow for smooth rotation or linear movement in mechanical systems. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

B. Butt joint. Butt joints are commonly used in welding to join two components end-to-end. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

C. To unfold a 3D object into a 2D layout. Surface development shows the flat layout of a 3D object for fabrication. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

C. Cylinder. Cylinders are easier to develop because they unfold into a rectangle. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

C. Intersection line. Intersection lines indicate where two surfaces intersect or meet in a developed view. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

C. Parallel line development. Parallel line development is used to unfold the surfaces of prisms. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

C. An ellipse at the intersection. The intersection of two cylinders at right angles typically forms an elliptical curve. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

B. At the apex of the cone. Radial lines converge at the apex when unfolding a cone’s surface. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

D. Approximation method. Spheres are often developed using an approximation due to their curved surface. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

B. Computer Aided Design. CAD stands for Computer Aided Design, which is used for creating precise drawings and models. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

C. Circle tool. The circle tool in CAD software is used specifically to draw circles and arcs. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

B. To organize different elements of the drawing. Layers help organize and separate different parts of the drawing for easier editing and viewing. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

B. Rotate. The rotate command copies or moves an object around a specified pivot point at a given angle. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

B. Stretching a shape into the third dimension. Extrusion is the process of extending a 2D shape to create a 3D object. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

D. To ensure consistency and accuracy. CAD standards help maintain uniformity and accuracy in drawings. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

A. Array. The array feature duplicates objects in a specified pattern, creating multiple copies efficiently. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

A. A hidden feature. Dashed lines usually indicate hidden features or edges not directly visible in the view. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

D. Three horizontal lines with a descending line. This is the standard symbol for electrical grounding. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

C. Designer’s name, date, and drawing scale. Title blocks provide essential information about the drawing and its creator. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

B. To list all the symbols used in the drawing. Legends explain the meaning of symbols found in the blueprint. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

A. Zigzag line. Break lines often appear as zigzag lines to show where a section of the drawing is not included. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

C. The symmetry axis of an object. Centerlines indicate symmetry and often align with features like holes or shafts. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

C. To provide a layout of each floor’s rooms and features. Floor plans show the arrangement of spaces within a building. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

B. Chain line. Chain lines or thick solid lines with breaks indicate where an object is cut in sectional views. (Engineering Drawing MCQ by Top100MCQ.com)

Accepted Answer

B. To provide detailed manufacturing information for individual parts. Fabrication drawings give precise instructions on how to manufacture each part. (Engineering Drawing MCQ by Top100MCQ.com)

Topic	Concept	Quick Revision Points
Introduction to Engineering Drawing	Standards & Conventions	ISO, BIS standards; hidden lines (dashed), centerlines, solid lines; basic lettering for clarity in communication
	Purpose of Drawing	Communicates technical ideas and details accurately
Drawing Instruments and Materials	Tools	Compass (circles/arcs), T-square (horizontal lines), set squares (angles), protractor (measuring angles)
	Drawing Sheets	A4 size: 210 x 297 mm; Title block contains designer’s name, date, drawing scale, and revision history
Geometrical Constructions	Basic Shapes & Angles	Construct lines, angles, polygons, using a compass and protractor
	Curves & Conic Sections	Ellipse, parabola, hyperbola; Tangents connect curves; Conics define loci with fixed ratios
Orthographic Projection	Projection Types	First-angle (top below front), Third-angle (right side of front); Multiviews give comprehensive object details
	Sectional Views	Full (whole object), half (symmetrical interiors), partial (specific areas); Hatching shows cut surfaces
Isometric & Axonometric Projections	Isometric Projection	3D without distortion; 30° angles; Circles become ellipses
	Dimetric & Trimetric Projections	Dimetric: two axes same scale; Trimetric: all axes different scales
Pictorial Drawings	Perspective Projection	One-point (single vanishing point), Two-point (two vanishing points)
	Oblique Projection	Cavalier (depth full scale), Cabinet (depth half scale); shows depth realistically
	Exploded Views	Displays assembly sequence and part relationships for easy understanding
Sectional Views & Assembly Drawings	Section Types	Offset shows non-aligned features; Cutaway and exploded for assemblies
	Assembly Drawing	Shows mechanical part arrangement; Exploded view simplifies assembly process
Dimensioning & Tolerancing	Dimensioning Types	Linear, angular, radial; Baseline: common start point; Unidirectional for ease
	Tolerances & GD&T	Unilateral (one direction), Bilateral (both directions), GD&T symbols control form, orientation, and position
Scales & Engineering Curves	Scale Types	Full scale (1:1), Reduced scale (1:2), Enlarged scale (2:1); Vernier scales for precision
	Engineering Curves	Involute (gear design), Cycloid (cam design), Helix (threads), Spiral (constant distance increase from center)
Fasteners & Machine Elements	Types of Fasteners	Screws, bolts (temporary), rivets (permanent); Keys (torque transmission), Bearings (reduce friction)
	Joint Types	Butt joints (welding), Riveted joints for permanent fastening
Surface Development & Intersection	Surface Development	Unfold 3D to 2D layout; Cylinders develop into rectangles; Cones into sectors
	Intersection of Solids	Intersecting cylinders form ellipses; Developed for clarity in 3D modeling and fabrication
CAD in Engineering Drawing	CAD Basics	Computer Aided Design for precision, Extrude for 3D shapes, Array for multiple copies, Layers for organization
	CAD Standards	Layers, standards ensure consistency across designs, Rotate copies objects to specific angles
Blueprint Reading & Interpretation	Blueprint Symbols	Grounding (three lines with descending), Hidden features (dashed lines), Centerlines (long-short dashes)
	Reading Techniques	Title blocks (details), Section lines (cut locations), Floor plans (room layout)

Engineering Drawing MCQ

1. Introduction to Engineering Drawing (MCQ 1 to 5)

2. Drawing Instruments and Materials (MCQ 6 to 10)

3. Geometrical Constructions (MCQ 11 to 20)

4. Orthographic Projection (MCQ 21 to 30)

5. Isometric and Axonometric Projections (MCQ 31 to 38)

6. Pictorial Drawings (MCQ 39 to 45)

7. Sectional Views and Assembly Drawings (MCQ 46 to 53)

8. Dimensioning and Tolerancing (MCQ 54 to 62)

9. Scales and Engineering Curves (MCQ 63 to 69)

10. Fasteners and Machine Elements (MCQ 70 to 77)

11. Surface Development and Intersection of Solids (MCQ 78 to 84)

12. CAD in Engineering Drawing (MCQ 85 to 91)

13. Blueprint Reading and Interpretation (MCQ 92 to 100)

Most Asked Questions: Engineering Drawing MCQ

What is the primary purpose of engineering drawing?

Why are different line types used in technical drawings?

What is orthographic projection, and how is it used?

What is the primary purpose of dimensioning in engineering drawings?

What does CAD stand for, and what is its purpose?

Quick Revision: Engineering Drawing MCQ

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