Q1. The primary purpose of an engineering drawing is to:

A. Communicate design information accurately B. Decorate the component C. Replace all calculations D. Show only the material colour

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: It communicates geometry, dimensions, tolerances and manufacturing information accurately.

Q2. Which line type is normally used for visible outlines?

A. Continuous thin line B. Continuous thick line C. Dashed thin line D. Chain thin line

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: Visible edges are represented by continuous thick lines in standard engineering drawing practice.

Q3. Hidden edges are generally represented by:

A. Continuous thick lines B. Freehand lines C. Dashed thin lines D. Double-dotted thick lines

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: Dashed thin lines indicate edges that are not directly visible.

Q4. Centre lines are commonly represented by:

A. Thick continuous lines B. Short zigzag lines C. Double thick lines D. Thin chain lines

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: Centre lines use thin chain line convention to identify axes and centres.

Q5. A dimension line normally terminates in:

A. Arrowheads B. Circles only C. Freehand loops D. Hatching

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: Arrowheads define the limits of the dimension being indicated.

Q6. The representative fraction (RF) of a scale is:

A. Actual length / drawing length only B. Length on drawing / corresponding actual length C. Drawing area / actual area D. Actual volume / drawing volume

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: RF is the ratio of drawing length to corresponding actual length in the same units.

Q7. A scale with RF less than 1 is called a:

A. Enlarging scale B. Full-size scale C. Reducing scale D. Perspective scale

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: RF below unity means the drawing is smaller than the actual object.

Q8. Which instrument is primarily used to draw circles and arcs?

A. Divider B. T-square C. Set square D. Compass

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: A compass is designed to draw circles and circular arcs.

Q9. The standard reference line separating HP and VP is called:

A. XY line B. AB line C. MN line D. PP line

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: The XY reference line represents the intersection of the horizontal and vertical planes.

Q10. A dimension written without a unit in a metric drawing is generally understood as:

A. Metres B. Millimetres C. Centimetres D. Inches

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: Engineering drawings commonly use millimetres unless another unit is specified.

Q11. The perpendicular bisector of a line segment passes through its:

A. Endpoint only B. Any random point C. Midpoint D. Intersection with the XY line only

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: Every point on a perpendicular bisector is equidistant from the segment endpoints; it passes through the midpoint.

Q12. To bisect an angle using compass construction, arcs are first drawn from the:

A. Midpoint of the opposite side B. XY line C. Paper corner D. Vertex

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: An arc centred at the angle vertex cuts both arms; equal arcs then locate the bisector.

Q13. A regular hexagon inscribed in a circle has each side equal to the:

A. Radius of the circle B. Diameter of the circle C. Half the diameter plus radius D. Circumference

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: For a regular hexagon, each side subtends 60° and equals the circle radius.

Q14. The sum of interior angles of a quadrilateral is:

A. 180° B. 360° C. 270° D. 540°

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: A quadrilateral can be divided into two triangles, giving 2 × 180° = 360°.

Q15. The interior angle of a regular pentagon is:

A. 72° B. 90° C. 108° D. 120°

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: Interior angle = (n−2)180°/n = 3×180°/5 = 108°.

Q16. A tangent to a circle is perpendicular to the:

A. Diameter at any point B. Chord at its midpoint always C. Circumference everywhere D. Radius at the point of contact

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: The radius drawn to the point of contact is normal to the tangent.

Q17. An ellipse has eccentricity:

A. Less than 1 B. Equal to 1 C. Greater than 1 D. Always zero

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: For an ellipse, eccentricity e is less than one.

Q18. A parabola is defined by eccentricity equal to:

A. 0 B. 1 C. Less than 1 D. Greater than 1

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: A parabola has equal distances from its focus and directrix, hence e = 1.

Q19. The locus of a point equidistant from a fixed point is a:

A. Parabola B. Straight line only C. Circle D. Ellipse always

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: A circle is the locus of points at a constant distance from a fixed centre.

Q20. The involute of a circle can be generated by:

A. Rolling a circle inside a circle B. Projecting a point onto a plane C. Joining random radial points D. Unwinding a taut string from the circle

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: An involute is traced by the endpoint of a taut string as it is unwound from a base curve.

Q21. In orthographic projection, projectors are:

A. Parallel and perpendicular to the plane of projection B. Converging toward one point C. Parallel and inclined at 45° always D. Curved

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: Orthographic projectors are parallel to one another and normal to the projection plane.

Q22. A point above HP and in front of VP lies in the:

A. Second quadrant B. First quadrant C. Third quadrant D. Fourth quadrant

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: Above HP and in front of VP defines the first quadrant.

Q23. For a point in the first quadrant, its front view is located:

A. Below XY B. On VP only C. Above XY D. At infinity

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: A point above HP projects above XY in the front view.

Q24. For a point in the first quadrant, its top view is located:

A. Above XY B. On the front view C. At infinity D. Below XY

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: A point in front of VP has its top view below XY in first-angle convention.

Q25. A point below HP and behind VP lies in the:

A. Third quadrant B. First quadrant C. Second quadrant D. Fourth quadrant

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: Below HP and behind VP corresponds to the third quadrant.

Q26. The distance of a point from HP is represented in its:

A. Top view only B. Front view C. Isometric view only D. Perspective view only

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: The front view shows the height or distance from HP.

Q27. The distance of a point from VP is represented in its:

A. Front view only B. Side view only C. Top view D. Section view only

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: The top view represents the distance from VP.

Q28. The locus of the front view of a point at constant height is:

A. A circle centred at XY B. A vertical ellipse always C. A random curve D. A line parallel to XY

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: Constant height keeps the front-view distance from XY constant, producing a parallel locus.

Q29. The two views of a point are connected by:

A. A common projector B. A dimension line only C. A hidden line only D. A tangent

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: Front and top views of the same point lie on the same projector.

Q30. A point on HP has its front view:

A. Always above XY B. On XY C. Always below XY D. At the origin

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: Points on HP have zero height, so their front views lie on XY.

Q31. A line parallel to HP and inclined to VP shows true length in:

A. Front view B. Neither view C. Top view D. Section view only

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: A line parallel to HP is not foreshortened in top view.

Q32. A line parallel to VP and inclined to HP shows true length in:

A. Top view B. Neither view C. Auxiliary view only D. Front view

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: A line parallel to VP is represented at true length in front view.

Q33. A line perpendicular to HP appears as a:

A. Point in top view B. True-length line in top view C. Circle in top view D. Horizontal line in top view

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: All points have the same top-view location when the line is normal to HP.

Q34. A line perpendicular to VP appears as a:

A. True-length line in front view B. Point in front view C. Circle in front view D. Diagonal line always

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: All points of a line normal to VP project to one point in front view.

Q35. If a line is parallel to both HP and VP, its projections are:

A. Both points B. Always perpendicular to XY C. Parallel to XY and show true length D. Circular

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: The line is parallel to both reference planes, so both principal views show true length.

Q36. The apparent length of an inclined line is generally:

A. Always greater than true length B. Always twice the true length C. Independent of inclination D. Less than or equal to its true length

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: Projection causes foreshortening; it cannot exceed true length.

Q37. The angle made by a line with HP is called its:

A. True inclination with HP B. Azimuth only C. Bearing of plane D. Trace angle only

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: The true inclination is the angle between the line and HP.

Q38. To obtain the true length of a line inclined to both HP and VP, one may use:

A. Only hatching B. Rotation or auxiliary-view method C. Only lettering D. Only dimensioning

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: Rotation and auxiliary projection methods reveal the true length.

Q39. The horizontal trace of a line is the point where it meets:

A. VP only B. Profile plane only C. HP D. The XY line necessarily

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: The horizontal trace is the intersection of the line with HP.

Q40. The vertical trace of a line is the point where it meets:

A. HP only B. The drawing border C. The profile plane only D. VP

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: The vertical trace is the intersection of the line with VP.

Q41. A plane parallel to HP appears in true shape in:

A. Top view B. Front view C. Side view always D. Perspective view only

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: A plane parallel to HP is not foreshortened in its top projection.

Q42. A plane parallel to VP appears in true shape in:

A. Top view B. Front view C. Bottom view only D. Auxiliary view only

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: A plane parallel to VP is seen in true shape in front view.

Q43. A plane perpendicular to HP appears as an:

A. True shape in top view B. Circle always C. Edge view in top view D. Invisible feature

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: A plane normal to HP projects as a line in top view.

Q44. A plane inclined to HP and perpendicular to VP appears as a line in:

A. Top view always B. Both views as circles C. Neither view D. Front view

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: Perpendicularity to VP makes the front projection an edge view.

Q45. The true shape of an inclined plane is obtained using:

A. Auxiliary projection or rotation B. Only the front view C. Only centre lines D. Only a compass

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: Auxiliary or rotational methods place the plane parallel to a projection plane.

Q46. A circular lamina parallel to HP appears in front view as a:

A. Circle B. Straight line C. Ellipse always D. Triangle

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: Its front projection is an edge view, represented by a line equal to the diameter.

Q47. A circular lamina parallel to VP appears in top view as a:

A. Circle B. Square C. Straight line D. Parabola

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: Its top projection is an edge view.

Q48. The apparent shape of a plane inclined to the projection plane is generally:

A. Enlarged B. Unchanged in all cases C. Always circular D. Foreshortened

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: Inclination reduces the projected area and causes foreshortening.

Q49. A plane having no inclination to HP is:

A. Parallel to HP B. Perpendicular to HP C. Inclined at 45° D. A profile plane necessarily

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: Zero inclination to HP means parallelism with HP.

Q50. A plane perpendicular to both HP and VP is parallel to:

A. XY line only B. Profile plane C. Ground plane only D. Neither reference plane

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: A plane normal to HP and VP is parallel to the profile plane.

Q51. A solid with two equal and parallel polygonal ends is a:

A. Pyramid B. Cone C. Prism D. Sphere

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: A prism has equal, parallel bases connected by lateral faces.

Q52. A solid with one polygonal base and triangular faces meeting at a vertex is a:

A. Prism B. Cylinder C. Torus D. Pyramid

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: A pyramid has a base and triangular lateral faces converging at an apex.

Q53. A cylinder is generated by moving a:

A. Rectangle or line segment around/along an axis depending on construction B. Triangle around a random point only C. Circle along a curved path only D. Pentagon around a corner

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: A right circular cylinder can be viewed as a rectangle revolved about one of its sides.

Q54. A cone has:

A. Two polygonal bases B. One circular base and one apex C. Two apices D. No curved surface

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: A cone consists of one circular base and a single apex.

Q55. When the axis of a cylinder is perpendicular to HP, its top view is generally a:

A. Rectangle B. Triangle C. Circle D. Single point always

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: The circular base is parallel to HP and appears in true shape.

Q56. When the axis of a prism is perpendicular to HP, its top view shows the:

A. True length of its axis only B. A circle always C. Only hidden edges D. True shape of its base

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: The base is parallel to HP and is seen in true shape.

Q57. For a solid resting on HP, the contact points with HP are shown in:

A. Top view according to the base orientation B. Front view only C. Neither view D. A perspective view only

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: The top view represents the footprint and orientation of the base on HP.

Q58. A solid of revolution is generated by revolving a plane area about:

A. A random external point only B. An axis in its plane C. The XY line only D. A dimension line

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: Revolution of a plane area around an axis produces a solid of revolution.

Q59. The axis of a right circular cone passes through:

A. Only the circumference B. A tangent point only C. The centre of the base and apex D. Any point on the base

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: The cone axis joins the apex to the centre of its circular base.

Q60. In projection of solids, the first step for an inclined axis is commonly to draw:

A. Only the final hidden lines B. Only the title block C. Only the section hatching D. The solid in a simple position

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: The simple-position view is used before rotating the solid to the required inclination.

Q61. The angle between any two isometric axes is:

A. 120° B. 90° C. 60° D. 45°

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: The three isometric axes are separated by 120° in the plane of the drawing.

Q62. The two receding isometric axes are usually drawn at:

A. 15° to the horizontal B. 30° to the horizontal C. 60° to the horizontal D. 90° to the horizontal

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: The left and right isometric axes are conventionally inclined 30° to the horizontal.

Q63. In true isometric projection, lengths are:

A. Unforeshortened along all axes B. Foreshortened only vertically C. Foreshortened equally along the three axes D. Randomly scaled

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: All three principal directions have the same isometric foreshortening.

Q64. An isometric scale is used to:

A. Measure angles only B. Draw hidden lines only C. Find material density D. Convert true lengths to isometric projected lengths

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: The isometric scale gives the reduced lengths used in isometric projection.

Q65. In an isometric view (not projection), measurements along isometric axes are generally:

A. Taken at true scale B. Always reduced by 0.816 C. Always doubled D. Not possible

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: An isometric view is commonly drawn using true lengths, unlike an isometric projection.

Q66. A circle on an isometric plane is represented approximately by a(n):

A. Parabola B. Ellipse C. Triangle D. Straight line in every orientation

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: A circle appears as an ellipse when viewed obliquely in isometric representation.

Q67. A vertical edge in an isometric drawing is normally drawn:

A. At 30° to horizontal B. Horizontally C. Vertically D. At 60° to vertical

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: Vertical edges remain vertical in standard isometric drawing.

Q68. A line parallel to one of the isometric axes is called:

A. Non-isometric line B. Hidden line only C. Construction arc D. Isometric line

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: Lines parallel to the three isometric axes are isometric lines.

Q69. A line not parallel to any isometric axis is called:

A. Non-isometric line B. Isometric line C. Centre line only D. Reference line

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: Non-isometric lines require coordinate or end-point methods for construction.

Q70. For a cube in isometric projection, the visible faces are generally:

A. Three circles B. Three rhombus-like parallelograms C. Two triangles and one circle D. One rectangle only

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: The three visible square faces project as equal parallelogram-like faces.

Q71. In first-angle projection, the object is located:

A. Behind both planes B. Between HP and VP only C. Between observer and plane of projection D. Outside the projection system

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: First-angle projection places the object between the observer and the projection plane.

Q72. In third-angle projection, the projection plane is located:

A. Behind the observer B. Below HP only C. Inside the object D. Between observer and object

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: Third-angle projection places the plane between the observer and object.

Q73. In first-angle projection, the top view is placed:

A. Below the front view B. Above the front view C. To the right always D. On the front view

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: After rotating HP downward, the top view appears below the front view.

Q74. In third-angle projection, the top view is placed:

A. Below the front view B. Above the front view C. To the left always D. At the bottom border

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: In third-angle projection, the top view is placed above the front view.

Q75. In first-angle projection, the right-side view is placed:

A. On the right side B. Above the front view always C. On the left side of the front view D. Below the top view always

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: The side-view positions are reversed relative to the viewing direction in first-angle projection.

Q76. In third-angle projection, the right-side view is placed:

A. On the left side B. Below the front view C. On the XY line only D. On the right side of the front view

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: Third-angle projection places the right-side view on the right.

Q77. The projection method commonly used in India for engineering drawings is:

A. First-angle projection B. Third-angle projection only C. Oblique projection only D. Perspective projection only

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: First-angle projection is widely prescribed in Indian engineering drawing practice.

Q78. The symbol for orthographic projection convention is used to indicate:

A. Material hardness B. The projection method C. Surface roughness only D. Scale type only

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: The frustum-and-circle symbol identifies first-angle or third-angle convention.

Q79. In first-angle projection, the left-side view is placed:

A. On the left side B. Above the front view C. On the right side of the front view D. Below the XY line only

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: First-angle projection reverses the side-view placement.

Q80. A major reason for specifying first- or third-angle projection is to:

A. Increase object weight B. Specify colour C. Replace dimensions D. Avoid ambiguity in view arrangement

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: The convention ensures that users interpret view positions consistently.

Q81. A line of true length 100 mm makes 30° with HP and is parallel to VP. Its front-view length is:

A. 100 mm B. 50 mm C. 86.6 mm D. 70.7 mm

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: Because the line is parallel to VP, its front view shows true length.

Q82. A line of true length 100 mm makes 30° with VP and is parallel to HP. Its top-view length is:

A. 50 mm B. 100 mm C. 86.6 mm D. 70.7 mm

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: Because the line is parallel to HP, its top view shows true length.

Q83. The projection of a 100 mm line inclined at 30° to the projection plane has length:

A. 100 mm B. 50 mm C. 86.6 mm D. 70.7 mm

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: Projected length = true length × cos 30° = 100 × 0.866 = 86.6 mm.

Q84. The projection of a 100 mm line inclined at 60° to the projection plane has length:

A. 86.6 mm B. 100 mm C. 70.7 mm D. 50 mm

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: Projected length = 100 × cos 60° = 50 mm.

Q85. A regular polygon has each exterior angle equal to 45°. Number of sides is:

A. 8 B. 6 C. 10 D. 12

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: Number of sides = 360°/45° = 8.

Q86. The interior angle of a regular hexagon is:

A. 60° B. 120° C. 90° D. 108°

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: Interior angle = (6−2)×180°/6 = 120°.

Q87. A circle of diameter 40 mm is drawn at true scale. Its radius is:

A. 40 mm B. 80 mm C. 20 mm D. 10 mm

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: Radius is half the diameter: 40/2 = 20 mm.

Q88. For a cylinder of radius 20 mm, the circumference used in lateral development is approximately:

A. 62.83 mm B. 40 mm C. 251.33 mm D. 125.66 mm

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: Circumference = 2πr = 2π×20 ≈ 125.66 mm.

Q89. The area of a rectangle 80 mm × 50 mm is:

A. 4000 mm² B. 130 mm² C. 2000 mm² D. 8000 mm²

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: Area = length × breadth = 80×50 = 4000 mm².

Q90. If a drawing length is 25 mm and actual length is 100 mm, RF is:

A. 4 B. 1/4 C. 1/2 D. 1/100

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: RF = drawing length/actual length = 25/100 = 1/4.

Q91. Which pencil grade is generally harder and produces a lighter line?

A. 6B B. 4B C. 2H D. HB only

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: H-grade pencils are harder and produce lighter, finer lines.

Q92. A leader line is used primarily to:

A. Show a cutting plane only B. Represent a hidden edge C. Draw a border D. Connect a note or dimension to a feature

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: Leader lines connect explanatory text or dimensions to the relevant feature.

Q93. The exterior angle of a regular octagon is:

A. 45° B. 30° C. 60° D. 90°

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: Exterior angle = 360°/8 = 45°.

Q94. A regular triangle constructed with a compass has each interior angle equal to:

A. 45° B. 60° C. 90° D. 120°

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: All angles of an equilateral triangle are 60°.

Q95. A point behind VP has its top view located:

A. Below XY always B. On HP only C. Above XY in first-angle representation D. At the origin always

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: Behind VP places the top view above XY under the usual first-angle convention.

Q96. If a line is parallel to HP, its front view is:

A. Perpendicular to XY always B. A circle C. A point always D. Parallel to XY

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: All points of a line parallel to HP have the same height, so the front view is parallel to XY.

Q97. A plane parallel to the profile plane appears in true shape in:

A. Side view B. Front view only C. Top view only D. No view

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: A profile-plane-parallel plane is seen without foreshortening in the side view.

Q98. The top view of a sphere in orthographic projection is a:

A. Square B. Circle C. Triangle D. Ellipse always

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: A sphere projects as a circle of diameter equal to its true diameter in every principal view.

Q99. Hidden edges in an isometric drawing, when required, are represented using:

A. Thick continuous lines B. Double centre lines C. Dashed thin lines D. Freehand arcs

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: Hidden features follow the hidden-line convention even in an isometric drawing.

Q100. In third-angle projection, the left-side view is placed:

A. On the right side B. Below the front view C. Above the top view always D. On the left side of the front view

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: Third-angle projection places each side view on the same side as the viewing direction.