# Multiple choice question for engineering

## Set 1

1. An equilateral triangle of side 10 cm is held parallel to horizontal plane and base is parallel to xy reference line. The length of line from front view will be _____

a) 8.66 cm

b) 10 cm

c) 0 cm

d) 12.47 cm

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2. A square of side 10 cm is held parallel to vertical plane and one diagonal is perpendicular to xy reference plane. The length of line in top view will be ________

a) 10 cm

b) 14.14 cm

c) 7.07 cm

d) 0 cm

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^{2}+5

^{2}) = 14.14 cm.

3. A hexagon is placed parallel to vertical plane which of the following projection is true?

a) Front view-line, top view- hexagon

b) Front view- hexagon, top view- line

c) Front view –line, top view-line

d) Top view- hexagon, side view- line

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4. A pentagon is placed parallel to horizontal plane which of the following projection is true?

a) Front view-line, top view- pentagon

b) Front view- pentagon, top view- line

c) Front view –line, top view-line

d) Top view- line, side view- line

### View Answer

5. A rectangle is placed parallel to profile plane which of the following projection is true?

a) Front view-line, top view- rectangle

b) Front view- rectangle, top view- line

c) Front view –line, top view-line

d) Top view- rectangle, side view- line

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6. A circle is placed parallel to vertical plane which of the following projection is false?

a) Front view-circle, top view- line

b) Length in top view and side view will be same

c) Circle is perpendicular to horizontal plane

d) The traces of plane containing this circle intersect at xy reference line

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7. An ellipse is placed parallel to vertical plane which of the following projection is false?

a) Front view-ellipse, top view- line

b) Length in top view and side view will be same

c) Ellipse is perpendicular to horizontal plane

d) The traces of plane containing this circle will not intersect at xy reference line

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8. While drawing projections if a triangle is parallel to horizontal plane, top should be drawn first and projections are drawn to it to get front view.

a) True

b) False

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9. If a plane is parallel to one of the reference plane then the projection onto the other reference planes would be a line.

a) True

b) False

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10. An equilateral triangle of side 10 cm is held parallel to horizontal plane and base is parallel to xy reference line. The length of line from side view will be _____

a) 8.66 cm

b) 10 cm

c) 0 cm

d) 12.47 cm

### View Answer

11. A square of side 10 cm is held parallel to vertical plane and one diagonal is making 45 degrees with xy reference plane. The length of line in top view will be ________

a) 10 cm

b) 14.14 cm

c) 7.07 cm

d) 0 cm

### View Answer

12. The top view, front view and side view of a triangle parallel to vertical plane, circle parallel to profile plane and rectangle parallel to horizontal plane respectively are ___________

a) line, circle, line

b) triangle, line, rectangle

c) triangle, line, line

d) line, line, line

### View Answer

## Set 2

1. Which of the following is not the definition of center of gravity?

a) A point on which whole weight if body balances

b) A point through which the resultant of forces of gravity of every particle in body acts

c) It is also called center of mass

d) The point in the body where the gravity becomes zero

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2. The center of gravity of a triangle is on ______

a) centroid

b) circum center

c) in center

d) ortho center

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3. Given steps in procedure to find the center of gravity of the quadrilateral ABCD. Arrange the steps.

i. Draw lines joining G1 with G2 and G3 with G4.

ii. In given quadrilateral draw diagonal BD and locate centers of gravity G1, G2 of triangles BCD and ABD.

iii. The point of intersection of lines G1G2 and G3G4 gives the center of gravity of the quadrilateral ABCD.

iv. Similarly draw the diagonal AC and determine the centers of gravity G3, G4 of triangles ABC and ADC.

a) i, ii, iii, iv

b) ii, iv, i, iii

c) iii, iv, i, ii

d) iv, i, ii, iii

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4. Given steps in procedure to find the center of gravity of the trapezium ABCD. Arrange the steps.

i. Join E and F which intersects the line PQ at G. G is center of gravity.

ii. Similarly produce CD to a point F so that FD=AB.

iii. Draw a line joining the midpoints P and Q of the parallel sides AB and DC respectively.

iv. Produce AB to a point E so that BE=DC.

a) i, ii, iii, iv

b) ii, iv, i, iii

c) iii, iv, ii, i

d) iii, i, ii, iv

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5. The center of gravity of an equilateral triangle is on its circum center.

a) True

b) False

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6. The center of gravity of a circular ring will be a ______________

a) line which acts as axis of that ring

b) point anywhere in its inner circumference

c) point at center of ring

d) point on centroid of cross section of ring

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7. For symmetrical objects the center of gravity lies at intersection of axes.

a) True

b) False

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8. The center of gravity of a right angled triangle having h as height and b as base length and vertex at 90 degrees is at origin.

a) (h/3,b/3)

b) (b/4,h/4)

c) (b/3,h/3)

d) (h/2,b/2)

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9. Which of the following game make use of center of gravity?

a) Caroms

b) Seesaw

c) Tic-Tac-Toe

d) Swing

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10. The center of gravity of a rectangle having h as height and w as width, one of its vertex is origin and its width is along x-axis is _____________

a) (w/3,h/3)

b) (w/4,h/4)

c) (h/2,w/2)

d) (w/2,h/2)

### View Answer

## Set 3

1. The commands Erase, Copy, Mirror, Trim, Extend, Break etc belongs to which tool bar?

a) Layer tool bar

b) Style tool bar

c) Modify tool bar

d) Draw tool bar

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2. The commands Donut, Block, Spline, Polygon, and Arc etc belong to which tool bar?

a) Layer tool bar

b) Style tool bar

c) Modify tool bar

d) Draw tool bar

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3. The command which works on two lines or a single poly line to create a beveled edge is __________

a) Chamfer

b) Fillet

c) Stretch

d) Extend

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4. The command which is used to create a round corner between two lines is __________

a) Chamfer

b) Fillet

c) Stretch

d) Extend

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5. The command ‘Oops’ is used to ______________

a) create one or more copies of selected objects at another location

b) creates mirror image of selected objects about specified line

c) retrieves all objects erased by the last erase

d) deletes the selected entities

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6. The command ‘pedit’ is used for _______________

a) erases a portion of line, arc, circle or a 2D poly line between two selected points

b) reverses the effects of a series of previously used commands

c) breaking a poly line into individual segments

d) editing of poly line properties

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7. The command ‘break’ is used for ____________________

a) erases a portion of line, arc, circle or a 2D poly line between two selected points

b) reverses the effects of a series of previously used commands

c) breaking a poly line into individual segments

d) editing of poly line properties

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8. The command ‘U’ is used for _____________________

a) erases a portion of line, arc, circle or a 2D poly line between two selected points

b) reverses the effects of a series of previously used commands

c) breaking a poly line into individual segments

d) editing of poly line properties

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9. The command ‘Explode’ is used for _________________________

a) erases a portion of line, arc, circle or a 2D poly line between two selected points

b) reverses the effects of a series of previously used commands

c) breaking a poly line into individual segments

d) editing of poly line properties

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10. The command which is used to set a new coordinate system by shifting the working XY plane to be desired location is?

a) 3DFACE

b) VPOINT

c) UCS

d) ELEV

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11. The command which is used for making planar unmeshed surfaces that have three or four sides is ______________

a) 3DFACE

b) VPOINT

c) UCS

d) ELEV

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12. The command which is used to set the viewpoint in 3D space for viewing the 3D models is _____________

a) 3DFACE

b) VPOINT

c) UCS

d) ELEV

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13. The command which is used to set elevation and thickness properties for 2D wireframe objects such as line, point, circle, polygon, arc is ____________

a) 3DFACE

b) VPOINT

c) UCS

d) ELEV

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14. The command which identifies the points on drawing entities that are visible on screen is ________ and this option allows the user to pick-up the points very accurately with respect to drawing displayed.

a) OSNAP

b) TABSURF

c) SNAP

d) GRID

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## Set 4

1. ___________ is a curve generated by a point fixed to a circle, within or outside its circumference, as the circle rolls along a straight line.

a) Cycloid

b) Epicycloid

c) Epitrochoid

d) Trochoid

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2. ___________ is a curve generated by a point on the circumference of a circle, which rolls without slipping along another circle outside it.

a) Trochoid

b) Epicycloid

c) Hypotrochoid

d) Involute

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3. __________ is a curve generated by a point on the circumference of a circle which rolls without slipping on a straight line.

a) Trochoid

b) Epicycloid

c) Cycloid

d) Evolute

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4. When the circle rolls along another circle inside it, the curve is called a __________

a) Epicycloid

b) Cycloid

c) Trochoid

d) Hypocycloid

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5. Match the following

1. | Generating point is within the circumference of circle and generating circle rolls on straight line. | i. | Inferior trochoid |
---|---|---|---|

2. | Generating point is on the circumference of circle and generating circle rolls on straight line. | ii. | Epicycloid |

3. | Generating point is outside the circumference of circle and generating circle rolls on straight line. | iii. | Cycloid |

4. | Generating point is on the circumference of circle and generating circle rolls along another circle outside it. | iv. | Superior trochoid |

a) 1, i; 2, iii; 3, iv; 4, ii

b) 1, ii; 2, iii; 3, i; 4, iv

c) 1, ii; 2, iv; 3, iii; 4, i

d) 1, iv; 2, iii; 3, ii; 4, i

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6. Match the following

1. | Generating point is within the circumference of circle and generating circle rolls on another circle outside it | i. | Superior Epitrochoid |

2. | Generating point is within or outside the circumference of circle and generating circle rolls inside another circle. | ii. | Inferior Epitrochoid |

3. | Generating point is outside the circumference of circle and generating circle rolls on another circle outside it. | iii. | Hypotrochoid |

4. | Generating point is on the circumference of circle and generating circle rolls along another circle inside it. | iv. | Hypocycloid |

a) 1, i; 2, iii; 3, iv; 4, ii

b) 1, ii; 2, iii; 3, i; 4, iv

c) 1, ii; 2, iv; 3, iii; 4, i

d) 1, iv; 2, iii; 3, ii; 4, i

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7. Steps are given to find the normal and tangent for a cycloid. Arrange the steps if C is the centre for generating circle and PA is the directing line. N is the point on cycloid.

i. Through M, draw a line MO perpendicular to the directing line PA and cutting at O.

ii. With centre N and radius equal to radius of generating circle, draw an arc cutting locus of C at M.

iii. Draw a perpendicular to ON at N which is tangent.

iv. Draw a line joining O and N which is normal.

a) iii, i, iv, ii

b) ii, i, iv, iii

c) iv, ii, i, iii

d) i, iv, iii, ii

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8. Steps are given to find the normal and tangent to an epicycloid. Arrange the steps if C is the centre for generating circle and O is the centre of directing cycle. N is the point on epicycloid.

i. Draw a line through O and D cutting directing circle at M.

ii. Draw perpendicular to MN at N. We get tangent.

iii. With centre N and radius equal to radius of generating circle, draw an arc cutting the locus of C at D.

iv. Draw a line joining M and N which is normal.

a) iii, i, iv, ii

b) ii, i, iv, iii

c) iv, ii, i, iii

d) i, iv, iii, ii

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9. The generating circle will be inside the directing circle for _________

a) Cycloid

b) Inferior trochoid

c) Inferior epitrochoid

d) Hypocycloid

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10. The generating point is outside the generating circle for____________

a) Cycloid

b) Superior Trochoid

c) Inferior Trochoid

d) Epicycloid

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## Set 5

1. Which of the following is incorrect about Ellipse?

a) Eccentricity is less than 1

b) Mathematical equation is X^{2} /a^{2} + Y^{2}/b^{2} = 1

c) If a plane is parallel to axis of cone cuts the cone then the section gives ellipse

d) The sum of the distances from two focuses and any point on ellipse is constant

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2. Which of the following constructions doesn’t use elliptical curves?

a) Cooling towers

b) Dams

c) Bridges

d) Man-holes

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3. The line which passes through the focus and perpendicular to major axis is ________

a) Minor axis

b) Latus rectum

c) Directrix

d) Tangent

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4. Which of the following is the eccentricity for ellipse?

a) 1

b) 3/2

c) 2/3

d) 5/2

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5. Axes are called conjugate axes when they are parallel to the tangents drawn at their extremes.

a) True

b) False

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6. Steps are given to draw an ellipse by loop of the thread method. Arrange the steps.

i. Check whether the length of the thread is enough to touch the end of minor axis.

ii. Draw two axes AB and CD intersecting at O. Locate the foci F1 and F2.

iii. Move the pencil around the foci, maintaining an even tension in the thread throughout and obtain the ellipse.

iv. Insert a pin at each focus-point and tie a piece of thread in the form of a loop around the pins.

a) i, ii, iii, iv

b) ii, iv, i, iii

c) iii, iv, i, ii

d) iv, i, ii, iii

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7. Steps are given to draw an ellipse by trammel method. Arrange the steps.

i. Place the trammel so that R is on the minor axis CD and Q on the major axis AB. Then P will be on ellipse.

ii. Draw two axes AB and CD intersecting each other at O.

iii. By moving the trammel to new positions, always keeping R on CD and Q on AB, obtain other points and join those to get ellipse.

iv. Along the edge of a strip of paper which may be used as a trammel, mark PQ equal to half the minor axis and PR equal to half of major axis.

a) i, ii, iii, iv

b) ii, iv, i, iii

c) iii, iv, i, ii

d) iv, i, ii, iii

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8. Steps are given to draw a normal and a tangent to the ellipse at a point Q on it. Arrange the steps.

i. Draw a line ST through Q and perpendicular to NM.

ii. ST is the required tangent.

iii. Join Q with the foci F1 and F2.

iv. Draw a line NM bisecting the angle between the lines drawn before which is normal.

a) i, ii, iii, iv

b) ii, iv, i, iii

c) iii, iv, i, ii

d) iv, i, ii, iii

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9. Which of the following is not belonged to ellipse?

a) Latus rectum

b) Directrix

c) Major axis

d) Asymptotes