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480+ Engineering Graphics Solved MCQs

These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Civil Engineering .

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101.

The 4th quadrant is in which position?

A. below h.p, behind v.p
B. above h.p, behind v.p
C. above h.p, in-front of v.p
D. below h.p, in-front of v.p
Answer» D. below h.p, in-front of v.p
Explanation: the position of reference planes will be similar to quadrants in x, y plane co-ordinate system. as the 4th quadrant lies below the x-axis and in front of the y-axis here also the 4th quadrant is below h.p, in front of v.p.
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102.

The 1st quadrant is in which position?

A. below h.p, behind v.p
B. above h.p, behind v.p
C. above h.p, in-front of v.p
D. below h.p, in-front of v.p
Answer» C. above h.p, in-front of v.p
Explanation: the position of reference planes will be similar to quadrants in x, y
discuss
103.

The position of the views with respect to the reference line will not change according to the quadrant in which the object may be situated.

A. true
B. false
Answer» B. false
Explanation: the position of the views with respect to the reference line will change according to the quadrant in which the object may be situated because the representation of views will on 2 dimensional sheet for that the planes has to rotate and with respective to reference line and this will be different for different quadrant.
discuss
104.

The first and the third quadrants are always opened out while rotating the planes.

A. true
B. false
Answer» A. true
Explanation: according to the standards it is made that the planes rotate in a clockwise direction while drawing the orthographic projections of objects on the different quadrant. so as the horizontal rotates 90 degrees in clockwise with respect to reference line the views in 2nd and 4th quadrants overlap but in 1st and 3rd the views will not coincide so they are said to be opened.
discuss
105.

An object is kept in one of the quadrants of principal planes of projection, for both the front view and top view of the object, the view came first and then the object (the observer is at the top right side of principal planes). The object is in which quadrant?

A. 1st quadrant
B. 2nd quadrant
C. 3rd quadrant
D. 4th quadrant
Answer» C. 3rd quadrant
Explanation: if we imagine the principal planes and the observer at the top right side of those planes we can clearly watch the positions of object with respect to their view. here the object is in 3rd quadrant so view will come first.
discuss
106.

An object is kept in one of the quadrants of principal planes of projection, for both the front view and top view of the object the object came first and then the views on planes (the observer is at top right side of principal planes). The object is in which quadrant?

A. 1st quadrant
B. 2nd quadrant
C. 3rd quadrant
D. 4th quadrant
Answer» A. 1st quadrant
Explanation: if we imagine the principal planes and the observer at top right side of those planes we can clearly watch the positions of object with respect to their view. here the object is in 1st quadrant so object will come first in both the views.
discuss
107.

An object is kept in one of the quadrants of principal planes of projection, for the front view the view is first and object is next and for top view the object came first and then the view on plane (the observer is at top right side of principal planes). The object is in which quadrant?

A. 1st quadrant
B. 2nd quadrant
C. 3rd quadrant
D. 4th quadrant
Answer» B. 2nd quadrant
Explanation: if we imagine the principal planes and the observer at top right side of those planes we can clearly watch the positions of object with respect to their view. here the object is in 2nd quadrant so view will come first for front view and object will come first for top view.
discuss
108.

The line formed by intersection of principal planes is called                            

A. projection line
B. origin line
C. line of intersection
D. reference line
Answer» D. reference line
Explanation: the line formed by an intersection of principal planes or reference planes of projection that is the vertical plane or frontal plane and horizontal plane is called reference line which is denoted by the letters xy.
discuss
109.

The vertical plane is also called

A. straight plane
B. perpendicular plane
C. frontal plane
D. pole plane
Answer» C. frontal plane
Explanation: vertical plane will be vertical to ground and perpendicular with horizontal plane. as the observer will always be at right- top side of planes of projections the front view will always be placed on vertical plane only so the vertical plane is also called frontal plane.
discuss
110.

The negative horizontal plane and positive horizontal makes            angle with each other.

A. 90 degrees
B. 180 degrees
C. 120 degrees
D. 270 degrees
Answer» B. 180 degrees
Explanation: the negative horizontal plane means the part of horizontal plane which lies in 2nd quadrant. the positive and negative planes are parallel to each other so the angle between the parallel planes is always 180 degrees.
discuss
111.

The positive vertical plane and positive horizontal plane makes                angle with each other in anti clockwise direction.

A. 180 degrees
B. 270 degrees
C. 0 degrees
D. 90 degrees
Answer» B. 270 degrees
Explanation: given the direction is anti- clockwise direction so the angle in 270 degrees if it is given clockwise direction the angle should be 90 degrees since the given planes are consecutive planes in planes of projection.
discuss
112.

In 1st angle projection the object is kept in

A. 1st quadrant
B. 2nd quadrant
C. 3rd quadrant
D. 4th quadrant
Answer» A. 1st quadrant
Explanation: we can keep an object in any quadrant of projection planes but every time we keep in different quadrants gives different relative positions in projections. here 1st angle represents the initial stage in forming projection of planes so 1st quadrant represents 1st angle projection.
discuss
113.

1st angle projection is recommended by

A. usa
B. isi
C. bureau of indian standards
D. asme
Answer» C. bureau of indian standards
Explanation: first angle projection is recommended by bureau of indian standards but usa and other countries recommend third angle projection. the changes in both
discuss
114.

In 1st angle projection the                    lies between                        and                          

A. object, projection plane, observer
B. projection plane, object, observer
C. reference line, side view, front view
D. reference line, left side view, right side view
Answer» A. object, projection plane, observer
Explanation: the observer is always at the right side top end. so as the observer watches the object comes first and then the projection plane as the object in the 1st quadrant in 1st angle projection. so object lies between projection plane and observer.
discuss
115.

In 1st angle projection, the front view will be below the top view.

A. true
B. false
Answer» B. false
Explanation: as the object is in first quadrant and the front view projects on vertical plane and top view projects on horizontal plane. and for representing the projection the horizontal plane has to turn 90 degrees in clockwise direction. the top view will be below the front view.
discuss
116.

In 1st angle projection the positions of front and top views are                      

A. top view lies above the front view
B. front view lies above the top view
C. front view lie left side to top view
D. top view lie left side to front view
Answer» B. front view lies above the top view
Explanation: as the object is in first quadrant and the front view projects on vertical plane and top view projects on horizontal plane. and for representing the projection the horizontal plane has to turn 90 degrees in clockwise direction.
discuss
117.

In 1st angle projection, the left side view will be left side of front view.

A. true
B. false
Answer» B. false
Explanation: in first angle projection the object’s left side will be projected only if we watch from left side of object and the impression will fall to the right side of front view similar to the other side also so the left side view is placed on the right side of front view.
discuss
118.

The positions of right side view and front view of an object kept in 1st quadrant and projection are drawn?

A. right side view is right side of front view
B. right side view is left side of front view
C. right side view is above the front view
D. right side view is below the front view
Answer» B. right side view is left side of front view
Explanation: in first angle projection the object’s right side will be projected only if we watch from right side of object and the impression will fall to the left side of front view similar to the other side also so the right side view is placed on the left side of front view.
discuss
119.

The positions of reference line and top view in 1st angle projection are                      

A. reference line lies above the top view
B. reference line lies below the top view
C. reference line lie left side to top view
D. reference line lie right side to top view
Answer» A. reference line lies above the top view
Explanation: reference line will be the xy line which is formed by intersection of vertical plane and horizontal plane. in the first angle projection the projections of object is taken by placing object in 1st quadrant and top view is projected on to horizontal plane which is after the reference line.
discuss
120.

If an object is placed in 1st quadrant such that one of the surfaces of object is coinciding with vertical plane, what is the correct position of views from the following?

A. the front view touches the reference line
B. the side view touches the reference line
C. the top view touches the reference line
D. the bottom view touches the reference line
Answer» C. the top view touches the reference line
Explanation: in the first angle projection the projections of object is taken by placing object in 1st quadrant. if the object’s surface is coinciding the vertical plane which indirectly saying the distance from vertical plane is zero so top view of that object touches the reference line.
discuss
121.

If an object is placed in 1st quadrant such that one of the surfaces of object is coinciding with horizontal plane, what is the correct position of views from the following?

A. the front view touches the reference line
B. the side view touches the reference line
C. the top view touches the reference line
D. the bottom view touches the reference line
Answer» A. the front view touches the reference line
Explanation: in the first angle projection the projections of object is taken by placing object in 1st quadrant. if the object’s surface is coinciding the horizontal plane which indirectly saying the distance from horizontal plane is zero so front view of that object touches the reference line.
discuss
122.

If an object is placed in 1st quadrant such that one of the surfaces of object is coinciding with both vertical plane and horizontal plane, what is the correct position of views from the following?

A. the top view touches the reference line
B. the top view and side view touch each other
C. both side views touch each other
D. the top view and front touches each other at reference line
Answer» D. the top view and front touches each other at reference line
Explanation: if the object is placed in 1st quadrant and the object’s surface is coinciding with both the horizontal plane and vertical plane which indirectly saying the distance from both the planes is zero so both top and front views of that object touches the reference line.
discuss
123.

Where is the position of bottom view in 1st angle projection?

A. left side of right hand side view
B. right side of right hand side view
C. above the front view
D. below the top view
Answer» C. above the front view
Explanation: first angle projection means the object is placed in first quadrant and the top view of the object is below the front view so the bottom view is above the front view.
discuss
124.

Where is the position of back view in 1st angle projection?

A. left side of right hand side view
B. right side of right hand side view
C. above the front view
D. below the top view
Answer» B. right side of right hand side view
Explanation: in the first angle projection the top view of the object is below the front view and then come the side views to the left and right of front view and then back view which can either be kept on ends of side views but as standard notation it is placed on right side of right side view.
discuss
125.

In 3rd angle projection the object is kept in

A. 1st quadrant
B. 2nd quadrant
C. 3rd quadrant
D. 4th quadrant
Answer» C. 3rd quadrant
Explanation: we can keep object in any quadrant of projection planes but every time we keep in different quadrants gives different relative positions in projections. here 3rd angle represents the initial stage in forming projection of planes so 3rd quadrant represents 3rd angle projection.
discuss
126.

3rd angle projection is recommended by

A. usa
B. isi
C. bureau of indian standards
D. is
Answer» A. usa
Explanation: third angle projection is recommended by usa and other countries and 1st angle projection is recommended by bureau of indian standards. the changes in both the projections are relative positions in projection.
discuss
127.

In 3rd angle projection the                    lies between                        and                          

A. object, projection plane, observer
B. projection plane, object, observer
C. reference line, side view, front view
D. reference line, left side view, right side view
Answer» B. projection plane, object, observer
Explanation: the observer is always at the right side top end. so as the observer watches the projection plane comes first and then the object as the object in the 3rd quadrant in 3rd angle projection, so plane of projection lies between object and observer.
discuss
128.

In 3rd angle projection, the front view will be below the top view.

A. true
B. false
C. topic 2.4 third angle projection method
Answer» A. true
Explanation: as the object is in third quadrant and the front view projects on a vertical plane and top view projects on horizontal plane. and for representing the projection the horizontal plane has to turn 90 degrees in clockwise direction. the top view will be above the front view.
discuss
129.

In 3rd angle projection, the positions of front view and top views are?

A. top view lies above the front view
B. front view lies above the top view
C. front view lie left side to top view
D. top view lie left side to front view
Answer» A. top view lies above the front view
Explanation: as the object is in third quadrant and the front view projects on a vertical plane and top view projects on horizontal plane. and for representing the projection the horizontal plane has to turn 90 degrees in clockwise direction.
discuss
130.

In 3rd angle projection, the left side view will be left side of front view.

A. true
B. false
Answer» A. true
Explanation: in third angle projection the object’s left side will be projected only if we watch from right side of the object so impression will fall to the left side of front view since the plane of projection is back side of object and also the right side view is placed on the right side of front view.
discuss
131.

The positions of right side view and front view of an object kept in 3rd quadrant and projection are drawn?

A. right side view is right side of front view
B. right side view is left side of front view
C. right side view is above the front view
D. right side view is below the front view
Answer» A. right side view is right side of front view
Explanation: in third angle projection the
discuss
132.

The positions of reference line and top view in 3rd angle projection are?

A. reference line lies above the top view
B. reference line lies below the top view
C. reference line lie left side to top view
D. reference line lie right side to top view
Answer» B. reference line lies below the top view
Explanation: reference line will be the xy line which is formed by an intersection of vertical plane and horizontal plane. in the third angle projection the projections of object are taken by placing object in 3rd quadrant and top view is projected on to horizontal plane which is above the reference line.
discuss
133.

If an object is placed in 3rd quadrant such that one of the surfaces of object is coinciding with vertical plane, what is the correct position of views from the following?

A. the front view touches the reference line
B. the side view touches the reference line
C. the top view touches the reference line
D. the bottom view touches the reference line
Answer» C. the top view touches the reference line
Explanation: in the third angle projection the projections of object is taken by placing object in 3rd quadrant. if the object’s surface is coinciding the vertical plane which indirectly saying the distance from vertical plane is zero so top view of that object touches the reference line.
discuss
134.

If an object is placed in 3rd quadrant such that one of the surfaces of object is coinciding with horizontal plane, what is the correct position of views from the following?

A. the front view touches the reference line
B. the side view touches the reference line
C. the top view touches the reference line
D. the bottom view touches the reference line
Answer» A. the front view touches the reference line
Explanation: in the third angle projection the projections of object is taken by placing object in 3rd quadrant. if the object’s surface is coinciding the horizontal plane which indirectly saying the distance from horizontal plane is zero so front view of that object touches the reference line.
discuss
135.

If an object is placed in 3rd quadrant such that one of the surfaces of object is coinciding with both vertical plane and horizontal plane, what is the correct position of views from the following?

A. the top view touches the reference line
B. the top view and side view touch each other
C. both side views touch each other
D. the top view and front touches each other at reference line
Answer» D. the top view and front touches each other at reference line
Explanation: if the object is placed in 3rd quadrant and the object’s surface is coinciding with both the horizontal plane and vertical plane which indirectly saying the distance from both the planes is zero so both top and front views of that object touches the reference line.
discuss
136.

Where is the position of bottom view in 3rd angle projection?

A. left side of right hand side view
B. right side of right hand side view
C. above the front view
D. below the top view
Answer» D. below the top view
Explanation: third angle projection means the object is placed in third quadrant and the top view of the object is above the front view so the bottom view is below the front view.
discuss
137.

Where is the position of back view in 3rd angle projection?

A. left side of right hand side view
B. right side of right hand side view
C. above the front view
D. below the top view
Answer» B. right side of right hand side view
Explanation: in the third angle projection the top view of the object is above the front view and then come the side views to the left and right of front view and then back view which can either be kept on ends of side views but as standard notation it is placed on right side of right side view.
discuss
138.

A regular cone is rested on base on horizontal plane the front view will be

A. circle
B. scalene triangle
C. equilateral triangle
D. isosceles triangle
Answer» D. isosceles triangle
Explanation: given the cone is regular cone that means the tip of cone will be at center if viewed from top, so for such a cone the front view will be a triangle and in particular isosceles triangle and the top view will be circle.
discuss
139.

A Cube is placed on horizontal plane such that one of the space diagonal is perpendicular to horizontal plane the top view will be                            

A. octagon
B. square
C. hexagon
D. rectangle
Answer» C. hexagon
Explanation: a cube is a 3 dimensional object whose length, width and thickness will
discuss
140.

A cylinder’s axis is perpendicular to profile plane the top view will be                              

A. circle
B. cylinder
C. rectangle
D. parallelogram
Answer» C. rectangle
Explanation: given a cylinder whose axis is perpendicular to a profile plane so the top view and front view will be rectangle and side view will be circle. if the cylinder is slightly tilted with respect to profile then top view and front view will be parallelogram.
discuss
141.

An egg is placed vertical to horizontal plane the top view will be                              

A. ellipse
B. circle
C. oval
D. sphere
Answer» B. circle
Explanation: given the egg is placed vertical to horizontal plane the front view and side view will be same and it might be conical, oval or elliptical etc. the top view always be circle. that’s why the egg boxes are made impression of semi spheres.
discuss
142.

A Cardboard is made to cut in shape of ‘A’ and as we placed in projection planes and from top view the legs of cardboard touch the profile plane and cardboard is parallel to horizontal plane. Which of the following is wrong?

A. the front view gives thickness of cardboard
B. the side views give width of cardboard
C. the front view gives height of cardboard
D. the top view gives thickness of cardboard
Answer» D. the top view gives thickness of cardboard
Explanation: from given information, we can understand that the cardboard is parallel to horizontal plane and direction of ‘a’ placed in projection planes so the front view and side view gives thickness, the front view and top view gives a height of cardboard and side view and top view gives width of cardboard.
discuss
143.

An object is placed in between projection planes, the front view and side view gives the same rectangle and top view is giving square the object is                                  

A. a square cylinder, such that square base is parallel to horizontal plane
B. a square cylinder, such that square base is parallel to vertical plane
C. a square cylinder, such that square base is parallel to profile plane
D. a square cylinder, such that axis is parallel to horizontal
Answer» A. a square cylinder, such that square base is parallel to horizontal plane
Explanation: given that the object is viewing from front and side as rectangle and top view is square so we can understand that pyramid has height more than the side of square and accordingly the view the object can be cuboid (square cylinder).
discuss
144.

A plate of a negligible thickness of circular shape is placed parallel to horizontal plane the front view will be                          

A. line
B. circle
C. rectangle
D. ellipse
Answer» A. line
Explanation: given a plate which is in circular shape given plate is parallel to horizontal plane so the front view and side views will be line whose length is equal to diameter of circle as the thickness is negligible the front view, side view can’t be rectangle and top view will be circle.
discuss
145.

A regular tetrahedron is placed on horizontal plane on one of its base, the front view, top view and side view gives triangle.

A. true
B. false
Answer» A. true
Explanation: a regular tetrahedron is formed by enclosing 4 equal triangles. and given one of the base is parallel to horizontal so in what angle the tetrahedron might be turned the front view and side view will be a triangle.
discuss
146.

A regular cone is placed on horizontal plane on its base the top view is

A. circle
B. rectangle
C. square
D. triangle
Answer» A. circle
Explanation: a regular cone generally will have a base circle and constant difference in cross-section. when a cone placed on horizontal that is base is parallel to horizontal plane then the front view and side views will show triangle for both and top view will shows circle.
discuss
147.

The views will change if we keep the object in different quadrants.

A. true
B. false
Answer» B. false
Explanation: whenever we change the object from one quadrant to other quadrants the relative positions of projection drawn will change accordingly but the views of the object will not change.
discuss
148.

A Square pyramid is resting on vertical plane with base parallel to vertical plane. The side view will be                            

A. triangle
B. polygon with 4 sides
C. square
D. polygon with 5 sides
Answer» A. triangle
Explanation: a square pyramid have base of square which is resting on vertical plane as said above so the side views, top view and bottom view gives the triangle and front view and back view gives square.
discuss
149.

A triangular prism is placed in projection plane such that the square surface is parallel to horizontal plane. The top view, front view will be                      

A. square, rectangle respectively
B. rectangle, triangle respectively
C. rectangle, rectangle respectively
D. triangle, rectangle respectively
Answer» C. rectangle, rectangle respectively
Explanation: given a triangular prism is placed in projection plane such that the square base is parallel to horizontal plane. a triangular prism is nothing but triangular cylinder as per position given the front view and top view will be rectangle and side view will be triangle.
discuss
150.

A pentagonal prism is placed the axis is perpendicular to horizontal plane, the top view and front view are                              

A. pentagon, rectangle
B. rectangle, rectangle
C. pentagon, triangle
D. rectangle, triangle
Answer» A. pentagon, rectangle
Explanation: given a pentagonal prism is placed in projection plane such that the axis is perpendicular to horizontal plane. a pentagonal prism is nothing but pentagonal cylinder as per position given the front view and side view will be rectangle and top view will be pentagon.
discuss

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