McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Civil Engineering .
| 401. |
A square pyramid is placed on H.P on its square base and section plane is perpendicular to V.P and inclined to H.P cutting given solid in such a way that the perpendicular distance from the ends of section to axis is same. The section will be |
| A. | square |
| B. | triangle |
| C. | irregular pentagon |
| D. | rhombus |
| Answer» D. rhombus | |
| Explanation: given a square pyramid it may of any size having any distances in between them if a section plane cutting the solid coincides with base edge and cutting pyramid gives a irregular square and similar to other based pyramids also. | |
| 402. |
A square pyramid is placed on H.P on its square base and section plane is perpendicular to V.P and parallel to H.P and cutting the solid. The section will be |
| A. | square |
| B. | triangle |
| C. | irregular pentagon |
| D. | rhombus |
| Answer» A. square | |
| Explanation: if a pyramid is cut by a plane perpendicular to its axis section gives the base shape or parallel to axis and also parallel to any edge of base then the section formed will be trapezium if the section plane not parallel to edge of base then the section will be a triangle. | |
| 403. |
A regular pentagonal pyramid of base side equal to 5 cm is resting on H.P on its pentagon face and section plane is parallel to axis and parallel to edge of base and plane is 2 cm away from axis. The section will be |
| A. | triangle |
| B. | trapezium |
| C. | rectangle |
| D. | pentagon |
| Answer» B. trapezium | |
| Explanation: if a pyramid is cut by a plane parallel to axis and also parallel to any edge of base then the section formed will be trapezium if the section plane not parallel to edge of base then the section will be triangle. | |
| 404. |
A regular pentagonal pyramid of base side equal to 5 cm is resting on H.P on its pentagon face and section plane is perpendicular to axis. The section will be |
| A. | triangle |
| B. | trapezium |
| C. | rectangle |
| D. | pentagon |
| Answer» D. pentagon | |
| Explanation: if a pyramid is cut by a plane perpendicular to its axis section gives the base shape or parallel to axis and also parallel to any edge of base then the section formed will be trapezium if the section plane not parallel to edge of base then the section will be triangle. | |
| 405. |
A regular octagonal pyramid of base side equal to 6 cm is resting on its octagon face on ground and section plane is parallel to axis and parallel to one of edges of base is held at a distance of 2 cm away from axis the section will be |
| A. | triangle |
| B. | trapezium |
| C. | rectangle |
| D. | octagon |
| Answer» B. trapezium | |
| Explanation: if a pyramid is cut by a plane parallel to axis and also parallel to any edge of base then the section formed will be trapezium if the section plane not parallel to edge of base then the section will be a triangle. | |
| 406. |
A regular octagonal pyramid of base side equal to 6 cm is resting on its octagon face on ground and section plane is parallel to axis and not parallel to any of the edges of base is held at a distance of 4 cm away from axis the section will be |
| A. | triangle |
| B. | trapezium |
| C. | rectangle |
| D. | octagon |
| Answer» A. triangle | |
| Explanation: if a pyramid is cut by a plane parallel to axis and also parallel to any edge of base then the section formed will be trapezium if the section plane not parallel to edge of base then the section will be a triangle. | |
| 407. |
A regular octagonal pyramid of base side equal to 6 cm is resting on its octagon face on ground and the section is coinciding with the edge of base and cutting solid with an angle with base equal to 45 degrees the section will be |
| A. | triangle |
| B. | trapezium |
| C. | irregular octagon |
| D. | octagon |
| Answer» C. irregular octagon | |
| Explanation: given a regular octagonal pyramid it may of any size having any distances in between them if a section plane cutting the solid coincides with base edge and | |
| 408. |
A cylinder is placed on H.P on its base and section plane is parallel to V.P cutting the solid the section gives |
| A. | parabola |
| B. | circle |
| C. | rectangle |
| D. | ellipse |
| Answer» C. rectangle | |
| Explanation: cylinder is formed by rotating the rectangle about one of its sides which is said to axis further. so if the cutting plane is parallel to axis the section formed is rectangle and if plane is perpendicular to axis it gives circle. | |
| 409. |
A cylinder is placed on H.P on its base and section plane is parallel to H.P cutting the solid the section gives |
| A. | parabola |
| B. | circle |
| C. | rectangle |
| D. | ellipse |
| Answer» B. circle | |
| Explanation: cylinder is formed by rotating the rectangle about one of its sides which is said to axis further. so if the cutting plane is parallel to axis the section formed is rectangle and if plane is perpendicular to axis it gives circle. | |
| 410. |
A cylinder is placed on H.P on its base and section plane is inclined to H.P and perpendicular to V.P cutting only less than half of the generators of the solid the section gives |
| A. | parabola |
| B. | circle |
| C. | rectangle |
| D. | ellipse |
| Answer» A. parabola | |
| Explanation: if a cylinder is been cut by plane which is inclined to base or axis if it cuts all the generator the section formed will be ellipse and if the plane cuts less than half of generators the section formed will be parabola. | |
| 411. |
A cylinder is placed on V.P on its base and section plane is inclined to V.P and perpendicular to H.P cutting all the generators of the solid the section gives |
| A. | parabola |
| B. | circle |
| C. | rectangle |
| D. | ellipse |
| Answer» D. ellipse | |
| Explanation: if a cylinder is been cut by plane which is inclined to base or axis if it cuts all the generator the section formed will be ellipse and if the plane cuts less than half of generators the section formed will be parabola. | |
| 412. |
A cylinder is placed on V.P on its base and section plane is inclined to H.P and perpendicular to V.P cutting the solid the section gives |
| A. | parabola |
| B. | circle |
| C. | rectangle |
| D. | ellipse |
| Answer» C. rectangle | |
| Explanation: cylinder is formed by rotating the rectangle about one of its sides which is said to axis further. so if the cutting plane is parallel to axis the section formed is rectangle and if plane is perpendicular to axis it gives circle. | |
| 413. |
A cylinder is been cut by a plane parallel to its base the section will be |
| A. | parabola |
| B. | circle |
| C. | rectangle |
| D. | ellipse |
| Answer» B. circle | |
| Explanation: cylinder is formed by rotating the rectangle about one of its sides which is said to axis further. so if the cutting plane is parallel to axis the section formed is rectangle and if plane is perpendicular to axis it gives circle. | |
| 414. |
A cylinder is been cut by a plane parallel to axis the section will be |
| A. | parabola |
| B. | circle |
| C. | rectangle |
| D. | ellipse |
| Answer» C. rectangle | |
| Explanation: cylinder is formed by rotating the rectangle about one of its sides which is said to axis further. so if the cutting plane is parallel to axis the section formed is rectangle and if plane is perpendicular to axis it gives circle. | |
| 415. |
A cylinder is kept in such a way its axis is parallel to both the reference planes and cut completely by a section plane is perpendicular to V.P and inclined to H.P then the section will be |
| A. | parabola |
| B. | circle |
| C. | rectangle |
| D. | ellipse |
| Answer» D. ellipse | |
| Explanation: given a cylinder is placed on profile plane or picture plane and is been cut by a cutting plane inclined to axis as per conditions that is cutting all generators which definitely give ellipse as a section. | |
| 416. |
A cutting plane cut the cylinder into half diagonally touching both the bases at corners the section and side view of 1 part of cylinder is |
| A. | ellipse, circle |
| B. | ellipse, rectangle |
| C. | ellipse, triangle |
| D. | closed figure formed by 2 parallel line bounded by 2 similar arcs, triangle |
| Answer» C. ellipse, triangle | |
| Explanation: given a cylinder is been cut diagonally from one corner of 1st base to other corner of 2nd base as we can imagine it is just cutting a plane inclined to axis that is cutting all generators which definitely give ellipse as section and side view will be triangle, top view will be a circle. | |
| 417. |
A cylinder is placed on V.P on its base and the section plane is parallel to H.P cutting the solid into two equal parts the top view of the 1st part of cylinder will be |
| A. | rectangle of width equal to half of diameter of cylinder |
| B. | rectangle of width equal to diameter of cylinder |
| C. | circle of diameter equal to that of cylinder |
| D. | semicircle with diameter equal to that of cylinder |
| Answer» B. rectangle of width equal to diameter of cylinder | |
| Explanation: given the cylinder is placed on | |
| 418. |
A regular cone is placed such that axis is perpendicular to H.P and the section plane is inclined to axis and parallel to one of the generator then the section will be |
| A. | ellipse |
| B. | hyperbola |
| C. | parabola |
| D. | triangle |
| Answer» C. parabola | |
| Explanation: if a regular cone is been cut by plane which is inclined to axis of cone and cutting all generators then the section formed will be ellipse and if section plane is inclined with axis with angle less than half of the angle between the slanting ends then section formed is a parabola. | |
| 419. |
A regular cone is placed such that axis is parallel to both reference planes the section plane perpendicular to both reference planes and cuts the cone the section will be like |
| A. | ellipse |
| B. | hyperbola |
| C. | circle |
| D. | triangle |
| Answer» C. circle | |
| Explanation: if a cone made to cut by a plane parallel to its axis and some distance away from it the section formed is hyperbola. if the section plane is perpendicular to axis the | |
| 420. |
A regular cone is placed on H.P and section plane is parallel to axis cutting the cone at the middle then the section will be |
| A. | ellipse |
| B. | hyperbola |
| C. | circle |
| D. | triangle |
| Answer» D. triangle | |
| Explanation: if a cone made to cut by a plane parallel to its axis and some distance away from it the section formed is hyperbola. if the section plane is perpendicular to axis the section is circle. if section plane passes through apex the section formed is a triangle. | |
| 421. |
A regular cone is been cut by a cutting plane which passes through the apex of cone and making some angle with axis less than half of angle between the slanting ends the section will be like |
| A. | ellipse |
| B. | hyperbola |
| C. | circle |
| D. | triangle |
| Answer» D. triangle | |
| Explanation: if a cone made to cut by a plane parallel to its axis and some distance away from it the section formed is hyperbola. if the section plane is perpendicular to axis the section is circle. if section plane passes through apex the section formed is a triangle. | |
| 422. |
A regular cone is resting on V.P with axis perpendicular to it a plane is cutting the cone such that it is perpendicular to H.P and inclined to V.P cutting cone at all generators the section formed is |
| A. | ellipse |
| B. | hyperbola |
| C. | circle |
| D. | triangle |
| Answer» A. ellipse | |
| Explanation: if a regular cone is been cut by plane which is inclined to axis of cone and cutting all generators then the section formed will be ellipse. if section plane is inclined with axis with angle less than half of the angle between the slanting ends then section formed is a parabola. | |
| 423. |
A regular cone is resting on H.P on its base. A section plane is perpendicular to H.P and V.P cutting the cone such that the plane is not having axis of cone in it. The section would be |
| A. | ellipse |
| B. | hyperbola |
| C. | parabola |
| D. | triangle |
| Answer» C. parabola | |
| Explanation: given the section plane is perpendicular to h.p and v.p and axis of cone perpendicular to h.p. so if a regular cone is been cut by plane which is parallel to its axis and plane is not coinciding with the axis then section formed will be parabola. | |
| 424. |
A regular cone is been cut by a plane which is perpendicular to axis of cone the section will be like |
| A. | ellipse |
| B. | hyperbola |
| C. | circle |
| D. | triangle |
| Answer» C. circle | |
| Explanation: if a cone made to cut by a plane parallel to its axis and some distance away from it the section formed is hyperbola. if the section plane is perpendicular to axis the section is circle. if section plane passes through apex the section formed is triangle. | |
| 425. |
A regular cone is been cut by a plane which is parallel to the axis of cone the section formed will be like |
| A. | ellipse |
| B. | hyperbola |
| C. | circle |
| D. | parabola |
| Answer» B. hyperbola | |
| Explanation: if a cone made to cut by a plane parallel to its axis and some distance away from it the section formed is hyperbola. if the section plane is perpendicular to axis the section is circle. if section plane passes through apex the section formed is a triangle. | |
| 426. |
A regular cone is been cut by a plane which is parallel to the axis of cone, the section formed will be like |
| A. | ellipse |
| B. | triangle |
| C. | circle |
| D. | parabola |
| Answer» B. triangle | |
| Explanation: if a cone made to cut by a plane parallel to its axis and some distance away from it the section formed is hyperbola. if the section plane is perpendicular to axis the section is circle. if section plane passes through apex the section formed is a triangle. | |
| 427. |
A regular cone is been cut by a plane which is inclined to axis of cone and cuts all the generators the section formed be like |
| A. | ellipse |
| B. | hyperbola |
| C. | circle |
| D. | parabola |
| Answer» A. ellipse | |
| Explanation: if a regular cone is been cut by plane which is inclined to axis of cone and cutting all generators then the section formed will be an ellipse and if section plane is inclined with axis with angle less than half of the angle between the slanting ends then section formed is a parabola. | |
| 428. |
A sphere is placed on H.P and section plane is parallel to H.P the section is circle and if the section plane is parallel to V.P the section is again circle. |
| A. | true |
| B. | false |
| Answer» A. true | |
| Explanation: when a sphere is cut by a plane, the true shape of the section is always a circle. but here asked are views so it will be lines or ellipse according to section plane however the section plane will lay section will be circle. | |
| 429. |
A sphere is placed on V.P the section plane perpendicular to H.P and inclined to V.P cutting the sphere section formed and front view will be |
| A. | circle, line |
| B. | circle, circle |
| C. | ellipse, circle |
| D. | circle, ellipse |
| Answer» D. circle, ellipse | |
| Explanation: when a sphere is cut by a plane, the true shape of the section is always a circle. but here asked are views so it will be lines or ellipse according to section plane however the section plane will lay section will be circle. | |
| 430. |
6 SECTIONS OF SPHERES |
| A. | ellipse |
| B. | circle |
| C. | line |
| D. | oval |
| Answer» B. circle | |
| Explanation: when a sphere is cut by a plane, the true shape of the section is always a circle. but here asked are views so it will be lines or ellipse according to section plane here the views of minor parts give segment. | |
| 431. |
A hemi sphere is placed on H.P on its base a section plane which is perpendicular to H.P and inclined to V.P and cutting the hemisphere the section will be |
| A. | circle |
| B. | ellipse |
| C. | sector |
| D. | segment |
| Answer» D. segment | |
| Explanation: hemisphere is the half sphere. when a hemisphere is made to cut by a plane parallel to base the section formed will be circle. if the plane is inclined to base the section formed will be segment. | |
| 432. |
A sphere is cut by plane which is perpendicular to V.P and inclined to H.P the top view and section will be |
| A. | line, circle |
| B. | line, ellipse |
| C. | ellipse, circle |
| D. | circle, ellipse |
| Answer» C. ellipse, circle | |
| Explanation: when a sphere is cut by a plane, the true shape of the section is always a circle. but here asked are views so it will be lines or ellipse according to section plane however the section plane will lay section will be circle. | |
| 433. |
A sphere is cut by plane which is perpendicular to V.P and inclined to H.P the top view and front view of minor part will be |
| A. | circle |
| B. | ellipse |
| C. | sector |
| D. | segment |
| Answer» A. circle | |
| Explanation: hemisphere is the half sphere. when a hemisphere is made to cut by a plane parallel to base the section formed will be circle. if the plane is inclined to base the section formed will be segment. | |
| 434. |
A sphere is cut by a plane at the middle the plane is perpendicular to both reference planes the top view and front view will be |
| A. | line, circle |
| B. | circle, line |
| C. | line, line |
| D. | circle, circle |
| Answer» C. line, line | |
| Explanation: given the plane is perpendicular to both the reference planes so the plane is parallel to picture plane so the section would also be parallel to picture plane as the section is a 2d figure the other view will give line obviously. | |
| 435. |
A sphere is cut by a plane which is inclined to both reference planes the top view and front view of section will be |
| A. | line, line |
| B. | circle, circle |
| C. | ellipse, circle |
| D. | ellipse, ellipse |
| Answer» D. ellipse, ellipse | |
| Explanation: when a sphere is cut by a plane, the true shape of the section is always a circle. but here it is asked view so they will be definitely ellipse since the section plane is inclined to both the reference planes. | |
| 436. |
Which method of development is employed in case of prisms? |
| A. | parallel-line development |
| B. | approximation method |
| C. | triangulation development |
| D. | radial-line development |
| Answer» A. parallel-line development | |
| Explanation: parallel-line method is employed in case of prisms and cylinders in which stretch out-line principle is used. | |
| 437. |
Which method of development is employed in case of cones? |
| A. | parallel-line development |
| B. | approximation method |
| C. | triangulation development |
| D. | radial-line development |
| Answer» D. radial-line development | |
| Explanation: parallel-line method is employed in case of prisms and cylinders in which stretch out-line principle is used. | |
| 438. |
Which method of development is employed in case of double curved objects? |
| A. | parallel-line development |
| B. | approximation method |
| C. | triangulation development |
| D. | radial-line development |
| Answer» B. approximation method | |
| Explanation: approximation method is used to develop objects of double curved or warped surfaces as sphere, paraboloid, ellipsoid, hyperboloid and helicoid. | |
| 439. |
Which method is used to develop transition pieces? |
| A. | parallel-line development |
| B. | approximation method |
| C. | triangulation development |
| D. | radial-line development |
| Answer» C. triangulation development | |
| Explanation: approximation method is used to develop objects of double curved or warped surfaces as sphere, paraboloid, ellipsoid, hyperboloid and helicoid. | |
| 440. |
Which method of development is employed in case of sphere, ellipsoid? |
| A. | parallel-line development |
| B. | approximation method |
| C. | triangulation development |
| D. | radial-line development |
| Answer» B. approximation method | |
| Explanation: approximation method is used to develop objects of double curved or warped surfaces as sphere, paraboloid, ellipsoid, hyperboloid and helicoid. | |
| 441. |
The development of the lateral surface of a cylinder is a rectangle having one side equal to the of its base-circle and the other equal to its length. |
| A. | circumference |
| B. | area |
| C. | diameter |
| D. | radius |
| Answer» A. circumference | |
| Explanation: the development of the lateral surface of a cylinder is a rectangle having one side equal to the circumference of its base- | |
| 442. |
The development of the curved surface of a cone is a of a |
| A. | sector, circle |
| B. | segment, circle |
| C. | segment, ellipse |
| D. | arc, parabola |
| Answer» A. sector, circle | |
| Explanation: the development of the curved surface of a cone is a sector of a circle, the radius and the length of the arc of which are respectively equal to the slant height and the circumference of the base-circle of the cone. | |
| 443. |
The development of the surface of a cube consists of equal squares, the length of the side of the squares being equal to the length of the edge of the cube. |
| A. | 4 |
| B. | 6 |
| C. | 12 |
| D. | 8 |
| Answer» B. 6 | |
| Explanation: the development of the surface of a cube consists of 6 equal squares, the length of the side of the squares being equal to the length of the edge of the cube. it is 6 | |
| 444. |
A zone is portion of the sphere enclosed between two planes parallel to the axis. |
| A. | true |
| B. | false |
| Answer» B. false | |
| Explanation: a zone is portion of the sphere enclosed between two planes perpendicular to the axis. a lune is the portion between the two planes which contain the axis of the sphere. a sphere is approximately developed by these two methods. | |
| 445. |
Which method of development is employed in case of pyramids? |
| A. | parallel-line development |
| B. | approximation method |
| C. | triangulation development |
| D. | radial-line development |
| Answer» D. radial-line development | |
| Explanation: parallel-line is employed in case of prisms and cylinders in which stretch out-line principle is used. radial-line development is used for pyramids in which the actual length of the slant edge or the generator is used as a radius. | |
| 446. |
The surfaces of which intersect one another in lines which are called line of intersection. |
| A. | true |
| B. | false |
| Answer» A. true | |
| Explanation: in engineering practice, objects constructed may have constituent parts, the surfaces of which intersect one another in line which are called line of intersection. a dome fitted on a boiler is one such example. the surface of the dome extends up to the line of intersection only. | |
| 447. |
Drawing straight lines on both the surfaces of solids and then pointing the points where they intersect and drawing lines which forms the line of intersection this process of finding the line of intersection is termed as method. |
| A. | assumption |
| B. | line |
| C. | removing material |
| D. | cutting- plane |
| Answer» B. line | |
| Explanation: a number of lines are drawn on the lateral surface of one of the solids and in the region of the line of intersection. points of intersection of these lines with the surface of the other solid are then located. these points will obviously lie on the required line of intersection. | |
| 448. |
The line of intersection formed is curve while two solids are intersecting the solids may be |
| A. | cylinder, sphere |
| B. | prism, prism |
| C. | cuboid, cube |
| D. | prism, pyramid |
| Answer» A. cylinder, sphere | |
| Explanation: if any of the solid in two of intersecting solids is having curves surface that is cylinder, cone, sphere etc the line of intersection will give curve only but not straight line for getting line of intersection straight line both the solids should not have curved surfaces. | |
| 449. |
The line of intersection formed is straight line while two solids are intersecting the solids may be |
| A. | cube, cylinder |
| B. | prism, cone |
| C. | pyramid, cuboid |
| D. | cube, cone |
| Answer» C. pyramid, cuboid | |
| Explanation: if any of the solid in two of intersecting solids is having curves surface that is cylinder, cone, sphere etc the line of intersection will give curve only but not straight line for getting line of intersection | |
| 450. |
The angle between the isometric axes is |
| A. | 180 degrees |
| B. | 60 degrees |
| C. | 90 degrees |
| D. | 120 degrees |
| Answer» D. 120 degrees | |
| Explanation: isometric projection is a type of projection in which the three dimensions of a solid are not only shown in one view but also their actual sizes can be measured directly from it. so it is needed that there exist equal angle between the axes for easy measurement so 360/3=120 degrees is chosen. | |
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