McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Electronics and Communication Engineering .
| 301. |
The projection that can be viewed as the projection that has a centre of projection at a finite distance from the plane of projection are called ________ |
| A. | parallel projection |
| B. | perspective projection |
| C. | isometric projection |
| D. | none of these |
| Answer» B. perspective projection | |
| 302. |
The perspective projection is more practical because the distant objects appear _________. |
| A. | smaller |
| B. | larger |
| C. | neither smaller nor larger |
| D. | none of these |
| Answer» A. smaller | |
| 303. |
The equation of scaling transformation will be ___________ |
| A. | x1=x+tx,y1=y+ty,z1=z+tz |
| B. | x1=x.sx,y1=y.sy,z1=z.sz |
| C. | both of these |
| D. | none of these |
| Answer» B. x1=x.sx,y1=y.sy,z1=z.sz | |
| 304. |
The equation of translation transformation will be ______________. |
| A. | x1=x+tx,y1=y+ty,z1=z+tz |
| B. | x1=x.sx,y1=y.sy,z1=z.sz |
| C. | both of these |
| D. | none of these |
| Answer» A. x1=x+tx,y1=y+ty,z1=z+tz | |
| 305. |
The equation for describing surface of 3D plane are ______________. |
| A. | ax+ by+ cz+ d= 0 |
| B. | ax+ by+ cz = 0 |
| C. | ax+ by+ d= 0 |
| D. | ax+ by+ cz+ d= 1 |
| Answer» A. ax+ by+ cz+ d= 0 | |
| 306. |
The object refers to the 3D representation through linear, circular or some other
|
| A. | quadric surface |
| B. | sweep representation |
| C. | torus |
| D. | none of these |
| Answer» B. sweep representation | |
| 307. |
The distance of a line from the projection plane determines ___________ |
| A. | its size on projection plane |
| B. | its length on projection plane |
| C. | its width on projection plane |
| D. | its height on projection plane |
| Answer» A. its size on projection plane | |
| 308. |
The further the line from the projection plane, _______its image on the projection plane |
| A. | smaller |
| B. | larger |
| C. | neither smaller nor larger |
| D. | none of these |
| Answer» A. smaller | |
| 309. |
When two molecules move apart, which effect on molecular shapes_________. |
| A. | stretching |
| B. | snapping |
| C. | contracting |
| D. | all of these |
| Answer» D. all of these | |
| 310. |
The sweep representation of an object refers to the _____________ |
| A. | 2d representation |
| B. | 3d representation |
| C. | both a and b |
| D. | none of these |
| Answer» B. 3d representation | |
| 311. |
Translation is ___________ transformation in nature |
| A. | flexible |
| B. | differential |
| C. | rigid body |
| D. | all of above |
| Answer» C. rigid body | |
| 312. |
To translate a circle we add translation distances to __________ of circle. |
| A. | radius |
| B. | area |
| C. | center |
| D. | tangent |
| Answer» C. center | |
| 313. |
Scaling factor with absolute value less than one moves object ________ to coordinate origin. |
| A. | far away |
| B. | closer |
| C. | can\t say |
| D. | anywhere |
| Answer» B. closer | |
| 314. |
Scaling factor with absolute value ________ moves object fartrher from coordinate origin |
| A. | 0 |
| B. | 1 |
| C. | -1 |
| D. | none of above |
| Answer» D. none of above | |
| 315. |
_____________ is an example of affine transformation. |
| A. | translation |
| B. | rotation |
| C. | shear |
| D. | all of above |
| Answer» D. all of above | |
| 316. |
We can express 2D transformations as _________ matrix operators. |
| A. | 1 by 1 |
| B. | 2 by 2 |
| C. | 3 by 3 |
| D. | 4 by 4 |
| Answer» C. 3 by 3 | |
| 317. |
We can express 3D transformations as _________ matrix operators |
| A. | 1 by 1 |
| B. | 2 by 2 |
| C. | 3 by 3 |
| D. | 4 by 4 |
| Answer» D. 4 by 4 | |
| 318. |
Reflections are equivalent to _________ |
| A. | 180 degree rotation |
| B. | 90 degree rotation |
| C. | 18 degree rotation |
| D. | 0 degree rotation |
| Answer» A. 180 degree rotation | |
| 319. |
The subcategories of orthographic projection are_. |
| A. | cavalier,cabinet,isometric |
| B. | cavalier,cabinet |
| C. | isometric,dimetric,trimetric |
| D. | isometric,cavalier,trimetric |
| Answer» C. isometric,dimetric,trimetric | |
| 320. |
In perspective projection eye of the viewer is placed at the _. |
| A. | left of the projection |
| B. | right of the projection |
| C. | top of the projection |
| D. | center of the projection |
| Answer» D. center of the projection | |
| 321. |
In _ the projection, lines are perpendicular to the projection plane. |
| A. | orthographic projection |
| B. | oblique projection |
| C. | perspective projection |
| D. | cavalier projection |
| Answer» A. orthographic projection | |
| 322. |
Clockwise rotaton of 2D object is similar to clockwise rotation of _ in 3D |
| A. | about xaxis |
| B. | about y axis |
| C. | about zaxis |
| D. | none of these |
| Answer» C. about zaxis | |
| 323. |
In case of 3 clipping _ is the additional thing as compared to 2d clipping. |
| A. | top and bottom clipping |
| B. | back and front clipping |
| C. | left and right clipping |
| D. | none of these |
| Answer» B. back and front clipping | |
| 324. |
_projection ,all three principal axis are equally shortened so that realtive propostion are maintained. |
| A. | isometric |
| B. | axonometric |
| C. | cavalier |
| D. | cabinaet |
| Answer» A. isometric | |
| 325. |
In left handed system (LHS),the Zaxis_. |
| A. | points towards the viewer |
| B. | points away 4m the viewer |
| C. | points towards the direction of curling fingers |
| D. | none of these |
| Answer» B. points away 4m the viewer | |
| 326. |
In righthanded system(RHS),the Zaxis_. |
| A. | points towards the viewer |
| B. | points away 4m the viewer |
| C. | points towards the direction of curling fingers |
| D. | none of these |
| Answer» A. points towards the viewer | |
| 327. |
If the projection plane intersect exactly 2 principal axis then it is _. |
| A. | one point perspective projection |
| B. | two point prespective projrction |
| C. | three point perspective projection |
| D. | none of these |
| Answer» B. two point prespective projrction | |
| 328. |
A 45 degree rotation about y axis will move a line on x axis to __ |
| A. | xz plane |
| B. | xy plane |
| C. | yz plane |
| D. | z axis |
| Answer» A. xz plane | |
| 329. |
Which of the following is an example of orthographic projection |
| A. | cavalier |
| B. | cabinet |
| C. | dimetric |
| D. | none of these |
| Answer» C. dimetric | |
| 330. |
The projection line are normal to the view plane, then such type of projection is called as __ |
| A. | parallel projection |
| B. | persepective projection |
| C. | orthographic projection |
| D. | oblique projection |
| Answer» C. orthographic projection | |
| 331. |
Maximum no of vanishing points that can appear in a case of 3D object are_ |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 332. |
Which of the following is not a type of orthographic projection |
| A. | isometric projection |
| B. | cavalier projection |
| C. | three point |
| D. | both b and c |
| Answer» D. both b and c | |
| 333. |
In case of 3d clipping end point of line segment is assigned with __ bit. |
| A. | 4 |
| B. | 5 |
| C. | 6 |
| D. | 8 |
| Answer» C. 6 | |
| 334. |
__ projection are making 90 degree angle with view plane. |
| A. | isometric |
| B. | cabinet |
| C. | cavalier |
| D. | none of these |
| Answer» A. isometric | |
| 335. |
Dimetric projection are making _ degree angle with view plane |
| A. | 30 |
| B. | 90 |
| C. | 45 |
| D. | 80 |
| Answer» B. 90 | |
| 336. |
which of the following is a 3d viewing parameter? |
| A. | view plane |
| B. | view reference point |
| C. | view reference vector |
| D. | none of these |
| Answer» B. view reference point | |
| 337. |
In__ system +ve z axis points towards the viewer |
| A. | right hand system |
| B. | left hand system |
| C. | both a and b |
| D. | none of these |
| Answer» A. right hand system | |
| 338. |
Which of the following parameter is newly added in 3D as compared to 2D. |
| A. | width |
| B. | height |
| C. | depth |
| D. | none of these |
| Answer» C. depth | |
| 339. |
In 3D scaling transformation which field is addition as compared to 2D |
| A. | sx |
| B. | sy |
| C. | sz |
| D. | all of these |
| Answer» C. sz | |
| 340. |
Any 3D point is represented in matrix for with dimensions are __ |
| A. | 1*3 |
| B. | 3*1 |
| C. | 4*1 |
| D. | 1*4 |
| Answer» A. 1*3 | |
| 341. |
In case of 3D rotation, __angle produce counterclockwise rotation |
| A. | positive |
| B. | negative |
| C. | both a and b |
| D. | none of these |
| Answer» A. positive | |
| 342. |
In __ projection are parallel to each other |
| A. | perspective |
| B. | orthographic |
| C. | oblique |
| D. | both b and c |
| Answer» D. both b and c | |
| 343. |
In translaion process, the translation distance pair(tx,ty)is called a----- |
| A. | translation vector |
| B. | shift vector |
| C. | distanc parameter |
| D. | (a) and (b) |
| Answer» D. (a) and (b) | |
| 344. |
If a polygon with co-ordinates A(2,5),B(7,10),C(10,2) is translated 3 units in x-direction & 4 units in y-direction then the resultant co-ord.of polygon are----- |
| A. | a\(5,9),b\(10,14),c\(13,6) |
| B. | a\(2,5),b\(7,10),c\(10,2) |
| C. | a\(9,5),b\(14,10),c\(6,13) |
| D. | a\(5,9),b\(10,14),c\(13,6) |
| Answer» A. a\(5,9),b\(10,14),c\(13,6) | |
| 345. |
If a polygon with co-ordinates A(2,5),B(7,10),C(10,2) is scaled by 2 units in x-direction & 2 units in y-direction then the resultant co-ord.of polygon becomes A'-----,B'-----,C'----- |
| A. | (2,5),(7,10)(10,2) |
| B. | (5,2),(10,7)(2,10) |
| C. | (2,0),(2,0)(2,0) |
| D. | (0,2),(0,2)(0,2) |
| Answer» A. (2,5),(7,10)(10,2) | |
| 346. |
Three axes x,y,z are at -----angles to each other |
| A. | 90?? |
| B. | 180?? |
| C. | 360?? |
| D. | 0?? |
| Answer» A. 90?? | |
| 347. |
A vector perpendicular to a plane is called----- |
| A. | 90??vector |
| B. | normal vector |
| C. | axis vector |
| D. | plane vector |
| Answer» B. normal vector | |
| 348. |
The equation of plane is----- |
| A. | a+b+c+d=0 |
| B. | ax+by+cz+d=0 |
| C. | x+y+z=0 |
| D. | none of these |
| Answer» B. ax+by+cz+d=0 | |
| 349. |
In 3D viewing mismatch between 3D objects and 2D display is compensated by introducing------ |
| A. | viewing |
| B. | projection |
| C. | workstation |
| D. | 3d |
| Answer» A. viewing | |
| 350. |
In 3D viewing----transformation transforms the projection co ordinates into the device co ordinates. |
| A. | viewing |
| B. | projection |
| C. | workstation |
| D. | 3d |
| Answer» B. projection | |
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