McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Electronics and Communication Engineering .
| 501. |
What are the types of polygon___________. |
| A. | convex polygon |
| B. | concave polygon |
| C. | both a & b |
| D. | none of these |
| Answer» C. both a & b | |
| 502. |
In which polygon object appears only partially________________. |
| A. | convex polygon |
| B. | concave polygon |
| C. | both a & b |
| D. | none |
| Answer» B. concave polygon | |
| 503. |
The rectangle space in which the world definition of region is displayed are called_______________. |
| A. | screen coordinate system |
| B. | clipping window or world window |
| C. | world coordinate system |
| D. | none of these |
| Answer» B. clipping window or world window | |
| 504. |
The process of cutting off the line which are outside the window are called__________. |
| A. | shear |
| B. | reflection |
| C. | clipping |
| D. | clipping window |
| Answer» C. clipping | |
| 505. |
The process of coloring the area of a polygon is called___________. |
| A. | polygon filling |
| B. | polygon flow |
| C. | aliasing |
| D. | none of these |
| Answer» A. polygon filling | |
| 506. |
The algorithm used for filling the interior of a polygon is called____________. |
| A. | flood fill algorithm |
| B. | boundary fill algorithm |
| C. | scan line polygon fill algorithm |
| D. | none of these |
| Answer» A. flood fill algorithm | |
| 507. |
If the pixel is already filled with desired color then leaves it otherwise fills it, this is called___________. |
| A. | flood fill algorithm |
| B. | boundary fill algorithm |
| C. | scan line polygon filling algorithm |
| D. | none of these |
| Answer» B. boundary fill algorithm | |
| 508. |
The process of mapping a world window in world coordinate system to viewport are called___________. |
| A. | transformation viewing |
| B. | view port |
| C. | clipping window |
| D. | screen coordinate system |
| Answer» A. transformation viewing | |
| 509. |
Some common form of clipping include__________. |
| A. | curve clipping |
| B. | point clipping |
| C. | polygon clipping |
| D. | all of these |
| Answer» D. all of these | |
| 510. |
An object can be viewed as a collection of___________. |
| A. | one segment |
| B. | two segment |
| C. | several segments |
| D. | none of these |
| Answer» C. several segments | |
| 511. |
Scaling of a polygon is done by computing____________. |
| A. | the product of (x, y) of each vertex |
| B. | (x, y) of end points |
| C. | center coordinates |
| D. | only a |
| Answer» D. only a | |
| 512. |
In the given point (x,y) and we want to access(x-1,y-1) in a single step we need to use_________. |
| A. | 4-connected |
| B. | 5-connected |
| C. | 6-connected |
| D. | 8-connected |
| Answer» D. 8-connected | |
| 513. |
Sutherland Hodgeman algorithm is used for_____________. |
| A. | polygon filling |
| B. | line clipping |
| C. | polygon clipping |
| D. | text clipping |
| Answer» C. polygon clipping | |
| 514. |
Which of the following is true with respect to Suther Hodge algorithm? |
| A. | it clips only concave polygons |
| B. | it is more time consuming and complex |
| C. | it may insert extra edges in resultant polygon |
| D. | none of these |
| Answer» C. it may insert extra edges in resultant polygon | |
| 515. |
Adjacent pixels are likely to have same characteristics. This property is referred as_______. |
| A. | property of coherence |
| B. | spacial coherence |
| C. | spatial coherence |
| D. | none of these |
| Answer» A. property of coherence | |
| 516. |
The algorithm used for filling the interior of a polygon is called |
| A. | flood fill algorithm |
| B. | boundary fill algorithm |
| C. | scan line polygon fill algorithm |
| D. | none of these |
| Answer» A. flood fill algorithm | |
| 517. |
If we want to recolor an area that is not defined within a single color boundary is known as_________. |
| A. | boundary-fill algorithm |
| B. | parallel curve algorithm |
| C. | flood-fill algorithm |
| D. | only b |
| Answer» C. flood-fill algorithm | |
| 518. |
A many sided figure is termed as_____. |
| A. | square |
| B. | polygon |
| C. | rectangle |
| D. | none |
| Answer» B. polygon | |
| 519. |
The function of scan line polygon fill algorithm are________. |
| A. | find intersection point of the boundary of polygon and scan line |
| B. | find intersection point of the boundary of polygon and point |
| C. | both a & b |
| D. | none of these |
| Answer» A. find intersection point of the boundary of polygon and scan line | |
| 520. |
If a line joining any two of its interior points lies not completely inside are called____________. |
| A. | convex polygon |
| B. | concave polygon |
| C. | both a & b |
| D. | none of these |
| Answer» B. concave polygon | |
| 521. |
Which things are mainly needed to make a polygon and to enter the polygon into display file_____. |
| A. | no of sides of polygon |
| B. | vertices points |
| C. | both a & b |
| D. | none of these |
| Answer» C. both a & b | |
| 522. |
Which approaches are used for determine whether a particular point is inside or outside of a polygon_____. |
| A. | even-odd method |
| B. | winding number method |
| C. | both a & b |
| D. | none of these |
| Answer» C. both a & b | |
| 523. |
In a given triangle, a(10, 10), B(20, 20), C(30, 10), the point P(28, 20) is______. |
| A. | inside the triangle |
| B. | outside the triangle |
| C. | on the vertex |
| D. | on the edge |
| Answer» B. outside the triangle | |
| 524. |
A Pixel is represented dy a tuple Xw,Yw,w in______. |
| A. | normalised device coordinates |
| B. | homogeneous coordinates system |
| C. | 3d coordinate system |
| D. | none of these |
| Answer» B. homogeneous coordinates system | |
| 525. |
If the angle Q is positive then the rotation direction will be _________. |
| A. | clockwise |
| B. | anticlockwise |
| C. | parallel |
| D. | perpendicular |
| Answer» B. anticlockwise | |
| 526. |
If we multiply any matrix A with identity matrix then we get the________matrix. |
| A. | identity matrix |
| B. | translation matrix |
| C. | scaling matrix |
| D. | original matrix |
| Answer» D. original matrix | |
| 527. |
Two consecutive transformation t1 and t2 are _________. |
| A. | additive |
| B. | substractive |
| C. | multiplicative |
| D. | none of these |
| Answer» A. additive | |
| 528. |
Two consecutive scaling transformation t1 and t2 are __________. |
| A. | additive |
| B. | substractive |
| C. | multiplicative |
| D. | none of these |
| Answer» C. multiplicative | |
| 529. |
Which of the following transformation is not used in rotation about arbitrary point in 2D? |
| A. | scaling |
| B. | rotation |
| C. | translation |
| D. | none of these |
| Answer» A. scaling | |
| 530. |
Two consecutive rotation transformation are always__________. |
| A. | additive |
| B. | subtractive |
| C. | multiplicative |
| D. | none of these |
| Answer» A. additive | |
| 531. |
Reflection about X-axis followed by reflection about Y-axis is equivalent to_______. |
| A. | reflection about line y= x |
| B. | reflection about origin |
| C. | reflection about line y=-x |
| D. | reflection about y-axis |
| Answer» B. reflection about origin | |
| 532. |
If a circle is scaled in only one direction then it will become___________. |
| A. | parabola |
| B. | hyperbola |
| C. | ellipse |
| D. | circle |
| Answer» C. ellipse | |
| 533. |
The result of two successive 2D rotations R(Q1) and R(Q2) is___________. |
| A. | r(q1+q2) |
| B. | r(q1.q2) |
| C. | r(q1-q2) |
| D. | r(q1/q2) |
| Answer» A. r(q1+q2) | |
| 534. |
If we take mirror reflection of a points(x,y) along the line Y=X then the point becomes________. |
| A. | (x,-y) |
| B. | (-y,-x) |
| C. | (-x,y) |
| D. | (y,x) |
| Answer» D. (y,x) | |
| 535. |
In X-shear transformation point(x,y)becomes_________. |
| A. | (x+yb,xa+y) |
| B. | (x+yb,y) |
| C. | (x,xa+y) |
| D. | none of these |
| Answer» B. (x+yb,y) | |
| 536. |
Shear transformation can be formed by scaling and rotation,justify True or False . |
| A. | true |
| B. | false |
| C. | not always |
| D. | none of these |
| Answer» A. true | |
| 537. |
Which transformation needs homogeneous coordinates to represent it in Matrix from? |
| A. | scaling |
| B. | rotation |
| C. | translation |
| D. | reflection |
| Answer» C. translation | |
| 538. |
Any 2D point in homogeneous coordinates is represented in a matix form with dimension as________. |
| A. | 1*2 |
| B. | 2*1 |
| C. | 1*3 |
| D. | 3*1 |
| Answer» C. 1*3 | |
| 539. |
If we need to tilt the 2D object in one direction then we have to use_____transformation. |
| A. | scaling |
| B. | translation |
| C. | shear |
| D. | rotation |
| Answer» C. shear | |
| 540. |
In Scaling transformation Sx Indicate______. |
| A. | scaling factor along x axis |
| B. | translation factor along x axis |
| C. | tilting factor along x axis |
| D. | none of these |
| Answer» A. scaling factor along x axis | |
| 541. |
A point x(2,3) is reprensented in homogeneous coordinates as_________. |
| A. | (2,3) |
| B. | (2,3,1) |
| C. | (2,3,1) |
| D. | (2,3,0) |
| Answer» C. (2,3,1) | |
| 542. |
The transformation matrix is used for__________. |
| A. | reflection at x axis |
| B. | reflection at y axis |
| C. | reflection at origin |
| D. | reflection at line y=x |
| Answer» C. reflection at origin | |
| 543. |
The transformation matrix is used for_____________. |
| A. | scaling |
| B. | y-shear |
| C. | x-shear |
| D. | none of these |
| Answer» B. y-shear | |
| 544. |
In 3D viewing, mismatch between 3D objects and 2D displays is compensated by introducing_________. |
| A. | transformation |
| B. | projection |
| C. | rotation |
| D. | translation |
| Answer» B. projection | |
| 545. |
In 3D viewing, ____________-transformation transforms the projection co-ordinates into the device coordinates. |
| A. | viewing |
| B. | projection |
| C. | workstation |
| D. | 3d |
| Answer» C. workstation | |
| 546. |
Two Basic ways of projecting objects onto the view plane are _________ and _______- . |
| A. | serial, parallel |
| B. | serial,perspective |
| C. | parallel, perspective |
| D. | none of these |
| Answer» C. parallel, perspective | |
| 547. |
_____________ projection produce the realistic views but does not preserves relative proportions. |
| A. | serial |
| B. | perspective |
| C. | parallel |
| D. | any |
| Answer» C. parallel | |
| 548. |
When the direction of the projection is not perpendicular to the view plane , we have an _______ parallel projection. |
| A. | serial |
| B. | orthographic |
| C. | oblique |
| D. | none of these |
| Answer» C. oblique | |
| 549. |
The foreshortening factor is the ratio of the ____________. |
| A. | actual length of line to its projected length |
| B. | projected length of line to its true length |
| C. | a or b |
| D. | none of these |
| Answer» B. projected length of line to its true length | |
| 550. |
The oblique projections are classified as ______ and ___________ projections. |
| A. | cavalier and cabinet |
| B. | serial & parallel |
| C. | parallel & perspective |
| D. | isometric & dimetric |
| Answer» A. cavalier and cabinet | |
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