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Home » Engineering » Computer Science » Aptitude Test - 14
1.Which is used for 3D positioning and modeling, animation and other application ?
A. Space ball
B. Trackball
C. Spac ball
D. Space ball
2.Potentiometers mounted at the base of the joystick measures ?
A. The amount of movement
B. The direction
C. Position
D. The amount of movement
3.Pressure-sensitive joysticks are also called ?
A. Non movable stick
B. Joystick
C. Isometric joystick
D. Non movable stick
4.Which is the device that is constructed with the series of sensors that detects hand and finger motion ?
A. Digitizers
B. Data glove
C. Joystick
D. Digitizers
5.A common device for drawing, painting, or interactively selecting coordinate positions on an object is a ?
A. Image scanner
B. Digitizers
C. Data glove
D. Image scanner
6.Which device is used to input two-dimensional coordinates by activating a hand cursor on a flat surface ?
A. Graphic tablet
B. Data tablet
C. Both A & B
D. Graphic tablet
7.Which can be used to determine the position on the data tablet ?
A. Strip microphones
B. Signal strength
C. Coded pulse
D. Strip microphones
8.Which allows screen positions to be selected with the touch of a finger ?
A. Touch panels
B. Image scanner
C. Light pen
D. Touch panels
9.What is the disadvantage of the light pen ?
A. It’s shape
B. They cannot detect positions
C. Accurate reading
D. It’s shape
10.Which is used in graphics workstation as input devices to accept voice commands ?
A. Touch panels
B. Speech recognizer
C. Both A & B
D. Touch panels
11.What voice the use of voice system?
A. To initiate graphics operation
B. To enter data
C. Both A & B
D. To initiate graphics operation
12.When a voice command is given, the system searches the for a frequency-pattern match ?
A. Memory
B. Input data
C. Dictionary
D. Memory
13.The device which is designed to minimize the background sound is ?
A. Microphone
B. Digitizers
C. Data glove
D. Microphone
14.The quality of a picture obtained from a device depends on ?
A. Dot size
B. Number of dots per inch
C. Number of lines per inch
D. Dot size
15.Which of the following device is not the input device ?
A. Trackball and space ball
B. Data glove
C. Impact printers
D. Trackball and space ball
16.Which device contains thumb-wheel, trackball and a standard mouse ball ?
A. Z mouse
B. Joystick
C. Mouse
D. Z mouse
17.Virtual reality, CAD, and animations are the application of ?
A. Z mouse
B. Digitizers
C. Data tablets
D. Z mouse
18.The Cartesian slope-intercept equation for a straight line is ?
A. y = m.x + b
B. y = b.x + m
C. y = x.x + m
D. y = m.x + b
19.For lines with slope magnitude |m|<1, ?x can be ?
A. A set corresponding vertical deflection
B. A set proportional to a small horizontal deflection voltage
C. Both A & B
D. A set corresponding vertical deflection
20.On raster system, lines are plotted with ?
A. Lines
B. Dots
C. Pixels
D. Lines
21.Expansion of line DDA algorithm is ?
A. Digital difference analyzer
B. Direct differential analyzer
C. Digital differential analyzer
D. Digital difference analyzer
22.Which algorithm is a faster method for calculating pixel positions?
A. Bresenham’s line algorithm
B. Parallel line algorithm
C. Mid-point algorithm
D. Bresenham’s line algorithm
23.The disadvantage of lineDDA is ?
A. Time consuming
B. Faster
C. Both A & B
D. Time consuming
24.An accurate and efficient raster line-generating algorithm is ?
A. DDA algorithm
B. Mid-point algorithm
C. Parallel line algorithm
D. DDA algorithm
25.In Bresenham’s line algorithm, if the distances d1 < d2 then decision parameter Pk is ?
A. Positive
B. Equal
C. Negative
D. Positive
26.Which is the best line algorithm to balance the processing load among the processors ?
A. Parallel line algorithm
B. DDA line algorithm
C. Bresenham’s line algorithm
D. Parallel line algorithm
27.The algorithm which uses multiple processors to calculate pixel positions is ?
A. Midpoint algorithm
B. Parallel line algorithm
C. Bresenham’s line algorithm
D. Midpoint algorithm
28.Coordinate references in the polyline function are stated as ?
A. Relative coordinate values
B. Absolute coordinate values
C. Current position
D. Relative coordinate values
29.To apply the midpoint method, we define ?
A. ?circle(x, y)= x 2+ y 2-? r?2
B. ?circle(x, y)= x+ y2-? r?2
C. ?circle(x, y)= x2– y2-? r?2
D. ?circle(x, y)= x 2+ y 2-? r?2
30.Which is defined as set of points such that the sum of the distances is same for all points ?
A. Ellipses
B. Lines
C. Circles
D. Ellipses
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