R4RIN – MCQs, Mock Tests | Computer Hardware and Networking Graphics Hardware and Display devices Input Devices

Which devices provides positional information to the graphics system ?

1. Input devices
2. Output devices
3. Pointing devices
4. Both a and c

✅ Correct Answer: 4

The number of pixels stored in the frame buffer of a graphics system is known as

1. Resolution
2. Depth
3. Resalution
4. Only a

✅ Correct Answer: 4

In graphical system the array of pixels in the picture are stored in

1. Memory
2. Frame buffer
3. Processor
4. All of the mentioned

✅ Correct Answer: 1

Heat supplied to the cathode by directing a current through a coil of wire is called

1. Electron gun
2. Electron beam
3. Filament
4. Anode and cathode

✅ Correct Answer: 3

The maximum number of points that can be displayed without overlap on a CRT is referred as

1. Picture
2. Resolution
3. Persistence
4. Neither b nor c

✅ Correct Answer: 2

________ stores the picture information as a charge distribution behind the phosphor-coated screen.

1. Cathode ray tube
2. Direct-view storage tube
3. Flat panel displays
4. 3D viewing device

✅ Correct Answer: 2

The devices which converts the electrical energy into light is called

1. Liquid-crystal displays
2. Non-emitters
3. Plasma panels
4. Emitters

✅ Correct Answer: 4

In which system the Shadow mask methods are commonly used

1. Raster-scan system
2. Random-scan system
3. Only b
4. Both a and b

✅ Correct Answer: 1

The process of digitizing a given picture definition into a set of pixel-intensity for storage in the frame buffer is called

1. Rasterization
2. Encoding
3. Scan conversion
4. True color system

✅ Correct Answer: 3

Which display devices allows us to walk around an object and view it from different sides.

1. Direct view storage tubes
2. Three-dimensional devices
3. Flat panel display devices
4. Plasma panel display devices

✅ Correct Answer: 2

In LCD the refresh rate of the screen is

1. 60 frames/sec
2. 80 frames/sec
3. 30 frames/sec
4. 100 frames/sec

✅ Correct Answer: 1

Random-scan system mainly designed for

1. Realistic shaded screen
2. Fog effect
3. Line-drawing applications
4. Only b

✅ Correct Answer: 3

The primary output device in a graphics system is_________

1. Scanner
2. Video monitor
3. Neither a nor b
4. Printer

✅ Correct Answer: 2

On a black and white system with one bit per pixel the frame buffer is commonly called as

1. Pix map
2. Multi map
3. Bitmap
4. All of the mentioned

✅ Correct Answer: 3

Aspect ratio means

1. Number of pixels
2. Ratio of vertical points to horizontal points
3. Ratio of horizontal points to vertical points
4.

✅ Correct Answer: 4

The most commonly used input device is

1. Mouse
2. Keyboard
3. Scanner
4. Printer

✅ Correct Answer: 2

Which keys allows user to enter frequently used operations in a single key stroke?

1. Function keys
2. Cursor control keys
3. Trackball
4. Control keys

✅ Correct Answer: 1

________ are used to measure dial rotations.

1. Potentiometers
2. Volta meter
3. Parameter
4. Only a

✅ Correct Answer: 4

The device which is used to position the screen cursor is

1. Mouse
2. Joystick
3. Data glove
4. Both a and c

✅ Correct Answer: 1

______ is used for detecting mouse motion.

1. Optical sensor
2. Rollers on the bottom of mouse
3. Both a and b
4. Sensor

✅ Correct Answer: 3

Trackball is

1. Two-dimensional positioning device
2. Three- dimensional positioning device
3. Pointing device
4. None of the mentioned

✅ Correct Answer: 1

Space ball provide________ degree of freedom.

1. 10 degree
2. 6 degree
3. 8 degree
4. 12 degree

✅ Correct Answer: 2

Which is the ball that can be rotated with the fingers or palm of the hand?

1. Space ball
2. Trackball
3. Only a
4. oth b and c

✅ Correct Answer: 2

_______ is used for 3D positioning and modeling animation and other application.

1. Trackball
2. Spac ball
3. All of the mentioned
4. None of the mentioned

✅ Correct Answer: 1

Potentiometers mounted at the base of the joystick measures

1. The amount of movement
2. The direction
3. Position
4. Resolution

✅ Correct Answer: 1