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MCQ | Graphics Hardware and Display Devices in Computer Graphics
Multiple choice questions and answers (MCQ) based on the graphics hardware and display devices in computer graphics with 4 choices, correct answer and explanation.
Submitted by IncludeHelp, on April 09, 2021
Question 1: Which of the following is defined by the number of pixels present in the frame buffer?
- Resolution
- Depth
- Both a. and b.
- None of the above
Answer: a. Resolution
Explanation:
The number of pixels in the frame buffer determines the resolution of the image.
Question 2: Consider the following statement:
"The limited range of number of points that can be displayed without overlap on a CRT."
Determine whether the given condition is true or false.
- True
- False
- Can't be determined
Answer: a. True
Explanation:
The given statement is true as maximum number of points can be displayed without overlap on a CRT, and is called as Resolution.
Question 3: Which of the following defines the mapping of points from some domain to bits?
- Pix-map
- Graph
- Bitmap
- All of the mentioned
Answer: c. Bitmap
Explanation:
Bit map frame buffer is always 1 bit per pixel and it defines the mapping of points from domain to bits. It is also referred to as a bit array.
Question 4: Which of the following statements best define Scan conversion?
- The process of digitizing a known picture definition into a set of pixel-intensity for storage in the frame buffer.
- Encoding the pixels into bits
- Converting the draw able image into a graphical image
- None of the above
Answer: a. The process of digitizing a known picture definition into a set of pixel-intensity for storage in the frame buffer.
Explanation:
The process of digitizing a given picture definition into a set of pixel-intensity for storage in the frame buffer is called Scan conversion.
Question 5: In which of the following parts of the cathode ray tube, is a huge amount of heat released to the cathode by directing a current through a coil of wire?
- Electron gun
- Phosphorus coated tube
- Filament
- Anode and cathode
Answer: c. Filament
Explanation:
In CRT, the filament is responsible to supply power when an electron gun release the electron then it focusing to hit the phosphorus screen to display the picture.
Question 6: In a graphical user interface, the most common input device is,
- Mouse
- Keyboard
- Monitor
- Joy stick
Answer: a. Mouse
Explanation:
Nowadays, a mouse is a most widely used input device. It enables the user to give commands to the computer system by simply clicking. A mouse has two buttons left and right, these are used as per need.
Question 7: Which display device allows a user to move around an object and can be shown it from different angles?
- Flat Panel Display Devices
- Direct View Storage Tubes
- 3D Devices
- CRT
Answer: c. 3D Devices
Explanation:
The usage of 3D display devices helps the consumer to display an object from different angles.
Question 8: Which devices provide the graphics framework with positional data?
- Output devices
- Storage devices
- Input devices
- Both B and C
Answer: c. Input devices
Explanation:
Input devices are the devices which provide the graphics framework with positional data.
Question 9: DVST stands for
- Direct View Storage Tube
- Digital View Storing Time
- Direct Visual Storing Tube
- Digital View Storage Tube
Answer: a. Direct View Storage Tube
Explanation:
DVST stands for Direct View Storage Tube. DVST is a graphical display device that didn't need to be refreshed to keep an image.
Question 10: The amount of pixels contained in a graphics system's frame buffer is referred to as,
- Resolution
- Screen Size
- Screen Color
- None of the above mentioned
Answer: a. Resolution
Explanation:
A screen resolution can be determined by the number of pixels. If a display system contains good quantity of pixels, it means the visibility of the screen will be highly clear.
Question 11: An instrument that transforms electrical energy into light are referred to as,
- Liquid Crystal Display
- Light Crystal Display
- Liquid Crystal Diode
- None of the above mentioned
Answer: a. Liquid Crystal Display
Explanation:
Liquid Crystal Display transforms electrical energy into light.
Question 12: Raster Scan Displays is used to describe,
- Screen
- Display
- Matrix
- Array
Answer: c. Matrix
Explanation:
Raster Scan Display is based on television technology.
Raster Scan Display is a type of most common graphics monitor. In this system an electron beam sweeps across the system screen from top to bottom manner and covers one row at a time.
Question 13: The translation of a specified picture description into a series of pixel-intensity values for storage in the frame buffer is known as digitization, it is also known as ...,
- Scan conversion
- Randomization
- Rasterization
- Encoding
Answer: a. Scan conversion
Explanation:
The translation of a specified picture description into a series of pixel-intensity values for storage in the frame buffer is known as digitization, it is also known as Scan conversion.
Question 14: A most suitable feature of a Graphics Card is to,
- Send graphical data to the output unit
- Receive graphical data to the input unit
- Send graphical data from output unit
- Receive graphical data to the output device
Answer: a. Send graphical data to the output unit
Explanation:
The Graphics Card is used to send graphical data to the output unit.
Question 15: In a graphics system, the most prominent output device is,
- VDU (Visual Display Unit)
- Printer
- Joystick
- None of the above mentioned
Answer: a. VDU (Visual Display Unit)
Explanation:
In a graphics system, the most prominent output device is a VDU (Visual Display Unit).
Question 16: Which controller is used in the frame buffer?
- Display controller
- Data controller
- Digital controller
- None of the above mentioned
Answer: b. Data controller
Explanation:
A frame buffer is an area of memory used to store detail description about the display of pixels. Data controller is used in the frame buffer.
Question 17: RGB models are used for,
- Graphical display
- Graphical error
- Graphical system
- None of the above mentioned
Answer: a. Graphical display
Explanation:
The model's name is formed from the letters R, G, and B, which stand for the three-additive primary colors Red, Green, and Blue. The RGB colour model is mainly used in electronic systems for image sensing, representation, and display.
Question 18: A display controller converts 0s and 1s to the ...
- Display Devices
- Video signal
- Text wrapping
- None of the above mentioned
Answer: b. Video signal
Explanation:
The display device's function is regulated by the Display Controller. A video display controller is an integrated circuit which is a main component of a video signal generator.
Question 19: A video display device with the smallest height, lowest power usage, and lightest weight is -
- LED display device
- CRT display device
- Flat panel display device
- None of the above mentioned
Answer: b. CRT display device
Explanation:
A flat-panel display is a type of video display that has a smaller size, weight, and power consumption than a CRT display.
Question 20: A graphic systems core hardware components are,
- Display Processor and CPU
- Output device and Input
- Display devices, recorder
- None of above mentioned
Answer: a. Display Processor and CPU
Explanation:
The core hardware components of graphic systems are Motherboard, CPU, RAM Memory, IO Machine, Power Supply; Video Monitor Controller, Bus, And Hard Disc Drive.
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