MCQ on Input and Output Devices – Computer GK
Useful and informative MCQ on Input and Output Devices – Computer GK that includes topics like Input Devices – Keyboard, Mouse, Scanner, Joy Stick, Track Ball, Light pen, Graphic Tablet, Microphone, etc. and Output Devices – Monitor, Printer, Plotter, Projector, Speakers, Headphones, etc.
These MCQ on Input and Output Devices – Computer GK are very helpful for competitive exams such as CPCT, GATE, IES/ESE, IBPS PO, IBPS Clerk, SBI PO, SBI Clerk, RBI, SEBI, LIC, NICL, BCA, B.Sc. IT, DCA, SSC, RRB, NIELIT CCC, CTET, UDC NET, CUET, MCA, PGDCA, MCS, TET, State Police, BPO, etc.
These MCQ on Input and Output Devices – Computer GK have correct answers and brief explanations of each question for better understanding.
Q31. Which of the following is a type of 3D printer?
a) Fused Deposition Modeling (FDM)
b) Stereolithography (SLA)
c) Selective Laser Sintering (SLS)
d) All of the above
Show Answer
Correct Answer: d) All of the above
Explanation: Fused Deposition Modeling (FDM), Stereolithography (SLA), and Selective Laser Sintering (SLS) are all types of 3D printers. Each of these technologies uses a different method to create three-dimensional objects layer by layer from various materials, such as plastics, metals, and ceramics.
Q32. Which of the following is a type of projector?
a) LCD Projector
b) DLP Projector
c) LED Projector
d) All of the above
Show Answer
Correct Answer: d) All of the above
Explanation: LCD (Liquid Crystal Display), DLP (Digital Light Processing), and LED (Light Emitting Diode) are all types of projectors. Each of these technologies uses a different method to project images onto a screen or surface, providing various levels of image quality, brightness, and color accuracy.
Q33. What is the primary function of a Voice Response System (VRS)?
a) To display visual output
b) To provide a graphical user interface
c) To allow users to interact with a computer-operated telephone system
d) To capture images and convert them into digital format
Show Answer
Correct Answer: c) To allow users to interact with a computer-operated telephone system
Explanation: A Voice Response System (VRS) is an automated telephone system that allows users to interact with a computer-operated telephone system through voice commands or keypad input. VRS can provide pre-recorded voice responses, access to relevant data, and even record voice input for later use.
Q34. Which of the following is a type of 3D printer that uses a laser to selectively cure a layer of resin?
a) Fused Deposition Modeling (FDM)
b) Stereolithography (SLA)
c) Selective Laser Sintering (SLS)
d) Digital Light Processing (DLP)
Show Answer
Correct Answer: b) Stereolithography (SLA)
Explanation: Stereolithography (SLA) is a type of 3D printer that uses a laser to selectively cure a layer of resin. The cured resin forms a solid layer, and the process is repeated for each layer until the entire object is complete. SLA printers can produce highly detailed and accurate parts with smooth surface finishes.
Q35. Which type of projector uses a blue-violet laser to read and write data?
a) CD-ROM
b) DVD
c) Blu-ray
d) DLP
Show Answer
Correct Answer: c) Blu-ray
Explanation: Blu-ray projectors use a blue-violet laser to read and write data, allowing for higher storage capacities and faster data transfer rates compared to CDs and DVDs. Blu-ray projectors are commonly used for displaying high-definition video content, such as movies and video games.
Q36. Which of the following is a type of 3D printer that uses a heated nozzle to extrude molten plastic onto a build platform?
a) Fused Deposition Modeling (FDM)
b) Stereolithography (SLA)
c) Selective Laser Sintering (SLS)
d) Digital Light Processing (DLP)
Show Answer
Correct Answer: a) Fused Deposition Modeling (FDM)
Explanation: Fused Deposition Modeling (FDM) is a type of 3D printer that uses a heated nozzle to extrude molten plastic onto a build platform. The plastic is deposited layer by layer, and the build platform moves downward as each layer is completed. FDM printers are widely used for creating prototypes, functional parts, and complex geometries.
Q37. Which type of projector uses a lamp to project an image onto a screen?
a) LCD Projector
b) DLP Projector
c) LED Projector
d) Laser Projector
Show Answer
Correct Answer: a) LCD Projector
Explanation: LCD projectors use a lamp to project an image onto a screen. They work by passing light through a series of liquid crystal panels, which modulate the light to create the desired image. LCD projectors are known for their high colour accuracy and image quality.
Q38. What is the primary function of a 3D printer?
a) To display visual output
b) To provide a graphical user interface
c) To create three-dimensional objects layer by layer
d) To capture images and convert them into digital format
Show Answer
Correct Answer: c) To create three-dimensional objects layer by layer
Explanation: The primary function of a 3D printer is to create three-dimensional objects layer by layer from various materials, such as plastics, metals, and ceramics. 3D printers use different technologies, such as Fused Deposition Modeling (FDM), Stereolithography (SLA), and Selective Laser Sintering (SLS), to build objects based on digital models.
Q39. Which type of projector uses a laser to project an image onto a screen?
a) LCD Projector
b) DLP Projector
c) LED Projector
d) Laser Projector
Show Answer
Correct Answer: d) Laser Projector
Explanation: Laser projectors use a laser light source to project an image onto a screen. They offer several advantages over traditional lamp-based projectors, such as longer lifespan, lower power consumption, and instant on/off capabilities. Laser projectors are commonly used in professional settings, such as conference rooms and large venues.
Q40. Which of the following is a type of 3D printer that uses a laser to selectively sinter powdered material?
a) Fused Deposition Modeling (FDM)
b) Stereolithography (SLA)
c) Selective Laser Sintering (SLS)
d) Digital Light Processing (DLP)
Show Answer
Correct Answer: c) Selective Laser Sintering (SLS)
Explanation: Selective Laser Sintering (SLS) is a type of 3D printer that uses a laser to selectively sinter powdered material, such as plastic or metal, to create a solid object. The process involves spreading a thin layer of powder onto a build platform and using a laser to selectively sinter the powder according to the digital model. The build platform then moves downward, and a new layer of powder is spread on top. This process is repeated until the entire object is complete.
More MCQ on Computer GK for Competitive Exams
- Introduction to Computer
- Basic Computer Organization
- Number Systems
- Computer Codes
- Processor and Memory
- Secondary Storage Devices
- Input and Output Devices
- Computer Software
- Flowchart and Computer Languages
- System Implementation
- Operating Systems
- Application Software Packages
- Business Data Processing
- Communications and Networks
- Internet Concepts and IoT
- Multimedia and File Extensions
- Classification of Computers
- Cyber Safety and Cyber Crime
- Computer Viruses and Security
- Basic Computer Shortcut Keys
- Shortcut Keys for Windows
- Shortcut Keys for MS Excel
- Shortcut Keys for MS Word
- Computer Abbreviations Set 1
- Computer Abbreviations Set 2
- Computer Abbreviations Set 3
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