CBSE Class 3 Computers NCO Olympiad MCQs with Answers Set A

1. Which of the following statements is/are incorrect about a computer?
(a) You can watch movies on it.
(b) You can solve your sums on it.
(c) You can play games on it.
(d) You can cook food with it
Answer : (d) You can cook food with it

2. The control unit of the computer controls the __________.
(a) Working of the computer keyboard
(b) Flow of electricity within the computer
(c) Complete workflow of the CPU.
(d) Control unit can take inputs and give output.
Answer : (c) Complete workflow of the CPU.

3. Which of the following statements is incorrect?
(a) Blu-ray disc is used as main memory in computers.
(b) ROM is a permanent memory.
(c) Auxiliary memory is also known as secondary storage device.
(d) Scanner is an image/ document scanning device.
Answer : (a) Blu-ray or Blu-ray Disc (BD) is a digital optical disc data storage format. It was designed to supersede the DVD format.

4. Designing is the process of deciding the look of something and now a day’s computers are used for designing, one can design ……. using computers.
(a) Metro train control system
(b) Blue print of Building
(c) Aircraft control system
(d) All of these.
Answer : (d) All of these.

5. Which of the following is an input device?

Answer : (b) Only (b) is the input device, which can be used to putting the input into the computer system.

6. Find the odd term out.
(a) Keyboard
(b) Mouse
(c) Monitor
(d) Joystick
Answer : (c) Only (c) is an output device and all other given options are input devices so monitor is the odd term.

7. Which among the following is a cursor control input device?

Answer : (a) A trackball is a computer cursor control device used in many notebook and laptop computers.

8. What is the full form of GPS?
(a) Global packet system.
(b) Geo positioning system.
(c) Geometrical position system
(d) Global positioning system.
Answer : (d) A GPS is a navigation system that provides the geographical information based on the data received by satellites

9. Select the INCORRECT match of brushes in MS-Paint of Windows 7 with their corresponding names.

(a) – Marker
(b) – Natural pencil
(c) – Oil brush
(d) – Calligraphy brush 1
Answer : (d) Option (d) is not matched correctly because name of image is watercolor brush and Calligraphy brush1 is denoted by image .

10. Which of the following brushes are present under Brushes tool in MS-Paint of Windows 7?
(a) Natural pencil, marker, crayon, water color, airbrush.
(b) Liquid color, marker, crayon, spray color, natural pencil.
(c) Doted color, marker color, crayon, spray color, wind color.
(d) Light color, Permanent marker, crayon, waterproof color, oil-proof color.
Answer : (a) Natural pencil, marker, crayon, water color, airbrush

11. Which of the following icons is used to draw perfect circle in MSPaint?

(c)

12. MS-Paint is a Windows program that is used for ________.
(a) Calculations
(b) Writing letters
(c) Drawing purposes
(d) Preparing presentations
Answer : (c) Drawing purposes

13. which of the following is NOT an example of search engine?

Answer : (b) Facebook is not a search engine because it is an American for-profit corporation and an online social media or social networking service.

14. Which of the following is not a web browser?
(a) Mozilla
(b) Internet Explorer
(c) Windows Explorer
(d) Chrome
Answer : (c) Windows Explorer is not a web browser because it displays the hierarchical structure of files, folders, and drives on your computer. It also shows any network drives that have been mapped to drive letters on your computer.

15. Internet is used
(a) To share information between connected computers.
(b) For searching the relevant information.
(c) For communication such as video conferencing
(d) All of these.
Answer : (d) All of these.

16. What is WWW (World Wide Web)?
(a) App
(b) Game
(c) Internet servers
(d) Another name of internet.
Answer : (c) It is basically a system of Internet servers that support specially formatted documents.

17. Which the given MS-word shortcuts with the operations they perform.
Column-1                                                        Column-2
(1) Undo the last operation                                (I) Ctrl + X
(2) Save a file                                                    (II) Ctrl + I
(3) Cut the selected text                                   (III) Ctrl + S
(4) Change selected text from normal to italic   (IV) Ctrl + Z

(a) 1-IV, 2-III, 3-I, 4-II
(b) 1-II, 2-IV, 3-I, 4-III
(c) 1-III, 2-IV, 3-II, 4-I
(d) 1-IV, 2-I, 3-II, 4-III
Answer : (a) 1-IV, 2-III, 3-I, 4-II

18. What is the codename of latest version of android7.0?
(a) Nougat
(b) Jelly Bean
(c) Lollipop
(d) Ice Cream Sandwich
Answer : (a) Android “Nougat” (codenamed N in-development) is the major 7.0 release of the Android operating system. It was first released as a developer preview on March 9, 2016

19. How you can change the font size in MS-word?
(a) Selecting the font and using the resizing handles.
(b) Font Size under Font on the home tab of the ribbon.
(c) Font size under the view tab of the ribbon
(d) you cannot change the font size after you have used the font .
Answer : (a) Selecting the font and using the resizing handles.

20. Predefined set of formatting options that have been named and saved are called……..
(a) Font Styles
(b) Format
(c) Toolbar
(d) View
Answer : (b) Format

21. Which of the following device is connected to software then converts human speech into commands or text?

Answer : (b)

22. Which of the following is used as a storage medium in portable handheld smart phone device?

Answer : (b) Micro SD card is used as a storage medium in portable hand-held smart phone device.

23. Pressing which key allow you to jump the cursor five spaces forward. Identify this device given below:
(a) Tab
(b) Space bar
(c) Delete
(d) Backspace
Answer : (a) Tab

24. Which of the following is a mobile phone accessory that is not an integral part of a smart phone but provide some support to take salfy and enhance its look .

Answer : (c)

25. An android mobile operating system was developed by…………
(a) Microsoft
(b) Google
(c) Apple Inc
(d) IBM
Answer : (b) Android is a mobile operating system developed by Google, based on the Linux kernel and designed primarily for touchscreen mobile devices such as smart-phones and tablets.