CBSE Class 3 Computers NCO Olympiad MCQs with Answers Set C

1. The working of Central processing unit (CPU) is compared with which of the following organs of human body?

Answer : (b) CPU is called as brain of the computer because it processes all the instructions given to the computer to perform its tasks.

2. Which of the following is the image of Abacus?

Answer : (a) The given image in option (a) is an abacus and it is also called a counting frame, is a calculating tool that was in use in Europe, China and Russia, centuries before the adoption of the written Hindu–Arabic numeral system.

3. Match the following columns.
                      Column-1                                                                                                   Column-2
(1) The device which provides power to a computer (If there is a power failure).     (i) Hard
(2) The scan image and printed text convert into digital image is known as             (ii) UPS
(3) It helps up to point at andselects things on computer screen.                              (iii) Scanner
(4) It store the data permanently                                                                                     (iv) Mouse.
(a) 1-ii, 2-iii, 3-iv, 4-i
(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-ii, 2-iii, 3-iv, 4-i

4 Which of the following is a multifunction device, it consists of printer, scanner, fax and photocopier?

Answer : (c)

5. Match the column-1 and column-2 given in the following table. Choose the correct option.

(a) (i-3, ii-4, iii-1, iv-2)
(b) (i-2, ii-1, iii-4, iv-3)
(c) (i-4, ii-3, iii-2, iv-1)
(d) (i-1, ii-4, iii-2, iv-3)
Answer : (a) (i-3, ii-4, iii-1, iv-2)

6. Which of the following is/are the toggle key?

Answer : (d)

7. In colors group of the Home tab, when you click color 1 and then a color square in the color palette, what is most likely to happen in MS-Paint?

(a) It changes the background color of the drawing.
(b) It changes the color of recently closed file.
(c) It changes the background color selection.
(d) It sets the new color as the foreground color.
Answer : (d) The color 1 box represents the foreground color in paint program, so after clicking the color1 box, if any color is selected from the color palette then the new color is set as the foreground color.

8. The site Wikipedia.org provides a …………….
(a) Online encyclopedia.
(b) Online news.
(c) Online dictionary
(d) Online game.
Answer : (a) Wikipedia is a free online encyclopedia created and edited by volunteers around the world and hosted by the Wikimedia Foundation. 

9. What is online?
(a) When you are connected to the internet through ISP or a network.
(b) When you yourself go on the internet.
(c) When you are connected to a telephone.
(d) None of these.
Answer : (a) When you are connected to the internet through ISP or a network.

10. How to open two and more file simultaneously?
(a) Press (ctrl + o) keys and then select two or more files which you want to open.
(b) Type 2 or more digit number in Run Box and press enter key.
(c) Press (ctrl + shift + o) keys and then select two files which you want to open.
(d) Both (b) & (c).
Answer : (a) When we pressing (Ctrl + o) keys, the open dialog box is displayed, from here you can select as many files as you want to open, hold ctrl key while selecting more than one file.

11. Ram wants to create a shortcut for MS-Word, so that he can quickly access it. But he does not know the correct sequence of steps required to follow to create a desktop shortcut. Help his by rearranging the given steps in the CORRECT order.
1. Select/click All Programs
2. Click Microsoft Office folder
3. Click Desktop (create shortcut) option
4. Click on Start button
5. Right click
6. Go to Microsoft Word 2010
(a) 4 1 2 6 5 3
(b) 1 2 4 3 6 5
(c) 4 3 2 1 5 6
(d) 6 1 5 2 4 3
Answer : (a) 4 1 2 6 5 3

12. To change the margins of the document, you should use the……………
(a) Home tab of the ribbon and click margins.
(b) Page Layout tab on the ribbon and click margins.
(c) Design tab of the ribbon. 
(d) Page setup tab of the ribbon.
Answer : (b) To change the margins of the document, you should use the
(1) Click the Page Layout tab on the Ribbon, and then select the Margins command.
(2) Select the desired margin size from the drop-down menu.

13. Which of the following statements is/are correct about the given device?
1. It is a general purpose personal computer.
2. It has monitor, keyboard, touch pad, CD/DVD drive, and hard drive.
3. It is a battery operated package.

(a) Only (1)
(b) Both (2) & (3).
(c) Both (1) & (2).
(d) All (1), (2) & (3).
Answer : (d) All (1), (2) & (3).

14. Match the famous people names in column-1 with their developments in column-2:
           Column-I                    Column-II
(1) Lady Ada Lovelace      (i) Facebook
(2) John Napier                 (ii) Microsoft
(3) Mark Zuckerberg         (iii) Napier’s bones
(4) Bill Gates                     (iv) First computer program.
(d) All (1), (2) & (3).
(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 : (d) All (1), (2) & (3).

15. Which of the following device is found inside laptops and desktop computers?

Answer : (b) A hard drive is fixed inside the CPU cabinet in desktops and laptops computers.

16. Which of the following statements is/are correct about the given device?
1. It controls all the functions of CPU.
2. It is known as processor and also says brain of computer.

(a) Only (1)
(b) Only (2)
(c) Both (1) & (2)
(d) Neither (1) Nor (2)
Answer : (c) Both (1) & (2)

17 A computer should be protected from………………. .
(a) Dust
(b) Water
(c) Oil items
(d) All of these.
Answer : (d) All of these.

18. Which of the following is/are correct with respect to save as commands?
(i) Save as command allows you to save all the changes to the file using different name.
(ii) By default file is saving as word document.
(a) Both (I) & (II).
(b) Only (II)
(c) Only (I)
(d) Neither (I) nor (II).
Answer : (a) Both (I) & (II).

19. Identify the name of built-in app with respect to Windows 8.1

(a) World
(b) People
(c) Mail
(d) Chat
Answer : (b) People

20. What does the following display?

(a) The Home Screen of Windows 8
(b) The Home Screen of Windows mobile
(c) The Start Screen of Windows 8.1
(d) The Charms menu on Windows 8
Answer : (b) The Home Screen of Windows mobile

21. Which of the following statements is/are correct for the main features of windows 10?
I. Being lazy just got a lot easier.
II. Xbox & Universal App.
III. Improved Multitasking.
(a) Only (III)
(b) Both (II) & (III)
(c) (I), (II) & (III)
(d) None of these.
Answer : (c) (I), (II) & (III)

22. Cloud is an online file storage service given by…………
(a) IBM
(b) Microsoft
(c) Google
(d) Apple
Answer : (b) Microsoft One-Drive launches worldwide; free cloud storage service provides one place for everything in your life.

23. What is the name of the component of MS-word 2010, that indicated by arrow, shown in figure below:

(a) Quick access tool-bar
(b) Status-bar
(c) Ruler
(d) MS-office button
Answer : (d) MS-office button

24 Select the odd one out.

(a) Except Option (a), all are the digital payment services and option (a) is Google play and it is used for downloading apps.

25. What is the latest version of windows operating system?
(a) Windows 8.1
(b) Windows 10
(c) Windows 10.2
(d) Windows 8
Answer : (b) Windows 10