Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 642 · 40 questions

Remember (Find the topic, use the idea): Read the question and find its topic: hardware or software, units, memory, files, or editing text. Use that lesson’s idea — can you touch it, multiply to change units, RAM forgets, which file action, which shortcut. For unit sums, write the rule first (1 byte = 8 bits, 1 KB = 1024 bytes) and then multiply.

1. 1.📄 A file name ends in .mkv. What is it most likely? (a) a picture (b) a video (c) a document (d) a sound
2. 2.☁️ Saving files on the internet to use from anywhere is called ___. (a) rain storage (b) cloud storage (c) paper storage (d) box storage
3. 3.Which shortcut do we press to redo? (a) Ctrl+V (b) Ctrl+S (c) Ctrl+Y (d) Ctrl+X
4. 4.🧩 Is a word processor hardware or software? (a) software (b) hardware
5. 5.✋ Which can we touch: hardware or software? (a) software (b) hardware
6. 6.🧩 Is a calculator app hardware or software? (a) hardware (b) software
7. 7.💾 Which is bigger: 1 bit or 1 GB? (a) 1 bit (b) 1 GB
8. 8.⌨️ In a word processor, what does Ctrl+V do? (a) copy (b) cut (c) undo (d) paste
9. 9.📁 Which word means to “make an exact twin” (for a file or folder)? (a) create (b) copy (c) open (d) move
10. 10.🔌 The power goes off suddenly. Which loses the unsaved work? (a) the memory card (b) RAM (c) the hard disk (d) the pen drive
11. 11.💾 How many bytes are there in 2 KB?
12. 12.✂️ You want to move a sentence to the end. What do you use first? (a) Print (b) Undo (c) Cut (d) Delete
13. 13.True or false: to rename a file means to give it a new name. (a) False (b) True
14. 14.⌨️ In a word processor, what does Ctrl+A do? (a) select all (b) print (c) undo (d) cut
15. 15.🔍 Which is the odd one out? (a) a scanner (b) a web browser (c) a keyboard (d) a speaker
16. 16.💾 Which is bigger: 1 TB or 1 KB? (a) 1 TB (b) 1 KB
17. 17.🔍 Which is the odd one out? (a) a hard disk (b) a monitor (c) a keyboard (d) a word processor
18. 18.💾 How many MB are there in 1 GB?
19. 19.🧩 Is a mouse hardware or software? (a) software (b) hardware
20. 20.💡 What is the smallest unit of computer memory? (a) byte (b) GB (c) KB (d) bit
21. 21.📋 You want the same sentence in two places. What do you use first? (a) Delete (b) Copy (c) Undo (d) Backspace
22. 22.What does it mean to move a file? (a) put it in another place (b) make a brand-new one (c) throw it away (d) get rid of it
23. 23.💾 Which one holds apps that are open: RAM or storage? (a) RAM (b) storage
24. 24.💾 Which is smaller: 1 MB or 1 byte? (a) 1 MB (b) 1 byte
25. 25.💾 Which one keeps data when off: RAM or storage? (a) RAM (b) storage
26. 26.Which of these is true of RAM? (a) keeps data when off (b) is temporary memory (c) is permanent storage (d) keeps photos for years
27. 27.🧰 Is a printer a storage, input or output device? (a) a storage device (b) an output device (c) an input device
28. 28.⌨️ In a word processor, what does Ctrl+X do? (a) copy (b) redo (c) paste (d) cut
29. 29.Which file ending is a document? (a) .txt (b) .png (c) .avi (d) .gif
30. 30.🧾 Software is a set of ___ for the computer. (a) buttons (b) screws (c) wires (d) instructions
31. 31.📁 Which word means to “get rid of it” (for a file or folder)? (a) copy (b) open (c) create (d) delete
32. 32.🔢 A bit can be only 0 or ___. (a) 2 (b) 9 (c) 1 (d) 5
33. 33.🔍 Which is the odd one out? (a) a computer game (b) a mouse (c) a scanner (d) a speaker
34. 34.True or false: storage (like a hard disk) is temporary memory. (a) False (b) True
35. 35.💾 Which is smaller: 1 KB or 1 bit? (a) 1 KB (b) 1 bit
36. 36.⌨️ In a word processor, what does Ctrl+S do? (a) save (b) redo (c) paste (d) select all
37. 37.💾 Which is smaller: 1 bit or 1 TB? (a) 1 TB (b) 1 bit
38. 38.True or false: Ctrl+V is the shortcut to cut. (a) False (b) True
39. 39.📄 A file name ends in .mp4. What is it most likely? (a) a sound (b) a picture (c) a document (d) a video
40. 40.Which file ending is a document? (a) .pdf (b) .mp4 (c) .png (d) .gif

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