Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 536 · 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 bit can be only 0 or ___. (a) 9 (b) 1 (c) 5 (d) 2
2. 2.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Cut (b) Copy (c) Delete (d) Redo
3. 3.Which of these is hardware? (a) a computer game (b) a music player app (c) a webcam (d) a web browser
4. 4.✋ Which can we touch: hardware or software? (a) software (b) hardware
5. 5.Which shortcut do we press to select all? (a) Ctrl+V (b) Ctrl+A (c) Ctrl+C (d) Ctrl+X
6. 6.Which file ending is a picture? (a) .mkv (b) .gif (c) .mp4 (d) .avi
7. 7.⌨️ In a word processor, what does Ctrl+X do? (a) redo (b) select all (c) print (d) cut
8. 8.🧩 Is a word processor hardware or software? (a) hardware (b) software
9. 9.Which of these is software? (a) a webcam (b) a hard disk (c) a word processor (d) a speaker
10. 10.📁 Which word means to “change its name” (for a file or folder)? (a) save (b) delete (c) rename (d) create
11. 11.📄 A file name ends in .jpg. What is it most likely? (a) a document (b) a sound (c) a video (d) a picture
12. 12.True or false: to open a file means to see what is inside. (a) False (b) True
13. 13.True or false: a calculator app is hardware. (a) True (b) False
14. 14.💾 Which is smaller: 1 TB or 1 GB? (a) 1 TB (b) 1 GB
15. 15.🧩 Is a webcam hardware or software? (a) software (b) hardware
16. 16.🔍 Which is the odd one out? (a) printer (b) monitor (c) hard disk (d) projector
17. 17.True or false: to delete a file means to make a brand-new one. (a) True (b) False
18. 18.💾 How many MB are there in 2 GB?
19. 19.🧩 Is a typing tutor hardware or software? (a) hardware (b) software
20. 20.True or false: Ctrl+V is the shortcut to paste. (a) True (b) False
21. 21.⌨️ In a word processor, what does Ctrl+S do? (a) cut (b) redo (c) save (d) copy
22. 22.⚡ Which is faster for the computer to work with? (a) a printer (b) RAM (c) a memory card (d) a pen drive
23. 23.True or false: a microphone is an input device. (a) True (b) False
24. 24.💾 How many bits are there in 6 bytes?
25. 25.True or false: Ctrl+Z is the shortcut to undo. (a) False (b) True
26. 26.Which shortcut do we press to cut? (a) Ctrl+X (b) Ctrl+Z (c) Ctrl+S (d) Ctrl+C
27. 27.💡 What is the smallest unit of computer memory? (a) KB (b) GB (c) bit (d) byte
28. 28.📋 You want the same sentence in two places. What do you use first? (a) Backspace (b) Copy (c) Undo (d) Delete
29. 29.💾 Which one is permanent storage: RAM or storage? (a) storage (b) RAM
30. 30.Which of these is software? (a) a keyboard (b) a printer (c) a calculator app (d) a webcam
31. 31.💾 How many bytes are there in 3 KB?
32. 32.🔍 Which is the odd one out? (a) a calculator app (b) a word processor (c) a keyboard (d) a computer game
33. 33.Which shortcut do we press to paste? (a) Ctrl+Z (b) Ctrl+V (c) Ctrl+S (d) Ctrl+C
34. 34.Which file ending is a video? (a) .png (b) .txt (c) .gif (d) .mp4
35. 35.🔍 Which is the odd one out? (a) a keyboard (b) a mouse (c) an operating system (d) a pen drive
36. 36.🔍 Which is the odd one out? (a) a speaker (b) a typing tutor (c) a monitor (d) a webcam
37. 37.🧰 Is a speaker a storage, input or output device? (a) an input device (b) a storage device (c) an output device
38. 38.🔌 The power goes off suddenly. Which loses the unsaved work? (a) the hard disk (b) RAM (c) the pen drive (d) the memory card
39. 39.What does it mean to copy a file? (a) make an exact twin (b) throw it away (c) give it a new name (d) put it in another place
40. 40.True or false: a music player app is software. (a) False (b) True

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