Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 674 · 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.⌨️ In a word processor, what does Ctrl+Y do? (a) undo (b) copy (c) redo (d) cut
2. 2.Which shortcut do we press to redo? (a) Ctrl+P (b) Ctrl+X (c) Ctrl+V (d) Ctrl+Y
3. 3.📁 Which word means to “put it in another place” (for a file or folder)? (a) rename (b) copy (c) move (d) open
4. 4.True or false: to move a file means to put it in another place. (a) False (b) True
5. 5.Which file ending is a video? (a) .txt (b) .mp4 (c) .png (d) .gif
6. 6.Which file ending is a sound? (a) .wav (b) .gif (c) .avi (d) .mp4
7. 7.💾 How many bytes are there in 2 KB?
8. 8.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+F (b) Ctrl+U (c) Ctrl+B (d) Ctrl+I
9. 9.💾 How many MB are there in 3 GB?
10. 10.📁 Which word means to “store your work” (for a file or folder)? (a) copy (b) rename (c) save (d) open
11. 11.⌨️ In a word processor, what does Ctrl+Z do? (a) print (b) redo (c) cut (d) undo
12. 12.True or false: a webcam is hardware. (a) True (b) False
13. 13.🔍 Which is the odd one out? (a) a word processor (b) a calculator app (c) a webcam (d) a music player app
14. 14.True or false: to move a file means to get rid of it. (a) False (b) True
15. 15.Which of these is hardware? (a) a web browser (b) a computer game (c) a paint program (d) a mouse
16. 16.Which of these is software? (a) an operating system (b) a scanner (c) a speaker (d) a printer
17. 17.🧰 Is a solid-state drive a storage, input or output device? (a) an input device (b) a storage device (c) an output device
18. 18.Which of these is hardware? (a) a typing tutor (b) a computer game (c) a speaker (d) a paint program
19. 19.⌨️ In a word processor, what does Ctrl+X do? (a) paste (b) redo (c) cut (d) copy
20. 20.True or false: to copy a file means to make an exact twin. (a) True (b) False
21. 21.🧩 Is a speaker hardware or software? (a) hardware (b) software
22. 22.🔢 A bit can be only 0 or ___. (a) 5 (b) 2 (c) 9 (d) 1
23. 23.🔍 Which is the odd one out? (a) a paint program (b) a pen drive (c) a monitor (d) a speaker
24. 24.Which of these is software? (a) a speaker (b) a printer (c) a webcam (d) a music player app
25. 25.📁 Which word means to “see what is inside” (for a file or folder)? (a) copy (b) delete (c) move (d) open
26. 26.⌨️ In a word processor, what does Ctrl+S do? (a) print (b) undo (c) copy (d) save
27. 27.True or false: a hard disk is hardware. (a) False (b) True
28. 28.True or false: to create a file means to throw it away. (a) True (b) False
29. 29.True or false: Ctrl+Y is the shortcut to redo. (a) False (b) True
30. 30.Which file ending is a sound? (a) .mp3 (b) .gif (c) .pdf (d) .avi
31. 31.Which file ending is a video? (a) .avi (b) .txt (c) .wav (d) .jpg
32. 32.🧰 Is a hard disk a storage, input or output device? (a) an input device (b) an output device (c) a storage device
33. 33.📄 A file name ends in .jpg. What is it most likely? (a) a video (b) a sound (c) a document (d) a picture
34. 34.Which of these is hardware? (a) an operating system (b) a calculator app (c) a computer game (d) a hard disk
35. 35.🔍 Which is the odd one out? (a) a pen drive (b) a scanner (c) a calculator app (d) a printer
36. 36.🔍 Which is the odd one out? (a) a keyboard (b) a typing tutor (c) a paint program (d) a computer game
37. 37.💾 Which is smaller: 1 MB or 1 bit? (a) 1 bit (b) 1 MB
38. 38.💾 Which is smaller: 1 KB or 1 TB? (a) 1 TB (b) 1 KB
39. 39.🔍 Which is the odd one out? (a) a speaker (b) a calculator app (c) a music player app (d) an operating system
40. 40.What does it mean to delete a file? (a) make an exact twin (b) make a brand-new one (c) give it a new name (d) throw it away

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