Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 327 · 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+V do? (a) select all (b) save (c) redo (d) paste
2. 2.💾 How many bits are there in 3 bytes?
3. 3.Which of these is an output device? (a) keyboard (b) hard disk (c) speaker (d) scanner
4. 4.True or false: Ctrl+C is the shortcut to redo. (a) False (b) True
5. 5.🔌 The power goes off suddenly. Which loses the unsaved work? (a) the memory card (b) RAM (c) the pen drive (d) the hard disk
6. 6.📁 What do we call a folder inside another folder? (a) a printer (b) an icon (c) a big file (d) a subfolder
7. 7.🔍 Which is the odd one out? (a) a keyboard (b) a scanner (c) a music player app (d) a webcam
8. 8.True or false: to rename a file means to change its name. (a) False (b) True
9. 9.💾 Which is smaller: 1 bit or 1 KB? (a) 1 KB (b) 1 bit
10. 10.True or false: Ctrl+X is the shortcut to redo. (a) False (b) True
11. 11.💾 Which is bigger: 1 GB or 1 byte? (a) 1 GB (b) 1 byte
12. 12.Which of these is true of RAM? (a) is the working memory (b) keeps your saved files (c) is permanent storage (d) keeps data when off
13. 13.📄 A file name ends in .mp3. What is it most likely? (a) a video (b) a picture (c) a sound (d) a document
14. 14.Which of these is hardware? (a) a word processor (b) a hard disk (c) a music player app (d) a typing tutor
15. 15.📁 Which word means to “change its name” (for a file or folder)? (a) delete (b) copy (c) rename (d) save
16. 16.💾 How many bytes are there in 4 KB?
17. 17.True or false: Ctrl+P is the shortcut to copy. (a) True (b) False
18. 18.💾 How many GB are there in 2 TB?
19. 19.Which file ending is a picture? (a) .wav (b) .avi (c) .mp3 (d) .jpg
20. 20.🔢 A bit can be only 0 or ___. (a) 9 (b) 2 (c) 1 (d) 5
21. 21.Which file ending is a video? (a) .jpg (b) .png (c) .avi (d) .gif
22. 22.💾 Which is smaller: 1 TB or 1 KB? (a) 1 KB (b) 1 TB
23. 23.Which of these is an input device? (a) solid-state drive (b) pen drive (c) speaker (d) keyboard
24. 24.⌨️ In a word processor, what does Ctrl+Z do? (a) select all (b) undo (c) redo (d) copy
25. 25.Which shortcut do we press to print? (a) Ctrl+Y (b) Ctrl+P (c) Ctrl+X (d) Ctrl+Z
26. 26.🧩 Is a speaker hardware or software? (a) hardware (b) software
27. 27.💾 How many bits are there in 7 bytes?
28. 28.True or false: Ctrl+Y is the shortcut to redo. (a) True (b) False
29. 29.💾 Which one loses data when off: RAM or storage? (a) storage (b) RAM
30. 30.True or false: Ctrl+Z is the shortcut to undo. (a) True (b) False
31. 31.💾 How many bits are there in 9 bytes?
32. 32.What does it mean to save a file? (a) change its name (b) make a brand-new one (c) keep your work for later (d) make an exact twin
33. 33.📋 You want the same sentence in two places. What do you use first? (a) Undo (b) Copy (c) Backspace (d) Delete
34. 34.Which shortcut do we press to undo? (a) Ctrl+Z (b) Ctrl+X (c) Ctrl+V (d) Ctrl+Y
35. 35.💾 Which is smaller: 1 TB or 1 MB? (a) 1 TB (b) 1 MB
36. 36.🔍 Which is the odd one out? (a) speaker (b) pen drive (c) memory card (d) solid-state drive
37. 37.💾 How many bits are there in 2 bytes?
38. 38.⌨️ In a word processor, what does Ctrl+P do? (a) save (b) paste (c) print (d) copy
39. 39.🔍 Which is the odd one out? (a) a speaker (b) a pen drive (c) a printer (d) a web browser
40. 40.True or false: a scanner is an output device. (a) True (b) False

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