Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 328 · 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 .jpg. What is it most likely? (a) a sound (b) a document (c) a picture (d) a video
2. 2.📁 What do we call a folder inside another folder? (a) a subfolder (b) a printer (c) an icon (d) a big file
3. 3.🔌 The power goes off suddenly. Which loses the unsaved work? (a) the memory card (b) RAM (c) the hard disk (d) the pen drive
4. 4.What does it mean to create a file? (a) make a brand-new one (b) make an exact twin (c) throw it away (d) store your work
5. 5.True or false: a pen drive is a storage device. (a) False (b) True
6. 6.🧩 Is a speaker hardware or software? (a) software (b) hardware
7. 7.Which file ending is a sound? (a) .avi (b) .gif (c) .mp3 (d) .mkv
8. 8.🔍 Which is the odd one out? (a) a printer (b) a mouse (c) a paint program (d) a scanner
9. 9.Which file ending is a video? (a) .wav (b) .mp3 (c) .jpg (d) .avi
10. 10.💾 Which one is permanent storage: RAM or storage? (a) storage (b) RAM
11. 11.⌨️ In a word processor, what does Ctrl+X do? (a) copy (b) cut (c) save (d) redo
12. 12.💾 Which is bigger: 1 byte or 1 KB? (a) 1 byte (b) 1 KB
13. 13.🔍 Which is the odd one out? (a) a computer game (b) a paint program (c) a web browser (d) a keyboard
14. 14.🧩 Is a calculator app hardware or software? (a) software (b) hardware
15. 15.💾 Which is smaller: 1 MB or 1 TB? (a) 1 TB (b) 1 MB
16. 16.📁 Which word means to “make a brand-new one” (for a file or folder)? (a) delete (b) save (c) create (d) copy
17. 17.💾 Which is smaller: 1 bit or 1 MB? (a) 1 MB (b) 1 bit
18. 18.True or false: Ctrl+P is the shortcut to print. (a) True (b) False
19. 19.🏷️ Every file has a ___ so we can find it. (a) smell (b) weight (c) taste (d) name
20. 20.📄 A file name ends in .png. What is it most likely? (a) a video (b) a document (c) a picture (d) a sound
21. 21.⌨️ In a word processor, what does Ctrl+Z do? (a) save (b) undo (c) cut (d) print
22. 22.True or false: Ctrl+S is the shortcut to paste. (a) False (b) True
23. 23.Which shortcut do we press to paste? (a) Ctrl+Z (b) Ctrl+S (c) Ctrl+V (d) Ctrl+C
24. 24.🔍 Which is the odd one out? (a) pen drive (b) hard disk (c) keyboard (d) memory card
25. 25.Which file ending is a document? (a) .gif (b) .txt (c) .mp4 (d) .mp3
26. 26.💾 Which is smaller: 1 MB or 1 KB? (a) 1 MB (b) 1 KB
27. 27.⌨️ In a word processor, what does Ctrl+V do? (a) redo (b) print (c) cut (d) paste
28. 28.🔢 A bit can be only 0 or ___. (a) 2 (b) 1 (c) 9 (d) 5
29. 29.💾 Which is bigger: 1 MB or 1 KB? (a) 1 MB (b) 1 KB
30. 30.True or false: Ctrl+S is the shortcut to print. (a) False (b) True
31. 31.Which file ending is a video? (a) .mkv (b) .txt (c) .jpg (d) .mp3
32. 32.📄 A file name ends in .mkv. What is it most likely? (a) a sound (b) a picture (c) a video (d) a document
33. 33.Which shortcut do we press to undo? (a) Ctrl+Y (b) Ctrl+S (c) Ctrl+Z (d) Ctrl+V
34. 34.💾 How many GB are there in 1 TB?
35. 35.💾 Which is smaller: 1 byte or 1 GB? (a) 1 byte (b) 1 GB
36. 36.🖍️ Before we cut or copy text, we must first ___ it. (a) print (b) save (c) select (d) delete
37. 37.True or false: a calculator app is software. (a) False (b) True
38. 38.True or false: Ctrl+C is the shortcut to save. (a) False (b) True
39. 39.True or false: a keyboard is hardware. (a) True (b) False
40. 40.Which of these is true of storage (like a hard disk)? (a) is permanent storage (b) loses data when off (c) is the working memory (d) holds apps that are open

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