Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 138 · 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.Which file ending is a picture? (a) .gif (b) .mp4 (c) .mp3 (d) .avi
2. 2.📁 Which word means to “throw it away” (for a file or folder)? (a) create (b) copy (c) rename (d) delete
3. 3.💾 Which is bigger: 1 bit or 1 KB? (a) 1 bit (b) 1 KB
4. 4.💾 Which one keeps your saved files: RAM or storage? (a) RAM (b) storage
5. 5.🔍 Which is the odd one out? (a) speaker (b) scanner (c) monitor (d) projector
6. 6.💾 Which one keeps data when off: RAM or storage? (a) RAM (b) storage
7. 7.💾 How many bytes are there in 1 KB?
8. 8.🔢 A bit can be only 0 or ___. (a) 9 (b) 5 (c) 1 (d) 2
9. 9.📁 Which word means to “make an exact twin” (for a file or folder)? (a) delete (b) copy (c) open (d) save
10. 10.Which of these is hardware? (a) a keyboard (b) a paint program (c) a typing tutor (d) an operating system
11. 11.▌ What is the blinking line that shows where you will type? (a) the cursor (b) the icon (c) the toolbar (d) the folder
12. 12.⌨️ In a word processor, what does Ctrl+A do? (a) print (b) cut (c) paste (d) select all
13. 13.💾 How many KB are there in 4 MB?
14. 14.😮 You deleted a word by mistake. What brings it back? (a) Copy (b) Undo (c) Cut (d) Save
15. 15.💾 How many bytes are there in 3 KB?
16. 16.📂 What holds many files together, like a school bag holds books? (a) a folder (b) a pixel (c) a mouse (d) a speaker
17. 17.🔍 Which is the odd one out? (a) pen drive (b) hard disk (c) monitor (d) solid-state drive
18. 18.Which of these is software? (a) a webcam (b) a keyboard (c) a computer game (d) a monitor
19. 19.True or false: Ctrl+Z is the shortcut to paste. (a) False (b) True
20. 20.📁 What do we call a folder inside another folder? (a) a big file (b) a printer (c) a subfolder (d) an icon
21. 21.What does it mean to copy a file? (a) see what is inside (b) make an exact twin (c) keep your work for later (d) give it a new name
22. 22.Which of these is a storage device? (a) solid-state drive (b) microphone (c) printer (d) scanner
23. 23.Which file ending is a picture? (a) .txt (b) .pdf (c) .jpg (d) .avi
24. 24.🧩 Is a calculator app hardware or software? (a) hardware (b) software
25. 25.Which shortcut do we press to undo? (a) Ctrl+Z (b) Ctrl+X (c) Ctrl+C (d) Ctrl+V
26. 26.📄 A file name ends in .avi. What is it most likely? (a) a sound (b) a document (c) a video (d) a picture
27. 27.✋ Which can we touch: hardware or software? (a) software (b) hardware
28. 28.True or false: to rename a file means to change its name. (a) False (b) True
29. 29.💾 Which is bigger: 1 MB or 1 bit? (a) 1 MB (b) 1 bit
30. 30.✂️ You want to move a sentence to the end. What do you use first? (a) Undo (b) Delete (c) Cut (d) Print
31. 31.Which file ending is a sound? (a) .mp3 (b) .gif (c) .jpg (d) .mkv
32. 32.📁 Which word means to “give it a new name” (for a file or folder)? (a) open (b) move (c) rename (d) create
33. 33.💾 Which is bigger: 1 GB or 1 bit? (a) 1 GB (b) 1 bit
34. 34.🧩 Is a speaker hardware or software? (a) hardware (b) software
35. 35.Which shortcut do we press to paste? (a) Ctrl+V (b) Ctrl+S (c) Ctrl+Z (d) Ctrl+X
36. 36.True or false: RAM is permanent storage. (a) False (b) True
37. 37.🏷️ Every file has a ___ so we can find it. (a) taste (b) weight (c) name (d) smell
38. 38.True or false: RAM is temporary memory. (a) False (b) True
39. 39.💡 What is the smallest unit of computer memory? (a) GB (b) bit (c) byte (d) KB
40. 40.💾 Which is bigger: 1 MB or 1 KB? (a) 1 MB (b) 1 KB

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