Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 291 · 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 .txt. What is it most likely? (a) a video (b) a sound (c) a picture (d) a document
2. 2.🔢 A bit can be only 0 or ___. (a) 2 (b) 1 (c) 9 (d) 5
3. 3.True or false: to save a file means to store your work. (a) True (b) False
4. 4.💾 Which is smaller: 1 KB or 1 bit? (a) 1 KB (b) 1 bit
5. 5.Which file ending is a picture? (a) .txt (b) .wav (c) .jpg (d) .mkv
6. 6.📁 Which word means to “throw it away” (for a file or folder)? (a) delete (b) copy (c) create (d) rename
7. 7.Which of these is true of storage (like a hard disk)? (a) loses data when off (b) is the working memory (c) holds apps that are open (d) keeps your saved files
8. 8.What does it mean to save a file? (a) keep your work for later (b) throw it away (c) make a brand-new one (d) give it a new name
9. 9.📄 A file name ends in .wav. What is it most likely? (a) a picture (b) a document (c) a sound (d) a video
10. 10.🧩 Is a monitor hardware or software? (a) hardware (b) software
11. 11.🏷️ Every file has a ___ so we can find it. (a) name (b) smell (c) weight (d) taste
12. 12.True or false: Ctrl+X is the shortcut to cut. (a) False (b) True
13. 13.📂 What holds many files together, like a school bag holds books? (a) a pixel (b) a mouse (c) a speaker (d) a folder
14. 14.😮 You deleted a word by mistake. What brings it back? (a) Copy (b) Cut (c) Undo (d) Save
15. 15.🔍 Which is the odd one out? (a) speaker (b) monitor (c) memory card (d) printer
16. 16.💾 Which is bigger: 1 GB or 1 MB? (a) 1 GB (b) 1 MB
17. 17.Which shortcut do we press to undo? (a) Ctrl+S (b) Ctrl+V (c) Ctrl+Y (d) Ctrl+Z
18. 18.💾 How many MB are there in 3 GB?
19. 19.Which of these is software? (a) a speaker (b) an operating system (c) a mouse (d) a scanner
20. 20.💾 Which one is temporary memory: RAM or storage? (a) RAM (b) storage
21. 21.Which shortcut do we press to paste? (a) Ctrl+S (b) Ctrl+A (c) Ctrl+V (d) Ctrl+X
22. 22.📁 Which word means to “put it in another place” (for a file or folder)? (a) copy (b) move (c) create (d) open
23. 23.🧩 Is a mouse hardware or software? (a) software (b) hardware
24. 24.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Delete (b) Copy (c) Redo (d) Cut
25. 25.💾 Which is smaller: 1 bit or 1 KB? (a) 1 KB (b) 1 bit
26. 26.True or false: a hard disk is an input device. (a) True (b) False
27. 27.🧰 Is a hard disk a storage, input or output device? (a) an input device (b) an output device (c) a storage device
28. 28.💾 Which is bigger: 1 TB or 1 byte? (a) 1 TB (b) 1 byte
29. 29.True or false: a pen drive is an input device. (a) True (b) False
30. 30.Which shortcut do we press to save? (a) Ctrl+Y (b) Ctrl+S (c) Ctrl+V (d) Ctrl+C
31. 31.🔍 Which is the odd one out? (a) scanner (b) mouse (c) hard disk (d) keyboard
32. 32.Which of these is software? (a) a word processor (b) a mouse (c) a keyboard (d) a hard disk
33. 33.Which of these is an input device? (a) solid-state drive (b) pen drive (c) projector (d) mouse
34. 34.🧩 Is a web browser hardware or software? (a) software (b) hardware
35. 35.⌨️ In a word processor, what does Ctrl+P do? (a) select all (b) print (c) copy (d) save
36. 36.💾 How many KB are there in 2 MB?
37. 37.💾 Which is smaller: 1 byte or 1 GB? (a) 1 GB (b) 1 byte
38. 38.📄 What does a word processor help us do? (a) type and edit text (b) cook food (c) water plants (d) fly a kite
39. 39.True or false: a hard disk is a storage device. (a) True (b) False
40. 40.Which of these is a storage device? (a) solid-state drive (b) mouse (c) projector (d) scanner

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