Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 778 · 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 video? (a) .pdf (b) .avi (c) .mp3 (d) .txt
2. 2.True or false: a monitor is hardware. (a) True (b) False
3. 3.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Delete (b) Copy (c) Redo (d) Cut
4. 4.📁 What do we call a folder inside another folder? (a) a big file (b) an icon (c) a subfolder (d) a printer
5. 5.📄 A file name ends in .png. What is it most likely? (a) a sound (b) a picture (c) a video (d) a document
6. 6.⚡ Which is faster for the computer to work with? (a) a memory card (b) a pen drive (c) RAM (d) a printer
7. 7.🧰 Is a microphone a storage, input or output device? (a) an output device (b) an input device (c) a storage device
8. 8.💾 Which is smaller: 1 KB or 1 bit? (a) 1 bit (b) 1 KB
9. 9.True or false: Ctrl+Z is the shortcut to copy. (a) True (b) False
10. 10.🧩 Is a music player app hardware or software? (a) hardware (b) software
11. 11.True or false: a pen drive is an input device. (a) False (b) True
12. 12.🧾 Software is a set of ___ for the computer. (a) wires (b) instructions (c) buttons (d) screws
13. 13.Which shortcut do we press to redo? (a) Ctrl+Y (b) Ctrl+S (c) Ctrl+X (d) Ctrl+Z
14. 14.True or false: to create a file means to get rid of it. (a) True (b) False
15. 15.True or false: storage (like a hard disk) is temporary memory. (a) True (b) False
16. 16.True or false: to create a file means to make a brand-new one. (a) False (b) True
17. 17.📂 What holds many files together, like a school bag holds books? (a) a pixel (b) a speaker (c) a mouse (d) a folder
18. 18.💾 How many MB are there in 3 GB?
19. 19.📄 A file name ends in .wav. What is it most likely? (a) a picture (b) a document (c) a video (d) a sound
20. 20.📄 A file name ends in .avi. What is it most likely? (a) a video (b) a picture (c) a sound (d) a document
21. 21.💡 What is the smallest unit of computer memory? (a) GB (b) KB (c) byte (d) bit
22. 22.True or false: a scanner is hardware. (a) True (b) False
23. 23.Which of these is a storage device? (a) solid-state drive (b) printer (c) microphone (d) scanner
24. 24.🧩 Is a speaker hardware or software? (a) hardware (b) software
25. 25.True or false: to rename a file means to change its name. (a) True (b) False
26. 26.True or false: a computer game is software. (a) False (b) True
27. 27.🧩 Is an operating system hardware or software? (a) hardware (b) software
28. 28.💾 Which is bigger: 1 bit or 1 KB? (a) 1 KB (b) 1 bit
29. 29.True or false: a paint program is software. (a) False (b) True
30. 30.Which shortcut do we press to save? (a) Ctrl+X (b) Ctrl+S (c) Ctrl+A (d) Ctrl+Y
31. 31.🔢 A bit can be only 0 or ___. (a) 5 (b) 1 (c) 2 (d) 9
32. 32.💾 Which is smaller: 1 bit or 1 byte? (a) 1 byte (b) 1 bit
33. 33.🔍 Which is the odd one out? (a) pen drive (b) memory card (c) projector (d) hard disk
34. 34.✂️ You want to move a sentence to the end. What do you use first? (a) Print (b) Undo (c) Delete (d) Cut
35. 35.✋ Which can we touch: hardware or software? (a) software (b) hardware
36. 36.🔍 Which is the odd one out? (a) a mouse (b) a paint program (c) a web browser (d) a music player app
37. 37.📁 Which word means to “throw it away” (for a file or folder)? (a) create (b) rename (c) open (d) delete
38. 38.🔍 Which is the odd one out? (a) a pen drive (b) a computer game (c) a webcam (d) a keyboard
39. 39.Which shortcut do we press to select all? (a) Ctrl+A (b) Ctrl+V (c) Ctrl+S (d) Ctrl+Z
40. 40.True or false: Ctrl+Y is the shortcut to print. (a) False (b) True

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