Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 304 · 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 shortcut do we press to redo? (a) Ctrl+P (b) Ctrl+Y (c) Ctrl+Z (d) Ctrl+X
2. 2.What does it mean to save a file? (a) throw it away (b) see what is inside (c) get rid of it (d) store your work
3. 3.📋 You want the same sentence in two places. What do you use first? (a) Backspace (b) Delete (c) Copy (d) Undo
4. 4.📁 What do we call a folder inside another folder? (a) a printer (b) a subfolder (c) an icon (d) a big file
5. 5.🔢 A bit can be only 0 or ___. (a) 1 (b) 9 (c) 5 (d) 2
6. 6.💾 Which is smaller: 1 byte or 1 MB? (a) 1 MB (b) 1 byte
7. 7.🧩 Is a monitor hardware or software? (a) software (b) hardware
8. 8.📄 A file name ends in .pdf. What is it most likely? (a) a video (b) a sound (c) a picture (d) a document
9. 9.📂 What holds many files together, like a school bag holds books? (a) a mouse (b) a speaker (c) a folder (d) a pixel
10. 10.👩‍💻 What do we call people who write software? (a) tailors (b) programmers (c) farmers (d) plumbers
11. 11.📄 A file name ends in .mp3. What is it most likely? (a) a video (b) a sound (c) a document (d) a picture
12. 12.🧾 Software is a set of ___ for the computer. (a) wires (b) buttons (c) instructions (d) screws
13. 13.Which file ending is a picture? (a) .mp4 (b) .jpg (c) .mp3 (d) .pdf
14. 14.True or false: a memory card is an output device. (a) True (b) False
15. 15.True or false: to save a file means to keep your work for later. (a) True (b) False
16. 16.💾 Which is bigger: 1 MB or 1 GB? (a) 1 GB (b) 1 MB
17. 17.True or false: to save a file means to store your work. (a) False (b) True
18. 18.⌨️ In a word processor, what does Ctrl+Y do? (a) save (b) paste (c) redo (d) cut
19. 19.💾 How many MB are there in 2 GB?
20. 20.💡 What is the smallest unit of computer memory? (a) bit (b) KB (c) byte (d) GB
21. 21.True or false: Ctrl+P is the shortcut to undo. (a) True (b) False
22. 22.True or false: a music player app is hardware. (a) False (b) True
23. 23.Which shortcut do we press to paste? (a) Ctrl+V (b) Ctrl+S (c) Ctrl+X (d) Ctrl+A
24. 24.⌨️ In a word processor, what does Ctrl+A do? (a) copy (b) select all (c) cut (d) save
25. 25.⌨️ In a word processor, what does Ctrl+X do? (a) paste (b) undo (c) cut (d) select all
26. 26.📁 Which word means to “change its name” (for a file or folder)? (a) open (b) create (c) rename (d) move
27. 27.Which of these is true of storage (like a hard disk)? (a) holds apps that are open (b) is temporary memory (c) keeps your saved files (d) loses data when off
28. 28.Which of these is true of storage (like a hard disk)? (a) is temporary memory (b) is permanent storage (c) holds apps that are open (d) is the working memory
29. 29.Which file ending is a video? (a) .avi (b) .gif (c) .jpg (d) .wav
30. 30.Which of these is software? (a) a speaker (b) a webcam (c) a mouse (d) a music player app
31. 31.🧩 Is a music player app hardware or software? (a) hardware (b) software
32. 32.🔍 Which is the odd one out? (a) a calculator app (b) a web browser (c) a monitor (d) a paint program
33. 33.🏷️ Every file has a ___ so we can find it. (a) weight (b) smell (c) taste (d) name
34. 34.🧩 Is a calculator app hardware or software? (a) hardware (b) software
35. 35.Which of these is a storage device? (a) printer (b) mouse (c) microphone (d) pen drive
36. 36.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+F (b) Ctrl+U (c) Ctrl+I (d) Ctrl+B
37. 37.What does it mean to rename a file? (a) make a brand-new one (b) get rid of it (c) change its name (d) store your work
38. 38.💾 How many GB are there in 2 TB?
39. 39.💾 Which is bigger: 1 GB or 1 KB? (a) 1 GB (b) 1 KB
40. 40.Which file ending is a document? (a) .png (b) .txt (c) .mkv (d) .mp4

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