Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 4 · 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 .avi. What is it most likely? (a) a picture (b) a video (c) a sound (d) a document
2. 2.🔍 Which is the odd one out? (a) mouse (b) solid-state drive (c) hard disk (d) pen drive
3. 3.🔍 Which is the odd one out? (a) projector (b) speaker (c) hard disk (d) monitor
4. 4.Which shortcut do we press to redo? (a) Ctrl+Y (b) Ctrl+V (c) Ctrl+S (d) Ctrl+C
5. 5.🧩 Is a printer hardware or software? (a) software (b) hardware
6. 6.True or false: Ctrl+C is the shortcut to save. (a) False (b) True
7. 7.Which of these is hardware? (a) a web browser (b) a hard disk (c) a computer game (d) a music player app
8. 8.💾 Which one keeps photos for years: RAM or storage? (a) storage (b) RAM
9. 9.True or false: a hard disk is an output device. (a) True (b) False
10. 10.Which of these is hardware? (a) a computer game (b) a music player app (c) a pen drive (d) a paint program
11. 11.📁 Which word means to “change its name” (for a file or folder)? (a) open (b) move (c) create (d) rename
12. 12.True or false: to rename a file means to change its name. (a) True (b) False
13. 13.What does it mean to save a file? (a) give it a new name (b) change its name (c) get rid of it (d) keep your work for later
14. 14.Which shortcut do we press to undo? (a) Ctrl+S (b) Ctrl+Z (c) Ctrl+X (d) Ctrl+V
15. 15.🔍 Which is the odd one out? (a) a pen drive (b) a speaker (c) a web browser (d) a monitor
16. 16.True or false: Ctrl+V is the shortcut to paste. (a) True (b) False
17. 17.True or false: to create a file means to make a brand-new one. (a) True (b) False
18. 18.True or false: a keyboard is software. (a) False (b) True
19. 19.💾 Which one is the working memory: RAM or storage? (a) storage (b) RAM
20. 20.Which shortcut do we press to cut? (a) Ctrl+Y (b) Ctrl+V (c) Ctrl+A (d) Ctrl+X
21. 21.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+U (b) Ctrl+B (c) Ctrl+I (d) Ctrl+F
22. 22.🧩 Is a scanner hardware or software? (a) software (b) hardware
23. 23.Which shortcut do we press to print? (a) Ctrl+S (b) Ctrl+X (c) Ctrl+V (d) Ctrl+P
24. 24.💾 How many bits are there in 11 bytes?
25. 25.🔍 Which is the odd one out? (a) a scanner (b) a typing tutor (c) a monitor (d) a speaker
26. 26.⌨️ In a word processor, what does Ctrl+A do? (a) print (b) select all (c) cut (d) copy
27. 27.True or false: a scanner is an input device. (a) False (b) True
28. 28.Which file ending is a sound? (a) .jpg (b) .wav (c) .png (d) .txt
29. 29.✋ Which can we touch: hardware or software? (a) hardware (b) software
30. 30.💾 How many GB are there in 2 TB?
31. 31.True or false: to move a file means to change its name. (a) True (b) False
32. 32.True or false: a hard disk is software. (a) False (b) True
33. 33.True or false: a speaker is an output device. (a) False (b) True
34. 34.💡 What is the smallest unit of computer memory? (a) KB (b) byte (c) GB (d) bit
35. 35.💾 How many KB are there in 1 MB?
36. 36.True or false: an operating system is hardware. (a) True (b) False
37. 37.Which shortcut do we press to paste? (a) Ctrl+V (b) Ctrl+C (c) Ctrl+Z (d) Ctrl+Y
38. 38.True or false: Ctrl+S is the shortcut to save. (a) False (b) True
39. 39.True or false: RAM keeps photos for years. (a) True (b) False
40. 40.☁️ Saving files on the internet to use from anywhere is called ___. (a) box storage (b) paper storage (c) cloud storage (d) rain storage

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