Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 288 · 40 questions

Remember (Low, dry, with an adult): Never use mains sockets (about 230 V) for projects; never open chargers or poke into sockets. Water carries current: dry hands, no drinks near circuits, no switches when wet. Use small battery cells with an adult; stop if a part gets hot; keep away from fallen wires, poles and kites near power lines.

1. 1.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a fuse or MCB (b) a plug top (c) a bulb (d) a long wire
2. 2.⚠️ Which power source should children use for electronics projects? (a) a mains extension board (b) a wall socket (c) an inverter socket (d) a small battery pack
3. 3.True or false: to touch a fallen wire is safe. (a) False (b) True
4. 4.True or false: to touch a switch when wet is not safe. (a) True (b) False
5. 5.True or false: to use a cable with cuts is safe. (a) True (b) False
6. 6.Which of these is safe? (a) touch a switch when wet (b) dry your hands first (c) use a cable with cuts (d) touch a fallen wire
7. 7.True or false: to fly kites in open fields is safe. (a) True (b) False
8. 8.True or false: to stop if a part gets hot is not safe. (a) False (b) True
9. 9.⚠️ Is it safe to use mains for a project? (a) safe (b) not safe
10. 10.Which of these is not safe? (a) use small battery cells (b) fly a kite near wires (c) fly kites in open fields (d) stop if a part gets hot
11. 11.🔍 Which is the odd one out? (a) take cells out after use (b) poke things in a socket (c) build with an adult near (d) keep drinks far away
12. 12.True or false: to use small battery cells is safe. (a) False (b) True
13. 13.🔍 Which is the odd one out? (a) fly kites in open fields (b) use mains for a project (c) take cells out after use (d) stop if a part gets hot
14. 14.🔍 Which is the odd one out? (a) use small battery cells (b) climb an electric pole (c) dry your hands first (d) stop if a part gets hot
15. 15.🔍 Which is the odd one out? (a) build with an adult near (b) stay away from pylons (c) throw cells in a fire (d) stop if a part gets hot
16. 16.⚠️ Who should be with you when you build a circuit? (a) nobody (b) a stranger online (c) a trusted adult (d) a younger child
17. 17.🔍 Which is the odd one out? (a) poke things in a socket (b) use a cable with cuts (c) stay away from pylons (d) climb an electric pole
18. 18.⚠️ About how many volts do home sockets in India supply? (a) 12 V (b) 230 V (c) 9 V (d) 1.5 V
19. 19.🔍 Which is the odd one out? (a) use small battery cells (b) take cells out after use (c) touch a switch when wet (d) stay away from pylons
20. 20.🔍 Which is the odd one out? (a) fly kites in open fields (b) stay away from pylons (c) keep drinks far away (d) open a phone charger
21. 21.🔍 Which is the odd one out? (a) climb an electric pole (b) use small battery cells (c) poke things in a socket (d) touch a switch when wet
22. 22.⚠️ Is it safe to touch a fallen wire? (a) not safe (b) safe
23. 23.True or false: to fly a kite near wires is not safe. (a) True (b) False
24. 24.⚠️ Is it safe to throw cells in a fire? (a) safe (b) not safe
25. 25.🔍 Which is the odd one out? (a) poke things in a socket (b) climb an electric pole (c) fly kites in open fields (d) fly a kite near wires
26. 26.⚠️ Is it safe to build with an adult near? (a) not safe (b) safe
27. 27.True or false: to fly kites in open fields is not safe. (a) True (b) False
28. 28.True or false: to throw cells in a fire is not safe. (a) False (b) True
29. 29.⚠️ Is it safe to stop if a part gets hot? (a) not safe (b) safe
30. 30.⚠️ Is it safe to keep drinks far away? (a) not safe (b) safe
31. 31.True or false: to keep drinks far away is not safe. (a) True (b) False
32. 32.Which of these is safe? (a) throw cells in a fire (b) take cells out after use (c) touch a fallen wire (d) climb an electric pole
33. 33.True or false: to use small battery cells is not safe. (a) True (b) False
34. 34.Which of these is not safe? (a) use small battery cells (b) stop if a part gets hot (c) keep drinks far away (d) poke things in a socket
35. 35.🔍 Which is the odd one out? (a) fly a kite near wires (b) open a phone charger (c) use a cable with cuts (d) stop if a part gets hot
36. 36.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a short circuit (b) an open circuit (c) a safe circuit (d) a parallel circuit
37. 37.⚠️ Is it safe to take cells out after use? (a) safe (b) not safe
38. 38.True or false: to use mains for a project is not safe. (a) True (b) False
39. 39.Which of these is not safe? (a) stop if a part gets hot (b) keep drinks far away (c) build with an adult near (d) touch a switch when wet
40. 40.True or false: to touch a switch when wet is safe. (a) True (b) False

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