Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 249 · 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.🔍 Which is the odd one out? (a) use mains for a project (b) build with an adult near (c) climb an electric pole (d) touch a fallen wire
2. 2.True or false: to touch a fallen wire is not safe. (a) False (b) True
3. 3.⚠️ About how many volts do home sockets in India supply? (a) 1.5 V (b) 12 V (c) 9 V (d) 230 V
4. 4.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a bulb (b) a long wire (c) a fuse or MCB (d) a plug top
5. 5.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) an open circuit (b) a safe circuit (c) a parallel circuit (d) a short circuit
6. 6.True or false: to use mains for a project is safe. (a) False (b) True
7. 7.⚠️ Is it safe to use small battery cells? (a) not safe (b) safe
8. 8.True or false: to touch a switch when wet is safe. (a) True (b) False
9. 9.⚠️ Is it safe to throw cells in a fire? (a) safe (b) not safe
10. 10.🔍 Which is the odd one out? (a) fly a kite near wires (b) use mains for a project (c) open a phone charger (d) use small battery cells
11. 11.Which of these is safe? (a) touch a switch when wet (b) use mains for a project (c) climb an electric pole (d) build with an adult near
12. 12.🔍 Which is the odd one out? (a) climb an electric pole (b) stay away from pylons (c) keep drinks far away (d) dry your hands first
13. 13.⚠️ Is it safe to climb an electric pole? (a) safe (b) not safe
14. 14.Which of these is not safe? (a) fly kites in open fields (b) keep drinks far away (c) touch a fallen wire (d) dry your hands first
15. 15.⚠️ Who should be with you when you build a circuit? (a) a stranger online (b) a younger child (c) a trusted adult (d) nobody
16. 16.🔍 Which is the odd one out? (a) fly a kite near wires (b) stay away from pylons (c) take cells out after use (d) keep drinks far away
17. 17.🔍 Which is the odd one out? (a) keep drinks far away (b) build with an adult near (c) stay away from pylons (d) touch a switch when wet
18. 18.True or false: to poke things in a socket is not safe. (a) False (b) True
19. 19.True or false: to use a cable with cuts is safe. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) open a phone charger (b) touch a switch when wet (c) use a cable with cuts (d) dry your hands first
21. 21.⚠️ Is it safe to fly kites in open fields? (a) not safe (b) safe
22. 22.True or false: to fly a kite near wires is safe. (a) True (b) False
23. 23.Which of these is not safe? (a) take cells out after use (b) build with an adult near (c) touch a switch when wet (d) fly kites in open fields
24. 24.True or false: to build with an adult near is safe. (a) True (b) False
25. 25.True or false: to open a phone charger is not safe. (a) True (b) False
26. 26.⚠️ Is it safe to stay away from pylons? (a) safe (b) not safe
27. 27.Which of these is not safe? (a) take cells out after use (b) use a cable with cuts (c) keep drinks far away (d) stay away from pylons
28. 28.🔍 Which is the odd one out? (a) stop if a part gets hot (b) use mains for a project (c) fly kites in open fields (d) build with an adult near
29. 29.Which of these is safe? (a) touch a fallen wire (b) use mains for a project (c) keep drinks far away (d) touch a switch when wet
30. 30.⚠️ Is it safe to poke things in a socket? (a) not safe (b) safe
31. 31.Which of these is not safe? (a) build with an adult near (b) use small battery cells (c) poke things in a socket (d) fly kites in open fields
32. 32.⚠️ Which power source should children use for electronics projects? (a) an inverter socket (b) a mains extension board (c) a small battery pack (d) a wall socket
33. 33.⚠️ Why must we never touch switches with wet hands? (a) it spoils the paint (b) it is just untidy (c) water carries current (d) water makes it cold
34. 34.🔍 Which is the odd one out? (a) use small battery cells (b) dry your hands first (c) open a phone charger (d) build with an adult near
35. 35.Which of these is safe? (a) climb an electric pole (b) stay away from pylons (c) poke things in a socket (d) touch a fallen wire
36. 36.⚠️ Is it safe to keep drinks far away? (a) not safe (b) safe
37. 37.True or false: to stay away from pylons is not safe. (a) True (b) False
38. 38.⚠️ Is it safe to build with an adult near? (a) not safe (b) safe
39. 39.True or false: to build with an adult near is not safe. (a) True (b) False
40. 40.🔍 Which is the odd one out? (a) stop if a part gets hot (b) stay away from pylons (c) use a cable with cuts (d) take cells out after use

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