Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 885 · 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) touch a fallen wire (b) stay away from pylons (c) stop if a part gets hot (d) dry your hands first
2. 2.⚠️ Is it safe to fly a kite near wires? (a) not safe (b) safe
3. 3.🔍 Which is the odd one out? (a) touch a fallen wire (b) throw cells in a fire (c) use mains for a project (d) take cells out after use
4. 4.True or false: to use small battery cells is not safe. (a) True (b) False
5. 5.⚠️ Why must we never touch switches with wet hands? (a) it is just untidy (b) it spoils the paint (c) water makes it cold (d) water carries current
6. 6.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a plug top (b) a long wire (c) a bulb (d) a fuse or MCB
7. 7.⚠️ Is it safe to climb an electric pole? (a) not safe (b) safe
8. 8.🔍 Which is the odd one out? (a) climb an electric pole (b) touch a fallen wire (c) keep drinks far away (d) use mains for a project
9. 9.Which of these is safe? (a) poke things in a socket (b) build with an adult near (c) touch a switch when wet (d) use a cable with cuts
10. 10.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a parallel circuit (b) an open circuit (c) a safe circuit (d) a short circuit
11. 11.⚠️ Is it safe to stop if a part gets hot? (a) not safe (b) safe
12. 12.⚠️ About how many volts do home sockets in India supply? (a) 1.5 V (b) 12 V (c) 9 V (d) 230 V
13. 13.🔍 Which is the odd one out? (a) open a phone charger (b) use a cable with cuts (c) climb an electric pole (d) build with an adult near
14. 14.True or false: to open a phone charger is safe. (a) False (b) True
15. 15.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) pour water on them (b) pull them by the hand (c) shout for an adult (d) wait and watch
16. 16.🔍 Which is the odd one out? (a) stop if a part gets hot (b) keep drinks far away (c) open a phone charger (d) use small battery cells
17. 17.Which of these is safe? (a) throw cells in a fire (b) use small battery cells (c) use a cable with cuts (d) touch a switch when wet
18. 18.⚠️ Which power source should children use for electronics projects? (a) a wall socket (b) a mains extension board (c) an inverter socket (d) a small battery pack
19. 19.⚠️ Is it safe to keep drinks far away? (a) safe (b) not safe
20. 20.True or false: to take cells out after use is safe. (a) True (b) False
21. 21.Which of these is not safe? (a) stay away from pylons (b) dry your hands first (c) touch a fallen wire (d) build with an adult near
22. 22.⚠️ Is it safe to touch a fallen wire? (a) not safe (b) safe
23. 23.Which of these is safe? (a) touch a switch when wet (b) dry your hands first (c) climb an electric pole (d) touch a fallen wire
24. 24.True or false: to touch a fallen wire is safe. (a) False (b) True
25. 25.⚠️ Is it safe to use a cable with cuts? (a) safe (b) not safe
26. 26.True or false: to touch a switch when wet is not safe. (a) False (b) True
27. 27.True or false: to poke things in a socket is not safe. (a) False (b) True
28. 28.⚠️ Is it safe to dry your hands first? (a) safe (b) not safe
29. 29.🔍 Which is the odd one out? (a) stay away from pylons (b) take cells out after use (c) use small battery cells (d) touch a switch when wet
30. 30.True or false: to build with an adult near is not safe. (a) True (b) False
31. 31.Which of these is not safe? (a) build with an adult near (b) take cells out after use (c) fly kites in open fields (d) throw cells in a fire
32. 32.⚠️ Is it safe to touch a switch when wet? (a) safe (b) not safe
33. 33.Which of these is safe? (a) fly a kite near wires (b) stay away from pylons (c) use a cable with cuts (d) touch a switch when wet
34. 34.Which of these is safe? (a) open a phone charger (b) touch a switch when wet (c) keep drinks far away (d) throw cells in a fire
35. 35.⚠️ Is it safe to take cells out after use? (a) not safe (b) safe
36. 36.🔍 Which is the odd one out? (a) poke things in a socket (b) use mains for a project (c) open a phone charger (d) stay away from pylons
37. 37.⚠️ Is it safe to use small battery cells? (a) not safe (b) safe
38. 38.True or false: to use mains for a project is safe. (a) True (b) False
39. 39.Which of these is not safe? (a) build with an adult near (b) take cells out after use (c) use mains for a project (d) fly kites in open fields
40. 40.True or false: to open a phone charger is not safe. (a) True (b) False

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