Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 223 · 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.⚠️ Why must we never touch switches with wet hands? (a) water makes it cold (b) it spoils the paint (c) it is just untidy (d) water carries current
2. 2.⚠️ Is it safe to stay away from pylons? (a) not safe (b) safe
3. 3.⚠️ Is it safe to use a cable with cuts? (a) not safe (b) safe
4. 4.Which of these is safe? (a) use a cable with cuts (b) build with an adult near (c) use mains for a project (d) touch a switch when wet
5. 5.Which of these is safe? (a) use mains for a project (b) fly a kite near wires (c) stop if a part gets hot (d) touch a fallen wire
6. 6.⚠️ Who should be with you when you build a circuit? (a) a stranger online (b) nobody (c) a younger child (d) a trusted adult
7. 7.⚠️ Is it safe to fly a kite near wires? (a) not safe (b) safe
8. 8.⚠️ Is it safe to dry your hands first? (a) not safe (b) safe
9. 9.True or false: to poke things in a socket is not safe. (a) False (b) True
10. 10.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a bulb (b) a plug top (c) a long wire (d) a fuse or MCB
11. 11.Which of these is safe? (a) stay away from pylons (b) use mains for a project (c) climb an electric pole (d) touch a switch when wet
12. 12.🔍 Which is the odd one out? (a) use a cable with cuts (b) open a phone charger (c) build with an adult near (d) touch a fallen wire
13. 13.🔍 Which is the odd one out? (a) touch a switch when wet (b) use small battery cells (c) use mains for a project (d) touch a fallen wire
14. 14.🔍 Which is the odd one out? (a) fly kites in open fields (b) throw cells in a fire (c) dry your hands first (d) keep drinks far away
15. 15.True or false: to open a phone charger is not safe. (a) False (b) True
16. 16.⚠️ Is it safe to use mains for a project? (a) safe (b) not safe
17. 17.Which of these is not safe? (a) use small battery cells (b) fly kites in open fields (c) take cells out after use (d) climb an electric pole
18. 18.True or false: to use small battery cells is not safe. (a) False (b) True
19. 19.Which of these is safe? (a) touch a switch when wet (b) open a phone charger (c) dry your hands first (d) use a cable with cuts
20. 20.⚠️ Is it safe to take cells out after use? (a) safe (b) not safe
21. 21.⚠️ Which power source should children use for electronics projects? (a) a small battery pack (b) a mains extension board (c) a wall socket (d) an inverter socket
22. 22.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) an open circuit (b) a parallel circuit (c) a safe circuit (d) a short circuit
23. 23.Which of these is not safe? (a) poke things in a socket (b) stay away from pylons (c) stop if a part gets hot (d) use small battery cells
24. 24.⚠️ About how many volts do home sockets in India supply? (a) 1.5 V (b) 9 V (c) 230 V (d) 12 V
25. 25.Which of these is not safe? (a) use small battery cells (b) fly kites in open fields (c) build with an adult near (d) touch a switch when wet
26. 26.True or false: to stay away from pylons is safe. (a) False (b) True
27. 27.⚠️ Is it safe to stop if a part gets hot? (a) not safe (b) safe
28. 28.Which of these is safe? (a) touch a fallen wire (b) poke things in a socket (c) keep drinks far away (d) throw cells in a fire
29. 29.True or false: to use mains for a project is safe. (a) False (b) True
30. 30.True or false: to climb an electric pole is safe. (a) False (b) True
31. 31.True or false: to fly kites in open fields is safe. (a) False (b) True
32. 32.Which of these is not safe? (a) dry your hands first (b) use mains for a project (c) stay away from pylons (d) build with an adult near
33. 33.Which of these is not safe? (a) stop if a part gets hot (b) fly kites in open fields (c) fly a kite near wires (d) take cells out after use
34. 34.True or false: to build with an adult near is safe. (a) False (b) True
35. 35.True or false: to build with an adult near is not safe. (a) True (b) False
36. 36.True or false: to dry your hands first is safe. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) stay away from pylons (b) use a cable with cuts (c) use small battery cells (d) keep drinks far away
38. 38.True or false: to dry your hands first is not safe. (a) False (b) True
39. 39.True or false: to keep drinks far away is safe. (a) True (b) False
40. 40.True or false: to keep drinks far away is not safe. (a) True (b) False

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