Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 657 · 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.⚠️ About how many volts do home sockets in India supply? (a) 12 V (b) 9 V (c) 1.5 V (d) 230 V
2. 2.True or false: to dry your hands first is safe. (a) False (b) True
3. 3.Which of these is not safe? (a) fly kites in open fields (b) keep drinks far away (c) stay away from pylons (d) fly a kite near wires
4. 4.True or false: to touch a switch when wet is not safe. (a) True (b) False
5. 5.Which of these is safe? (a) use mains for a project (b) touch a switch when wet (c) touch a fallen wire (d) keep drinks far away
6. 6.🔍 Which is the odd one out? (a) poke things in a socket (b) open a phone charger (c) keep drinks far away (d) use mains for a project
7. 7.Which of these is not safe? (a) keep drinks far away (b) fly kites in open fields (c) take cells out after use (d) touch a switch when wet
8. 8.🔍 Which is the odd one out? (a) fly a kite near wires (b) take cells out after use (c) keep drinks far away (d) use small battery cells
9. 9.⚠️ Is it safe to touch a fallen wire? (a) safe (b) not safe
10. 10.⚠️ 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
11. 11.⚠️ Is it safe to touch a switch when wet? (a) not safe (b) safe
12. 12.🔍 Which is the odd one out? (a) keep drinks far away (b) stop if a part gets hot (c) climb an electric pole (d) build with an adult near
13. 13.Which of these is safe? (a) poke things in a socket (b) throw cells in a fire (c) touch a switch when wet (d) build with an adult near
14. 14.🔍 Which is the odd one out? (a) touch a fallen wire (b) dry your hands first (c) use small battery cells (d) keep drinks far away
15. 15.🔍 Which is the odd one out? (a) use mains for a project (b) climb an electric pole (c) open a phone charger (d) use small battery cells
16. 16.🔍 Which is the odd one out? (a) open a phone charger (b) touch a switch when wet (c) stay away from pylons (d) fly a kite near wires
17. 17.True or false: to touch a fallen wire is not safe. (a) True (b) False
18. 18.⚠️ Is it safe to use mains for a project? (a) safe (b) not safe
19. 19.🔍 Which is the odd one out? (a) poke things in a socket (b) stop if a part gets hot (c) open a phone charger (d) touch a fallen wire
20. 20.⚠️ Who should be with you when you build a circuit? (a) nobody (b) a younger child (c) a stranger online (d) a trusted adult
21. 21.🔍 Which is the odd one out? (a) keep drinks far away (b) stay away from pylons (c) touch a switch when wet (d) stop if a part gets hot
22. 22.Which of these is not safe? (a) keep drinks far away (b) touch a fallen wire (c) stop if a part gets hot (d) dry your hands first
23. 23.True or false: to fly kites in open fields is safe. (a) True (b) False
24. 24.⚠️ Is it safe to stop if a part gets hot? (a) not safe (b) safe
25. 25.⚠️ Why must we never touch switches with wet hands? (a) water makes it cold (b) water carries current (c) it is just untidy (d) it spoils the paint
26. 26.True or false: to build with an adult near is safe. (a) True (b) False
27. 27.Which of these is not safe? (a) build with an adult near (b) use a cable with cuts (c) keep drinks far away (d) fly kites in open fields
28. 28.True or false: to use mains for a project is safe. (a) False (b) True
29. 29.Which of these is not safe? (a) fly kites in open fields (b) take cells out after use (c) stop if a part gets hot (d) poke things in a socket
30. 30.Which of these is not safe? (a) keep drinks far away (b) dry your hands first (c) throw cells in a fire (d) use small battery cells
31. 31.True or false: to touch a fallen wire is safe. (a) False (b) True
32. 32.⚠️ Which power source should children use for electronics projects? (a) a wall socket (b) a mains extension board (c) a small battery pack (d) an inverter socket
33. 33.⚠️ Is it safe to use small battery cells? (a) safe (b) not safe
34. 34.Which of these is safe? (a) poke things in a socket (b) use mains for a project (c) use small battery cells (d) touch a switch when wet
35. 35.⚠️ Is it safe to keep drinks far away? (a) safe (b) not safe
36. 36.⚠️ Is it safe to fly a kite near wires? (a) safe (b) not safe
37. 37.True or false: to poke things in a socket is not safe. (a) False (b) True
38. 38.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a long wire (b) a bulb (c) a plug top (d) a fuse or MCB
39. 39.Which of these is safe? (a) use a cable with cuts (b) stay away from pylons (c) poke things in a socket (d) touch a switch when wet
40. 40.Which of these is safe? (a) touch a switch when wet (b) throw cells in a fire (c) use mains for a project (d) dry your hands first

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