Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 799 · 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) 230 V (c) 9 V (d) 1.5 V
2. 2.🔍 Which is the odd one out? (a) use small battery cells (b) throw cells in a fire (c) build with an adult near (d) stop if a part gets hot
3. 3.⚠️ Is it safe to climb an electric pole? (a) not safe (b) safe
4. 4.🔍 Which is the odd one out? (a) fly kites in open fields (b) fly a kite near wires (c) use small battery cells (d) build with an adult near
5. 5.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a plug top (b) a bulb (c) a long wire (d) a fuse or MCB
6. 6.True or false: to poke things in a socket is safe. (a) True (b) False
7. 7.⚠️ Is it safe to stop if a part gets hot? (a) safe (b) not safe
8. 8.Which of these is safe? (a) dry your hands first (b) fly a kite near wires (c) touch a switch when wet (d) throw cells in a fire
9. 9.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) pull them by the hand (b) wait and watch (c) pour water on them (d) shout for an adult
10. 10.⚠️ Is it safe to use a cable with cuts? (a) not safe (b) safe
11. 11.Which of these is not safe? (a) use small battery cells (b) stay away from pylons (c) fly a kite near wires (d) stop if a part gets hot
12. 12.🔍 Which is the odd one out? (a) take cells out after use (b) use a cable with cuts (c) climb an electric pole (d) poke things in a socket
13. 13.🔍 Which is the odd one out? (a) stop if a part gets hot (b) stay away from pylons (c) climb an electric pole (d) build with an adult near
14. 14.🔍 Which is the odd one out? (a) use small battery cells (b) touch a switch when wet (c) use mains for a project (d) poke things in a socket
15. 15.⚠️ Is it safe to poke things in a socket? (a) safe (b) not safe
16. 16.⚠️ 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
17. 17.True or false: to stop if a part gets hot is safe. (a) False (b) True
18. 18.⚠️ Who should be with you when you build a circuit? (a) nobody (b) a stranger online (c) a younger child (d) a trusted adult
19. 19.⚠️ Is it safe to take cells out after use? (a) not safe (b) safe
20. 20.True or false: to stay away from pylons is not safe. (a) True (b) False
21. 21.Which of these is safe? (a) open a phone charger (b) use mains for a project (c) climb an electric pole (d) build with an adult near
22. 22.⚠️ Is it safe to dry your hands first? (a) not safe (b) safe
23. 23.🔍 Which is the odd one out? (a) climb an electric pole (b) stay away from pylons (c) touch a switch when wet (d) throw cells in a fire
24. 24.Which of these is not safe? (a) keep drinks far away (b) take cells out after use (c) open a phone charger (d) build with an adult near
25. 25.🔍 Which is the odd one out? (a) use mains for a project (b) dry your hands first (c) build with an adult near (d) use small battery cells
26. 26.True or false: to dry your hands first is not safe. (a) True (b) False
27. 27.True or false: to use small battery cells is not safe. (a) False (b) True
28. 28.True or false: to stay away from pylons is safe. (a) True (b) False
29. 29.True or false: to fly a kite near wires is not safe. (a) True (b) False
30. 30.Which of these is not safe? (a) fly kites in open fields (b) stay away from pylons (c) poke things in a socket (d) keep drinks far away
31. 31.Which of these is safe? (a) poke things in a socket (b) fly kites in open fields (c) use mains for a project (d) touch a fallen wire
32. 32.⚠️ Why must we never touch switches with wet hands? (a) it is just untidy (b) water carries current (c) water makes it cold (d) it spoils the paint
33. 33.🔍 Which is the odd one out? (a) open a phone charger (b) dry your hands first (c) poke things in a socket (d) touch a switch when wet
34. 34.⚠️ Is it safe to open a phone charger? (a) not safe (b) safe
35. 35.Which of these is safe? (a) climb an electric pole (b) open a phone charger (c) use small battery cells (d) poke things in a socket
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) a safe circuit (c) an open circuit (d) a parallel circuit
37. 37.Which of these is not safe? (a) take cells out after use (b) build with an adult near (c) use mains for a project (d) use small battery cells
38. 38.⚠️ Is it safe to build with an adult near? (a) safe (b) not safe
39. 39.Which of these is not safe? (a) throw cells in a fire (b) keep drinks far away (c) use small battery cells (d) build with an adult near
40. 40.Which of these is not safe? (a) build with an adult near (b) take cells out after use (c) climb an electric pole (d) use small battery cells

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