Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 145 · 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 carries current (b) it spoils the paint (c) water makes it cold (d) it is just untidy
2. 2.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a fuse or MCB (b) a long wire (c) a bulb (d) a plug top
3. 3.Which of these is not safe? (a) dry your hands first (b) stop if a part gets hot (c) climb an electric pole (d) fly kites in open fields
4. 4.🔍 Which is the odd one out? (a) take cells out after use (b) touch a switch when wet (c) touch a fallen wire (d) climb an electric pole
5. 5.🔍 Which is the odd one out? (a) touch a switch when wet (b) keep drinks far away (c) dry your hands first (d) stop if a part gets hot
6. 6.⚠️ Is it safe to open a phone charger? (a) safe (b) not safe
7. 7.True or false: to open a phone charger is safe. (a) True (b) False
8. 8.Which of these is not safe? (a) stop if a part gets hot (b) keep drinks far away (c) use a cable with cuts (d) use small battery cells
9. 9.True or false: to build with an adult near is not safe. (a) True (b) False
10. 10.Which of these is not safe? (a) use mains for a project (b) use small battery cells (c) stop if a part gets hot (d) fly kites in open fields
11. 11.Which of these is safe? (a) climb an electric pole (b) take cells out after use (c) use a cable with cuts (d) use mains for a project
12. 12.⚠️ About how many volts do home sockets in India supply? (a) 9 V (b) 230 V (c) 1.5 V (d) 12 V
13. 13.🔍 Which is the odd one out? (a) dry your hands first (b) build with an adult near (c) throw cells in a fire (d) use small battery cells
14. 14.⚠️ Is it safe to throw cells in a fire? (a) not safe (b) safe
15. 15.🔍 Which is the odd one out? (a) stay away from pylons (b) use small battery cells (c) use mains for a project (d) fly kites in open fields
16. 16.Which of these is not safe? (a) use small battery cells (b) keep drinks far away (c) fly a kite near wires (d) take cells out after use
17. 17.⚠️ Is it safe to take cells out after use? (a) not safe (b) safe
18. 18.🔍 Which is the odd one out? (a) fly a kite near wires (b) stay away from pylons (c) stop if a part gets hot (d) use small battery cells
19. 19.⚠️ 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
20. 20.🔍 Which is the odd one out? (a) poke things in a socket (b) use mains for a project (c) touch a fallen wire (d) build with an adult near
21. 21.⚠️ 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) shout for an adult (d) pour water on them
22. 22.⚠️ Is it safe to climb an electric pole? (a) safe (b) not safe
23. 23.⚠️ Is it safe to fly kites in open fields? (a) safe (b) not safe
24. 24.Which of these is safe? (a) fly a kite near wires (b) build with an adult near (c) open a phone charger (d) poke things in a socket
25. 25.⚠️ Who should be with you when you build a circuit? (a) a trusted adult (b) a younger child (c) nobody (d) a stranger online
26. 26.🔍 Which is the odd one out? (a) fly a kite near wires (b) touch a fallen wire (c) poke things in a socket (d) stop if a part gets hot
27. 27.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a short circuit (b) an open circuit (c) a parallel circuit (d) a safe circuit
28. 28.⚠️ Is it safe to poke things in a socket? (a) not safe (b) safe
29. 29.⚠️ Is it safe to fly a kite near wires? (a) safe (b) not safe
30. 30.⚠️ Is it safe to build with an adult near? (a) not safe (b) safe
31. 31.🔍 Which is the odd one out? (a) stop if a part gets hot (b) poke things in a socket (c) take cells out after use (d) fly kites in open fields
32. 32.⚠️ Is it safe to keep drinks far away? (a) not safe (b) safe
33. 33.⚠️ Is it safe to touch a switch when wet? (a) safe (b) not safe
34. 34.⚠️ Is it safe to touch a fallen wire? (a) not safe (b) safe
35. 35.⚠️ Is it safe to use a cable with cuts? (a) safe (b) not safe
36. 36.Which of these is safe? (a) open a phone charger (b) use mains for a project (c) stay away from pylons (d) touch a fallen wire
37. 37.True or false: to climb an electric pole is not safe. (a) True (b) False
38. 38.⚠️ Is it safe to dry your hands first? (a) safe (b) not safe
39. 39.True or false: to stay away from pylons is safe. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) take cells out after use (b) build with an adult near (c) use small battery cells (d) touch a fallen wire

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