Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 139 · 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) 1.5 V (b) 230 V (c) 9 V (d) 12 V
2. 2.Which of these is safe? (a) open a phone charger (b) use a cable with cuts (c) stop if a part gets hot (d) throw cells in a fire
3. 3.⚠️ 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
4. 4.⚠️ 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) wait and watch (d) shout for an adult
5. 5.⚠️ Is it safe to dry your hands first? (a) safe (b) not safe
6. 6.⚠️ Is it safe to keep drinks far away? (a) safe (b) not safe
7. 7.⚠️ Who should be with you when you build a circuit? (a) nobody (b) a younger child (c) a trusted adult (d) a stranger online
8. 8.⚠️ Which power source should children use for electronics projects? (a) an inverter socket (b) a wall socket (c) a small battery pack (d) a mains extension board
9. 9.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a safe circuit (b) an open circuit (c) a short circuit (d) a parallel circuit
10. 10.True or false: to take cells out after use is not safe. (a) True (b) False
11. 11.⚠️ Is it safe to open a phone charger? (a) safe (b) not safe
12. 12.🔍 Which is the odd one out? (a) dry your hands first (b) throw cells in a fire (c) use mains for a project (d) climb an electric pole
13. 13.⚠️ Is it safe to fly a kite near wires? (a) not safe (b) safe
14. 14.🔍 Which is the odd one out? (a) fly kites in open fields (b) dry your hands first (c) throw cells in a fire (d) take cells out after use
15. 15.Which of these is not safe? (a) poke things in a socket (b) dry your hands first (c) take cells out after use (d) build with an adult near
16. 16.Which of these is not safe? (a) fly a kite near wires (b) fly kites in open fields (c) stop if a part gets hot (d) build with an adult near
17. 17.🔍 Which is the odd one out? (a) take cells out after use (b) use small battery cells (c) poke things in a socket (d) fly kites in open fields
18. 18.True or false: to use mains for a project is safe. (a) False (b) True
19. 19.⚠️ Is it safe to use mains for a project? (a) not safe (b) safe
20. 20.⚠️ Is it safe to fly kites in open fields? (a) safe (b) not safe
21. 21.🔍 Which is the odd one out? (a) climb an electric pole (b) stop if a part gets hot (c) touch a switch when wet (d) poke things in a socket
22. 22.⚠️ Is it safe to stay away from pylons? (a) safe (b) not safe
23. 23.True or false: to fly kites in open fields is not safe. (a) True (b) False
24. 24.⚠️ Is it safe to build with an adult near? (a) not safe (b) safe
25. 25.True or false: to stay away from pylons is safe. (a) True (b) False
26. 26.Which of these is not safe? (a) take cells out after use (b) fly kites in open fields (c) build with an adult near (d) touch a switch when wet
27. 27.🔍 Which is the odd one out? (a) keep drinks far away (b) open a phone charger (c) touch a switch when wet (d) fly a kite near wires
28. 28.True or false: to climb an electric pole is not safe. (a) True (b) False
29. 29.⚠️ Is it safe to take cells out after use? (a) not safe (b) safe
30. 30.Which of these is safe? (a) touch a switch when wet (b) open a phone charger (c) poke things in a socket (d) stay away from pylons
31. 31.Which of these is not safe? (a) keep drinks far away (b) fly kites in open fields (c) take cells out after use (d) open a phone charger
32. 32.Which of these is safe? (a) use a cable with cuts (b) poke things in a socket (c) build with an adult near (d) use mains for a project
33. 33.🔍 Which is the odd one out? (a) fly a kite near wires (b) take cells out after use (c) use small battery cells (d) fly kites in open fields
34. 34.True or false: to poke things in a socket is safe. (a) False (b) True
35. 35.⚠️ Is it safe to stop if a part gets hot? (a) safe (b) not safe
36. 36.True or false: to touch a fallen wire is safe. (a) False (b) True
37. 37.Which of these is safe? (a) throw cells in a fire (b) take cells out after use (c) fly a kite near wires (d) use mains for a project
38. 38.True or false: to keep drinks far away is not safe. (a) True (b) False
39. 39.True or false: to take cells out after use is safe. (a) False (b) True
40. 40.True or false: to use small battery cells is not safe. (a) False (b) True

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