Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 940 · 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 power source should children use for electronics projects? (a) a wall socket (b) a small battery pack (c) a mains extension board (d) an inverter socket
3. 3.Which of these is not safe? (a) build with an adult near (b) keep drinks far away (c) touch a fallen wire (d) use small battery cells
4. 4.Which of these is not safe? (a) use small battery cells (b) build with an adult near (c) poke things in a socket (d) take cells out after use
5. 5.True or false: to use a cable with cuts is not safe. (a) True (b) False
6. 6.⚠️ Is it safe to keep drinks far away? (a) not safe (b) safe
7. 7.True or false: to keep drinks far away is safe. (a) False (b) True
8. 8.⚠️ Is it safe to fly a kite near wires? (a) not safe (b) safe
9. 9.True or false: to touch a fallen wire is safe. (a) False (b) True
10. 10.⚠️ Is it safe to stop if a part gets hot? (a) safe (b) not safe
11. 11.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a fuse or MCB (b) a long wire (c) a plug top (d) a bulb
12. 12.🔍 Which is the odd one out? (a) dry your hands first (b) touch a switch when wet (c) climb an electric pole (d) fly a kite near wires
13. 13.Which of these is safe? (a) use a cable with cuts (b) fly a kite near wires (c) stop if a part gets hot (d) use mains for a project
14. 14.Which of these is not safe? (a) throw cells in a fire (b) build with an adult near (c) stay away from pylons (d) use small battery cells
15. 15.⚠️ Is it safe to take cells out after use? (a) not safe (b) safe
16. 16.⚠️ Is it safe to throw cells in a fire? (a) safe (b) not safe
17. 17.True or false: to open a phone charger is not safe. (a) False (b) True
18. 18.⚠️ Is it safe to use a cable with cuts? (a) safe (b) not safe
19. 19.True or false: to fly kites in open fields is safe. (a) False (b) True
20. 20.True or false: to poke things in a socket is not safe. (a) False (b) True
21. 21.Which of these is not safe? (a) use mains for a project (b) take cells out after use (c) keep drinks far away (d) use small battery cells
22. 22.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) pull them by the hand (b) shout for an adult (c) wait and watch (d) pour water on them
23. 23.Which of these is safe? (a) take cells out after use (b) fly a kite near wires (c) climb an electric pole (d) touch a switch when wet
24. 24.Which of these is safe? (a) open a phone charger (b) touch a fallen wire (c) use mains for a project (d) fly kites in open fields
25. 25.🔍 Which is the odd one out? (a) fly kites in open fields (b) stop if a part gets hot (c) stay away from pylons (d) fly a kite near wires
26. 26.🔍 Which is the odd one out? (a) fly a kite near wires (b) use a cable with cuts (c) touch a fallen wire (d) build with an adult near
27. 27.⚠️ Is it safe to stay away from pylons? (a) not safe (b) safe
28. 28.True or false: to use mains for a project is safe. (a) True (b) False
29. 29.⚠️ Is it safe to dry your hands first? (a) not safe (b) safe
30. 30.🔍 Which is the odd one out? (a) build with an adult near (b) touch a fallen wire (c) stay away from pylons (d) take cells out after use
31. 31.True or false: to take cells out after use is not safe. (a) True (b) False
32. 32.⚠️ Is it safe to touch a fallen wire? (a) safe (b) not safe
33. 33.Which of these is not safe? (a) stay away from pylons (b) keep drinks far away (c) use a cable with cuts (d) dry your hands first
34. 34.True or false: to take cells out after use is safe. (a) True (b) False
35. 35.True or false: to fly a kite near wires is safe. (a) False (b) True
36. 36.⚠️ Is it safe to touch a switch when wet? (a) safe (b) not safe
37. 37.Which of these is safe? (a) use mains for a project (b) use small battery cells (c) throw cells in a fire (d) touch a fallen wire
38. 38.⚠️ 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
39. 39.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a safe circuit (b) a short circuit (c) a parallel circuit (d) an open circuit
40. 40.Which of these is not safe? (a) dry your hands first (b) build with an adult near (c) climb an electric pole (d) fly kites in open fields

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