Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 439 · 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.Which of these is safe? (a) use a cable with cuts (b) touch a switch when wet (c) stay away from pylons (d) climb an electric pole
2. 2.Which of these is safe? (a) keep drinks far away (b) throw cells in a fire (c) poke things in a socket (d) touch a switch when wet
3. 3.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a long wire (b) a fuse or MCB (c) a bulb (d) a plug top
4. 4.True or false: to dry your hands first is not safe. (a) True (b) False
5. 5.⚠️ Is it safe to take cells out after use? (a) safe (b) not safe
6. 6.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a parallel circuit (b) a safe circuit (c) a short circuit (d) an open circuit
7. 7.⚠️ Is it safe to use mains for a project? (a) safe (b) not safe
8. 8.🔍 Which is the odd one out? (a) open a phone charger (b) throw cells in a fire (c) keep drinks far away (d) touch a fallen wire
9. 9.⚠️ Is it safe to climb an electric pole? (a) not safe (b) safe
10. 10.🔍 Which is the odd one out? (a) stop if a part gets hot (b) use small battery cells (c) touch a switch when wet (d) build with an adult near
11. 11.🔍 Which is the odd one out? (a) take cells out after use (b) use a cable with cuts (c) fly kites in open fields (d) stop if a part gets hot
12. 12.⚠️ 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
13. 13.⚠️ Which power source should children use for electronics projects? (a) a mains extension board (b) a wall socket (c) a small battery pack (d) an inverter socket
14. 14.⚠️ About how many volts do home sockets in India supply? (a) 9 V (b) 1.5 V (c) 12 V (d) 230 V
15. 15.⚠️ Is it safe to stay away from pylons? (a) safe (b) not safe
16. 16.True or false: to touch a switch when wet is safe. (a) True (b) False
17. 17.Which of these is safe? (a) stop if a part gets hot (b) touch a switch when wet (c) use mains for a project (d) poke things in a socket
18. 18.⚠️ Is it safe to touch a fallen wire? (a) not safe (b) safe
19. 19.Which of these is safe? (a) poke things in a socket (b) use mains for a project (c) fly a kite near wires (d) fly kites in open fields
20. 20.⚠️ Is it safe to use small battery cells? (a) not safe (b) safe
21. 21.Which of these is safe? (a) throw cells in a fire (b) poke things in a socket (c) use a cable with cuts (d) build with an adult near
22. 22.⚠️ Is it safe to touch a switch when wet? (a) not safe (b) safe
23. 23.True or false: to use a cable with cuts is safe. (a) False (b) True
24. 24.Which of these is not safe? (a) stay away from pylons (b) build with an adult near (c) use mains for a project (d) keep drinks far away
25. 25.⚠️ Is it safe to poke things in a socket? (a) safe (b) not safe
26. 26.🔍 Which is the odd one out? (a) dry your hands first (b) poke things in a socket (c) fly a kite near wires (d) climb an electric pole
27. 27.⚠️ Is it safe to throw cells in a fire? (a) not safe (b) safe
28. 28.Which of these is not safe? (a) stay away from pylons (b) touch a fallen wire (c) fly kites in open fields (d) keep drinks far away
29. 29.Which of these is not safe? (a) poke things in a socket (b) take cells out after use (c) dry your hands first (d) build with an adult near
30. 30.True or false: to poke things in a socket is safe. (a) False (b) True
31. 31.Which of these is not safe? (a) fly kites in open fields (b) stay away from pylons (c) use small battery cells (d) open a phone charger
32. 32.True or false: to keep drinks far away is safe. (a) False (b) True
33. 33.Which of these is not safe? (a) touch a switch when wet (b) keep drinks far away (c) take cells out after use (d) use small battery cells
34. 34.🔍 Which is the odd one out? (a) use mains for a project (b) throw cells in a fire (c) touch a switch when wet (d) take cells out after use
35. 35.🔍 Which is the odd one out? (a) touch a fallen wire (b) stay away from pylons (c) keep drinks far away (d) stop if a part gets hot
36. 36.⚠️ Who should be with you when you build a circuit? (a) nobody (b) a trusted adult (c) a stranger online (d) a younger child
37. 37.⚠️ Is it safe to dry your hands first? (a) not safe (b) safe
38. 38.🔍 Which is the odd one out? (a) stop if a part gets hot (b) build with an adult near (c) use small battery cells (d) fly a kite near wires
39. 39.True or false: to throw cells in a fire is safe. (a) False (b) True
40. 40.True or false: to open a phone charger is not safe. (a) False (b) True

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