Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 907 · 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 not safe? (a) take cells out after use (b) stay away from pylons (c) climb an electric pole (d) build with an adult near
2. 2.True or false: to open a phone charger is not safe. (a) True (b) False
3. 3.Which of these is safe? (a) use a cable with cuts (b) open a phone charger (c) keep drinks far away (d) climb an electric pole
4. 4.⚠️ Is it safe to use mains for a project? (a) safe (b) not safe
5. 5.Which of these is not safe? (a) keep drinks far away (b) fly a kite near wires (c) build with an adult near (d) dry your hands first
6. 6.⚠️ 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
7. 7.⚠️ Is it safe to fly kites in open fields? (a) safe (b) not safe
8. 8.True or false: to keep drinks far away is safe. (a) True (b) False
9. 9.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a plug top (b) a bulb (c) a fuse or MCB (d) a long wire
10. 10.True or false: to use a cable with cuts is safe. (a) False (b) True
11. 11.⚠️ Why must we never touch switches with wet hands? (a) it is just untidy (b) water carries current (c) it spoils the paint (d) water makes it cold
12. 12.Which of these is not safe? (a) stop if a part gets hot (b) touch a fallen wire (c) fly kites in open fields (d) keep drinks far away
13. 13.True or false: to keep drinks far away is not safe. (a) False (b) True
14. 14.Which of these is not safe? (a) stop if a part gets hot (b) dry your hands first (c) poke things in a socket (d) stay away from pylons
15. 15.Which of these is not safe? (a) dry your hands first (b) fly kites in open fields (c) take cells out after use (d) use a cable with cuts
16. 16.True or false: to open a phone charger is safe. (a) True (b) False
17. 17.⚠️ Is it safe to dry your hands first? (a) safe (b) not safe
18. 18.Which of these is safe? (a) touch a switch when wet (b) fly a kite near wires (c) stay away from pylons (d) touch a fallen wire
19. 19.Which of these is safe? (a) open a phone charger (b) stop if a part gets hot (c) touch a switch when wet (d) use a cable with cuts
20. 20.⚠️ About how many volts do home sockets in India supply? (a) 9 V (b) 12 V (c) 1.5 V (d) 230 V
21. 21.🔍 Which is the odd one out? (a) use small battery cells (b) fly a kite near wires (c) keep drinks far away (d) fly kites in open fields
22. 22.🔍 Which is the odd one out? (a) climb an electric pole (b) open a phone charger (c) touch a fallen wire (d) stay away from pylons
23. 23.🔍 Which is the odd one out? (a) use small battery cells (b) use a cable with cuts (c) dry your hands first (d) build with an adult near
24. 24.⚠️ Is it safe to touch a switch when wet? (a) not safe (b) safe
25. 25.🔍 Which is the odd one out? (a) build with an adult near (b) open a phone charger (c) use a cable with cuts (d) throw cells in a fire
26. 26.🔍 Which is the odd one out? (a) open a phone charger (b) use a cable with cuts (c) take cells out after use (d) climb an electric pole
27. 27.Which of these is safe? (a) dry your hands first (b) use mains for a project (c) climb an electric pole (d) poke things in a socket
28. 28.Which of these is not safe? (a) take cells out after use (b) throw cells in a fire (c) stop if a part gets hot (d) stay away from pylons
29. 29.⚠️ Is it safe to fly a kite near wires? (a) safe (b) not safe
30. 30.True or false: to fly a kite near wires is safe. (a) False (b) True
31. 31.⚠️ Is it safe to build with an adult near? (a) not safe (b) safe
32. 32.True or false: to throw cells in a fire is safe. (a) False (b) True
33. 33.True or false: to build with an adult near is not safe. (a) False (b) True
34. 34.🔍 Which is the odd one out? (a) stop if a part gets hot (b) open a phone charger (c) touch a switch when wet (d) throw cells in a fire
35. 35.⚠️ Is it safe to touch a fallen wire? (a) safe (b) not safe
36. 36.True or false: to dry your hands first is not safe. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) stop if a part gets hot (b) stay away from pylons (c) open a phone charger (d) use small battery cells
38. 38.🔍 Which is the odd one out? (a) touch a switch when wet (b) climb an electric pole (c) keep drinks far away (d) touch a fallen wire
39. 39.🔍 Which is the odd one out? (a) use small battery cells (b) poke things in a socket (c) open a phone charger (d) touch a fallen wire
40. 40.🔍 Which is the odd one out? (a) stop if a part gets hot (b) keep drinks far away (c) build with an adult near (d) touch a switch when wet

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