Electronics Worksheet: Electrical Safety

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

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