Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 601 · 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) stay away from pylons (b) dry your hands first (c) use small battery cells (d) use mains for a project
2. 2.⚠️ 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) an open circuit (d) a short circuit
3. 3.Which of these is safe? (a) use small battery cells (b) poke things in a socket (c) open a phone charger (d) touch a fallen wire
4. 4.⚠️ About how many volts do home sockets in India supply? (a) 9 V (b) 230 V (c) 1.5 V (d) 12 V
5. 5.⚠️ Why must we never touch switches with wet hands? (a) water carries current (b) water makes it cold (c) it spoils the paint (d) it is just untidy
6. 6.Which of these is not safe? (a) throw cells in a fire (b) keep drinks far away (c) dry your hands first (d) stay away from pylons
7. 7.🔍 Which is the odd one out? (a) take cells out after use (b) climb an electric pole (c) build with an adult near (d) keep drinks far away
8. 8.⚠️ 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
9. 9.⚠️ Is it safe to use small battery cells? (a) safe (b) not safe
10. 10.⚠️ Is it safe to climb an electric pole? (a) not safe (b) safe
11. 11.🔍 Which is the odd one out? (a) touch a switch when wet (b) use mains for a project (c) throw cells in a fire (d) keep drinks far away
12. 12.🔍 Which is the odd one out? (a) dry your hands first (b) stay away from pylons (c) open a phone charger (d) keep drinks far away
13. 13.True or false: to use mains for a project is safe. (a) False (b) True
14. 14.True or false: to use small battery cells is not safe. (a) False (b) True
15. 15.⚠️ Is it safe to use mains for a project? (a) not safe (b) safe
16. 16.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a long wire (b) a plug top (c) a bulb (d) a fuse or MCB
17. 17.True or false: to use a cable with cuts is safe. (a) False (b) True
18. 18.🔍 Which is the odd one out? (a) stay away from pylons (b) touch a switch when wet (c) use small battery cells (d) dry your hands first
19. 19.⚠️ Who should be with you when you build a circuit? (a) a stranger online (b) a younger child (c) a trusted adult (d) nobody
20. 20.Which of these is not safe? (a) keep drinks far away (b) take cells out after use (c) dry your hands first (d) open a phone charger
21. 21.⚠️ Is it safe to take cells out after use? (a) not safe (b) safe
22. 22.🔍 Which is the odd one out? (a) throw cells in a fire (b) open a phone charger (c) build with an adult near (d) touch a switch when wet
23. 23.⚠️ Is it safe to keep drinks far away? (a) safe (b) not safe
24. 24.Which of these is not safe? (a) take cells out after use (b) build with an adult near (c) poke things in a socket (d) keep drinks far away
25. 25.🔍 Which is the odd one out? (a) climb an electric pole (b) stay away from pylons (c) fly a kite near wires (d) throw cells in a fire
26. 26.True or false: to touch a fallen wire is safe. (a) True (b) False
27. 27.Which of these is not safe? (a) touch a fallen wire (b) use small battery cells (c) stop if a part gets hot (d) stay away from pylons
28. 28.True or false: to stay away from pylons is safe. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) dry your hands first (b) stop if a part gets hot (c) use a cable with cuts (d) take cells out after use
30. 30.⚠️ Is it safe to open a phone charger? (a) safe (b) not safe
31. 31.⚠️ Is it safe to throw cells in a fire? (a) safe (b) not safe
32. 32.🔍 Which is the odd one out? (a) stop if a part gets hot (b) build with an adult near (c) touch a fallen wire (d) stay away from pylons
33. 33.🔍 Which is the odd one out? (a) use mains for a project (b) use small battery cells (c) touch a switch when wet (d) open a phone charger
34. 34.Which of these is not safe? (a) stay away from pylons (b) keep drinks far away (c) fly a kite near wires (d) take cells out after use
35. 35.🔍 Which is the odd one out? (a) build with an adult near (b) take cells out after use (c) poke things in a socket (d) keep drinks far away
36. 36.True or false: to take cells out after use is safe. (a) False (b) True
37. 37.⚠️ Is it safe to fly kites in open fields? (a) not safe (b) safe
38. 38.🔍 Which is the odd one out? (a) touch a switch when wet (b) open a phone charger (c) stop if a part gets hot (d) poke things in a socket
39. 39.⚠️ Is it safe to poke things in a socket? (a) safe (b) not safe
40. 40.True or false: to dry your hands first is not safe. (a) False (b) True

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