Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 514 · 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 bulb (b) a long wire (c) a fuse or MCB (d) a plug top
2. 2.⚠️ Is it safe to climb an electric pole? (a) safe (b) not safe
3. 3.🔍 Which is the odd one out? (a) poke things in a socket (b) build with an adult near (c) touch a switch when wet (d) open a phone charger
4. 4.⚠️ Is it safe to dry your hands first? (a) not safe (b) safe
5. 5.⚠️ Which power source should children use for electronics projects? (a) a small battery pack (b) an inverter socket (c) a wall socket (d) a mains extension board
6. 6.Which of these is not safe? (a) take cells out after use (b) dry your hands first (c) climb an electric pole (d) fly kites in open fields
7. 7.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) wait and watch (b) shout for an adult (c) pull them by the hand (d) pour water on them
8. 8.🔍 Which is the odd one out? (a) throw cells in a fire (b) use a cable with cuts (c) take cells out after use (d) use mains for a project
9. 9.Which of these is not safe? (a) dry your hands first (b) keep drinks far away (c) use mains for a project (d) take cells out after use
10. 10.⚠️ About how many volts do home sockets in India supply? (a) 1.5 V (b) 12 V (c) 230 V (d) 9 V
11. 11.True or false: to take cells out after use is safe. (a) True (b) False
12. 12.⚠️ Is it safe to keep drinks far away? (a) not safe (b) safe
13. 13.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a safe circuit (b) an open circuit (c) a short circuit (d) a parallel circuit
14. 14.True or false: to fly a kite near wires is not safe. (a) True (b) False
15. 15.🔍 Which is the odd one out? (a) use a cable with cuts (b) use mains for a project (c) dry your hands first (d) open a phone charger
16. 16.True or false: to use small battery cells is safe. (a) True (b) False
17. 17.🔍 Which is the odd one out? (a) touch a fallen wire (b) fly kites in open fields (c) touch a switch when wet (d) throw cells in a fire
18. 18.True or false: to touch a fallen wire is safe. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) open a phone charger (b) fly a kite near wires (c) stay away from pylons (d) use mains for a project
20. 20.True or false: to use mains for a project is not safe. (a) True (b) False
21. 21.Which of these is not safe? (a) fly kites in open fields (b) touch a switch when wet (c) take cells out after use (d) use small battery cells
22. 22.Which of these is not safe? (a) stop if a part gets hot (b) fly kites in open fields (c) build with an adult near (d) poke things in a socket
23. 23.⚠️ Is it safe to stop if a part gets hot? (a) safe (b) not safe
24. 24.True or false: to climb an electric pole is not safe. (a) False (b) True
25. 25.Which of these is not safe? (a) use small battery cells (b) dry your hands first (c) open a phone charger (d) build with an adult near
26. 26.⚠️ Why must we never touch switches with wet hands? (a) water makes it cold (b) water carries current (c) it spoils the paint (d) it is just untidy
27. 27.⚠️ Is it safe to build with an adult near? (a) not safe (b) safe
28. 28.True or false: to fly kites in open fields is not safe. (a) False (b) True
29. 29.⚠️ Is it safe to throw cells in a fire? (a) not safe (b) safe
30. 30.Which of these is safe? (a) throw cells in a fire (b) touch a fallen wire (c) poke things in a socket (d) dry your hands first
31. 31.🔍 Which is the odd one out? (a) fly kites in open fields (b) stay away from pylons (c) use small battery cells (d) use mains for a project
32. 32.Which of these is safe? (a) touch a switch when wet (b) fly a kite near wires (c) keep drinks far away (d) poke things in a socket
33. 33.🔍 Which is the odd one out? (a) poke things in a socket (b) use mains for a project (c) keep drinks far away (d) use a cable with cuts
34. 34.True or false: to use small battery cells is not safe. (a) False (b) True
35. 35.True or false: to dry your hands first is safe. (a) True (b) False
36. 36.True or false: to fly kites in open fields is safe. (a) False (b) True
37. 37.True or false: to open a phone charger is safe. (a) False (b) True
38. 38.⚠️ Who should be with you when you build a circuit? (a) nobody (b) a younger child (c) a stranger online (d) a trusted adult
39. 39.⚠️ Is it safe to take cells out after use? (a) not safe (b) safe
40. 40.⚠️ Is it safe to stay away from pylons? (a) safe (b) not safe

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