Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 317 · 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.⚠️ About how many volts do home sockets in India supply? (a) 9 V (b) 1.5 V (c) 230 V (d) 12 V
2. 2.True or false: to fly a kite near wires is safe. (a) True (b) False
3. 3.⚠️ Is it safe to touch a fallen wire? (a) safe (b) not safe
4. 4.🔍 Which is the odd one out? (a) touch a switch when wet (b) dry your hands first (c) use mains for a project (d) poke things in a socket
5. 5.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a short circuit (b) an open circuit (c) a parallel circuit (d) a safe circuit
6. 6.Which of these is not safe? (a) stop if a part gets hot (b) build with an adult near (c) dry your hands first (d) use mains for a project
7. 7.🔍 Which is the odd one out? (a) use small battery cells (b) keep drinks far away (c) build with an adult near (d) poke things in a socket
8. 8.⚠️ Is it safe to stop if a part gets hot? (a) safe (b) not safe
9. 9.True or false: to build with an adult near is safe. (a) True (b) False
10. 10.⚠️ Why must we never touch switches with wet hands? (a) it is just untidy (b) it spoils the paint (c) water makes it cold (d) water carries current
11. 11.⚠️ Is it safe to poke things in a socket? (a) not safe (b) safe
12. 12.⚠️ Is it safe to touch a switch when wet? (a) not safe (b) safe
13. 13.⚠️ Is it safe to stay away from pylons? (a) not safe (b) safe
14. 14.🔍 Which is the odd one out? (a) poke things in a socket (b) fly kites in open fields (c) climb an electric pole (d) open a phone charger
15. 15.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) wait and watch (b) pour water on them (c) shout for an adult (d) pull them by the hand
16. 16.True or false: to use small battery cells is not safe. (a) False (b) True
17. 17.⚠️ Is it safe to fly kites in open fields? (a) not safe (b) safe
18. 18.🔍 Which is the odd one out? (a) open a phone charger (b) use a cable with cuts (c) stop if a part gets hot (d) touch a fallen wire
19. 19.🔍 Which is the odd one out? (a) use a cable with cuts (b) build with an adult near (c) stay away from pylons (d) use small battery cells
20. 20.🔍 Which is the odd one out? (a) use small battery cells (b) take cells out after use (c) stay away from pylons (d) throw cells in a fire
21. 21.Which of these is not safe? (a) stay away from pylons (b) stop if a part gets hot (c) climb an electric pole (d) take cells out after use
22. 22.Which of these is not safe? (a) use a cable with cuts (b) stay away from pylons (c) take cells out after use (d) build with an adult near
23. 23.⚠️ Which power source should children use for electronics projects? (a) an inverter socket (b) a wall socket (c) a small battery pack (d) a mains extension board
24. 24.⚠️ Is it safe to climb an electric pole? (a) safe (b) not safe
25. 25.⚠️ Who should be with you when you build a circuit? (a) a trusted adult (b) a younger child (c) a stranger online (d) nobody
26. 26.🔍 Which is the odd one out? (a) climb an electric pole (b) touch a fallen wire (c) use mains for a project (d) stay away from pylons
27. 27.True or false: to stay away from pylons is not safe. (a) False (b) True
28. 28.True or false: to fly a kite near wires is not safe. (a) False (b) True
29. 29.True or false: to take cells out after use is not safe. (a) True (b) False
30. 30.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a plug top (b) a long wire (c) a bulb (d) a fuse or MCB
31. 31.Which of these is safe? (a) throw cells in a fire (b) fly a kite near wires (c) use a cable with cuts (d) take cells out after use
32. 32.Which of these is safe? (a) fly a kite near wires (b) open a phone charger (c) use a cable with cuts (d) use small battery cells
33. 33.🔍 Which is the odd one out? (a) use small battery cells (b) fly a kite near wires (c) dry your hands first (d) take cells out after use
34. 34.True or false: to use a cable with cuts is safe. (a) True (b) False
35. 35.Which of these is safe? (a) touch a switch when wet (b) use mains for a project (c) build with an adult near (d) fly a kite near wires
36. 36.⚠️ Is it safe to build with an adult near? (a) safe (b) not safe
37. 37.Which of these is not safe? (a) dry your hands first (b) take cells out after use (c) build with an adult near (d) touch a switch when wet
38. 38.🔍 Which is the odd one out? (a) use a cable with cuts (b) open a phone charger (c) throw cells in a fire (d) take cells out after use
39. 39.Which of these is safe? (a) throw cells in a fire (b) use mains for a project (c) touch a fallen wire (d) dry your hands first
40. 40.True or false: to use mains for a project is not safe. (a) True (b) False

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