Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 684 · 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.⚠️ Why must we never touch switches with wet hands? (a) it is just untidy (b) water carries current (c) water makes it cold (d) it spoils the paint
2. 2.⚠️ 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) pull them by the hand (d) shout for an adult
3. 3.🔍 Which is the odd one out? (a) build with an adult near (b) use a cable with cuts (c) use small battery cells (d) fly kites in open fields
4. 4.Which of these is safe? (a) throw cells in a fire (b) open a phone charger (c) use small battery cells (d) use a cable with cuts
5. 5.Which of these is not safe? (a) keep drinks far away (b) touch a switch when wet (c) stay away from pylons (d) build with an adult near
6. 6.True or false: to take cells out after use is safe. (a) False (b) True
7. 7.⚠️ 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 parallel circuit (d) a short circuit
8. 8.True or false: to poke things in a socket is safe. (a) False (b) True
9. 9.🔍 Which is the odd one out? (a) fly a kite near wires (b) use mains for a project (c) open a phone charger (d) build with an adult near
10. 10.⚠️ Is it safe to use a cable with cuts? (a) not safe (b) safe
11. 11.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a bulb (b) a fuse or MCB (c) a long wire (d) a plug top
12. 12.True or false: to use a cable with cuts is not safe. (a) True (b) False
13. 13.Which of these is not safe? (a) build with an adult near (b) stop if a part gets hot (c) throw cells in a fire (d) stay away from pylons
14. 14.⚠️ Who should be with you when you build a circuit? (a) a stranger online (b) nobody (c) a trusted adult (d) a younger child
15. 15.🔍 Which is the odd one out? (a) fly a kite near wires (b) touch a fallen wire (c) throw cells in a fire (d) dry your hands first
16. 16.⚠️ Is it safe to stay away from pylons? (a) safe (b) not safe
17. 17.⚠️ Which power source should children use for electronics projects? (a) an inverter socket (b) a mains extension board (c) a wall socket (d) a small battery pack
18. 18.Which of these is safe? (a) touch a switch when wet (b) fly a kite near wires (c) touch a fallen wire (d) fly kites in open fields
19. 19.True or false: to touch a fallen wire is safe. (a) True (b) False
20. 20.Which of these is not safe? (a) climb an electric pole (b) build with an adult near (c) stay away from pylons (d) take cells out after use
21. 21.True or false: to fly a kite near wires is safe. (a) False (b) True
22. 22.True or false: to stay away from pylons is not safe. (a) True (b) False
23. 23.⚠️ Is it safe to fly kites in open fields? (a) safe (b) not safe
24. 24.True or false: to touch a switch when wet is safe. (a) True (b) False
25. 25.True or false: to use mains for a project is safe. (a) True (b) False
26. 26.⚠️ Is it safe to open a phone charger? (a) not safe (b) safe
27. 27.⚠️ About how many volts do home sockets in India supply? (a) 1.5 V (b) 12 V (c) 9 V (d) 230 V
28. 28.🔍 Which is the odd one out? (a) open a phone charger (b) stay away from pylons (c) touch a switch when wet (d) use a cable with cuts
29. 29.Which of these is not safe? (a) open a phone charger (b) stay away from pylons (c) fly kites in open fields (d) take cells out after use
30. 30.True or false: to fly kites in open fields is safe. (a) False (b) True
31. 31.⚠️ Is it safe to keep drinks far away? (a) safe (b) not safe
32. 32.Which of these is not safe? (a) keep drinks far away (b) take cells out after use (c) stay away from pylons (d) use a cable with cuts
33. 33.⚠️ Is it safe to stop if a part gets hot? (a) not safe (b) safe
34. 34.Which of these is not safe? (a) use mains for a project (b) stay away from pylons (c) use small battery cells (d) dry your hands first
35. 35.⚠️ Is it safe to build with an adult near? (a) not safe (b) safe
36. 36.True or false: to build with an adult near is not safe. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) throw cells in a fire (b) dry your hands first (c) stay away from pylons (d) build with an adult near
38. 38.Which of these is safe? (a) climb an electric pole (b) poke things in a socket (c) take cells out after use (d) touch a fallen wire
39. 39.⚠️ Is it safe to throw cells in a fire? (a) safe (b) not safe
40. 40.True or false: to throw cells in a fire is safe. (a) True (b) False

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