Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 82 · 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 is the odd one out? (a) stop if a part gets hot (b) throw cells in a fire (c) use small battery cells (d) keep drinks far away
2. 2.🔍 Which is the odd one out? (a) use small battery cells (b) build with an adult near (c) open a phone charger (d) take cells out after use
3. 3.True or false: to dry your hands first is not safe. (a) True (b) False
4. 4.⚠️ Is it safe to stop if a part gets hot? (a) safe (b) not safe
5. 5.⚠️ About how many volts do home sockets in India supply? (a) 9 V (b) 230 V (c) 12 V (d) 1.5 V
6. 6.True or false: to build with an adult near is not safe. (a) False (b) True
7. 7.⚠️ Is it safe to open a phone charger? (a) safe (b) not safe
8. 8.True or false: to use a cable with cuts is safe. (a) True (b) False
9. 9.⚠️ Why must we never touch switches with wet hands? (a) water carries current (b) it spoils the paint (c) it is just untidy (d) water makes it cold
10. 10.True or false: to build with an adult near is safe. (a) True (b) False
11. 11.🔍 Which is the odd one out? (a) stay away from pylons (b) use a cable with cuts (c) poke things in a socket (d) use mains for a project
12. 12.True or false: to use small battery cells is not safe. (a) False (b) True
13. 13.⚠️ Which power source should children use for electronics projects? (a) a small battery pack (b) a wall socket (c) an inverter socket (d) a mains extension board
14. 14.🔍 Which is the odd one out? (a) use small battery cells (b) stay away from pylons (c) dry your hands first (d) use a cable with cuts
15. 15.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a long wire (b) a bulb (c) a fuse or MCB (d) a plug top
16. 16.Which of these is safe? (a) throw cells in a fire (b) fly kites in open fields (c) touch a fallen wire (d) use mains for a project
17. 17.🔍 Which is the odd one out? (a) throw cells in a fire (b) dry your hands first (c) use mains for a project (d) poke things in a socket
18. 18.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) wait and watch (b) pull them by the hand (c) shout for an adult (d) pour water on them
19. 19.⚠️ Is it safe to use mains for a project? (a) safe (b) not safe
20. 20.🔍 Which is the odd one out? (a) open a phone charger (b) poke things in a socket (c) use mains for a project (d) stop if a part gets hot
21. 21.True or false: to keep drinks far away is not safe. (a) True (b) False
22. 22.⚠️ Is it safe to fly kites in open fields? (a) not safe (b) safe
23. 23.Which of these is safe? (a) dry your hands first (b) fly a kite near wires (c) use a cable with cuts (d) use mains for a project
24. 24.🔍 Which is the odd one out? (a) poke things in a socket (b) touch a switch when wet (c) fly a kite near wires (d) fly kites in open fields
25. 25.True or false: to take cells out after use is not safe. (a) False (b) True
26. 26.⚠️ Is it safe to use a cable with cuts? (a) not safe (b) safe
27. 27.Which of these is safe? (a) use mains for a project (b) touch a switch when wet (c) poke things in a socket (d) build with an adult near
28. 28.🔍 Which is the odd one out? (a) fly a kite near wires (b) use mains for a project (c) poke things in a socket (d) keep drinks far away
29. 29.⚠️ Is it safe to touch a fallen wire? (a) safe (b) not safe
30. 30.⚠️ Who should be with you when you build a circuit? (a) a stranger online (b) nobody (c) a younger child (d) a trusted adult
31. 31.True or false: to fly a kite near wires is not safe. (a) True (b) False
32. 32.True or false: to throw cells in a fire is not safe. (a) False (b) True
33. 33.Which of these is not safe? (a) stop if a part gets hot (b) fly kites in open fields (c) use mains for a project (d) stay away from pylons
34. 34.⚠️ Is it safe to take cells out after use? (a) not safe (b) safe
35. 35.🔍 Which is the odd one out? (a) build with an adult near (b) poke things in a socket (c) fly kites in open fields (d) stay away from pylons
36. 36.True or false: to throw cells in a fire is safe. (a) False (b) True
37. 37.Which of these is not safe? (a) dry your hands first (b) poke things in a socket (c) keep drinks far away (d) fly kites in open fields
38. 38.⚠️ 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
39. 39.True or false: to use mains for a project is not safe. (a) False (b) True
40. 40.True or false: to stop if a part gets hot is safe. (a) False (b) True

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