Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 455 · 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.True or false: to use mains for a project is not safe. (a) False (b) True
2. 2.Which of these is not safe? (a) use small battery cells (b) fly kites in open fields (c) build with an adult near (d) touch a fallen wire
3. 3.Which of these is not safe? (a) fly kites in open fields (b) build with an adult near (c) touch a switch when wet (d) stop if a part gets hot
4. 4.⚠️ Is it safe to use mains for a project? (a) safe (b) not safe
5. 5.⚠️ About how many volts do home sockets in India supply? (a) 9 V (b) 12 V (c) 1.5 V (d) 230 V
6. 6.⚠️ Is it safe to touch a switch when wet? (a) safe (b) not safe
7. 7.⚠️ Why must we never touch switches with wet hands? (a) water makes it cold (b) it is just untidy (c) it spoils the paint (d) water carries current
8. 8.⚠️ Is it safe to climb an electric pole? (a) not safe (b) safe
9. 9.True or false: to touch a fallen wire is not safe. (a) True (b) False
10. 10.⚠️ Which power source should children use for electronics projects? (a) a mains extension board (b) a small battery pack (c) an inverter socket (d) a wall socket
11. 11.🔍 Which is the odd one out? (a) use mains for a project (b) stop if a part gets hot (c) dry your hands first (d) stay away from pylons
12. 12.Which of these is not safe? (a) dry your hands first (b) stay away from pylons (c) use a cable with cuts (d) take cells out after use
13. 13.🔍 Which is the odd one out? (a) touch a fallen wire (b) poke things in a socket (c) keep drinks far away (d) touch a switch when wet
14. 14.⚠️ 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
15. 15.Which of these is not safe? (a) fly a kite near wires (b) dry your hands first (c) stay away from pylons (d) use small battery cells
16. 16.True or false: to dry your hands first is safe. (a) True (b) False
17. 17.True or false: to throw cells in a fire is not safe. (a) True (b) False
18. 18.🔍 Which is the odd one out? (a) use small battery cells (b) use a cable with cuts (c) throw cells in a fire (d) touch a switch when wet
19. 19.Which of these is safe? (a) fly kites in open fields (b) fly a kite near wires (c) touch a switch when wet (d) poke things in a socket
20. 20.⚠️ Is it safe to use a cable with cuts? (a) not safe (b) safe
21. 21.True or false: to climb an electric pole is safe. (a) False (b) True
22. 22.⚠️ Is it safe to fly kites in open fields? (a) safe (b) not safe
23. 23.True or false: to touch a fallen wire is safe. (a) False (b) True
24. 24.Which of these is not safe? (a) take cells out after use (b) throw cells in a fire (c) use small battery cells (d) build with an adult near
25. 25.🔍 Which is the odd one out? (a) touch a switch when wet (b) build with an adult near (c) use small battery cells (d) take cells out after use
26. 26.⚠️ Is it safe to use small battery cells? (a) safe (b) not safe
27. 27.🔍 Which is the odd one out? (a) use a cable with cuts (b) stay away from pylons (c) keep drinks far away (d) fly kites in open fields
28. 28.🔍 Which is the odd one out? (a) use mains for a project (b) touch a switch when wet (c) throw cells in a fire (d) stop if a part gets hot
29. 29.Which of these is safe? (a) touch a switch when wet (b) use mains for a project (c) poke things in a socket (d) stop if a part gets hot
30. 30.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) an open circuit (b) a parallel circuit (c) a safe circuit (d) a short circuit
31. 31.🔍 Which is the odd one out? (a) fly a kite near wires (b) keep drinks far away (c) fly kites in open fields (d) use small battery cells
32. 32.⚠️ Who should be with you when you build a circuit? (a) a younger child (b) a stranger online (c) a trusted adult (d) nobody
33. 33.Which of these is safe? (a) stay away from pylons (b) touch a switch when wet (c) poke things in a socket (d) climb an electric pole
34. 34.⚠️ Is it safe to throw cells in a fire? (a) not safe (b) safe
35. 35.⚠️ Is it safe to take cells out after use? (a) safe (b) not safe
36. 36.🔍 Which is the odd one out? (a) stay away from pylons (b) dry your hands first (c) build with an adult near (d) poke things in a socket
37. 37.True or false: to use a cable with cuts is not safe. (a) True (b) False
38. 38.⚠️ Is it safe to build with an adult near? (a) safe (b) not safe
39. 39.True or false: to stop if a part gets hot is not safe. (a) True (b) False
40. 40.Which of these is safe? (a) use mains for a project (b) keep drinks far away (c) touch a fallen wire (d) use a cable with cuts

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