Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 733 · 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 poke things in a socket is safe. (a) True (b) False
2. 2.⚠️ 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
3. 3.⚠️ Is it safe to throw cells in a fire? (a) safe (b) not safe
4. 4.🔍 Which is the odd one out? (a) stop if a part gets hot (b) fly a kite near wires (c) throw cells in a fire (d) open a phone charger
5. 5.⚠️ About how many volts do home sockets in India supply? (a) 12 V (b) 230 V (c) 1.5 V (d) 9 V
6. 6.⚠️ 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
7. 7.🔍 Which is the odd one out? (a) touch a switch when wet (b) use small battery cells (c) touch a fallen wire (d) climb an electric pole
8. 8.Which of these is not safe? (a) use small battery cells (b) keep drinks far away (c) take cells out after use (d) use a cable with cuts
9. 9.⚠️ Is it safe to fly kites in open fields? (a) not safe (b) safe
10. 10.Which of these is safe? (a) stop if a part gets hot (b) throw cells in a fire (c) touch a fallen wire (d) use a cable with cuts
11. 11.True or false: to touch a fallen wire is not safe. (a) True (b) False
12. 12.⚠️ Is it safe to use a cable with cuts? (a) not safe (b) safe
13. 13.⚠️ Is it safe to climb an electric pole? (a) safe (b) not safe
14. 14.Which of these is safe? (a) throw cells in a fire (b) dry your hands first (c) touch a switch when wet (d) use mains for a project
15. 15.🔍 Which is the odd one out? (a) fly a kite near wires (b) touch a switch when wet (c) keep drinks far away (d) climb an electric pole
16. 16.True or false: to fly kites in open fields is not safe. (a) False (b) True
17. 17.True or false: to use a cable with cuts is not safe. (a) True (b) False
18. 18.True or false: to open a phone charger is safe. (a) True (b) False
19. 19.Which of these is not safe? (a) touch a fallen wire (b) use small battery cells (c) fly kites in open fields (d) stay away from pylons
20. 20.⚠️ Is it safe to touch a switch when wet? (a) not safe (b) safe
21. 21.🔍 Which is the odd one out? (a) stay away from pylons (b) use mains for a project (c) poke things in a socket (d) touch a fallen wire
22. 22.Which of these is safe? (a) use a cable with cuts (b) touch a fallen wire (c) take cells out after use (d) use mains for a project
23. 23.Which of these is not safe? (a) build with an adult near (b) dry your hands first (c) stay away from pylons (d) use mains for a project
24. 24.⚠️ Who should be with you when you build a circuit? (a) a younger child (b) nobody (c) a stranger online (d) a trusted adult
25. 25.⚠️ Is it safe to open a phone charger? (a) not safe (b) safe
26. 26.🔍 Which is the odd one out? (a) fly a kite near wires (b) take cells out after use (c) use mains for a project (d) touch a switch when wet
27. 27.True or false: to dry your hands first is safe. (a) False (b) True
28. 28.⚠️ 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
29. 29.🔍 Which is the odd one out? (a) stop if a part gets hot (b) take cells out after use (c) open a phone charger (d) stay away from pylons
30. 30.🔍 Which is the odd one out? (a) open a phone charger (b) dry your hands first (c) use a cable with cuts (d) touch a fallen wire
31. 31.True or false: to touch a fallen wire is safe. (a) False (b) True
32. 32.Which of these is not safe? (a) dry your hands first (b) fly kites in open fields (c) stay away from pylons (d) touch a switch when wet
33. 33.⚠️ Is it safe to touch a fallen wire? (a) safe (b) not safe
34. 34.⚠️ Is it safe to use small battery cells? (a) safe (b) not safe
35. 35.⚠️ Is it safe to poke things in a socket? (a) safe (b) not safe
36. 36.⚠️ Is it safe to take cells out after use? (a) safe (b) not safe
37. 37.🔍 Which is the odd one out? (a) stay away from pylons (b) dry your hands first (c) use a cable with cuts (d) keep drinks far away
38. 38.True or false: to poke things in a socket is not safe. (a) True (b) False
39. 39.⚠️ 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
40. 40.Which of these is safe? (a) open a phone charger (b) fly a kite near wires (c) poke things in a socket (d) use small battery cells

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