Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 807 · 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 spoils the paint (b) water makes it cold (c) water carries current (d) it is just untidy
2. 2.🔍 Which is the odd one out? (a) stay away from pylons (b) keep drinks far away (c) touch a switch when wet (d) dry your hands first
3. 3.Which of these is not safe? (a) touch a fallen wire (b) stop if a part gets hot (c) use small battery cells (d) fly kites in open fields
4. 4.🔍 Which is the odd one out? (a) use mains for a project (b) open a phone charger (c) stop if a part gets hot (d) fly a kite near wires
5. 5.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a plug top (b) a bulb (c) a fuse or MCB (d) a long wire
6. 6.True or false: to stop if a part gets hot is not safe. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) use mains for a project (b) use a cable with cuts (c) touch a switch when wet (d) use small battery cells
8. 8.🔍 Which is the odd one out? (a) stop if a part gets hot (b) keep drinks far away (c) take cells out after use (d) touch a fallen wire
9. 9.⚠️ 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) pour water on them (d) shout for an adult
10. 10.Which of these is safe? (a) stop if a part gets hot (b) open a phone charger (c) touch a fallen wire (d) throw cells in a fire
11. 11.⚠️ Is it safe to dry your hands first? (a) safe (b) not safe
12. 12.True or false: to use small battery cells is safe. (a) False (b) True
13. 13.True or false: to use mains for a project is not safe. (a) False (b) True
14. 14.True or false: to fly a kite near wires is not safe. (a) True (b) False
15. 15.⚠️ Is it safe to touch a fallen wire? (a) safe (b) not safe
16. 16.Which of these is safe? (a) use mains for a project (b) take cells out after use (c) open a phone charger (d) poke things in a socket
17. 17.Which of these is safe? (a) keep drinks far away (b) poke things in a socket (c) touch a fallen wire (d) open a phone charger
18. 18.🔍 Which is the odd one out? (a) use small battery cells (b) keep drinks far away (c) stop if a part gets hot (d) fly a kite near wires
19. 19.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a parallel circuit (b) a safe circuit (c) an open circuit (d) a short circuit
20. 20.⚠️ Is it safe to take cells out after use? (a) not safe (b) safe
21. 21.True or false: to climb an electric pole is safe. (a) False (b) True
22. 22.Which of these is not safe? (a) dry your hands first (b) build with an adult near (c) use mains for a project (d) stay away from pylons
23. 23.Which of these is not safe? (a) build with an adult near (b) climb an electric pole (c) keep drinks far away (d) stop if a part gets hot
24. 24.⚠️ Is it safe to keep drinks far away? (a) not safe (b) safe
25. 25.⚠️ Is it safe to use a cable with cuts? (a) not safe (b) safe
26. 26.True or false: to open a phone charger is safe. (a) True (b) False
27. 27.⚠️ Is it safe to climb an electric pole? (a) safe (b) not safe
28. 28.⚠️ Which power source should children use for electronics projects? (a) a mains extension board (b) an inverter socket (c) a wall socket (d) a small battery pack
29. 29.🔍 Which is the odd one out? (a) fly kites in open fields (b) throw cells in a fire (c) use small battery cells (d) build with an adult near
30. 30.True or false: to use a cable with cuts is safe. (a) False (b) True
31. 31.Which of these is safe? (a) fly a kite near wires (b) use a cable with cuts (c) dry your hands first (d) open a phone charger
32. 32.Which of these is not safe? (a) throw cells in a fire (b) stay away from pylons (c) take cells out after use (d) keep drinks far away
33. 33.True or false: to stop if a part gets hot is safe. (a) True (b) False
34. 34.⚠️ About how many volts do home sockets in India supply? (a) 230 V (b) 9 V (c) 1.5 V (d) 12 V
35. 35.Which of these is safe? (a) poke things in a socket (b) fly kites in open fields (c) fly a kite near wires (d) touch a switch when wet
36. 36.🔍 Which is the odd one out? (a) use a cable with cuts (b) keep drinks far away (c) touch a fallen wire (d) use mains for a project
37. 37.True or false: to build with an adult near is safe. (a) True (b) False
38. 38.🔍 Which is the odd one out? (a) stop if a part gets hot (b) use small battery cells (c) stay away from pylons (d) climb an electric pole
39. 39.⚠️ Who should be with you when you build a circuit? (a) a trusted adult (b) a stranger online (c) a younger child (d) nobody
40. 40.⚠️ Is it safe to throw cells in a fire? (a) safe (b) not safe

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