Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 381 · 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.⚠️ About how many volts do home sockets in India supply? (a) 9 V (b) 1.5 V (c) 230 V (d) 12 V
2. 2.Which of these is not safe? (a) stop if a part gets hot (b) stay away from pylons (c) keep drinks far away (d) touch a switch when wet
3. 3.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a long wire (b) a fuse or MCB (c) a bulb (d) a plug top
4. 4.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a parallel circuit (b) an open circuit (c) a short circuit (d) a safe circuit
5. 5.Which of these is safe? (a) touch a fallen wire (b) open a phone charger (c) poke things in a socket (d) stay away from pylons
6. 6.Which of these is not safe? (a) dry your hands first (b) stop if a part gets hot (c) build with an adult near (d) fly a kite near wires
7. 7.⚠️ 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) shout for an adult (d) pull them by the hand
8. 8.Which of these is not safe? (a) stay away from pylons (b) touch a fallen wire (c) build with an adult near (d) dry your hands first
9. 9.⚠️ Is it safe to keep drinks far away? (a) safe (b) not safe
10. 10.🔍 Which is the odd one out? (a) take cells out after use (b) touch a switch when wet (c) dry your hands first (d) stop if a part gets hot
11. 11.True or false: to take cells out after use is safe. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) use mains for a project (b) touch a switch when wet (c) build with an adult near (d) throw cells in a fire
13. 13.⚠️ Is it safe to stop if a part gets hot? (a) safe (b) not safe
14. 14.Which of these is safe? (a) poke things in a socket (b) touch a switch when wet (c) keep drinks far away (d) throw cells in a fire
15. 15.🔍 Which is the odd one out? (a) fly kites in open fields (b) open a phone charger (c) keep drinks far away (d) use small battery cells
16. 16.True or false: to stop if a part gets hot is not safe. (a) False (b) True
17. 17.⚠️ Is it safe to climb an electric pole? (a) not safe (b) safe
18. 18.⚠️ Is it safe to touch a fallen wire? (a) not safe (b) safe
19. 19.🔍 Which is the odd one out? (a) keep drinks far away (b) use small battery cells (c) stay away from pylons (d) throw cells in a fire
20. 20.🔍 Which is the odd one out? (a) fly a kite near wires (b) fly kites in open fields (c) use a cable with cuts (d) open a phone charger
21. 21.True or false: to use small battery cells is not safe. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) use small battery cells (b) keep drinks far away (c) fly kites in open fields (d) use mains for a project
23. 23.🔍 Which is the odd one out? (a) use small battery cells (b) use mains for a project (c) climb an electric pole (d) touch a switch when wet
24. 24.🔍 Which is the odd one out? (a) stay away from pylons (b) touch a switch when wet (c) touch a fallen wire (d) use a cable with cuts
25. 25.⚠️ Is it safe to build with an adult near? (a) safe (b) not safe
26. 26.⚠️ Why must we never touch switches with wet hands? (a) it is just untidy (b) it spoils the paint (c) water carries current (d) water makes it cold
27. 27.Which of these is safe? (a) poke things in a socket (b) touch a switch when wet (c) fly a kite near wires (d) build with an adult near
28. 28.True or false: to use a cable with cuts is not safe. (a) False (b) True
29. 29.Which of these is not safe? (a) keep drinks far away (b) build with an adult near (c) take cells out after use (d) use mains for a project
30. 30.⚠️ Who should be with you when you build a circuit? (a) a stranger online (b) a trusted adult (c) a younger child (d) nobody
31. 31.Which of these is safe? (a) open a phone charger (b) fly kites in open fields (c) touch a fallen wire (d) use a cable with cuts
32. 32.Which of these is safe? (a) take cells out after use (b) fly a kite near wires (c) use mains for a project (d) throw cells in a fire
33. 33.⚠️ 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
34. 34.🔍 Which is the odd one out? (a) dry your hands first (b) stop if a part gets hot (c) fly a kite near wires (d) build with an adult near
35. 35.Which of these is not safe? (a) keep drinks far away (b) throw cells in a fire (c) stop if a part gets hot (d) fly kites in open fields
36. 36.Which of these is not safe? (a) stop if a part gets hot (b) build with an adult near (c) poke things in a socket (d) use small battery cells
37. 37.🔍 Which is the odd one out? (a) fly a kite near wires (b) use mains for a project (c) dry your hands first (d) open a phone charger
38. 38.Which of these is not safe? (a) fly kites in open fields (b) take cells out after use (c) use a cable with cuts (d) dry your hands first
39. 39.Which of these is safe? (a) touch a switch when wet (b) fly a kite near wires (c) stop if a part gets hot (d) touch a fallen wire
40. 40.⚠️ Is it safe to throw cells in a fire? (a) safe (b) not safe

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