Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 373 · 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.⚠️ 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
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 safe circuit (c) a parallel circuit (d) a short circuit
3. 3.⚠️ Is it safe to use small battery cells? (a) not safe (b) safe
4. 4.Which of these is not safe? (a) keep drinks far away (b) take cells out after use (c) open a phone charger (d) dry your hands first
5. 5.🔍 Which is the odd one out? (a) dry your hands first (b) open a phone charger (c) fly a kite near wires (d) use mains for a project
6. 6.⚠️ Is it safe to climb an electric pole? (a) safe (b) not safe
7. 7.True or false: to use a cable with cuts is safe. (a) False (b) True
8. 8.⚠️ Which power source should children use for electronics projects? (a) an inverter socket (b) a mains extension board (c) a small battery pack (d) a wall socket
9. 9.True or false: to climb an electric pole is not safe. (a) False (b) True
10. 10.⚠️ Is it safe to keep drinks far away? (a) not safe (b) safe
11. 11.⚠️ Is it safe to take cells out after use? (a) not safe (b) safe
12. 12.True or false: to fly a kite near wires is not safe. (a) False (b) True
13. 13.True or false: to use mains for a project is safe. (a) False (b) True
14. 14.🔍 Which is the odd one out? (a) touch a switch when wet (b) open a phone charger (c) use small battery cells (d) touch a fallen wire
15. 15.⚠️ Why must we never touch switches with wet hands? (a) it spoils the paint (b) it is just untidy (c) water carries current (d) water makes it cold
16. 16.🔍 Which is the odd one out? (a) touch a switch when wet (b) use small battery cells (c) stop if a part gets hot (d) keep drinks far away
17. 17.Which of these is not safe? (a) use mains for a project (b) stop if a part gets hot (c) use small battery cells (d) fly kites in open fields
18. 18.True or false: to stay away from pylons is safe. (a) True (b) False
19. 19.True or false: to dry your hands first is safe. (a) False (b) True
20. 20.🔍 Which is the odd one out? (a) use small battery cells (b) stop if a part gets hot (c) dry your hands first (d) open a phone charger
21. 21.🔍 Which is the odd one out? (a) open a phone charger (b) poke things in a socket (c) fly kites in open fields (d) fly a kite near wires
22. 22.⚠️ Is it safe to use a cable with cuts? (a) safe (b) not safe
23. 23.⚠️ Is it safe to dry your hands first? (a) safe (b) not safe
24. 24.True or false: to take cells out after use is not safe. (a) True (b) False
25. 25.🔍 Which is the odd one out? (a) keep drinks far away (b) stop if a part gets hot (c) touch a fallen wire (d) build with an adult near
26. 26.🔍 Which is the odd one out? (a) touch a switch when wet (b) poke things in a socket (c) build with an adult near (d) use a cable with cuts
27. 27.⚠️ Is it safe to use mains for a project? (a) not safe (b) safe
28. 28.Which of these is safe? (a) dry your hands first (b) use mains for a project (c) fly a kite near wires (d) throw cells in a fire
29. 29.🔍 Which is the odd one out? (a) fly a kite near wires (b) throw cells in a fire (c) use mains for a project (d) keep drinks far away
30. 30.⚠️ Is it safe to build with an adult near? (a) not safe (b) safe
31. 31.True or false: to build with an adult near is safe. (a) True (b) False
32. 32.⚠️ Is it safe to fly a kite near wires? (a) not safe (b) safe
33. 33.⚠️ Is it safe to stop if a part gets hot? (a) safe (b) not safe
34. 34.True or false: to take cells out after use is safe. (a) False (b) True
35. 35.⚠️ Is it safe to stay away from pylons? (a) safe (b) not safe
36. 36.⚠️ Who should be with you when you build a circuit? (a) a stranger online (b) nobody (c) a younger child (d) a trusted adult
37. 37.Which of these is not safe? (a) use small battery cells (b) dry your hands first (c) throw cells in a fire (d) keep drinks far away
38. 38.⚠️ About how many volts do home sockets in India supply? (a) 230 V (b) 12 V (c) 1.5 V (d) 9 V
39. 39.True or false: to dry your hands first is not safe. (a) False (b) True
40. 40.Which of these is not safe? (a) stay away from pylons (b) touch a switch when wet (c) keep drinks far away (d) take cells out after use

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