Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 644 · 40 questions

Engineer's tip (Find the topic, use the idea): Find the topic: design process, force, machine, lever, structure, material, bridge or scale. Use that lesson’s rule — what is in the middle, load × distance = effort × distance, work = force × distance, real = drawing × scale. Write the calculation before you answer.

1. 1.True or false: a knife edge is a wedge. (a) True (b) False
2. 2.🔍 Which is the odd one out? (a) a crane hook block (b) a flagpole rope wheel (c) a wheelchair ramp (d) a window blind cord
3. 3.🪢 Tension or compression: a tow rope on a car? (a) tension (b) compression
4. 4.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
5. 5.💪 In a tug of war, one team pulls right with 10 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
6. 6.True or false: “use at most 20 straws” is a constraint (a limit). (a) False (b) True
7. 7.⚖️ Which class of lever is a pair of scissors? (a) class 2 (b) class 1 (c) class 3
8. 8.⚖️ A lever bar balances. The load is ? N at 40 cm from the fulcrum. The effort is 200 N at 60 cm from the fulcrum on the other side. What is the missing force in newtons?
9. 9.🔍 Which is the odd one out? (a) keep ice for 1 hour (b) hold up 500 g (c) roll at least 2 metres (d) be under 30 cm tall
10. 10.🪝 A pulley system has 1 rope section holding up the load. To lift the load by 2 m, how many metres of rope must you pull?
11. 11.🧪 Three prototype bridges were tested with the same method. Design A held 120 g, design B held 220 g and design C held 170 g. Which design was the strongest? (a) design C (b) design A (c) design B
12. 12.♻️ Is flowing river water a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
13. 13.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
14. 14.🪢 A beam rests on two supports and is pressed down in the middle. Its bottom edge is … (a) twisted (b) not affected (c) squeezed (compression) (d) stretched (tension)
15. 15.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) sketch three ideas (b) build it with straws (c) load it with coins (d) read the challenge rules
16. 16.Which of these is recycle (make new things)? (a) reuse gift paper (b) switch off unused lights (c) plant in old tyres (d) turn plastic into tiles
17. 17.Which of these needs a heat insulator? (a) a car seat belt (b) an oven glove (c) a car windscreen (d) a boat hull
18. 18.Which of these needs a transparent material? (a) the core of a wire (b) a plug pin (c) a car windscreen (d) a cooking pot handle
19. 19.🔍 Which is the odd one out? (a) a bottle cap (b) a screw jack (c) a wood screw (d) a flagpole rope wheel
20. 20.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) on a thin pole (c) low down (d) hanging outside
21. 21.🔢 To follow the engineering design process, what comes right after “Create”? (a) Test (b) Improve (c) Imagine (d) Ask
22. 22.🏋️ In which unit is work measured? (a) joule (J) (b) newton (N) (c) watt hour (d) metre (m)
23. 23.⚖️ A lever bar balances. The load is 210 N at 10 cm from the fulcrum. The effort is 30 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
24. 24.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
25. 25.🛞 Is friction helpful or a problem here: gripping a cricket bat? (a) a problem (b) helpful
26. 26.True or false: to leave tools on the floor is not safe. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) spend at most ₹100 (b) use only paper and tape (c) be under 30 cm tall (d) hold up 500 g
28. 28.Which of these uses a beam? (a) a bicycle frame (b) a plank over a drain (c) a curved stone doorway (d) an electric pylon
29. 29.🔺 Which shape keeps its shape best when its corners are pinned? (a) triangle (b) hexagon (c) rectangle (d) square
30. 30.Which job does an electrical engineer do? (a) designs a metro tunnel (b) designs electric motors (c) designs a gearbox (d) plans a dam
31. 31.📋 Constraint: the tower must be no taller than 30 cm. The team’s tower is 32 cm tall. Is it within the constraint? (a) No (b) Yes
32. 32.🔧 Which tool would you use to measure a long length? (a) a hand drill (b) a tape measure (c) a saw (d) sandpaper
33. 33.📐 On a plan, 1 cm stands for 10 m. A wall is 14 cm long on the plan. How long is the real wall, in metres?
34. 34.True or false: a biomedical engineer designs bicycle gears. (a) False (b) True
35. 35.🌉 Which bridge type: “the longest spans of all”? (a) beam bridge (b) arch bridge (c) suspension bridge
36. 36.True or false: a wheelbarrow is a class 2 lever (load in the middle). (a) False (b) True
37. 37.♻️ A family used to throw away 4 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 2 weeks?
38. 38.Which of these is reuse (use again)? (a) carry a cloth bag (b) print on both sides (c) pulp old paper (d) use a jar as a pen stand
39. 39.What does the materials manager do? (a) collects the supplies (b) puts the model together (c) writes down results (d) keeps the team on track
40. 40.True or false: “deck hangs from cables” is an arch bridge. (a) False (b) True

Free engineering lessons, practice and worksheets at talentjr.in/engineering-for-kids