Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 346 · 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: to give kind feedback is poor teamwork. (a) True (b) False
2. 2.🧪 A paper bridge was tested three times. It held 260 g, 170 g and 80 g. What is the mean (average) load it held, in grams?
3. 3.⚙️ Which simple machine is a round doorknob? (a) wedge (b) pulley (c) wheel and axle (d) inclined plane
4. 4.🔄 Is the engineering design process done only once? (a) only for big jobs (b) no, it repeats (c) yes, only once (d) only on Sundays
5. 5.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
6. 6.🤝 How do engineers share a design with others? (a) only talking fast (b) clear labelled sketches (c) no drawings at all (d) secret notes
7. 7.🪝 A pulley system has 3 rope sections holding up the load. To lift the load by 4 m, how many metres of rope must you pull?
8. 8.📐 A beam is 960 cm long. How long is it in metres? =
9. 9.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) hanging outside (c) on a thin pole (d) low down
10. 10.True or false: a wet tiled floor gives less friction. (a) True (b) False
11. 11.🔍 Which is the odd one out? (a) plastic (b) brass (c) clay pottery (d) rubber
12. 12.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
13. 13.True or false: to own up to a mistake is good teamwork. (a) True (b) False
14. 14.📋 Your team’s budget is ₹60. You must buy one roll of tape for ₹5. Straws cost ₹2 each. What is the greatest number of straws you can buy?
15. 15.True or false: a box pushed on carpet gives less friction. (a) False (b) True
16. 16.🔍 Which is the odd one out? (a) copper (b) brass (c) aluminium (d) rubber
17. 17.⚖️ Going along a lever from one end to the other, the order is: effort, fulcrum, load. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
18. 18.⚖️ Which class of lever is your forearm? (a) class 3 (b) class 1 (c) class 2
19. 19.Which of these is made by engineers? (a) a volcano (b) a bridge (c) a river (d) a seashell
20. 20.🔄 After testing, a design does not work well. What comes next? (a) Imagine (b) give up (c) Ask (d) Improve
21. 21.🏋️ A force of 70 N did 350 J of work. How many metres did the object move?
22. 22.🌉 A beam bridge 480 m long is split by piers into 12 equal spans. How long is each span, in metres?
23. 23.⚖️ A lever bar balances. The load is 900 N at 10 cm from the fulcrum. The effort is ? N at 90 cm from the fulcrum on the other side. What is the missing force in newtons?
24. 24.🌉 In a suspension bridge, the main cables are in … (a) no force (b) compression (c) friction (d) tension
25. 25.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 180 g. How many more grams did it hold?
26. 26.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) cardboard (d) paper
27. 27.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a glass sheet 1 N, a wooden plank 2 N, a carpet 6 N, sandpaper 10 N. How many newtons more were needed on sandpaper than on a glass sheet?
28. 28.🌉 Which bridge type: “a curve under the deck”? (a) arch bridge (b) beam bridge (c) suspension bridge
29. 29.🛠️ Is a ceiling fan made by engineers or found in nature? (a) made by engineers (b) found in nature
30. 30.🌉 Which bridge type can cross the widest gap in one span? (a) beam bridge (b) suspension bridge (c) log bridge (d) arch bridge
31. 31.Which of these uses a beam? (a) a curved stone doorway (b) a plank over a drain (c) an electric pylon (d) a roof truss
32. 32.⚖️ Along a straight bar, measured from the left end, the effort is at 30 cm, the fulcrum at 40 cm and the load at 70 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
33. 33.🪝 A winch has a wheel of radius 16 cm and an axle of radius 4 cm. What effort on the wheel lifts a 560 N bucket on the axle, in newtons? (ideal)
34. 34.🌉 What holds up a long beam bridge in the middle? (a) cables only (b) piers (c) balloons (d) nothing
35. 35.🔍 Which is the odd one out? (a) building tall and narrow (b) raising heavy tanks high (c) making brittle joints (d) having a wide base
36. 36.True or false: “spend at most ₹100” is a constraint (a limit). (a) False (b) True
37. 37.True or false: “deck hangs from cables” is a beam bridge. (a) False (b) True
38. 38.Which of these happens in the Create step? (a) check it against goals (b) dream up possible fixes (c) fix the weak part (d) build the model
39. 39.🧱 Which material is best for a window pane? (a) steel (b) wood (c) glass (d) brick
40. 40.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 30 cm wide base, tower B is 20 cm tall on a 10 cm base and tower C is 120 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C

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