Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 888 · 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.Which job is a saw for? (a) turn a screw (b) cut a wooden plank (c) check a shelf is level (d) tighten a nut
2. 2.🤝 A team plans for 40 minutes, builds for 20 minutes and then tests for 30 minutes, one after another. How many minutes is that in all?
3. 3.True or false: an aerospace engineer designs satellites. (a) True (b) False
4. 4.📋 Your team’s budget is ₹71. You must buy one roll of tape for ₹10. Straws cost ₹2 each. What is the greatest number of straws you can buy?
5. 5.Which of these is a beam bridge? (a) a curve under the deck (b) the longest spans of all (c) a flat deck on piers (d) a rope bridge in hills
6. 6.⚙️ Which simple machine is a wheelchair ramp? (a) wedge (b) screw (c) lever (d) inclined plane
7. 7.🔄 Which design-process step is it to redesign after testing? (a) Test (b) Improve (c) Ask (d) Plan
8. 8.🛠️ Is a bicycle made by engineers or found in nature? (a) found in nature (b) made by engineers
9. 9.💪 Which force is at work: an apple falls down? (a) gravity (b) magnetic force (c) friction (d) muscular force
10. 10.⚖️ A lever bar balances. The load is ? N at 40 cm from the fulcrum. The effort is 120 N at 70 cm from the fulcrum on the other side. What is the missing force in newtons?
11. 11.True or false: to record every result is poor testing. (a) False (b) True
12. 12.⚖️ A seesaw balances. Asha (100 N) sits ? m from the pivot on one side; Meena (100 N) sits 1 m from the pivot on the other side. What is the missing distance in metres?
13. 13.True or false: a bicycle frame uses an arch. (a) True (b) False
14. 14.🤝 In a design team, who keeps the team on track? (a) materials manager (b) tester (c) builder (d) team leader
15. 15.🧱 Which property matters most for a window pane? (a) waterproof (b) transparent (c) heat insulator (d) flexible
16. 16.📋 Your team’s budget is ₹64. You must buy one roll of tape for ₹5. Straws cost ₹4 each. What is the greatest number of straws you can buy?
17. 17.True or false: a rough doormat gives more friction. (a) False (b) True
18. 18.🦺 Who should use hot glue guns and power tools in a kids’ project? (a) a stranger (b) any child alone (c) an adult (d) the youngest child
19. 19.🧑‍🔧 Which branch of engineering works on aeroplanes and rockets? (a) computer (b) civil (c) aerospace (d) chemical
20. 20.🔍 Which is the odd one out? (a) a dam (b) a lift (c) a railway track (d) a seashell
21. 21.🧑‍🔧 Which kind of engineer keeps data safe online? (a) computer (b) electrical (c) civil (d) aerospace
22. 22.📋 Criterion: the model bridge must hold at least 700 g. In the test it held 550 g. Does it meet the criterion? (a) Yes (b) No
23. 23.🏋️ Can a simple machine reduce the work done? (a) only on Mondays (b) yes, always (c) yes, by half (d) no, work stays the same
24. 24.⚙️ A screw is really … (a) a ramp wrapped round (b) a tiny pulley (c) a kind of wheel (d) a bent lever
25. 25.📐 A model car is drawn so that 1 cm stands for 20 cm. The car is 11 cm long in the drawing. How long is the real car, in centimetres?
26. 26.True or false: a beam balance is a class 3 lever (effort in the middle). (a) True (b) False
27. 27.Which of these is a pulley? (a) a screw jack (b) a road up a hill (c) a wheelchair ramp (d) a window blind cord
28. 28.⚖️ Which class of lever is a bottle opener? (a) class 1 (b) class 2 (c) class 3
29. 29.🪢 Compression is a force that … (a) makes light (b) pushes or squeezes (c) cools things (d) pulls or stretches
30. 30.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) wood (d) copper
31. 31.🔺 A flat frame has 10 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
32. 32.Which of these happens in the Improve step? (a) pick the build order (b) try it out (c) fix the weak part (d) build the model
33. 33.Which of these needs a heat insulator? (a) a cooking pot handle (b) a car seat belt (c) a skipping rope (d) a water tank
34. 34.📐 On a plan, 1 cm stands for 20 m. A wall is 7 cm long on the plan. How long is the real wall, in metres?
35. 35.Which of these needs a transparent material? (a) a hair band (b) a magnifier lens (c) a switch contact (d) an umbrella cover
36. 36.🔍 Which is the odd one out? (a) fit on a school desk (b) stand in a fan breeze (c) finish in 40 minutes (d) be under 30 cm tall
37. 37.🪝 A wheel and axle is a big wheel fixed to … (a) a flat ramp (b) a smaller rod (axle) (c) a loose rope (d) a sharp wedge
38. 38.💪 Which force is at work: a thrown ball comes down? (a) gravity (b) muscular force (c) magnetic force (d) friction
39. 39.🏋️ A machine lifts a load of 400 N when you push with 200 N. What is its mechanical advantage (MA)?
40. 40.🧪 The first prototype held 270 g. After the team improved it, the new prototype held 390 g. How many more grams did it hold?

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