Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 11 · 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.🏋️ A smooth ramp is 5 m long and rises 1 m. What effort pushes a 750 N box up it, in newtons? (ideal ramp, no friction)
2. 2.True or false: a crane lifting cable is in compression (pushed). (a) True (b) False
3. 3.🌉 Which bridge type can cross the widest gap in one span? (a) log bridge (b) suspension bridge (c) beam bridge (d) arch bridge
4. 4.Which of these is made by engineers? (a) a satellite (b) a cloud (c) a waterfall (d) a rainbow
5. 5.📋 Constraint: the tower must be no taller than 30 cm. The team’s tower is 26 cm tall. Is it within the constraint? (a) Yes (b) No
6. 6.True or false: to guess, do not measure is good testing. (a) True (b) False
7. 7.🤝 In a design team, who puts the model together? (a) recorder (b) tester (c) builder (d) team leader
8. 8.🛞 Which surface gives the MOST friction to a sliding block? (a) sandpaper (b) ice (c) polished marble (d) glass
9. 9.True or false: a fishing rod is a class 1 lever (fulcrum in the middle). (a) False (b) True
10. 10.True or false: a chemical engineer refines crude oil. (a) True (b) False
11. 11.🛞 Is friction helpful or a problem here: striking a matchstick? (a) helpful (b) a problem
12. 12.What does the recorder do? (a) tracks what is used up (b) checks the goals are met (c) runs the tests (d) writes down results
13. 13.♻️ Is wind a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
14. 14.♻️ Which is the BEST order to think about waste? (a) burn, bury, forget (b) reduce, reuse, recycle (c) recycle, reuse, reduce (d) reuse, recycle, reduce
15. 15.🌉 In a stone arch bridge, the stones are in … (a) tension (b) no force (c) compression (d) friction
16. 16.🛞 Friction acts … (a) only on ice (b) only upwards (c) against the motion (d) with the motion
17. 17.🪝 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
18. 18.⚖️ A seesaw balances. Asha (? N) sits 1 m from the pivot on one side; Zoya (120 N) sits 1 m from the pivot on the other side. What is the missing weight in newtons?
19. 19.True or false: a movable pulley only changes direction. (a) True (b) False
20. 20.🤝 Is it good or poor teamwork to give kind feedback? (a) poor teamwork (b) good teamwork
21. 21.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
22. 22.True or false: “keep ice for 1 hour” is a constraint (a limit). (a) False (b) True
23. 23.⚖️ Which class of lever is a pair of scissors? (a) class 3 (b) class 2 (c) class 1
24. 24.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “read the challenge rules”? (a) read the challenge rules (b) load it with coins
25. 25.🔧 Which tool would you use to tighten a nut? (a) a spirit level (b) a saw (c) a spanner (d) a tape measure
26. 26.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: sandpaper 13 N, a glass sheet 2 N, a wooden plank 5 N, a carpet 9 N. Which surface gave the least friction? (a) sandpaper (b) a wooden plank (c) a glass sheet (d) a carpet
27. 27.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “load it with coins”? (a) load it with coins (b) read the challenge rules
28. 28.⚖️ A seesaw balances. Asha (? N) sits 4 m from the pivot on one side; Arjun (800 N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?
29. 29.🧱 Which property matters most for an oven glove? (a) waterproof (b) flexible (c) heat insulator (d) transparent
30. 30.🔍 Which is the odd one out? (a) using a light roof (b) raising heavy tanks high (c) leaving out steel bars (d) using a heavy roof
31. 31.🪝 A well winch has a handle (wheel) of radius 10 cm turning an axle of radius 2 cm. What is its mechanical advantage (MA)?
32. 32.♻️ A school bench is made from 200 recycled plastic bottles. How many benches can be made from 2200 bottles?
33. 33.🏋️ A smooth ramp is 3 m long and rises 1 m. What effort pushes a 2400 N box up it, in newtons? (ideal ramp, no friction)
34. 34.🔍 Which is the odd one out? (a) a river (b) a lift (c) a bridge (d) a ceiling fan
35. 35.Which of these needs a waterproof material? (a) a magnifier lens (b) a spectacle lens (c) a switch contact (d) a water tank
36. 36.🌉 A beam bridge 500 m long is split by piers into 10 equal spans. How long is each span, in metres?
37. 37.🪢 Tension or compression: a pillar under a roof? (a) compression (b) tension
38. 38.⚖️ Turning effect = force × … (a) distance from fulcrum (b) mass of fulcrum (c) colour of bar (d) time taken
39. 39.Which of these is made by engineers? (a) a banyan tree (b) a volcano (c) a railway track (d) a mountain
40. 40.True or false: a tall bridge tower is in compression (pushed). (a) False (b) True

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