Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 43 · 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.🪢 Tension or compression: a hanging lamp chain? (a) tension (b) compression
2. 2.🤝 Is it good or poor teamwork to blame others for faults? (a) good teamwork (b) poor teamwork
3. 3.⚙️ How many simple machines are there in the usual list? (a) 3 (b) 10 (c) 6 (d) 12
4. 4.True or false: a slab over a canal uses a beam. (a) True (b) False
5. 5.True or false: to build the model is the Create step. (a) False (b) True
6. 6.⚖️ A lever bar balances. The load is 900 N at 50 cm from the fulcrum. The effort is 450 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
7. 7.🪝 A well winch has a handle (wheel) of radius 6 cm turning an axle of radius 3 cm. What is its mechanical advantage (MA)?
8. 8.🔺 One side of a straw bridge is a row of 7 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
9. 9.🔺 Which strong shape does a curved stone doorway use? (a) beam (b) triangle (c) dome (d) arch
10. 10.📐 On a plan, 1 cm stands for 10 m. A real bridge is 140 m long. How long is it on the plan, in centimetres?
11. 11.🦺 What protects your eyes when sawing or drilling? (a) a cap (b) sunglasses (c) nothing (d) safety goggles
12. 12.True or false: to agree before changing is good teamwork. (a) False (b) True
13. 13.True or false: building tall and narrow makes a building safer in earthquakes. (a) False (b) True
14. 14.True or false: a dam helps people make power from sunlight. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) lift a cup of water (b) use only paper and tape (c) hold up 500 g (d) carry 10 coins
16. 16.⚖️ Along a straight bar, measured from the left end, the effort is at 70 cm, the fulcrum at 20 cm and the load at 50 cm. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
17. 17.🏋️ A longer ramp to the same height needs … (a) more effort (b) no effort (c) the same effort (d) less effort
18. 18.📋 Criterion: the model bridge must hold at least 800 g. In the test it held 750 g. Does it meet the criterion? (a) Yes (b) No
19. 19.⚙️ Which simple machine is a flagpole rope wheel? (a) lever (b) pulley (c) inclined plane (d) wedge
20. 20.True or false: a computer engineer plans a power grid. (a) True (b) False
21. 21.⚖️ Which class of lever is a pair of scissors? (a) class 1 (b) class 3 (c) class 2
22. 22.🔺 A beam bends under a load. Its top side is … (a) stretched (tension) (b) not affected (c) floating (d) squeezed (compression)
23. 23.True or false: an aerospace engineer designs school networks. (a) False (b) True
24. 24.🦺 Who should use hot glue guns and power tools in a kids’ project? (a) an adult (b) the youngest child (c) a stranger (d) any child alone
25. 25.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) glass (d) steel
26. 26.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) sketch three ideas (b) build it with straws (c) choose and draw one (d) load it with coins
27. 27.🔍 Which is the odd one out? (a) be under 30 cm tall (b) lift a cup of water (c) keep ice for 1 hour (d) float for 1 minute
28. 28.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 1 N, a glass sheet 4 N, a wooden plank 5 N, a carpet 7 N. Which surface gave the most friction? (a) a glass sheet (b) a wooden plank (c) a carpet (d) ice
29. 29.📋 Your team’s budget is ₹30. You must buy one roll of tape for ₹10. Straws cost ₹3 each. What is the greatest number of straws you can buy?
30. 30.📐 On a plan, 1 cm stands for 10 m. A wall is 13 cm long on the plan. How long is the real wall, in metres?
31. 31.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
32. 32.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) glass (d) steel
33. 33.🔍 Which is the odd one out? (a) keeping a simple shape (b) using flexible joints (c) making brittle joints (d) adding cross bracing
34. 34.🤝 A team of 2 shares 6 equal jobs fairly. Each job takes 3 minutes. How many minutes does each person work?
35. 35.Which of these is reduce (use less)? (a) fix a dripping tap (b) pulp old paper (c) melt glass into new jars (d) turn plastic into tiles
36. 36.🪝 Fixed or movable pulley: which one stays in one place? (a) a movable pulley (b) a fixed pulley
37. 37.⚖️ On a seesaw, a heavier child should sit … (a) farther from the pivot (b) anywhere (c) on the pivot (d) closer to the pivot
38. 38.Which of these is a beam bridge? (a) a log across a stream (b) cables tied down at ends (c) tall towers hold cables (d) the longest spans of all
39. 39.📐 A beam is 890 cm long. How long is it in metres? =
40. 40.True or false: an aerospace engineer plans a power grid. (a) True (b) False

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