Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 459 · 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 strong shape does a fort gateway use? (a) arch (b) triangle (c) dome (d) beam
2. 2.🧪 A paper bridge was tested three times. It held 240 g, 140 g and 280 g. What is the mean (average) load it held, in grams?
3. 3.🦺 What protects your eyes when sawing or drilling? (a) sunglasses (b) safety goggles (c) nothing (d) a cap
4. 4.True or false: to laugh at ideas is good teamwork. (a) False (b) True
5. 5.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
6. 6.True or false: to try it out is the Improve step. (a) False (b) True
7. 7.📋 Your team’s budget is ₹66. You must buy one roll of tape for ₹5. Straws cost ₹2 each. What is the greatest number of straws you can buy?
8. 8.🪝 A load of 920 N hangs from a pulley system in which 4 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
9. 9.🏋️ A force of 460 N did 920 J of work. How many metres did the object move?
10. 10.True or false: a volcano is made by engineers. (a) False (b) True
11. 11.True or false: to pick the build order is the Imagine step. (a) True (b) False
12. 12.🧑‍🔧 Which kind of engineer plans a space mission? (a) chemical (b) computer (c) mechanical (d) aerospace
13. 13.♻️ Is wind a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
14. 14.🪝 Fixed or movable pulley: which one only changes direction? (a) a movable pulley (b) a fixed pulley
15. 15.⚙️ Which simple machine is a bottle opener? (a) lever (b) wheel and axle (c) pulley (d) inclined plane
16. 16.Which of these is caused by muscular force? (a) a compass needle turns (b) pedalling a cycle (c) brakes stop a bicycle (d) shoes grip the floor
17. 17.Which of these uses an arch? (a) a truss bridge side (b) a curved stone doorway (c) a roof truss (d) a bicycle frame
18. 18.🔺 Which strong shape does a truss bridge side use? (a) beam (b) arch (c) triangle (d) dome
19. 19.♻️ Reduce, reuse or recycle: buy less packaging? (a) recycle (b) reduce (c) reuse
20. 20.🪢 Compression is a force that … (a) pulls or stretches (b) cools things (c) pushes or squeezes (d) makes light
21. 21.Which of these happens in the Ask step? (a) pick the build order (b) fix the weak part (c) define the problem (d) make it better, retest
22. 22.📋 Criterion: the model bridge must hold at least 800 g. In the test it held 650 g. Does it meet the criterion? (a) No (b) Yes
23. 23.📋 Constraint: the tower must be no taller than 70 cm. The team’s tower is 72 cm tall. Is it within the constraint? (a) Yes (b) No
24. 24.🌉 What holds up a long beam bridge in the middle? (a) nothing (b) balloons (c) piers (d) cables only
25. 25.Which of these is a beam bridge? (a) the longest spans of all (b) a flat deck on piers (c) a curve under the deck (d) stones squeezed together
26. 26.True or false: “use only paper and tape” is a constraint (a limit). (a) False (b) True
27. 27.🔺 Which strong shape does a shelf on two brackets use? (a) triangle (b) arch (c) beam (d) dome
28. 28.🏋️ A 14 kg box is lifted straight up by 1 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
29. 29.⚖️ Which class of lever is a pair of scissors? (a) class 1 (b) class 2 (c) class 3
30. 30.🔺 A frame shaped like a triangle is made of straws joined by loose pins, with 0 corner-to-corner braces. Is it rigid or wobbly? (a) wobbly (b) rigid
31. 31.🧑‍🔧 Which kind of engineer refines crude oil? (a) chemical (b) aerospace (c) electrical (d) mechanical
32. 32.🪝 A pulley system has 2 rope sections holding up the load. To lift the load by 8 m, how many metres of rope must you pull?
33. 33.True or false: to talk over others is good teamwork. (a) True (b) False
34. 34.True or false: a computer engineer designs school networks. (a) False (b) True
35. 35.🛠️ Is a water filter made by engineers or found in nature? (a) found in nature (b) made by engineers
36. 36.Which of these is caused by muscular force? (a) an apple falls down (b) a river flows downhill (c) squeezing a lemon (d) a thrown ball comes down
37. 37.🔍 Which is the odd one out? (a) adding cross bracing (b) fitting rubber base pads (c) adding steel to concrete (d) stacking loose bricks
38. 38.🔺 A flat frame has 4 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
39. 39.Which of these needs a heat insulator? (a) a plug pin (b) a cooking pot handle (c) a skipping rope (d) a car seat belt
40. 40.True or false: to try it out is the Ask step. (a) False (b) True

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