Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 918 · 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 crane arm use? (a) dome (b) triangle (c) arch (d) beam
2. 2.Which of these needs a heat insulator? (a) a cooking pot handle (b) a switch contact (c) a skipping rope (d) an umbrella cover
3. 3.📐 A model car is drawn so that 1 cm stands for 40 cm. The car is 14 cm long in the drawing. How long is the real car, in centimetres?
4. 4.♻️ Which is the BEST order to think about waste? (a) reuse, recycle, reduce (b) recycle, reuse, reduce (c) reduce, reuse, recycle (d) burn, bury, forget
5. 5.🔄 Which design-process step is it to list the materials? (a) Improve (b) Plan (c) Create (d) Ask
6. 6.📐 Why do engineers use scale drawings? (a) to hide sizes (b) to make them pretty (c) to save ink only (d) big things fit on paper
7. 7.🧪 What is a prototype? (a) the final product (b) an early test model (c) a broken part (d) a sales poster
8. 8.True or false: to check a shelf is level, use a spanner. (a) True (b) False
9. 9.True or false: a squeezed spring is in tension (pulled). (a) True (b) False
10. 10.🔍 Which is the odd one out? (a) the tip of a nail (b) an axe blade (c) a door stopper (d) a flagpole rope wheel
11. 11.🧱 Which property matters most for an umbrella cover? (a) transparent (b) heat insulator (c) flexible (d) waterproof
12. 12.🔍 Which is the odd one out? (a) change only one thing (b) record every result (c) measure the same way (d) guess, do not measure
13. 13.⚖️ A lever bar balances. The load is 90 N at 20 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?
14. 14.🏋️ A machine lifts a load of 1020 N when you push with 170 N. What is its mechanical advantage (MA)?
15. 15.📋 Criterion: the model bridge must hold at least 300 g. In the test it held 250 g. Does it meet the criterion? (a) Yes (b) No
16. 16.Which job does a mechanical engineer do? (a) designs a paint factory (b) refines crude oil (c) designs artificial limbs (d) designs bicycle gears
17. 17.📐 On a plan, 1 cm stands for 2 m. A wall is 2 cm long on the plan. How long is the real wall, in metres?
18. 18.Which of these happens in the Test step? (a) find the limits (b) make a prototype (c) try it out (d) list the materials
19. 19.📐 On a plan, 1 cm stands for 10 m. A real bridge is 200 m long. How long is it on the plan, in centimetres?
20. 20.🔍 Which is the odd one out? (a) having a wide base (b) adding cross bracing (c) making brittle joints (d) adding steel to concrete
21. 21.Which job is sandpaper for? (a) grip and bend wire (b) check a shelf is level (c) measure a long length (d) smooth a rough edge
22. 22.📋 Constraint: the tower must be no taller than 40 cm. The team’s tower is 36 cm tall. Is it within the constraint? (a) No (b) Yes
23. 23.🧑‍🔧 Which kind of engineer refines crude oil? (a) computer (b) aerospace (c) chemical (d) electrical
24. 24.🦺 Who should use hot glue guns and power tools in a kids’ project? (a) a stranger (b) an adult (c) the youngest child (d) any child alone
25. 25.🔍 Which is the odd one out? (a) cut towards your hand (b) use a cracked tool (c) play near a moving drill (d) carry scissors closed
26. 26.Which of these is a beam bridge? (a) a curve under the deck (b) the simplest bridge (c) stones squeezed together (d) a rope bridge in hills
27. 27.🤝 Why do engineers work in teams? (a) to argue more (b) to finish nothing (c) to work alone (d) many skills and ideas
28. 28.True or false: “stones squeezed together” is a beam bridge. (a) True (b) False
29. 29.Which of these is reuse (use again)? (a) fix a dripping tap (b) buy less packaging (c) refill a water bottle (d) turn plastic into tiles
30. 30.📋 Criterion: the model bridge must hold at least 400 g. In the test it held 250 g. Does it meet the criterion? (a) No (b) Yes
31. 31.🌉 Which bridge type: “the longest spans of all”? (a) suspension bridge (b) beam bridge (c) arch bridge
32. 32.⚖️ Which class of lever is your forearm? (a) class 3 (b) class 1 (c) class 2
33. 33.🔺 Which shape keeps its shape best when its corners are pinned? (a) square (b) hexagon (c) triangle (d) rectangle
34. 34.🏋️ A smooth ramp is 15 m long and rises 3 m. What effort pushes a 1250 N box up it, in newtons? (ideal ramp, no friction)
35. 35.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) stacking loose bricks (c) adding steel to concrete (d) raising heavy tanks high
36. 36.🪝 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?
37. 37.True or false: to smooth a rough edge, use a hammer. (a) False (b) True
38. 38.🪝 A well winch has a handle (wheel) of radius 28 cm turning an axle of radius 4 cm. What is its mechanical advantage (MA)?
39. 39.🔍 Which is the odd one out? (a) test it only once (b) use a new load each time (c) guess, do not measure (d) record every result
40. 40.♻️ Reduce, reuse or recycle: melt cans into new cans? (a) reduce (b) reuse (c) recycle

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