Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 968 · 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.📋 For a model bridge challenge, is “keep ice for 1 hour” a constraint or a criterion? (a) a constraint (b) a criterion
2. 2.True or false: a pillar under a roof is in tension (pulled). (a) True (b) False
3. 3.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
4. 4.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
5. 5.Which of these is an arch bridge? (a) a curve under the deck (b) a rope bridge in hills (c) deck hangs from cables (d) the longest spans of all
6. 6.True or false: to brainstorm many ideas is the Plan step. (a) False (b) True
7. 7.Which of these is reduce (use less)? (a) refill a water bottle (b) turn plastic into tiles (c) give old books away (d) carry a cloth bag
8. 8.True or false: to play near a moving drill is safe. (a) True (b) False
9. 9.True or false: a volcano is found in nature. (a) True (b) False
10. 10.📐 A model car is drawn so that 1 cm stands for 10 cm. The car is 12 cm long in the drawing. How long is the real car, in centimetres?
11. 11.📐 On a plan, 1 cm stands for 2 m. A wall is 14 cm long on the plan. How long is the real wall, in metres?
12. 12.What does the materials manager do? (a) cuts and joins parts (b) tracks what is used up (c) runs the tests (d) keeps the team on track
13. 13.True or false: a mobile phone is found in nature. (a) True (b) False
14. 14.True or false: a crane hook block is a wheel and axle. (a) False (b) True
15. 15.⚖️ A lever bar balances. The load is ? N at 10 cm from the fulcrum. The effort is 30 N at 40 cm from the fulcrum on the other side. What is the missing force in newtons?
16. 16.🏋️ A force of 390 N pushes a cart 2 m along the floor. How much work is done, in joules?
17. 17.🔄 In which step do engineers draw a labelled diagram? (a) Improve (b) Plan (c) Ask (d) Test
18. 18.True or false: a mechanical engineer designs car engines. (a) False (b) True
19. 19.📋 Criterion: the model bridge must hold at least 500 g. In the test it held 500 g. Does it meet the criterion? (a) No (b) Yes
20. 20.🪝 A wheel and axle is a big wheel fixed to … (a) a loose rope (b) a sharp wedge (c) a smaller rod (axle) (d) a flat ramp
21. 21.🪝 A winch has a wheel of radius 7 cm and an axle of radius 1 cm. What effort on the wheel lifts a 1190 N bucket on the axle, in newtons? (ideal)
22. 22.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
23. 23.🤝 Is it good or poor teamwork to laugh at ideas? (a) good teamwork (b) poor teamwork
24. 24.🪝 What does a single fixed pulley change? (a) the colour of rope (b) gravity (c) the direction of pull (d) the size of the load
25. 25.🔢 To follow the engineering design process, which comes first: “Plan” or “Improve”? (a) Improve (b) Plan
26. 26.🔺 A flat frame has 8 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
27. 27.True or false: an aerospace engineer designs power lines. (a) True (b) False
28. 28.⚖️ To lift a heavy rock with a crowbar more easily, push … (a) near the fulcrum (b) on the fulcrum (c) far from the fulcrum (d) on the rock
29. 29.Which of these is found in nature? (a) a bridge (b) a dam (c) a waterfall (d) a lift
30. 30.🌉 A beam bridge is 240 m long. Piers split it into equal spans of 30 m. How many spans are there?
31. 31.🔍 Which is the odd one out? (a) a wood screw (b) the tip of a nail (c) a knife edge (d) an axe blade
32. 32.🔢 To follow the engineering design process, which comes first: “Improve” or “Create”? (a) Improve (b) Create
33. 33.True or false: to laugh at ideas is good teamwork. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) a bridge (b) a satellite (c) a river (d) a mobile phone
35. 35.True or false: natural gas is a renewable energy source. (a) True (b) False
36. 36.🦺 How should you carry scissors? (a) by the blades (b) points down, closed (c) while running (d) points up, open
37. 37.🧪 In a fair test, how many things do you change at a time? (a) none (b) one (c) two (d) all of them
38. 38.📐 On a plan, 1 cm stands for 2 m. A wall is 6 cm long on the plan. How long is the real wall, in metres?
39. 39.🧱 Which property matters most for a raincoat? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
40. 40.True or false: a bicycle is found in nature. (a) False (b) True

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