Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 473 · 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 lever bar balances. The load is 60 N at ? cm from the fulcrum. The effort is 80 N at 30 cm from the fulcrum on the other side. What is the missing distance in centimetres?
2. 2.True or false: “use at most 20 straws” is a constraint (a limit). (a) False (b) True
3. 3.📋 Your team’s budget is ₹41. You must buy one roll of tape for ₹20. Straws cost ₹3 each. What is the greatest number of straws you can buy?
4. 4.🔍 Which is the odd one out? (a) using flexible joints (b) using a heavy roof (c) building tall and narrow (d) leaving out steel bars
5. 5.True or false: a table leg is in compression (pushed). (a) False (b) True
6. 6.Which of these happens in the Create step? (a) find the limits (b) measure its performance (c) make a prototype (d) ask who will use it
7. 7.Which job does a mechanical engineer do? (a) designs a flyover (b) runs a fertiliser plant (c) designs a metro tunnel (d) designs factory machines
8. 8.📋 Your team’s budget is ₹92. You must buy one roll of tape for ₹5. Straws cost ₹3 each. What is the greatest number of straws you can buy?
9. 9.🧑‍🔧 Which kind of engineer designs car engines? (a) civil (b) biomedical (c) mechanical (d) aerospace
10. 10.🔍 Which is the odd one out? (a) carry scissors closed (b) put tools back after use (c) play near a moving drill (d) clamp wood before sawing
11. 11.📋 For a model bridge challenge, is “use at most 20 straws” a constraint or a criterion? (a) a criterion (b) a constraint
12. 12.🔢 To follow the engineering design process, which is the LAST step? (a) Create (b) Test (c) Imagine (d) Improve
13. 13.True or false: a lift is found in nature. (a) True (b) False
14. 14.🏋️ A smooth ramp is 6 m long and rises 2 m. What effort pushes a 2100 N box up it, in newtons? (ideal ramp, no friction)
15. 15.True or false: a road up a hill is an inclined plane. (a) True (b) False
16. 16.🪢 A concrete slab weighing 21000 N rests evenly on 7 identical pillars. What compression force does each pillar carry, in newtons?
17. 17.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
18. 18.📐 Why do engineers use scale drawings? (a) to save ink only (b) big things fit on paper (c) to make them pretty (d) to hide sizes
19. 19.🛞 Is friction helpful or a problem here: gripping a cricket bat? (a) helpful (b) a problem
20. 20.Which of these needs a waterproof material? (a) a car windscreen (b) a yoga mat (c) a spectacle lens (d) a boat hull
21. 21.🌉 A beam bridge is 40 m long. Piers split it into equal spans of 10 m. How many spans are there?
22. 22.💪 Which can a force NOT do? (a) stop it moving (b) start it moving (c) change its colour (d) change its shape
23. 23.🔄 Is the engineering design process done only once? (a) yes, only once (b) only for big jobs (c) only on Sundays (d) no, it repeats
24. 24.🔺 Which strong shape does a lintel over a door use? (a) beam (b) arch (c) dome (d) triangle
25. 25.🪢 A stage stands on 4 identical legs and each leg is squeezed with 925 N. What is the total load on the stage, in newtons?
26. 26.True or false: to agree before changing is poor teamwork. (a) False (b) True
27. 27.🏋️ A force of 470 N pushes a cart 1 m along the floor. How much work is done, in joules?
28. 28.🪢 A concrete slab weighing 14000 N rests evenly on 5 identical pillars. What compression force does each pillar carry, in newtons?
29. 29.🤝 Is it good or poor teamwork to ignore the team plan? (a) poor teamwork (b) good teamwork
30. 30.📋 Your team’s budget is ₹143. You must buy one roll of tape for ₹15. Straws cost ₹5 each. What is the greatest number of straws you can buy?
31. 31.📐 A model car is drawn so that 1 cm stands for 40 cm. The car is 5 cm long in the drawing. How long is the real car, in centimetres?
32. 32.True or false: a computer engineer designs school networks. (a) True (b) False
33. 33.🔍 Which is the odd one out? (a) a bottle cap (b) a wood screw (c) a jar lid (d) a crane hook block
34. 34.📐 On a plan, 1 cm stands for 10 m. A wall is 14 cm long on the plan. How long is the real wall, in metres?
35. 35.🤝 In a design team, who runs the tests? (a) team leader (b) tester (c) materials manager (d) builder
36. 36.🦺 In the workshop, is it safe to wear safety goggles? (a) safe (b) not safe
37. 37.🧪 What is a prototype? (a) a sales poster (b) an early test model (c) the final product (d) a broken part
38. 38.True or false: wind is a renewable energy source. (a) True (b) False
39. 39.What does the builder do? (a) shares out the jobs (b) cuts and joins parts (c) keeps the team on track (d) collects the supplies
40. 40.🔺 A flat frame has 6 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?

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