Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 151 · 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.🛞 Is friction helpful or a problem here: shoe soles wearing out? (a) a problem (b) helpful
2. 2.🔍 Which is the odd one out? (a) wear safety goggles (b) cut away from your body (c) carry scissors closed (d) leave tools on the floor
3. 3.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) civil (b) biomedical (c) computer (d) chemical
4. 4.True or false: a slab over a canal uses a beam. (a) False (b) True
5. 5.⚖️ Going along a lever from one end to the other, the order is: effort, load, fulcrum. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
6. 6.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “strengthen the weak part”? (a) read the challenge rules (b) strengthen the weak part
7. 7.True or false: “pushes out on its ends” is an arch bridge. (a) True (b) False
8. 8.True or false: to clamp wood before sawing is safe. (a) False (b) True
9. 9.What does the builder do? (a) shares out the jobs (b) checks the goals are met (c) runs the tests (d) cuts and joins parts
10. 10.True or false: a waterfall is made by engineers. (a) True (b) False
11. 11.🛠️ Which of these is a problem an engineer could solve? (a) a road that floods (b) a lost cricket match (c) a sad song (d) a boring story
12. 12.⚖️ A lever bar balances. The load is 140 N at 20 cm from the fulcrum. The effort is 140 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
13. 13.True or false: a seesaw is a class 3 lever (effort in the middle). (a) True (b) False
14. 14.⚖️ Along a straight bar, measured from the left end, the effort is at 30 cm, the fulcrum at 20 cm and the load at 50 cm. Which class of lever is it? (a) class 2 (b) class 3 (c) class 1
15. 15.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) stacking loose bricks (c) using flexible joints (d) using a light roof
16. 16.🤝 A team of 5 shares 15 equal jobs fairly. Each job takes 5 minutes. How many minutes does each person work?
17. 17.True or false: to laugh at ideas is good teamwork. (a) True (b) False
18. 18.Which need does a lift meet? (a) cross a wide river (b) reach a top floor fast (c) store water for summer (d) make power from sunlight
19. 19.True or false: “tall towers hold cables” is a beam bridge. (a) True (b) False
20. 20.True or false: a yoga mat needs a waterproof material. (a) True (b) False
21. 21.🤝 How do engineers share a design with others? (a) clear labelled sketches (b) only talking fast (c) no drawings at all (d) secret notes
22. 22.⚖️ A lever bar balances. The load is 800 N at 10 cm from the fulcrum. The effort is 100 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
23. 23.📋 Your team’s budget is ₹150. You must buy one roll of tape for ₹5. Straws cost ₹5 each. What is the greatest number of straws you can buy?
24. 24.Which of these is a screw? (a) a crowbar (b) a wood screw (c) a steering wheel (d) a flagpole rope wheel
25. 25.True or false: a curved stone doorway uses an arch. (a) False (b) True
26. 26.📋 Criterion: the model bridge must hold at least 900 g. In the test it held 1050 g. Does it meet the criterion? (a) Yes (b) No
27. 27.🏋️ A force of 10 N pushes a cart 1 m along the floor. How much work is done, in joules?
28. 28.🔄 Which design-process step is it to dream up possible fixes? (a) Create (b) Test (c) Plan (d) Imagine
29. 29.Which need does a train meet? (a) store water for summer (b) make power from sunlight (c) carry many people far (d) see very tiny things
30. 30.🌉 What holds up a long beam bridge in the middle? (a) nothing (b) cables only (c) balloons (d) piers
31. 31.🪝 A pulley system lifts a 360 N load with an effort of 90 N. What is its mechanical advantage (MA)?
32. 32.🌉 Which bridge type: “a rope bridge in hills”? (a) beam bridge (b) suspension bridge (c) arch bridge
33. 33.🔺 A flat frame has 9 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
34. 34.🔢 To follow the engineering design process, what comes right after “Imagine”? (a) Plan (b) Ask (c) Improve (d) Test
35. 35.⚖️ In a class 2 lever, what is in the middle? (a) the load (b) the fulcrum (c) the effort (d) the axle
36. 36.🔺 How do engineers stop a square frame from wobbling? (a) make it bigger (b) paint it (c) add a diagonal brace (d) take off a side
37. 37.Which of these needs a waterproof material? (a) a tea flask lining (b) a switch contact (c) a raincoat (d) a skipping rope
38. 38.🔢 To follow the engineering design process, which comes first: “Imagine” or “Plan”? (a) Plan (b) Imagine
39. 39.🪝 Fixed or movable pulley: which one is on a flagpole top? (a) a fixed pulley (b) a movable pulley
40. 40.Which of these is a wedge? (a) a nut and bolt (b) a road up a hill (c) a well winch handle (d) the tip of a nail

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