Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 165 · 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.True or false: to pick the build order is the Plan step. (a) True (b) False
2. 2.🪝 A winch has a wheel of radius 8 cm and an axle of radius 1 cm. What effort on the wheel lifts a 720 N bucket on the axle, in newtons? (ideal)
3. 3.Which of these is reuse (use again)? (a) switch off unused lights (b) melt cans into new cans (c) refill a water bottle (d) buy less packaging
4. 4.True or false: a computer engineer plans a space mission. (a) False (b) True
5. 5.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) biomedical (b) civil (c) computer (d) chemical
6. 6.🔍 Which is the odd one out? (a) the tip of a nail (b) a knife edge (c) a door stopper (d) a flagpole rope wheel
7. 7.🔍 Which is the odd one out? (a) skating on ice (b) a grippy rubber sole (c) a rough doormat (d) chalk on a gym bar
8. 8.Which need does a microscope meet? (a) reach a top floor fast (b) make water safe to drink (c) see very tiny things (d) cross a wide river
9. 9.Which of these is a lever? (a) a claw hammer on a nail (b) a knife edge (c) a truck loading ramp (d) a chisel
10. 10.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) adding steel to concrete (c) raising heavy tanks high (d) fitting rubber base pads
11. 11.📐 A model car is drawn so that 1 cm stands for 30 cm. The car is 11 cm long in the drawing. How long is the real car, in centimetres?
12. 12.🤝 Is it good or poor teamwork to help a stuck teammate? (a) good teamwork (b) poor teamwork
13. 13.True or false: a grippy rubber sole gives more friction. (a) False (b) True
14. 14.🔺 A frame shaped like a pentagon is made of straws joined by loose pins, with 1 corner-to-corner brace. Is it rigid or wobbly? (a) rigid (b) wobbly
15. 15.Which of these happens in the Ask step? (a) measure its performance (b) define the problem (c) brainstorm many ideas (d) follow the plan to build
16. 16.🪝 Fixed or movable pulley: which one makes you pull 2× rope? (a) a fixed pulley (b) a movable pulley
17. 17.True or false: a civil engineer designs a paint factory. (a) False (b) True
18. 18.True or false: using a light roof makes a building safer in earthquakes. (a) True (b) False
19. 19.⚖️ A seesaw balances. Asha (390 N) sits 4 m from the pivot on one side; Meena (520 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
20. 20.♻️ A project report has 94 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
21. 21.🔢 To follow the engineering design process, which comes first: “Create” or “Imagine”? (a) Create (b) Imagine
22. 22.🪝 A winch has a wheel of radius 10 cm and an axle of radius 5 cm. What effort on the wheel lifts a 200 N bucket on the axle, in newtons? (ideal)
23. 23.♻️ A project report has 60 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
24. 24.⚖️ A lever bar balances. The load is 50 N at 30 cm from the fulcrum. The effort is 30 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
25. 25.⚖️ A seesaw balances. Meena (? N) sits 1 m from the pivot on one side; Zoya (190 N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?
26. 26.⚖️ Turning effect = force × … (a) mass of fulcrum (b) colour of bar (c) distance from fulcrum (d) time taken
27. 27.True or false: a computer engineer designs artificial limbs. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) a mobile phone (b) a waterfall (c) a bridge (d) a water filter
29. 29.True or false: a wheel on ball bearings gives more friction. (a) True (b) False
30. 30.♻️ A sustainable design … (a) uses the most plastic (b) lasts one day (c) wastes water (d) protects the future
31. 31.🌉 A beam bridge is 240 m long. Piers split it into equal spans of 40 m. How many spans are there?
32. 32.Which of these is made by engineers? (a) a seashell (b) a lift (c) a mountain (d) a volcano
33. 33.🛞 How can we reduce friction in a machine? (a) make parts rough (b) add sand (c) press parts harder (d) oil the moving parts
34. 34.♻️ Is wind a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
35. 35.⚖️ Along a straight bar, measured from the left end, the effort is at 110 cm, the fulcrum at 70 cm and the load at 30 cm. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
36. 36.🤝 In a design team, who runs the tests? (a) materials manager (b) builder (c) team leader (d) tester
37. 37.🔢 To follow the engineering design process, which is the FIRST step? (a) Improve (b) Plan (c) Ask (d) Imagine
38. 38.⚙️ A screw is really … (a) a tiny pulley (b) a ramp wrapped round (c) a bent lever (d) a kind of wheel
39. 39.True or false: to touch a hot glue tip is safe. (a) False (b) True
40. 40.🏋️ A 1 kg box is lifted straight up by 4 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?

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