Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 952 · 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 of these is a pulley? (a) a nut and bolt (b) a crane hook block (c) a jar lid (d) a nutcracker
2. 2.🪝 A well winch has a handle (wheel) of radius 12 cm turning an axle of radius 4 cm. What is its mechanical advantage (MA)?
3. 3.🔺 One side of a straw bridge is a row of 14 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
4. 4.True or false: “carry 10 coins” is a criterion (a goal). (a) False (b) True
5. 5.Which of these happens in the Ask step? (a) follow the plan to build (b) redesign after testing (c) ask who will use it (d) fix the weak part
6. 6.True or false: to hide a mistake is good teamwork. (a) False (b) True
7. 7.Which job does a mechanical engineer do? (a) writes app software (b) makes medicines in bulk (c) designs car engines (d) runs a fertiliser plant
8. 8.⚖️ Going along a lever from one end to the other, the order is: effort, load, fulcrum. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
9. 9.⚖️ A seesaw balances. Kabir (570 N) sits ? m from the pivot on one side; Ravi (190 N) sits 3 m from the pivot on the other side. What is the missing distance in metres?
10. 10.Which need does a solar panel meet? (a) reach a top floor fast (b) make power from sunlight (c) store water for summer (d) cross a wide river
11. 11.🪝 What does a single fixed pulley change? (a) the colour of rope (b) the size of the load (c) the direction of pull (d) gravity
12. 12.True or false: a movable pulley only changes direction. (a) False (b) True
13. 13.🧑‍🔧 Which branch of engineering uses engineering to help doctors? (a) biomedical (b) electrical (c) civil (d) aerospace
14. 14.⚖️ In a class 1 lever, what is in the middle? (a) the load (b) the fulcrum (c) nothing (d) the effort
15. 15.🏋️ Pushing a crate 2 m took 360 J of work. What force was used, in newtons?
16. 16.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
17. 17.🔍 Which is the odd one out? (a) repeat each test (b) guess, do not measure (c) skip writing results (d) change lots at once
18. 18.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a carpet 9 N, ice 1 N, a glass sheet 2 N, a wooden plank 5 N. Which surface gave the most friction? (a) a glass sheet (b) ice (c) a carpet (d) a wooden plank
19. 19.🤝 Is it good or poor teamwork to laugh at ideas? (a) poor teamwork (b) good teamwork
20. 20.🔺 One side of a straw bridge is a row of 11 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
21. 21.🏋️ A 1 kg box is lifted straight up by 3 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
22. 22.🏋️ A force of 400 N pushes a cart 6 m along the floor. How much work is done, in joules?
23. 23.🏋️ A force of 290 N pushes a cart 2 m along the floor. How much work is done, in joules?
24. 24.⚙️ Which simple machine is a nut and bolt? (a) wheel and axle (b) screw (c) lever (d) wedge
25. 25.🧑‍🔧 Which kind of engineer designs factory machines? (a) computer (b) electrical (c) mechanical (d) biomedical
26. 26.🏋️ A 13 kg box is lifted straight up by 2 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
27. 27.🏋️ A force of 240 N pushes a cart 4 m along the floor. How much work is done, in joules?
28. 28.🏋️ Mechanical advantage (MA) = … (a) load ÷ effort (b) load + effort (c) load × effort (d) effort ÷ load
29. 29.🪝 A pulley system lifts an 810 N load with an effort of 270 N. What is its mechanical advantage (MA)?
30. 30.⚙️ How many simple machines are there in the usual list? (a) 3 (b) 6 (c) 12 (d) 10
31. 31.📋 For a model bridge challenge, is “use only paper and tape” a constraint or a criterion? (a) a constraint (b) a criterion
32. 32.🌉 Which bridge type: “tall towers hold cables”? (a) arch bridge (b) beam bridge (c) suspension bridge
33. 33.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
34. 34.🏋️ A 3 kg box is lifted straight up by 3 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
35. 35.🔍 Which is the odd one out? (a) leave tools on the floor (b) wear safety goggles (c) cut towards your hand (d) run while holding tools
36. 36.True or false: a mechanical engineer designs factory machines. (a) False (b) True
37. 37.What does the recorder do? (a) cuts and joins parts (b) keeps the design notes (c) tracks what is used up (d) puts the model together
38. 38.Which job does a computer engineer do? (a) designs aeroplane wings (b) designs a gearbox (c) builds a website (d) designs factory machines
39. 39.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a wooden plank 5 N, a carpet 9 N, sandpaper 13 N, a glass sheet 4 N. How many newtons more were needed on sandpaper than on a glass sheet?
40. 40.🔺 Which strong shape does an old stone bridge use? (a) beam (b) triangle (c) arch (d) dome

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