Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 984 · 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.🤝 Why do engineers work in teams? (a) to work alone (b) many skills and ideas (c) to finish nothing (d) to argue more
2. 2.🔢 To follow the engineering design process, what comes right after “Ask”? (a) Plan (b) Create (c) Imagine (d) Test
3. 3.🌉 In a stone arch bridge, the stones are in … (a) compression (b) friction (c) no force (d) tension
4. 4.🛠️ Is a mountain made by engineers or found in nature? (a) made by engineers (b) found in nature
5. 5.🤝 A team of 3 shares 12 equal jobs fairly. Each job takes 10 minutes. How many minutes does each person work?
6. 6.🔢 To follow the engineering design process, which comes first: “Create” or “Improve”? (a) Create (b) Improve
7. 7.🧱 Which property matters most for a water tank? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
8. 8.💪 A box weighs 470 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
9. 9.🤝 Is it good or poor teamwork to ignore the team plan? (a) poor teamwork (b) good teamwork
10. 10.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 4 N, a glass sheet 8 N, a wooden plank 12 N, sandpaper 16 N. How many newtons more were needed on sandpaper than on ice?
11. 11.Which of these is found in nature? (a) a banyan tree (b) a water filter (c) a ceiling fan (d) a bicycle
12. 12.🧑‍🔧 Which kind of engineer wires a new building? (a) aerospace (b) mechanical (c) electrical (d) computer
13. 13.⚖️ A lever bar balances. The load is ? N at 30 cm from the fulcrum. The effort is 180 N at 40 cm from the fulcrum on the other side. What is the missing force in newtons?
14. 14.True or false: a mechanical engineer designs bicycle gears. (a) False (b) True
15. 15.🪝 A load of 960 N hangs from a pulley system in which 4 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
16. 16.🔢 To follow the engineering design process, which is the LAST step? (a) Imagine (b) Plan (c) Improve (d) Ask
17. 17.True or false: a pair of pliers is a class 2 lever (load in the middle). (a) False (b) True
18. 18.🪝 Fixed or movable pulley: which one makes you pull 2× rope? (a) a fixed pulley (b) a movable pulley
19. 19.🔧 Which tool would you use to turn a screw? (a) sandpaper (b) a saw (c) a hand drill (d) a screwdriver
20. 20.♻️ A family used to throw away 8 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 3 weeks?
21. 21.🪢 Compression is a force that … (a) pushes or squeezes (b) pulls or stretches (c) makes light (d) cools things
22. 22.🔍 Which is the odd one out? (a) a bottle opener (b) a well-bucket rope wheel (c) a window blind cord (d) a crane hook block
23. 23.💪 A cart is pulled to the right with 85 N and to the left with 75 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
24. 24.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
25. 25.💪 A bag has a mass of 57 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
26. 26.📐 On a plan, 1 cm stands for 10 m. A wall is 17 cm long on the plan. How long is the real wall, in metres?
27. 27.📋 For a model bridge challenge, is “stand in a fan breeze” a constraint or a criterion? (a) a criterion (b) a constraint
28. 28.🔍 Which is the odd one out? (a) run while holding tools (b) cut towards your hand (c) wear safety goggles (d) leave tools on the floor
29. 29.🪝 A bucket weighing 450 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
30. 30.🛞 More or less friction: oil on a squeaky hinge? (a) less friction (b) more friction
31. 31.🧑‍🔧 Which kind of engineer designs artificial limbs? (a) civil (b) computer (c) mechanical (d) biomedical
32. 32.🛞 More or less friction: a smooth steel slide? (a) more friction (b) less friction
33. 33.🪢 Which material is good in tension but useless in compression? (a) a rope (b) a brick (c) a stone (d) a concrete block
34. 34.⚖️ Which class of lever is a fishing rod? (a) class 2 (b) class 3 (c) class 1
35. 35.🔺 Which strong shape does an electric pylon use? (a) triangle (b) arch (c) dome (d) beam
36. 36.True or false: a biomedical engineer designs hearing aids. (a) True (b) False
37. 37.🛞 Friction acts … (a) only upwards (b) with the motion (c) only on ice (d) against the motion
38. 38.Which of these is made by engineers? (a) a seashell (b) a cloud (c) a water filter (d) a mountain
39. 39.🔺 A flat frame has 12 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
40. 40.🔍 Which is the odd one out? (a) cut away from your body (b) wear safety goggles (c) cut towards your hand (d) put tools back after use

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