Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 218 · 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: a biomedical engineer designs electric motors. (a) False (b) True
2. 2.🧱 Which property matters most for a yoga mat? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
3. 3.🦺 Who should use hot glue guns and power tools in a kids’ project? (a) any child alone (b) the youngest child (c) a stranger (d) an adult
4. 4.📐 A beam is 710 cm long. How long is it in metres? =
5. 5.🏋️ A smooth ramp is 10 m long and rises 2 m. What effort pushes a 1000 N box up it, in newtons? (ideal ramp, no friction)
6. 6.📋 Criteria are … (a) goals a design must meet (b) the tools you use (c) the limits on money (d) the team names
7. 7.📋 For a model bridge challenge, is “be under 30 cm tall” a constraint or a criterion? (a) a criterion (b) a constraint
8. 8.🏋️ Mechanical advantage (MA) = … (a) load × effort (b) load ÷ effort (c) load + effort (d) effort ÷ load
9. 9.Which job is a saw for? (a) turn a screw (b) tighten a nut (c) cut a wooden plank (d) check a shelf is level
10. 10.🔺 One side of a straw bridge is a row of 1 triangle standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
11. 11.🏋️ Pushing a crate 9 m took 1710 J of work. What force was used, in newtons?
12. 12.🪢 Which material is good in tension but useless in compression? (a) a stone (b) a concrete block (c) a brick (d) a rope
13. 13.⚖️ What is the pivot point of a lever called? (a) the load (b) the fulcrum (c) the axle (d) the effort
14. 14.Which of these is a suspension bridge? (a) the simplest bridge (b) a rope bridge in hills (c) pushes out on its ends (d) a flat deck on piers
15. 15.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) biomedical (b) chemical (c) computer (d) civil
16. 16.Which of these needs a heat insulator? (a) a switch contact (b) an oven glove (c) a window pane (d) a magnifier lens
17. 17.🔺 One side of a straw bridge is a row of 6 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
18. 18.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
19. 19.Which of these is found in nature? (a) a waterfall (b) a ceiling fan (c) a water filter (d) a bridge
20. 20.🧑‍🔧 Which branch of engineering designs machines with moving parts? (a) civil (b) biomedical (c) chemical (d) mechanical
21. 21.📋 Constraint: the tower must be no taller than 70 cm. The team’s tower is 76 cm tall. Is it within the constraint? (a) No (b) Yes
22. 22.🛞 Is friction helpful or a problem here: shoe soles wearing out? (a) helpful (b) a problem
23. 23.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 4 N, a glass sheet 5 N, a wooden plank 8 N, a carpet 11 N. How many newtons more were needed on a carpet than on ice?
24. 24.⚙️ Which simple machine is a well winch handle? (a) wheel and axle (b) wedge (c) pulley (d) lever
25. 25.🔄 Which design-process step is it to follow the plan to build? (a) Create (b) Test (c) Ask (d) Plan
26. 26.Which job is a tape measure for? (a) grip and bend wire (b) measure an angle (c) smooth a rough edge (d) measure a long length
27. 27.🪝 A load of 600 N hangs from a pulley system in which 4 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
28. 28.📋 Constraint: the tower must be no taller than 80 cm. The team’s tower is 82 cm tall. Is it within the constraint? (a) Yes (b) No
29. 29.💪 A cart is pulled to the right with 70 N and to the left with 85 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
30. 30.🔢 To follow the engineering design process, what comes right after “Create”? (a) Ask (b) Imagine (c) Improve (d) Test
31. 31.📐 A beam is 680 cm long. How long is it in metres? =
32. 32.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 320 g. How many more grams did it hold?
33. 33.🪝 A pulley system has 1 rope section holding up the load. To lift the load by 10 m, how many metres of rope must you pull?
34. 34.True or false: a squeezed spring is in tension (pulled). (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) change lots at once (b) change only one thing (c) measure the same way (d) use the same load
36. 36.Which of these needs a heat insulator? (a) a car windscreen (b) a cooking pot handle (c) an umbrella cover (d) a skipping rope
37. 37.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) transparent (c) electrical conductor (d) flexible
38. 38.🛠️ Is a cloud made by engineers or found in nature? (a) found in nature (b) made by engineers
39. 39.📋 Your team’s budget is ₹33. You must buy one roll of tape for ₹10. Straws cost ₹3 each. What is the greatest number of straws you can buy?
40. 40.♻️ A family used to throw away 6 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 3 weeks?

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