Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 665 · 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 shape keeps its shape best when its corners are pinned? (a) hexagon (b) square (c) rectangle (d) triangle
2. 2.True or false: a biomedical engineer builds a website. (a) False (b) True
3. 3.📐 A model car is drawn so that 1 cm stands for 10 cm. The car is 2 cm long in the drawing. How long is the real car, in centimetres?
4. 4.💪 Two children push a box to the right, one with 70 N and the other with 75 N. What is the net (total) force on the box, in newtons?
5. 5.🛠️ Is a ceiling fan made by engineers or found in nature? (a) made by engineers (b) found in nature
6. 6.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
7. 7.🏋️ Mechanical advantage (MA) = … (a) load ÷ effort (b) effort ÷ load (c) load × effort (d) load + effort
8. 8.🔍 Which is the odd one out? (a) a flagpole rope wheel (b) a well-bucket rope wheel (c) a crane hook block (d) a bottle opener
9. 9.🧱 Which property matters most for a plug pin? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
10. 10.🔢 To follow the engineering design process, which is the LAST step? (a) Ask (b) Plan (c) Improve (d) Imagine
11. 11.🧑‍🔧 Which kind of engineer designs a flyover? (a) aerospace (b) civil (c) computer (d) mechanical
12. 12.📋 Criteria are … (a) the tools you use (b) the limits on money (c) goals a design must meet (d) the team names
13. 13.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 20 cm wide base, tower B is 140 cm tall on a 20 cm base and tower C is 240 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
14. 14.True or false: an axe blade is a wedge. (a) True (b) False
15. 15.🏋️ A smooth ramp is 6 m long and rises 1 m. What effort pushes a 3900 N box up it, in newtons? (ideal ramp, no friction)
16. 16.🔺 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?
17. 17.🛞 More or less friction: chalk on a gym bar? (a) less friction (b) more friction
18. 18.🛠️ People need to make water safe to drink. Which invention helps? (a) a fridge (b) a water filter (c) a dam (d) a telephone
19. 19.True or false: a water filter helps people go through a mountain. (a) True (b) False
20. 20.📐 On a plan, 1 cm stands for 2 m. A real bridge is 4 m long. How long is it on the plan, in centimetres?
21. 21.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a wooden plank 2 N, a carpet 5 N, sandpaper 9 N, a glass sheet 1 N. Which surface gave the most friction? (a) sandpaper (b) a wooden plank (c) a glass sheet (d) a carpet
22. 22.Which of these is in compression (pushed)? (a) a tow rope on a car (b) a suspension cable (c) a tent guy rope (d) a temple column
23. 23.🔄 Which design-process step is it to make a prototype? (a) Create (b) Test (c) Improve (d) Plan
24. 24.What does the tester do? (a) puts the model together (b) writes down results (c) checks the goals are met (d) shares out the jobs
25. 25.True or false: to build the model is the Plan step. (a) True (b) False
26. 26.True or false: a broom when sweeping is a class 3 lever (effort in the middle). (a) False (b) True
27. 27.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
28. 28.🪢 Tension or compression: a swing chain? (a) tension (b) compression
29. 29.⚖️ Which class of lever is a bottle opener? (a) class 3 (b) class 1 (c) class 2
30. 30.What does the builder do? (a) writes down results (b) puts the model together (c) keeps the team on track (d) checks the goals are met
31. 31.🔧 Which tool would you use to make a hole in wood? (a) a hand drill (b) a hammer (c) a screwdriver (d) a tape measure
32. 32.True or false: a civil engineer designs a metro tunnel. (a) False (b) True
33. 33.📋 Your team’s budget is ₹74. You must buy one roll of tape for ₹15. Straws cost ₹2 each. What is the greatest number of straws you can buy?
34. 34.⚙️ Which simple machine is a crowbar? (a) inclined plane (b) pulley (c) lever (d) screw
35. 35.🔄 What is the FIRST step of the engineering design process? (a) Test (b) Ask (c) Improve (d) Create
36. 36.What does the team leader do? (a) tracks what is used up (b) runs the tests (c) keeps the team on track (d) collects the supplies
37. 37.Which of these needs a flexible material? (a) a window pane (b) a tea flask lining (c) a car seat belt (d) a boat hull
38. 38.🧑‍🔧 Which branch of engineering uses engineering to help doctors? (a) aerospace (b) biomedical (c) civil (d) electrical
39. 39.🪝 What does a single fixed pulley change? (a) gravity (b) the colour of rope (c) the direction of pull (d) the size of the load
40. 40.🏋️ A 20 kg box is lifted straight up by 5 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?

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