Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 485 · 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: your forearm is a class 1 lever (fulcrum in the middle). (a) False (b) True
2. 2.🤝 Is it good or poor teamwork to talk over others? (a) good teamwork (b) poor teamwork
3. 3.🔍 Which is the odd one out? (a) put tools back after use (b) let adults use hot glue (c) clamp wood before sawing (d) leave tools on the floor
4. 4.True or false: a civil engineer designs a gearbox. (a) True (b) False
5. 5.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) building tall and narrow (c) stacking loose bricks (d) adding cross bracing
6. 6.True or false: to tighten a nut, use a spanner. (a) False (b) True
7. 7.True or false: to use a new load each time is poor testing. (a) True (b) False
8. 8.🛞 More or less friction: powder on a carrom board? (a) more friction (b) less friction
9. 9.🔍 Which is the odd one out? (a) a coral reef (b) a railway track (c) a satellite (d) a bridge
10. 10.True or false: a fort gateway uses an arch. (a) False (b) True
11. 11.🔍 Which is the odd one out? (a) a river (b) a banyan tree (c) a mountain (d) a railway track
12. 12.💪 Two children push a box to the right, one with 75 N and the other with 30 N. What is the net (total) force on the box, in newtons?
13. 13.📋 Criteria are … (a) goals a design must meet (b) the limits on money (c) the team names (d) the tools you use
14. 14.⚙️ Which simple machine is a claw hammer on a nail? (a) wheel and axle (b) inclined plane (c) screw (d) lever
15. 15.🧑‍🔧 Which kind of engineer builds rockets? (a) biomedical (b) mechanical (c) electrical (d) aerospace
16. 16.Which of these is an inclined plane? (a) a truck loading ramp (b) a round doorknob (c) a well-bucket rope wheel (d) a claw hammer on a nail
17. 17.🪢 A beam rests on two supports and is pressed down in the middle. Its bottom edge is … (a) squeezed (compression) (b) twisted (c) not affected (d) stretched (tension)
18. 18.💪 A box weighs 510 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
19. 19.💪 A cart is pulled to the right with 75 N and to the left with 60 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
20. 20.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
21. 21.True or false: to change only one thing is poor testing. (a) True (b) False
22. 22.True or false: to run while holding tools is not safe. (a) False (b) True
23. 23.🔢 To follow the engineering design process, which is the LAST step? (a) Plan (b) Improve (c) Imagine (d) Ask
24. 24.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
25. 25.True or false: to own up to a mistake is good teamwork. (a) False (b) True
26. 26.📋 Criterion: the model bridge must hold at least 800 g. In the test it held 850 g. Does it meet the criterion? (a) No (b) Yes
27. 27.⚖️ Turning effect = force × … (a) time taken (b) mass of fulcrum (c) colour of bar (d) distance from fulcrum
28. 28.Which of these uses a beam? (a) a plank over a drain (b) an electric pylon (c) a planetarium roof (d) a truss bridge side
29. 29.⚙️ Most simple machines make work easier by letting us … (a) stop all friction (b) switch off gravity (c) use a smaller force (d) make new energy
30. 30.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
31. 31.🔢 To follow the engineering design process, which comes first: “Plan” or “Ask”? (a) Ask (b) Plan
32. 32.🌉 In a stone arch bridge, the stones are in … (a) no force (b) compression (c) tension (d) friction
33. 33.💪 A cart is pulled to the right with 40 N and to the left with 30 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
34. 34.True or false: to give kind feedback is poor teamwork. (a) False (b) True
35. 35.🏋️ A force of 120 N did 600 J of work. How many metres did the object move?
36. 36.🧑‍🔧 Which kind of engineer designs a flyover? (a) biomedical (b) chemical (c) aerospace (d) civil
37. 37.⚙️ Which simple machine is a wood screw? (a) inclined plane (b) wedge (c) wheel and axle (d) screw
38. 38.⚖️ Along a straight bar, measured from the left end, the effort is at 0 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
39. 39.⚖️ A seesaw balances. Kabir (760 N) sits ? m from the pivot on one side; Arjun (570 N) sits 4 m from the pivot on the other side. What is the missing distance in metres?
40. 40.🛠️ People need to talk to someone far away. Which invention helps? (a) a microscope (b) a bridge (c) a fridge (d) a telephone

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