Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 896 · 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.🔢 To follow the engineering design process, which comes first: “Improve” or “Create”? (a) Improve (b) Create
2. 2.⚙️ A wedge is … (a) a wheel on a rod (b) a rope on a wheel (c) a bar on a pivot (d) two ramps back to back
3. 3.True or false: a rough doormat gives less friction. (a) True (b) False
4. 4.💪 A box weighs 470 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
5. 5.⚖️ A seesaw balances. Kabir (300 N) sits ? m from the pivot on one side; Ravi (100 N) sits 3 m from the pivot on the other side. What is the missing distance in metres?
6. 6.🏚️ Three solid model towers are made of the same material. Tower A is 180 cm tall on a 30 cm wide base, tower B is 20 cm tall on a 10 cm base and tower C is 80 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
7. 7.🛞 Friction acts … (a) only on ice (b) only upwards (c) against the motion (d) with the motion
8. 8.⚙️ A screw is really … (a) a kind of wheel (b) a tiny pulley (c) a bent lever (d) a ramp wrapped round
9. 9.True or false: to pick the build order is the Improve step. (a) False (b) True
10. 10.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 40 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 60 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
11. 11.True or false: a suspension cable is in tension (pulled). (a) False (b) True
12. 12.🛠️ Is a water filter made by engineers or found in nature? (a) made by engineers (b) found in nature
13. 13.⚖️ In a class 2 lever, what is in the middle? (a) the fulcrum (b) the effort (c) the axle (d) the load
14. 14.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
15. 15.🤝 A teammate’s idea seems odd. What should you do first? (a) listen and ask why (b) ignore it (c) walk away (d) laugh at it
16. 16.⚖️ Which class of lever is a nutcracker? (a) class 3 (b) class 1 (c) class 2
17. 17.Which of these happens in the Improve step? (a) redesign after testing (b) define the problem (c) measure its performance (d) brainstorm many ideas
18. 18.🔄 Which design-process step is it to measure its performance? (a) Imagine (b) Test (c) Plan (d) Create
19. 19.♻️ Which is the BEST order to think about waste? (a) recycle, reuse, reduce (b) burn, bury, forget (c) reuse, recycle, reduce (d) reduce, reuse, recycle
20. 20.🔍 Which is the odd one out? (a) spend at most ₹100 (b) use only paper and tape (c) fit on a school desk (d) carry 10 coins
21. 21.🔢 To follow the engineering design process, what comes right after “Test”? (a) Plan (b) Imagine (c) Create (d) Improve
22. 22.True or false: a biomedical engineer designs hearing aids. (a) False (b) True
23. 23.🪢 Tension is a force that … (a) pulls or stretches (b) heats things (c) pushes or squeezes (d) turns things
24. 24.🏋️ Pushing a crate 1 m took 60 J of work. What force was used, in newtons?
25. 25.True or false: a movable pulley halves the effort. (a) True (b) False
26. 26.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) cardboard (d) paper
27. 27.Which of these is a wheel and axle? (a) a water tap handle (b) a wheelchair ramp (c) a window blind cord (d) the tip of a nail
28. 28.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using a light roof (c) stacking loose bricks (d) building tall and narrow
29. 29.🔺 One side of a straw bridge is a row of 12 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
30. 30.True or false: a solar panel helps people carry many people far. (a) True (b) False
31. 31.🔄 In which step do engineers draw a labelled diagram? (a) Plan (b) Ask (c) Improve (d) Test
32. 32.⚖️ Which class of lever is a lemon squeezer? (a) class 1 (b) class 2 (c) class 3
33. 33.True or false: “fit on a school desk” is a criterion (a goal). (a) False (b) True
34. 34.🏋️ A machine lifts a load of 50 N when you push with 10 N. What is its mechanical advantage (MA)?
35. 35.⚖️ A lever bar balances. The load is ? N at 10 cm from the fulcrum. The effort is 80 N at 30 cm from the fulcrum on the other side. What is the missing force in newtons?
36. 36.🛞 Rubbing your hands fast makes them … (a) magnetic (b) cold (c) wet (d) warm
37. 37.🏋️ Work is done when a force moves something … (a) through a distance (b) without moving it (c) only upwards (d) very slowly
38. 38.🏚️ Why is a wide base safer? (a) it is colourful (b) it is taller (c) it is lighter (d) it is harder to tip over
39. 39.What does the team leader do? (a) shares out the jobs (b) puts the model together (c) cuts and joins parts (d) tracks what is used up
40. 40.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator

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