Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 480 · 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 is the odd one out? (a) spend at most ₹100 (b) float for 1 minute (c) fit on a school desk (d) finish in 40 minutes
2. 2.⚖️ Going along a lever from one end to the other, the order is: effort, fulcrum, load. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
3. 3.🏋️ A force of 470 N did 1880 J of work. How many metres did the object move?
4. 4.Which job does an electrical engineer do? (a) lays out a highway (b) plans a space mission (c) designs power lines (d) builds a website
5. 5.True or false: a coral reef is made by engineers. (a) True (b) False
6. 6.📐 On a plan, 1 cm stands for 5 m. A real bridge is 95 m long. How long is it on the plan, in centimetres?
7. 7.🪝 A load of 280 N hangs from a pulley system in which 4 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
8. 8.True or false: a magnifier lens needs a flexible material. (a) True (b) False
9. 9.📐 On a plan, 1 cm stands for 5 m. A real bridge is 60 m long. How long is it on the plan, in centimetres?
10. 10.🔄 Which design-process step is it to try it out? (a) Test (b) Create (c) Improve (d) Ask
11. 11.🔺 Which strong shape does a crane arm use? (a) arch (b) triangle (c) dome (d) beam
12. 12.🧑‍🔧 Which branch of engineering uses engineering to help doctors? (a) civil (b) electrical (c) aerospace (d) biomedical
13. 13.Which of these is in tension (pulled)? (a) a brick at a wall base (b) a tow rope on a car (c) a table leg (d) a pillar under a roof
14. 14.📐 A model car is drawn so that 1 cm stands for 20 cm. The car is 6 cm long in the drawing. How long is the real car, in centimetres?
15. 15.🏋️ In which unit is work measured? (a) newton (N) (b) watt hour (c) metre (m) (d) joule (J)
16. 16.🛠️ What does an engineer do before building anything? (a) understands the problem (b) paints the model (c) builds at once (d) buys every material
17. 17.📐 On a plan, 1 cm stands for 2 m. A wall is 14 cm long on the plan. How long is the real wall, in metres?
18. 18.🔍 Which is the odd one out? (a) spend at most ₹100 (b) finish in 40 minutes (c) use at most 20 straws (d) carry 10 coins
19. 19.True or false: a nutcracker is a class 2 lever (load in the middle). (a) False (b) True
20. 20.⚖️ A lever bar balances. The load is 800 N at ? cm from the fulcrum. The effort is 240 N at 100 cm from the fulcrum on the other side. What is the missing distance in centimetres?
21. 21.True or false: flowing river water is a non-renewable energy source. (a) True (b) False
22. 22.True or false: to skip writing results is good testing. (a) False (b) True
23. 23.🔢 To follow the engineering design process, what comes right after “Create”? (a) Plan (b) Test (c) Ask (d) Imagine
24. 24.🏋️ A smooth ramp is 2 m long and rises 1 m. What effort pushes a 1500 N box up it, in newtons? (ideal ramp, no friction)
25. 25.Which of these is a wheel and axle? (a) the tip of a nail (b) a seesaw (c) a water tap handle (d) a chisel
26. 26.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
27. 27.🧱 Which property matters most for a switch contact? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
28. 28.🔄 Which design-process step is it to list the materials? (a) Plan (b) Improve (c) Ask (d) Create
29. 29.🌉 What holds up a long beam bridge in the middle? (a) cables only (b) nothing (c) balloons (d) piers
30. 30.🤝 Is it good or poor teamwork to do all the work alone? (a) poor teamwork (b) good teamwork
31. 31.True or false: “good for short gaps” is a suspension bridge. (a) False (b) True
32. 32.♻️ Reduce, reuse or recycle: print on both sides? (a) recycle (b) reuse (c) reduce
33. 33.🔍 Which is the odd one out? (a) a smooth steel slide (b) a rough doormat (c) chalk on a gym bar (d) a tyre with deep treads
34. 34.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) cotton wool (d) paper
35. 35.🤝 A team plans for 35 minutes, builds for 50 minutes and then tests for 10 minutes, one after another. How many minutes is that in all?
36. 36.♻️ A sustainable design … (a) protects the future (b) wastes water (c) uses the most plastic (d) lasts one day
37. 37.🔄 Which design-process step is it to fix the weak part? (a) Improve (b) Create (c) Ask (d) Test
38. 38.Which of these uses triangles? (a) a bicycle frame (b) an old stone bridge (c) an igloo (d) a round palace roof
39. 39.⚖️ A seesaw balances. Ravi (120 N) sits 4 m from the pivot on one side; Asha (480 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
40. 40.True or false: a car seat belt needs a heat insulator. (a) True (b) False

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