Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 752 · 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 raincoat needs a heat insulator. (a) True (b) False
2. 2.📐 A beam is 450 cm long. How long is it in metres? =
3. 3.True or false: pushing a trolley is a push. (a) False (b) True
4. 4.⚖️ A seesaw balances. Ravi (360 N) sits 2 m from the pivot on one side; Kabir (? N) sits 3 m from the pivot on the other side. What is the missing weight in newtons?
5. 5.🛞 Rubbing your hands fast makes them … (a) cold (b) wet (c) warm (d) magnetic
6. 6.🔺 Which strong shape does an igloo use? (a) arch (b) dome (c) beam (d) triangle
7. 7.True or false: a fixed pulley makes you pull 2× rope. (a) True (b) False
8. 8.True or false: to clamp wood before sawing is not safe. (a) False (b) True
9. 9.🛠️ People need to carry many people far. Which invention helps? (a) a lift (b) a dam (c) a train (d) a tunnel
10. 10.True or false: a fixed pulley stays in one place. (a) True (b) False
11. 11.📋 Criteria are … (a) the limits on money (b) the team names (c) goals a design must meet (d) the tools you use
12. 12.🔍 Which is the odd one out? (a) float for 1 minute (b) be under 30 cm tall (c) keep ice for 1 hour (d) stand in a fan breeze
13. 13.True or false: a mechanical engineer designs aeroplane wings. (a) True (b) False
14. 14.True or false: a banyan tree is found in nature. (a) True (b) False
15. 15.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
16. 16.🔍 Which is the odd one out? (a) stacking loose bricks (b) using a heavy roof (c) building tall and narrow (d) using a light roof
17. 17.Which job is a hammer for? (a) drive in a nail (b) tighten a nut (c) turn a screw (d) check a shelf is level
18. 18.🔍 Which is the odd one out? (a) use only paper and tape (b) hold up 500 g (c) use at most 20 straws (d) spend at most ₹100
19. 19.⚖️ A seesaw balances. Asha (440 N) sits ? m from the pivot on one side; Zoya (110 N) sits 4 m from the pivot on the other side. What is the missing distance in metres?
20. 20.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) glass (d) copper
21. 21.🌉 In a suspension bridge, the main cables are in … (a) no force (b) tension (c) friction (d) compression
22. 22.🔍 Which is the odd one out? (a) play near a moving drill (b) leave tools on the floor (c) cut towards your hand (d) carry scissors closed
23. 23.📐 How many millimetres are in 1 centimetre? (a) 5 (b) 100 (c) 1000 (d) 10
24. 24.Which of these needs an electrical conductor? (a) a plug pin (b) a water tank (c) a car windscreen (d) a yoga mat
25. 25.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) building tall and narrow (c) having a wide base (d) stacking loose bricks
26. 26.Which need does a solar panel meet? (a) talk to someone far away (b) store water for summer (c) go through a mountain (d) make power from sunlight
27. 27.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) computer (b) biomedical (c) civil (d) chemical
28. 28.📐 A model car is drawn so that 1 cm stands for 20 cm. The car is 4 cm long in the drawing. How long is the real car, in centimetres?
29. 29.🔍 Which is the odd one out? (a) finish in 40 minutes (b) use at most 20 straws (c) float for 1 minute (d) spend at most ₹100
30. 30.Which job does a mechanical engineer do? (a) designs hearing aids (b) designs factory machines (c) designs satellites (d) plans a dam
31. 31.Which job does a civil engineer do? (a) designs factory machines (b) lays out a highway (c) designs bicycle gears (d) wires a new building
32. 32.🔺 Which strong shape does a crane arm use? (a) dome (b) beam (c) arch (d) triangle
33. 33.⚖️ A lever bar balances. The load is 120 N at ? cm from the fulcrum. The effort is 40 N at 60 cm from the fulcrum on the other side. What is the missing distance in centimetres?
34. 34.Which of these is a wedge? (a) a screw jack (b) an axe blade (c) a crowbar (d) a nutcracker
35. 35.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a glass sheet 3 N, a wooden plank 5 N, a carpet 8 N, sandpaper 9 N. How many newtons more were needed on sandpaper than on a glass sheet?
36. 36.⚖️ A seesaw balances. Zoya (120 N) sits 1 m from the pivot on one side; Asha (120 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
37. 37.🤝 Why do engineers work in teams? (a) to finish nothing (b) to argue more (c) many skills and ideas (d) to work alone
38. 38.♻️ Which is the BEST order to think about waste? (a) recycle, reuse, reduce (b) burn, bury, forget (c) reduce, reuse, recycle (d) reuse, recycle, reduce
39. 39.🌉 Which bridge type: “deck hangs from cables”? (a) suspension bridge (b) arch bridge (c) beam bridge
40. 40.Which of these happens in the Ask step? (a) brainstorm many ideas (b) fix the weak part (c) pick the build order (d) define the problem

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