Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 947 · 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.⚖️ A lever balances when … (a) turning effects match (b) the bar is short (c) the fulcrum moves (d) both weights are equal
2. 2.🛠️ Is a satellite made by engineers or found in nature? (a) found in nature (b) made by engineers
3. 3.🛞 Friction acts … (a) with the motion (b) only upwards (c) only on ice (d) against the motion
4. 4.🤝 A team of 4 shares 12 equal jobs fairly. Each job takes 4 minutes. How many minutes does each person work?
5. 5.🔍 Which is the odd one out? (a) graphite (b) copper (c) brass (d) rubber
6. 6.True or false: a mobile phone is found in nature. (a) True (b) False
7. 7.True or false: to measure an angle, use pliers. (a) False (b) True
8. 8.True or false: “finish in 40 minutes” is a criterion (a goal). (a) False (b) True
9. 9.True or false: “stand in a fan breeze” is a criterion (a goal). (a) False (b) True
10. 10.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a glass sheet 1 N, a wooden plank 4 N, a carpet 8 N, sandpaper 9 N. Which surface gave the most friction? (a) a wooden plank (b) a carpet (c) sandpaper (d) a glass sheet
11. 11.Which of these is a pulley? (a) a seesaw (b) a nut and bolt (c) a well-bucket rope wheel (d) a screw jack
12. 12.🏋️ A machine lifts a load of 220 N when you push with 110 N. What is its mechanical advantage (MA)?
13. 13.🤝 In a design team, who keeps the team on track? (a) materials manager (b) team leader (c) builder (d) recorder
14. 14.🛠️ Which of these is a problem an engineer could solve? (a) a sad song (b) a lost cricket match (c) a boring story (d) a road that floods
15. 15.Which of these is a beam bridge? (a) good for short gaps (b) deck hangs from cables (c) pushes out on its ends (d) a curve under the deck
16. 16.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
17. 17.True or false: biogas from waste is a renewable energy source. (a) True (b) False
18. 18.🏋️ Pushing a crate 2 m took 660 J of work. What force was used, in newtons?
19. 19.Which of these uses an arch? (a) a slab over a canal (b) a round palace roof (c) a crane arm (d) an old stone bridge
20. 20.True or false: to skip writing results is poor testing. (a) True (b) False
21. 21.True or false: a tyre with deep treads gives less friction. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) use only paper and tape (b) fit on a school desk (c) spend at most ₹100 (d) hold up 500 g
23. 23.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
24. 24.🔍 Which is the odd one out? (a) a wheel on ball bearings (b) a smooth steel slide (c) chalk on a gym bar (d) powder on a carrom board
25. 25.⚖️ In a class 3 lever, what is in the middle? (a) the fulcrum (b) the effort (c) the load (d) the pulley
26. 26.What does the team leader do? (a) runs the tests (b) cuts and joins parts (c) puts the model together (d) keeps the team on track
27. 27.🔍 Which is the odd one out? (a) a dam (b) a banyan tree (c) a cloud (d) a coral reef
28. 28.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) keeping a simple shape (c) having a wide base (d) using a heavy roof
29. 29.True or false: a lemon squeezer is a class 3 lever (effort in the middle). (a) True (b) False
30. 30.True or false: a spectacle lens needs a transparent material. (a) False (b) True
31. 31.🔍 Which is the odd one out? (a) tie back long hair (b) clamp wood before sawing (c) put tools back after use (d) touch a hot glue tip
32. 32.⚖️ What is the pivot point of a lever called? (a) the effort (b) the axle (c) the fulcrum (d) the load
33. 33.True or false: an igloo uses a dome. (a) False (b) True
34. 34.True or false: to cut a wooden plank, use a spanner. (a) False (b) True
35. 35.⚖️ Along a straight bar, measured from the left end, the effort is at 20 cm, the fulcrum at 40 cm and the load at 30 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
36. 36.🔄 Which design-process step is it to measure its performance? (a) Plan (b) Improve (c) Ask (d) Test
37. 37.📐 On a plan, 1 cm stands for 2 m. A wall is 5 cm long on the plan. How long is the real wall, in metres?
38. 38.⚖️ To lift a heavy rock with a crowbar more easily, push … (a) on the fulcrum (b) far from the fulcrum (c) near the fulcrum (d) on the rock
39. 39.🌉 Which bridge type: “deck hangs from cables”? (a) beam bridge (b) arch bridge (c) suspension bridge
40. 40.True or false: a crane arm uses an arch. (a) False (b) True

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