Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 417 · 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: “use only paper and tape” is a criterion (a goal). (a) False (b) True
2. 2.⚖️ Along a straight bar, measured from the left end, the effort is at 10 cm, the fulcrum at 50 cm and the load at 40 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
3. 3.🔍 Which is the odd one out? (a) a swing chain (b) a bridge pier (c) a temple column (d) a stone in an arch
4. 4.🔺 A flat frame has 4 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
5. 5.🪝 Fixed or movable pulley: which one is on a flagpole top? (a) a fixed pulley (b) a movable pulley
6. 6.True or false: a mountain is found in nature. (a) False (b) True
7. 7.True or false: a tent guy rope is in tension (pulled). (a) False (b) True
8. 8.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a wooden plank 3 N, a carpet 7 N, sandpaper 8 N, ice 1 N. How many newtons more were needed on sandpaper than on ice?
9. 9.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) chemical (b) computer (c) civil (d) biomedical
10. 10.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
11. 11.⚖️ A seesaw balances. Asha (390 N) sits 4 m from the pivot on one side; Zoya (520 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
12. 12.🏋️ In which unit is work measured? (a) joule (J) (b) metre (m) (c) watt hour (d) newton (N)
13. 13.🌉 Which bridge type can cross the widest gap in one span? (a) arch bridge (b) log bridge (c) beam bridge (d) suspension bridge
14. 14.📐 On a plan, 1 cm stands for 5 m. A wall is 12 cm long on the plan. How long is the real wall, in metres?
15. 15.🛞 More or less friction: sand on a slippery path? (a) more friction (b) less friction
16. 16.🔢 To follow the engineering design process, which comes first: “Imagine” or “Improve”? (a) Imagine (b) Improve
17. 17.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 1 N, a glass sheet 4 N, a carpet 6 N, sandpaper 10 N. Which surface gave the least friction? (a) a glass sheet (b) ice (c) sandpaper (d) a carpet
18. 18.🦺 In the workshop, is it safe to run while holding tools? (a) not safe (b) safe
19. 19.🪢 Compression is a force that … (a) pulls or stretches (b) pushes or squeezes (c) makes light (d) cools things
20. 20.🛞 More or less friction: powder on a carrom board? (a) less friction (b) more friction
21. 21.🏋️ An 11 kg box is lifted straight up by 4 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
22. 22.Which job does a biomedical engineer do? (a) runs a fertiliser plant (b) designs satellites (c) designs artificial limbs (d) designs a paint factory
23. 23.🪝 A pulley system lifts a 180 N load with an effort of 60 N. What is its mechanical advantage (MA)?
24. 24.True or false: a brick at a wall base is in tension (pulled). (a) False (b) True
25. 25.🏋️ An 8 kg box is lifted straight up by 2 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
26. 26.Which of these needs a waterproof material? (a) a boat hull (b) a yoga mat (c) a skipping rope (d) a plug pin
27. 27.⚙️ Which simple machine is a flagpole rope wheel? (a) lever (b) pulley (c) wedge (d) wheel and axle
28. 28.🔢 To follow the engineering design process, what comes right after “Plan”? (a) Test (b) Create (c) Ask (d) Imagine
29. 29.🪢 Tension is a force that … (a) pushes or squeezes (b) turns things (c) pulls or stretches (d) heats things
30. 30.Which of these is reuse (use again)? (a) print on both sides (b) switch off unused lights (c) refill a water bottle (d) pulp old paper
31. 31.📋 For a model bridge challenge, is “carry 10 coins” a constraint or a criterion? (a) a criterion (b) a constraint
32. 32.Which job is a spirit level for? (a) smooth a rough edge (b) check a shelf is level (c) drive in a nail (d) measure a long length
33. 33.🔧 Which tool would you use to grip and bend wire? (a) pliers (b) a hand drill (c) a tape measure (d) a spanner
34. 34.Which of these makes a building less safe in earthquakes? (a) raising heavy tanks high (b) adding steel to concrete (c) keeping a simple shape (d) using a light roof
35. 35.🔺 Which strong shape does an electric pylon use? (a) arch (b) triangle (c) beam (d) dome
36. 36.⚖️ A seesaw balances. Zoya (? N) sits 2 m from the pivot on one side; Kabir (400 N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?
37. 37.📋 For a model bridge challenge, is “float for 1 minute” a constraint or a criterion? (a) a criterion (b) a constraint
38. 38.🏚️ Three solid model towers are made of the same material. Tower A is 50 cm tall on a 10 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
39. 39.🛠️ People need to go through a mountain. Which invention helps? (a) a microscope (b) a bridge (c) a tunnel (d) a telephone
40. 40.📐 On a plan, 1 cm stands for 5 m. A real bridge is 45 m long. How long is it on the plan, in centimetres?

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