Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 650 · 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 class of lever is a pair of tweezers? (a) class 2 (b) class 3 (c) class 1
2. 2.True or false: a pillar under a roof is in tension (pulled). (a) False (b) True
3. 3.⚙️ How many simple machines are there in the usual list? (a) 6 (b) 12 (c) 3 (d) 10
4. 4.Which of these is an inclined plane? (a) a seesaw (b) an axe blade (c) a crane hook block (d) a playground slide
5. 5.Which job does a civil engineer do? (a) designs a metro tunnel (b) designs hearing aids (c) plans a space mission (d) designs school networks
6. 6.Which of these happens in the Create step? (a) redesign after testing (b) think of wild ideas (c) make it better, retest (d) follow the plan to build
7. 7.🤝 In a design team, who shares out the jobs? (a) tester (b) builder (c) team leader (d) materials manager
8. 8.🤝 Is it good or poor teamwork to own up to a mistake? (a) good teamwork (b) poor teamwork
9. 9.True or false: the tip of a nail is a pulley. (a) True (b) False
10. 10.🤝 In a design team, who keeps the design notes? (a) materials manager (b) recorder (c) team leader (d) tester
11. 11.📐 Why do engineers use scale drawings? (a) to save ink only (b) to hide sizes (c) big things fit on paper (d) to make them pretty
12. 12.🔢 To follow the engineering design process, what comes right after “Test”? (a) Plan (b) Create (c) Imagine (d) Improve
13. 13.True or false: plucking a mango is a push. (a) True (b) False
14. 14.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: sandpaper 8 N, ice 1 N, a glass sheet 3 N, a wooden plank 6 N. Which surface gave the least friction? (a) a glass sheet (b) sandpaper (c) a wooden plank (d) ice
15. 15.True or false: a lift helps people reach a top floor fast. (a) False (b) True
16. 16.⚖️ A seesaw balances. Kabir (150 N) sits ? m from the pivot on one side; Zoya (150 N) sits 1 m from the pivot on the other side. What is the missing distance in metres?
17. 17.🔍 Which is the odd one out? (a) steel (b) copper (c) graphite (d) cotton cloth
18. 18.🏋️ A 17 kg box is lifted straight up by 4 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
19. 19.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
20. 20.🔄 Which design-process step is it to redesign after testing? (a) Test (b) Ask (c) Improve (d) Create
21. 21.🪢 Tension is a force that … (a) heats things (b) turns things (c) pushes or squeezes (d) pulls or stretches
22. 22.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) False (b) True
23. 23.🔍 Which is the odd one out? (a) keeping a simple shape (b) fitting rubber base pads (c) adding steel to concrete (d) using a heavy roof
24. 24.What does the builder do? (a) cuts and joins parts (b) runs the tests (c) tracks what is used up (d) keeps the design notes
25. 25.🔍 Which is the odd one out? (a) fit on a school desk (b) be under 30 cm tall (c) roll at least 2 metres (d) use only paper and tape
26. 26.🌉 A beam bridge is 495 m long. Piers split it into equal spans of 45 m. How many spans are there?
27. 27.🔢 To follow the engineering design process, what comes right after “Imagine”? (a) Test (b) Plan (c) Create (d) Improve
28. 28.🏋️ A machine lifts a load of 330 N when you push with 110 N. What is its mechanical advantage (MA)?
29. 29.📋 Your team’s budget is ₹36. You must buy one roll of tape for ₹10. Straws cost ₹1 each. What is the greatest number of straws you can buy?
30. 30.📋 Constraint: the tower must be no taller than 40 cm. The team’s tower is 38 cm tall. Is it within the constraint? (a) No (b) Yes
31. 31.🔍 Which is the odd one out? (a) hide a failed test (b) use the same load (c) skip writing results (d) change lots at once
32. 32.Which of these happens in the Test step? (a) make it better, retest (b) try it out (c) build the model (d) brainstorm many ideas
33. 33.⚖️ A seesaw balances. Asha (300 N) sits 1 m from the pivot on one side; Ravi (150 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
34. 34.Which of these happens in the Imagine step? (a) measure its performance (b) fix the weak part (c) make a prototype (d) brainstorm many ideas
35. 35.True or false: the tip of a nail is a wedge. (a) False (b) True
36. 36.⚖️ A seesaw balances. Asha (240 N) sits ? m from the pivot on one side; Meena (120 N) sits 2 m from the pivot on the other side. What is the missing distance in metres?
37. 37.True or false: to measure an angle, use a tape measure. (a) False (b) True
38. 38.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?
39. 39.🪝 A bucket weighing 450 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
40. 40.🦺 Who should use hot glue guns and power tools in a kids’ project? (a) a stranger (b) an adult (c) any child alone (d) the youngest child

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