Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 692 · 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.💪 In a tug of war, one team pulls right with 65 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
2. 2.♻️ Reduce, reuse or recycle: reuse gift paper? (a) reduce (b) recycle (c) reuse
3. 3.True or false: “spend at most ₹100” is a constraint (a limit). (a) False (b) True
4. 4.What does the team leader do? (a) shares out the jobs (b) keeps the design notes (c) puts the model together (d) runs the tests
5. 5.🪢 Tension is a force that … (a) heats things (b) turns things (c) pulls or stretches (d) pushes or squeezes
6. 6.⚖️ Going along a lever from one end to the other, the order is: load, fulcrum, effort. Which class of lever is it? (a) class 2 (b) class 3 (c) class 1
7. 7.True or false: a tug of war is a pull. (a) False (b) True
8. 8.🔍 Which is the odd one out? (a) test it only once (b) measure the same way (c) use the same load (d) record every result
9. 9.🔧 Which tool would you use to cut a wooden plank? (a) a protractor (b) a saw (c) sandpaper (d) a spanner
10. 10.True or false: a nut and bolt is a pulley. (a) True (b) False
11. 11.📋 A design meets every criterion but costs more than the budget. Is it acceptable? (a) only if it is red (b) yes, always (c) yes, it works (d) no, it breaks a limit
12. 12.🌉 Which bridge type: “tall towers hold cables”? (a) arch bridge (b) beam bridge (c) suspension bridge
13. 13.🏋️ A machine lifts a load of 80 N when you push with 40 N. What is its mechanical advantage (MA)?
14. 14.True or false: to ignore the team plan is good teamwork. (a) True (b) False
15. 15.🤝 Why do engineers work in teams? (a) many skills and ideas (b) to work alone (c) to finish nothing (d) to argue more
16. 16.Which of these is in tension (pulled)? (a) a swing chain (b) a stone in an arch (c) a bridge pier (d) a squeezed spring
17. 17.🤝 In a design team, who shares out the jobs? (a) recorder (b) tester (c) team leader (d) builder
18. 18.🔄 Which design-process step is it to redesign after testing? (a) Imagine (b) Create (c) Plan (d) Improve
19. 19.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 160 g. How many more grams did it hold?
20. 20.💪 Which force is at work: a rolling ball slows? (a) magnetic force (b) gravity (c) friction (d) muscular force
21. 21.📐 On a plan, 1 cm stands for 2 m. A real bridge is 40 m long. How long is it on the plan, in centimetres?
22. 22.🔧 Which tool would you use to measure a long length? (a) a saw (b) a hand drill (c) a tape measure (d) a protractor
23. 23.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
24. 24.True or false: “carry 10 coins” is a constraint (a limit). (a) True (b) False
25. 25.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
26. 26.True or false: oil on a squeaky hinge gives more friction. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) a tall bridge tower (b) a temple column (c) a bridge pier (d) a stretched rubber band
28. 28.🏋️ Pushing a crate 7 m took 2660 J of work. What force was used, in newtons?
29. 29.🔍 Which is the odd one out? (a) steel (b) plastic (c) aluminium (d) graphite
30. 30.⚖️ A seesaw balances. Kabir (? N) sits 3 m from the pivot on one side; Zoya (420 N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?
31. 31.What does the tester do? (a) tracks what is used up (b) puts the model together (c) runs the tests (d) keeps the team on track
32. 32.⚖️ What is the pivot point of a lever called? (a) the effort (b) the axle (c) the load (d) the fulcrum
33. 33.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 10 cm wide base, tower B is 10 cm tall on a 10 cm base and tower C is 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
34. 34.True or false: to record every result is good testing. (a) False (b) True
35. 35.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 190 g and design C held 140 g. Which design was the weakest? (a) design B (b) design C (c) design A
36. 36.Which of these is a wedge? (a) a door stopper (b) a wood screw (c) a nutcracker (d) a flagpole rope wheel
37. 37.True or false: a temple column is in compression (pushed). (a) True (b) False
38. 38.🔄 In which step do engineers draw a labelled diagram? (a) Improve (b) Test (c) Plan (d) Ask
39. 39.🤝 How do engineers share a design with others? (a) no drawings at all (b) only talking fast (c) clear labelled sketches (d) secret notes
40. 40.🔺 A flat frame has 6 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?

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