Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 86 · 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 of these is made by engineers? (a) a waterfall (b) a coral reef (c) a banyan tree (d) a bridge
2. 2.⚙️ How many simple machines are there in the usual list? (a) 10 (b) 12 (c) 3 (d) 6
3. 3.📋 For a model bridge challenge, is “lift a cup of water” a constraint or a criterion? (a) a constraint (b) a criterion
4. 4.Which of these is recycle (make new things)? (a) melt cans into new cans (b) use a jar as a pen stand (c) print on both sides (d) plant in old tyres
5. 5.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
6. 6.True or false: a bridge helps people cross a wide river. (a) False (b) True
7. 7.True or false: a movable pulley makes you pull 2× rope. (a) True (b) False
8. 8.🪝 A wheel and axle is a big wheel fixed to … (a) a loose rope (b) a smaller rod (axle) (c) a flat ramp (d) a sharp wedge
9. 9.🔍 Which is the odd one out? (a) spend at most ₹100 (b) lift a cup of water (c) keep ice for 1 hour (d) hold up 500 g
10. 10.♻️ A project report has 64 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
11. 11.🔺 Which strong shape does a planetarium roof use? (a) triangle (b) beam (c) arch (d) dome
12. 12.Which of these happens in the Improve step? (a) try it out (b) make a prototype (c) find the limits (d) make it better, retest
13. 13.True or false: diesel is a renewable energy source. (a) False (b) True
14. 14.♻️ A sustainable design … (a) protects the future (b) wastes water (c) uses the most plastic (d) lasts one day
15. 15.🧑‍🔧 Which branch of engineering uses engineering to help doctors? (a) electrical (b) civil (c) biomedical (d) aerospace
16. 16.Which job does an electrical engineer do? (a) designs factory machines (b) wires a new building (c) builds a website (d) designs aeroplane wings
17. 17.🛞 Rubbing your hands fast makes them … (a) magnetic (b) warm (c) wet (d) cold
18. 18.🤝 Why do engineers work in teams? (a) to work alone (b) to argue more (c) to finish nothing (d) many skills and ideas
19. 19.⚖️ Going along a lever from one end to the other, the order is: load, effort, fulcrum. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
20. 20.🔍 Which is the odd one out? (a) a well-bucket rope wheel (b) a road up a hill (c) a window blind cord (d) a crane hook block
21. 21.🔍 Which is the odd one out? (a) keeping a simple shape (b) raising heavy tanks high (c) adding cross bracing (d) adding steel to concrete
22. 22.Which of these is reuse (use again)? (a) turn plastic into tiles (b) melt cans into new cans (c) buy less packaging (d) use a jar as a pen stand
23. 23.What does the team leader do? (a) checks the goals are met (b) tracks what is used up (c) shares out the jobs (d) cuts and joins parts
24. 24.🏋️ A smooth ramp is 9 m long and rises 3 m. What effort pushes a 2850 N box up it, in newtons? (ideal ramp, no friction)
25. 25.⚙️ Most simple machines make work easier by letting us … (a) switch off gravity (b) stop all friction (c) use a smaller force (d) make new energy
26. 26.📋 Your team’s budget is ₹34. You must buy one roll of tape for ₹5. Straws cost ₹1 each. What is the greatest number of straws you can buy?
27. 27.⚖️ Which class of lever is a pair of scissors? (a) class 2 (b) class 3 (c) class 1
28. 28.🤝 Is it good or poor teamwork to laugh at ideas? (a) good teamwork (b) poor teamwork
29. 29.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
30. 30.⚖️ A seesaw balances. Meena (150 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?
31. 31.What does the builder do? (a) runs the tests (b) writes down results (c) puts the model together (d) shares out the jobs
32. 32.🔍 Which is the odd one out? (a) cotton cloth (b) iron (c) rubber (d) clay pottery
33. 33.Which of these uses a beam? (a) a plank over a drain (b) an old stone bridge (c) a round palace roof (d) a crane arm
34. 34.🤝 In a design team, who keeps the team on track? (a) tester (b) materials manager (c) builder (d) team leader
35. 35.⚖️ A seesaw balances. Asha (340 N) sits ? m from the pivot on one side; Zoya (680 N) sits 2 m from the pivot on the other side. What is the missing distance in metres?
36. 36.🔍 Which is the odd one out? (a) a well winch handle (b) a wood screw (c) a screw jack (d) a nut and bolt
37. 37.True or false: to use the same load is poor testing. (a) False (b) True
38. 38.🌉 A beam bridge is 40 m long. Piers split it into equal spans of 20 m. How many spans are there?
39. 39.⚖️ A lever bar balances. The load is ? N at 20 cm from the fulcrum. The effort is 120 N at 100 cm from the fulcrum on the other side. What is the missing force in newtons?
40. 40.True or false: a crane lifting cable is in compression (pushed). (a) True (b) False

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