Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 440 · 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.📋 Your team’s budget is ₹40. You must buy one roll of tape for ₹15. Straws cost ₹1 each. What is the greatest number of straws you can buy?
2. 2.🛞 More or less friction: chalk on a gym bar? (a) less friction (b) more friction
3. 3.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
4. 4.🔺 How do engineers stop a square frame from wobbling? (a) add a diagonal brace (b) make it bigger (c) take off a side (d) paint it
5. 5.🏋️ A force of 200 N did 200 J of work. How many metres did the object move?
6. 6.True or false: to try it out is the Test step. (a) False (b) True
7. 7.⚖️ A lever bar balances. The load is 640 N at 20 cm from the fulcrum. The effort is ? N at 80 cm from the fulcrum on the other side. What is the missing force in newtons?
8. 8.📋 Criterion: the model bridge must hold at least 500 g. In the test it held 650 g. Does it meet the criterion? (a) No (b) Yes
9. 9.True or false: “use only paper and tape” is a criterion (a goal). (a) True (b) False
10. 10.🏋️ An 11 kg box is lifted straight up by 1 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
11. 11.🔧 Which tool would you use to measure a long length? (a) a spirit level (b) a hammer (c) a tape measure (d) a saw
12. 12.⚙️ How many simple machines are there in the usual list? (a) 10 (b) 6 (c) 3 (d) 12
13. 13.⚖️ A lever bar balances. The load is ? N at 40 cm from the fulcrum. The effort is 280 N at 100 cm from the fulcrum on the other side. What is the missing force in newtons?
14. 14.🧑‍🔧 Which kind of engineer refines crude oil? (a) electrical (b) chemical (c) aerospace (d) civil
15. 15.🤝 How do engineers share a design with others? (a) only talking fast (b) secret notes (c) clear labelled sketches (d) no drawings at all
16. 16.Which of these is a pulley? (a) a playground slide (b) a round doorknob (c) a door stopper (d) a window blind cord
17. 17.True or false: to hide a failed test is poor testing. (a) False (b) True
18. 18.🤝 A team of 4 shares 12 equal jobs fairly. Each job takes 3 minutes. How many minutes does each person work?
19. 19.🪢 A sign weighing 100 N hangs from 5 identical vertical ropes that share the load equally. What is the tension in each rope, in newtons?
20. 20.True or false: ocean wave energy is a non-renewable energy source. (a) False (b) True
21. 21.🦺 In the workshop, is it safe to cut towards your hand? (a) not safe (b) safe
22. 22.⚖️ Along a straight bar, measured from the left end, the effort is at 30 cm, the fulcrum at 50 cm and the load at 60 cm. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
23. 23.Which of these is a wedge? (a) a chisel (b) a nut and bolt (c) a seesaw (d) a crane hook block
24. 24.🔍 Which is the odd one out? (a) a well-bucket rope wheel (b) a nutcracker (c) a crowbar (d) a bottle opener
25. 25.🧑‍🔧 Which kind of engineer designs hearing aids? (a) electrical (b) biomedical (c) computer (d) mechanical
26. 26.🪢 A beam rests on two supports and is pressed down in the middle. Its bottom edge is … (a) not affected (b) squeezed (compression) (c) stretched (tension) (d) twisted
27. 27.⚖️ A lever bar balances. The load is 240 N at 30 cm from the fulcrum. The effort is 180 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
28. 28.Which of these is a lever? (a) a bottle cap (b) a wood screw (c) a nutcracker (d) a door stopper
29. 29.🌉 A beam bridge is 330 m long. Piers split it into equal spans of 30 m. How many spans are there?
30. 30.🧪 Why do engineers make prototypes? (a) to avoid testing (b) to test ideas cheaply (c) to sell them at once (d) to decorate a room
31. 31.🧪 In a fair test, how many things do you change at a time? (a) none (b) two (c) one (d) all of them
32. 32.📋 For a model bridge challenge, is “fit on a school desk” a constraint or a criterion? (a) a constraint (b) a criterion
33. 33.⚙️ Which simple machine is a road up a hill? (a) wheel and axle (b) wedge (c) pulley (d) inclined plane
34. 34.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they look nice (c) they stop shaking (d) they are cheap
35. 35.🔢 To follow the engineering design process, which comes first: “Imagine” or “Create”? (a) Imagine (b) Create
36. 36.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
37. 37.🏋️ A force of 90 N did 450 J of work. How many metres did the object move?
38. 38.True or false: a round palace roof uses a beam. (a) False (b) True
39. 39.🧱 Which property matters most for a roof sheet? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
40. 40.🔍 Which is the odd one out? (a) a temple column (b) a pillar under a roof (c) a swing chain (d) a bridge pier

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