Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 982 · 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 design team, who tracks what is used up? (a) builder (b) materials manager (c) team leader (d) tester
2. 2.Which of these is a suspension bridge? (a) a log across a stream (b) good for short gaps (c) pushes out on its ends (d) the longest spans of all
3. 3.True or false: a cloud is found in nature. (a) False (b) True
4. 4.🪢 Compression is a force that … (a) cools things (b) pulls or stretches (c) makes light (d) pushes or squeezes
5. 5.🪢 A concrete slab weighing 5100 N rests evenly on 3 identical pillars. What compression force does each pillar carry, in newtons?
6. 6.🦺 Who should use hot glue guns and power tools in a kids’ project? (a) a stranger (b) the youngest child (c) an adult (d) any child alone
7. 7.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
8. 8.📐 How many millimetres are in 1 centimetre? (a) 5 (b) 1000 (c) 100 (d) 10
9. 9.🤝 In a design team, who keeps the team on track? (a) tester (b) builder (c) team leader (d) materials manager
10. 10.True or false: a beam balance is a class 1 lever (fulcrum in the middle). (a) False (b) True
11. 11.Which of these is caused by magnetic force? (a) a fridge magnet sticks (b) squeezing a lemon (c) brakes stop a bicycle (d) a river flows downhill
12. 12.True or false: to leave tools on the floor is safe. (a) False (b) True
13. 13.📐 A beam is 680 cm long. How long is it in metres? =
14. 14.📐 On a plan, 1 cm stands for 10 m. A real bridge is 30 m long. How long is it on the plan, in centimetres?
15. 15.🔺 Which strong shape does a crane arm use? (a) arch (b) beam (c) triangle (d) dome
16. 16.📐 On a plan, 1 cm stands for 20 m. A real bridge is 60 m long. How long is it on the plan, in centimetres?
17. 17.⚖️ A seesaw balances. Kabir (160 N) sits 2 m from the pivot on one side; Arjun (320 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
18. 18.True or false: a bottle opener is a screw. (a) False (b) True
19. 19.Which of these uses triangles? (a) a slab over a canal (b) an igloo (c) an electric pylon (d) a fort gateway
20. 20.💪 Which force is at work: a river flows downhill? (a) muscular force (b) friction (c) magnetic force (d) gravity
21. 21.🤝 In a design team, who checks the goals are met? (a) materials manager (b) builder (c) recorder (d) tester
22. 22.🧪 What is a prototype? (a) a sales poster (b) an early test model (c) a broken part (d) the final product
23. 23.⚖️ Along a straight bar, measured from the left end, the effort is at 0 cm, the fulcrum at 60 cm and the load at 30 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
24. 24.🏋️ A longer ramp to the same height needs … (a) more effort (b) less effort (c) the same effort (d) no effort
25. 25.🧪 A paper bridge was tested three times. It held 280 g, 230 g and 240 g. What is the mean (average) load it held, in grams?
26. 26.📋 For a model bridge challenge, is “spend at most ₹100” a constraint or a criterion? (a) a constraint (b) a criterion
27. 27.🤝 Why do engineers work in teams? (a) many skills and ideas (b) to finish nothing (c) to work alone (d) to argue more
28. 28.⚙️ Most simple machines make work easier by letting us … (a) make new energy (b) switch off gravity (c) stop all friction (d) use a smaller force
29. 29.⚖️ A lever balances when … (a) turning effects match (b) both weights are equal (c) the bar is short (d) the fulcrum moves
30. 30.🪝 A winch has a wheel of radius 9 cm and an axle of radius 3 cm. What effort on the wheel lifts a 90 N bucket on the axle, in newtons? (ideal)
31. 31.📋 For a model bridge challenge, is “roll at least 2 metres” a constraint or a criterion? (a) a criterion (b) a constraint
32. 32.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 160 g. How many more grams did it hold?
33. 33.🌉 A beam bridge 90 m long rests on the two river banks and on piers in between, making equal spans of 10 m. How many piers are there?
34. 34.🧑‍🔧 Which kind of engineer wires a new building? (a) computer (b) civil (c) electrical (d) mechanical
35. 35.⚖️ A seesaw balances. Meena (170 N) sits ? m from the pivot on one side; Asha (510 N) sits 1 m from the pivot on the other side. What is the missing distance in metres?
36. 36.🏚️ Why is a wide base safer? (a) it is taller (b) it is harder to tip over (c) it is lighter (d) it is colourful
37. 37.True or false: a crane hook block is a wheel and axle. (a) True (b) False
38. 38.What does the builder do? (a) puts the model together (b) keeps the design notes (c) runs the tests (d) shares out the jobs
39. 39.True or false: an aerospace engineer designs school networks. (a) False (b) True
40. 40.🛞 Is friction helpful or a problem here: machine parts heating up? (a) helpful (b) a problem

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