Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 354 · 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.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a glass sheet 1 N, a wooden plank 4 N, a carpet 7 N, sandpaper 11 N. Which surface gave the least friction? (a) sandpaper (b) a glass sheet (c) a carpet (d) a wooden plank
2. 2.🔍 Which is the odd one out? (a) a crane lifting cable (b) a tow rope on a car (c) a squeezed spring (d) a stretched rubber band
3. 3.Which of these is a suspension bridge? (a) stones squeezed together (b) the longest spans of all (c) a curve under the deck (d) pushes out on its ends
4. 4.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
5. 5.🔍 Which is the odd one out? (a) a table leg (b) a suspension cable (c) a bridge pier (d) a squeezed spring
6. 6.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
7. 7.📐 How many metres are in 1 kilometre? (a) 10 (b) 1000 (c) 10000 (d) 100
8. 8.📋 Constraint: the tower must be no taller than 30 cm. The team’s tower is 28 cm tall. Is it within the constraint? (a) No (b) Yes
9. 9.Which of these is caused by gravity? (a) a compass needle turns (b) rain falls to the ground (c) a fridge magnet sticks (d) a rolling ball slows
10. 10.True or false: “the simplest bridge” is an arch bridge. (a) False (b) True
11. 11.⚖️ Going along a lever from one end to the other, the order is: fulcrum, load, effort. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
12. 12.Which of these is found in nature? (a) a waterfall (b) a lift (c) a bridge (d) a water filter
13. 13.🌉 A beam bridge 405 m long is split by piers into 9 equal spans. How long is each span, in metres?
14. 14.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) on the very top (c) on a thin pole (d) low down
15. 15.🌉 A beam bridge 350 m long is split by piers into 10 equal spans. How long is each span, in metres?
16. 16.🔍 Which is the odd one out? (a) a bicycle (b) a lift (c) a bridge (d) a banyan tree
17. 17.🪝 A pulley system lifts a 540 N load with an effort of 270 N. What is its mechanical advantage (MA)?
18. 18.🔄 Which design-process step is it to make it better, retest? (a) Ask (b) Plan (c) Test (d) Improve
19. 19.Which job is a tape measure for? (a) measure an angle (b) tighten a nut (c) make a hole in wood (d) measure a long length
20. 20.📐 On a plan, 1 cm stands for 20 m. A real bridge is 320 m long. How long is it on the plan, in centimetres?
21. 21.⚖️ A seesaw balances. Asha (? N) sits 3 m from the pivot on one side; Meena (390 N) sits 4 m from the pivot on the other side. What is the missing weight in newtons?
22. 22.🔢 To follow the engineering design process, which comes first: “Imagine” or “Test”? (a) Test (b) Imagine
23. 23.🧑‍🔧 Which branch of engineering uses engineering to help doctors? (a) biomedical (b) electrical (c) civil (d) aerospace
24. 24.♻️ Is diesel a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
25. 25.🔺 How do engineers stop a square frame from wobbling? (a) take off a side (b) paint it (c) make it bigger (d) add a diagonal brace
26. 26.🛞 Is friction helpful or a problem here: brakes stopping a cycle? (a) a problem (b) helpful
27. 27.🪢 Tension is a force that … (a) turns things (b) pulls or stretches (c) heats things (d) pushes or squeezes
28. 28.♻️ Is biogas from waste a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
29. 29.🔍 Which is the odd one out? (a) a mountain (b) a river (c) a lift (d) a seashell
30. 30.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a wooden plank 5 N, a carpet 9 N, sandpaper 13 N, ice 4 N. How many newtons more were needed on sandpaper than on ice?
31. 31.True or false: a roof sheet needs a waterproof material. (a) False (b) True
32. 32.🤝 In a design team, who puts the model together? (a) tester (b) team leader (c) materials manager (d) builder
33. 33.🏋️ A 4 kg box is lifted straight up by 2 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
34. 34.🪝 A bucket weighing 390 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
35. 35.📋 A constraint is … (a) a kind of glue (b) a final test (c) a goal for success (d) a limit you must keep to
36. 36.⚖️ Going along a lever from one end to the other, the order is: load, effort, fulcrum. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
37. 37.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) plastic (d) steel
38. 38.🛠️ What does an engineer mainly do? (a) only paints pictures (b) designs useful solutions (c) grows crops (d) sells tickets
39. 39.🔍 Which is the odd one out? (a) carry scissors closed (b) put tools back after use (c) touch a hot glue tip (d) clamp wood before sawing
40. 40.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 40 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C

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