Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 213 · 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 design-process step is it to measure its performance? (a) Ask (b) Imagine (c) Improve (d) Test
2. 2.🏋️ A machine lifts a load of 280 N when you push with 140 N. What is its mechanical advantage (MA)?
3. 3.🔍 Which is the odd one out? (a) a hanging lamp chain (b) a tent guy rope (c) a tall bridge tower (d) a stretched rubber band
4. 4.Which of these is in compression (pushed)? (a) a suspension cable (b) a temple column (c) a tow rope on a car (d) a swing chain
5. 5.⚖️ A seesaw balances. Kabir (? N) sits 1 m from the pivot on one side; Ravi (130 N) sits 1 m from the pivot on the other side. What is the missing weight in newtons?
6. 6.🤝 In a design team, who cuts and joins parts? (a) materials manager (b) team leader (c) recorder (d) builder
7. 7.True or false: to redesign after testing is the Ask step. (a) True (b) False
8. 8.Which of these is in tension (pulled)? (a) a temple column (b) a crane lifting cable (c) a squeezed spring (d) a bridge pier
9. 9.🔢 To follow the engineering design process, which is the LAST step? (a) Ask (b) Imagine (c) Plan (d) Improve
10. 10.🪝 A pulley system has 1 rope section holding up the load. To lift the load by 2 m, how many metres of rope must you pull?
11. 11.True or false: pushing a trolley is a pull. (a) False (b) True
12. 12.⚖️ Turning effect = force × … (a) colour of bar (b) time taken (c) distance from fulcrum (d) mass of fulcrum
13. 13.📐 On a plan, 1 cm stands for 10 m. A real bridge is 160 m long. How long is it on the plan, in centimetres?
14. 14.True or false: to give kind feedback is good teamwork. (a) False (b) True
15. 15.🪝 A bucket weighing 230 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
16. 16.Which of these needs a heat insulator? (a) an umbrella cover (b) a hair band (c) an oven glove (d) a boat hull
17. 17.⚖️ Which class of lever is a seesaw? (a) class 2 (b) class 1 (c) class 3
18. 18.🛠️ Is a banyan tree made by engineers or found in nature? (a) found in nature (b) made by engineers
19. 19.💪 Two children push a box to the right, one with 85 N and the other with 40 N. What is the net (total) force on the box, in newtons?
20. 20.📐 On a plan, 1 cm stands for 2 m. A wall is 12 cm long on the plan. How long is the real wall, in metres?
21. 21.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they stop shaking (c) they look nice (d) they are cheap
22. 22.True or false: to make a prototype is the Create step. (a) True (b) False
23. 23.🛞 Is friction helpful or a problem here: shoe soles wearing out? (a) a problem (b) helpful
24. 24.Which of these needs a flexible material? (a) a switch contact (b) a boat hull (c) a skipping rope (d) a plug pin
25. 25.True or false: a seesaw is a lever. (a) False (b) True
26. 26.True or false: a civil engineer refines crude oil. (a) True (b) False
27. 27.🪢 Tension or compression: a tow rope on a car? (a) tension (b) compression
28. 28.⚖️ A lever bar balances. The load is 810 N at ? cm from the fulcrum. The effort is 450 N at 90 cm from the fulcrum on the other side. What is the missing distance in centimetres?
29. 29.🪝 Fixed or movable pulley: which one needs effort = load? (a) a movable pulley (b) a fixed pulley
30. 30.True or false: to put tools back after use is safe. (a) True (b) False
31. 31.True or false: “roll at least 2 metres” is a constraint (a limit). (a) False (b) True
32. 32.⚖️ Which class of lever is a broom when sweeping? (a) class 3 (b) class 1 (c) class 2
33. 33.📐 On a plan, 1 cm stands for 5 m. A real bridge is 20 m long. How long is it on the plan, in centimetres?
34. 34.⚖️ A seesaw balances. Zoya (? N) sits 4 m from the pivot on one side; Meena (440 N) sits 3 m from the pivot on the other side. What is the missing weight in newtons?
35. 35.🧪 Three prototype bridges were tested with the same method. Design A held 190 g, design B held 140 g and design C held 240 g. Which design was the weakest? (a) design A (b) design B (c) design C
36. 36.🤝 Is it good or poor teamwork to help a stuck teammate? (a) good teamwork (b) poor teamwork
37. 37.🛞 Rubbing your hands fast makes them … (a) magnetic (b) wet (c) warm (d) cold
38. 38.🪝 A pulley system lifts a 360 N load with an effort of 90 N. What is its mechanical advantage (MA)?
39. 39.⚖️ A lever balances when … (a) the bar is short (b) the fulcrum moves (c) turning effects match (d) both weights are equal
40. 40.True or false: to cut towards your hand is not safe. (a) True (b) False

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