Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 975 · 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 simple machine is a seesaw? (a) pulley (b) inclined plane (c) wheel and axle (d) lever
2. 2.🪢 Tension or compression: a tow rope on a car? (a) compression (b) tension
3. 3.⚖️ Along a straight bar, measured from the left end, the effort is at 30 cm, the fulcrum at 20 cm and the load at 10 cm. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
4. 4.🏋️ A smooth ramp is 3 m long and rises 1 m. What effort pushes a 2850 N box up it, in newtons? (ideal ramp, no friction)
5. 5.🧑‍🔧 Which kind of engineer plans a dam? (a) aerospace (b) computer (c) electrical (d) civil
6. 6.🔄 Is the engineering design process done only once? (a) yes, only once (b) only for big jobs (c) only on Sundays (d) no, it repeats
7. 7.Which job is sandpaper for? (a) cut a wooden plank (b) measure a long length (c) grip and bend wire (d) smooth a rough edge
8. 8.🪝 A winch has a wheel of radius 9 cm and an axle of radius 3 cm. What effort on the wheel lifts a 60 N bucket on the axle, in newtons? (ideal)
9. 9.True or false: natural gas is a non-renewable energy source. (a) True (b) False
10. 10.🪝 Fixed or movable pulley: which one halves the effort? (a) a fixed pulley (b) a movable pulley
11. 11.🤝 In a design team, who cuts and joins parts? (a) tester (b) builder (c) team leader (d) materials manager
12. 12.⚖️ A seesaw balances. Ravi (260 N) sits 1 m from the pivot on one side; Kabir (? N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?
13. 13.Which of these uses an arch? (a) a slab over a canal (b) an old stone bridge (c) a shelf on two brackets (d) a bicycle frame
14. 14.🤝 In a design team, who keeps the team on track? (a) team leader (b) recorder (c) tester (d) materials manager
15. 15.🧑‍🔧 Which branch of engineering works on aeroplanes and rockets? (a) computer (b) civil (c) aerospace (d) chemical
16. 16.🤝 Is it good or poor teamwork to talk over others? (a) poor teamwork (b) good teamwork
17. 17.🪝 A load of 120 N hangs from a pulley system in which 2 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
18. 18.True or false: coal is a renewable energy source. (a) True (b) False
19. 19.⚖️ A seesaw balances. Zoya (440 N) sits ? m from the pivot on one side; Arjun (110 N) sits 4 m from the pivot on the other side. What is the missing distance in metres?
20. 20.Which job does a computer engineer do? (a) plans a space mission (b) designs power lines (c) designs knee implants (d) builds a website
21. 21.🔺 A beam bends under a load. Its top side is … (a) stretched (tension) (b) squeezed (compression) (c) not affected (d) floating
22. 22.🔍 Which is the odd one out? (a) a claw hammer on a nail (b) a crowbar (c) a nutcracker (d) a crane hook block
23. 23.🔍 Which is the odd one out? (a) a squeezed spring (b) a tug of war rope (c) a bridge pier (d) a stone in an arch
24. 24.📋 For a model bridge challenge, is “carry 10 coins” a constraint or a criterion? (a) a criterion (b) a constraint
25. 25.Which of these is reduce (use less)? (a) switch off unused lights (b) give old books away (c) use a jar as a pen stand (d) turn plastic into tiles
26. 26.🔺 Which strong shape does an old stone bridge use? (a) triangle (b) dome (c) beam (d) arch
27. 27.🦺 In the workshop, is it safe to clamp wood before sawing? (a) safe (b) not safe
28. 28.Which need does a dam meet? (a) store water for summer (b) make water safe to drink (c) carry many people far (d) go through a mountain
29. 29.🔍 Which is the odd one out? (a) cotton cloth (b) iron (c) rubber (d) glass
30. 30.⚖️ A seesaw balances. Kabir (360 N) sits ? m from the pivot on one side; Arjun (180 N) sits 2 m from the pivot on the other side. What is the missing distance in metres?
31. 31.True or false: a steering wheel is a wedge. (a) True (b) False
32. 32.🧪 A paper bridge was tested three times. It held 200 g, 130 g and 210 g. What is the mean (average) load it held, in grams?
33. 33.True or false: a movable pulley needs effort = load. (a) True (b) False
34. 34.True or false: a biomedical engineer builds hospital scanners. (a) False (b) True
35. 35.🏋️ Mechanical advantage (MA) = … (a) effort ÷ load (b) load + effort (c) load × effort (d) load ÷ effort
36. 36.🔍 Which is the odd one out? (a) a water filter (b) a ceiling fan (c) a satellite (d) a seashell
37. 37.Which of these uses triangles? (a) a fort gateway (b) a roof truss (c) a lintel over a door (d) an old stone bridge
38. 38.True or false: a suspension cable is in tension (pulled). (a) True (b) False
39. 39.♻️ A sustainable design … (a) lasts one day (b) uses the most plastic (c) wastes water (d) protects the future
40. 40.🔄 Which design-process step is it to build the model? (a) Improve (b) Create (c) Ask (d) Plan

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