Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 681 · 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.🏋️ A smooth ramp is 6 m long and rises 3 m. What effort pushes a 1600 N box up it, in newtons? (ideal ramp, no friction)
2. 2.🪝 Fixed or movable pulley: which one makes you pull 2× rope? (a) a fixed pulley (b) a movable pulley
3. 3.🔍 Which is the odd one out? (a) a crane lifting cable (b) a hanging lamp chain (c) a temple column (d) a suspension cable
4. 4.⚖️ Going along a lever from one end to the other, the order is: effort, load, fulcrum. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
5. 5.🔍 Which is the odd one out? (a) making brittle joints (b) using a heavy roof (c) fitting rubber base pads (d) raising heavy tanks high
6. 6.🪝 A wheel and axle is a big wheel fixed to … (a) a sharp wedge (b) a smaller rod (axle) (c) a flat ramp (d) a loose rope
7. 7.💪 A box weighs 140 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
8. 8.True or false: a chisel is a lever. (a) False (b) True
9. 9.True or false: hitting a cricket ball is a pull. (a) True (b) False
10. 10.🛠️ Is a bicycle made by engineers or found in nature? (a) made by engineers (b) found in nature
11. 11.🪝 A winch has a wheel of radius 5 cm and an axle of radius 1 cm. What effort on the wheel lifts a 900 N bucket on the axle, in newtons? (ideal)
12. 12.🔍 Which is the odd one out? (a) a box pushed on carpet (b) sand on a slippery path (c) a rough doormat (d) powder on a carrom board
13. 13.True or false: to use a new load each time is poor testing. (a) False (b) True
14. 14.🔺 Which strong shape does a truss bridge side use? (a) beam (b) dome (c) triangle (d) arch
15. 15.📐 Why do engineers use scale drawings? (a) to save ink only (b) to hide sizes (c) to make them pretty (d) big things fit on paper
16. 16.♻️ Which energy source will never run out? (a) petrol (b) coal (c) diesel (d) sunlight
17. 17.🪝 A pulley system has 3 rope sections holding up the load. To lift the load by 1 m, how many metres of rope must you pull?
18. 18.True or false: a fixed pulley is on a flagpole top. (a) True (b) False
19. 19.True or false: a solar panel helps people reach a top floor fast. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) a playground slide (b) a bottle opener (c) a crowbar (d) a seesaw
21. 21.🏋️ A force of 450 N did 2700 J of work. How many metres did the object move?
22. 22.🏋️ A force of 140 N did 1400 J of work. How many metres did the object move?
23. 23.📋 Criterion: the model bridge must hold at least 300 g. In the test it held 200 g. Does it meet the criterion? (a) Yes (b) No
24. 24.What does the recorder do? (a) keeps the team on track (b) writes down results (c) shares out the jobs (d) collects the supplies
25. 25.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) fitting rubber base pads (c) making brittle joints (d) leaving out steel bars
26. 26.🧱 Which property matters most for a raincoat? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
27. 27.True or false: a computer engineer designs electric motors. (a) False (b) True
28. 28.⚖️ A lever bar balances. The load is 270 N at ? cm from the fulcrum. The effort is 450 N at 30 cm from the fulcrum on the other side. What is the missing distance in centimetres?
29. 29.True or false: a broom when sweeping is a class 1 lever (fulcrum in the middle). (a) True (b) False
30. 30.🪢 Tension or compression: a pillar under a roof? (a) tension (b) compression
31. 31.🧑‍🔧 Which branch of engineering uses engineering to help doctors? (a) biomedical (b) aerospace (c) civil (d) electrical
32. 32.🔍 Which is the odd one out? (a) a playground slide (b) a wheelchair ramp (c) a road up a hill (d) a crane hook block
33. 33.Which job does a computer engineer do? (a) designs aeroplane wings (b) builds rockets (c) designs bicycle gears (d) keeps data safe online
34. 34.⚖️ Along a straight bar, measured from the left end, the effort is at 30 cm, the fulcrum at 70 cm and the load at 50 cm. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
35. 35.True or false: a squeezed spring is in tension (pulled). (a) False (b) True
36. 36.🏋️ A longer ramp to the same height needs … (a) the same effort (b) no effort (c) more effort (d) less effort
37. 37.📋 A design meets every criterion but costs more than the budget. Is it acceptable? (a) only if it is red (b) yes, always (c) no, it breaks a limit (d) yes, it works
38. 38.🤝 A team of 4 shares 12 equal jobs fairly. Each job takes 3 minutes. How many minutes does each person work?
39. 39.True or false: a pair of scissors is a class 2 lever (load in the middle). (a) True (b) False
40. 40.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) wood or plastic (d) copper

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