Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 229 · 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.True or false: a mechanical engineer keeps data safe online. (a) False (b) True
2. 2.🪢 Tension or compression: a crane lifting cable? (a) tension (b) compression
3. 3.🛠️ Which of these is a problem an engineer could solve? (a) a lost cricket match (b) a sad song (c) a boring story (d) a road that floods
4. 4.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 1 N, a glass sheet 4 N, a wooden plank 5 N, a carpet 6 N. How many newtons more were needed on a carpet than on ice?
5. 5.What does the tester do? (a) checks the goals are met (b) writes down results (c) shares out the jobs (d) keeps the design notes
6. 6.Which of these needs a flexible material? (a) a tea flask lining (b) a switch contact (c) a car seat belt (d) a cooking pot handle
7. 7.📋 A design meets every criterion but costs more than the budget. Is it acceptable? (a) no, it breaks a limit (b) only if it is red (c) yes, it works (d) yes, always
8. 8.Which of these needs a transparent material? (a) a car seat belt (b) a boat hull (c) a car windscreen (d) a roof sheet
9. 9.🧑‍🔧 Which branch of engineering works on aeroplanes and rockets? (a) civil (b) chemical (c) computer (d) aerospace
10. 10.True or false: pulling up your socks is a pull. (a) True (b) False
11. 11.True or false: using a light roof makes a building safer in earthquakes. (a) True (b) False
12. 12.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 40 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
13. 13.True or false: a dam is found in nature. (a) True (b) False
14. 14.📐 How many centimetres are in 1 metre? (a) 60 (b) 10 (c) 1000 (d) 100
15. 15.🔍 Which is the odd one out? (a) a rainbow (b) a volcano (c) a bridge (d) a seashell
16. 16.🔍 Which is the odd one out? (a) sand on a slippery path (b) a tyre with deep treads (c) a box pushed on carpet (d) a wheel on ball bearings
17. 17.True or false: “carry 10 coins” is a criterion (a goal). (a) False (b) True
18. 18.True or false: a movable pulley is on a flagpole top. (a) False (b) True
19. 19.🔍 Which is the odd one out? (a) test it only once (b) repeat each test (c) skip writing results (d) use a new load each time
20. 20.🏋️ A smooth ramp is 2 m long and rises 1 m. What effort pushes a 1800 N box up it, in newtons? (ideal ramp, no friction)
21. 21.⚖️ Which class of lever is a pair of pliers? (a) class 3 (b) class 2 (c) class 1
22. 22.💪 In a tug of war, one team pulls right with 15 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
23. 23.🪢 Tension or compression: a tent guy rope? (a) compression (b) tension
24. 24.🪝 A well winch has a handle (wheel) of radius 16 cm turning an axle of radius 4 cm. What is its mechanical advantage (MA)?
25. 25.📐 Why do engineers use scale drawings? (a) to save ink only (b) to hide sizes (c) big things fit on paper (d) to make them pretty
26. 26.🔢 To follow the engineering design process, which comes first: “Improve” or “Plan”? (a) Improve (b) Plan
27. 27.🛞 More or less friction: a box pushed on carpet? (a) less friction (b) more friction
28. 28.🪝 A winch has a wheel of radius 25 cm and an axle of radius 5 cm. What effort on the wheel lifts a 350 N bucket on the axle, in newtons? (ideal)
29. 29.True or false: powder on a carrom board gives less friction. (a) True (b) False
30. 30.🏋️ A longer ramp to the same height needs … (a) no effort (b) the same effort (c) less effort (d) more effort
31. 31.🔍 Which is the odd one out? (a) a tow rope on a car (b) a squeezed spring (c) a tent guy rope (d) a swing chain
32. 32.True or false: to guess, do not measure is poor testing. (a) True (b) False
33. 33.📐 A beam is 390 cm long. How long is it in metres? =
34. 34.🌉 In a suspension bridge, the main cables are in … (a) compression (b) tension (c) friction (d) no force
35. 35.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) on the very top (c) low down (d) on a thin pole
36. 36.⚖️ Which class of lever is a pair of scissors? (a) class 2 (b) class 1 (c) class 3
37. 37.🧪 A paper bridge was tested three times. It held 330 g, 270 g and 240 g. What is the mean (average) load it held, in grams?
38. 38.True or false: an aerospace engineer designs factory machines. (a) True (b) False
39. 39.♻️ A project report has 20 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
40. 40.📐 A model car is drawn so that 1 cm stands for 10 cm. The car is 9 cm long in the drawing. How long is the real car, in centimetres?

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