Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 180 · 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.🧪 Three prototype bridges were tested with the same method. Design A held 190 g, design B held 240 g and design C held 290 g. Which design was the strongest? (a) design B (b) design A (c) design C
2. 2.Which of these is reduce (use less)? (a) reuse gift paper (b) plant in old tyres (c) refill a water bottle (d) switch off unused lights
3. 3.🛠️ People need to talk to someone far away. Which invention helps? (a) a microscope (b) a water filter (c) a tunnel (d) a telephone
4. 4.🏋️ Pushing a crate 8 m took 1920 J of work. What force was used, in newtons?
5. 5.🤝 A team plans for 40 minutes, builds for 25 minutes and then tests for 30 minutes, one after another. How many minutes is that in all?
6. 6.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
7. 7.⚖️ A seesaw balances. Kabir (? N) sits 1 m from the pivot on one side; Arjun (160 N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?
8. 8.🔍 Which is the odd one out? (a) keeping a simple shape (b) using a light roof (c) fitting rubber base pads (d) raising heavy tanks high
9. 9.⚙️ Which simple machine is a truck loading ramp? (a) lever (b) wheel and axle (c) screw (d) inclined plane
10. 10.🔍 Which is the odd one out? (a) a well-bucket rope wheel (b) a window blind cord (c) a nutcracker (d) a crane hook block
11. 11.Which of these is a beam bridge? (a) pushes out on its ends (b) the longest spans of all (c) a log across a stream (d) tall towers hold cables
12. 12.⚖️ What is the pivot point of a lever called? (a) the fulcrum (b) the load (c) the effort (d) the axle
13. 13.True or false: diesel is a renewable energy source. (a) True (b) False
14. 14.True or false: to smooth a rough edge, use pliers. (a) True (b) False
15. 15.🪝 A pulley system lifts a 240 N load with an effort of 80 N. What is its mechanical advantage (MA)?
16. 16.True or false: to measure the same way is poor testing. (a) True (b) False
17. 17.📋 Criteria are … (a) the limits on money (b) the team names (c) goals a design must meet (d) the tools you use
18. 18.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) using a heavy roof (c) leaving out steel bars (d) adding steel to concrete
19. 19.🌉 Which bridge type: “deck hangs from cables”? (a) suspension bridge (b) arch bridge (c) beam bridge
20. 20.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a carpet 7 N, ice 3 N, a glass sheet 4 N, a wooden plank 6 N. How many newtons more were needed on a carpet than on ice?
21. 21.Which job does a chemical engineer do? (a) designs school networks (b) makes medicines in bulk (c) writes app software (d) designs factory machines
22. 22.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
23. 23.💪 Two children push a box to the right, one with 85 N and the other with 5 N. What is the net (total) force on the box, in newtons?
24. 24.⚖️ Which class of lever is a pair of kitchen tongs? (a) class 2 (b) class 1 (c) class 3
25. 25.🏋️ A longer ramp to the same height needs … (a) the same effort (b) no effort (c) more effort (d) less effort
26. 26.🤝 A team of 5 shares 10 equal jobs fairly. Each job takes 2 minutes. How many minutes does each person work?
27. 27.🛠️ Is a mountain made by engineers or found in nature? (a) made by engineers (b) found in nature
28. 28.🧪 The first prototype held 170 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
29. 29.⚖️ A seesaw balances. Zoya (570 N) sits ? m from the pivot on one side; Ravi (190 N) sits 3 m from the pivot on the other side. What is the missing distance in metres?
30. 30.💪 Which force pulls everything towards the Earth? (a) magnetism (b) friction (c) gravity (d) wind
31. 31.🔍 Which is the odd one out? (a) play near a moving drill (b) run while holding tools (c) cut away from your body (d) cut towards your hand
32. 32.True or false: a roof sheet needs a waterproof material. (a) True (b) False
33. 33.🧑‍🔧 Which kind of engineer writes app software? (a) biomedical (b) mechanical (c) chemical (d) computer
34. 34.⚖️ Which class of lever is your forearm? (a) class 3 (b) class 2 (c) class 1
35. 35.⚖️ A seesaw balances. Asha (280 N) sits ? m from the pivot on one side; Arjun (140 N) sits 2 m from the pivot on the other side. What is the missing distance in metres?
36. 36.🦺 In the workshop, is it safe to carry scissors closed? (a) not safe (b) safe
37. 37.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 220 g and design C held 170 g. Which design was the strongest? (a) design C (b) design A (c) design B
38. 38.🌉 What holds up a long beam bridge in the middle? (a) piers (b) balloons (c) cables only (d) nothing
39. 39.🔺 A beam bends under a load. Its top side is … (a) stretched (tension) (b) squeezed (compression) (c) floating (d) not affected
40. 40.🏋️ In which unit is work measured? (a) joule (J) (b) watt hour (c) newton (N) (d) metre (m)

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