Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 713 · 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 model car is drawn so that 1 cm stands for 40 cm. The car is 9 cm long in the drawing. How long is the real car, in centimetres?
2. 2.🌉 Which bridge type can cross the widest gap in one span? (a) beam bridge (b) arch bridge (c) log bridge (d) suspension bridge
3. 3.True or false: a round palace roof uses a dome. (a) True (b) False
4. 4.📐 On a plan, 1 cm stands for 20 m. A wall is 6 cm long on the plan. How long is the real wall, in metres?
5. 5.🔄 Which design-process step is it to build the model? (a) Create (b) Plan (c) Imagine (d) Ask
6. 6.True or false: to check it against goals is the Ask step. (a) False (b) True
7. 7.True or false: a nutcracker is a wedge. (a) False (b) True
8. 8.🛠️ What does an engineer mainly do? (a) grows crops (b) only paints pictures (c) sells tickets (d) designs useful solutions
9. 9.🔢 To build and test a straw bridge, which is the FIRST step? (a) build it with straws (b) strengthen the weak part (c) read the challenge rules (d) choose and draw one
10. 10.🔺 One side of a straw bridge is a row of 10 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
11. 11.🧱 Which property matters most for a skipping rope? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
12. 12.💪 Which force pulls everything towards the Earth? (a) wind (b) friction (c) magnetism (d) gravity
13. 13.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) on a thin pole (c) low down (d) hanging outside
14. 14.True or false: to hide a failed test is poor testing. (a) False (b) True
15. 15.True or false: powder on a carrom board gives more friction. (a) False (b) True
16. 16.🔍 Which is the odd one out? (a) a well winch handle (b) a water tap handle (c) a steering wheel (d) a window blind cord
17. 17.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 10 cm wide base, tower B is 60 cm tall on a 30 cm base and tower C is 60 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
18. 18.🔺 Which strong shape does a fort gateway use? (a) arch (b) beam (c) triangle (d) dome
19. 19.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
20. 20.True or false: “hold up 500 g” is a criterion (a goal). (a) True (b) False
21. 21.⚖️ A seesaw balances. Ravi (? N) sits 1 m from the pivot on one side; Kabir (130 N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?
22. 22.True or false: “a log across a stream” is a beam bridge. (a) True (b) False
23. 23.🔢 To follow the engineering design process, which comes first: “Ask” or “Plan”? (a) Plan (b) Ask
24. 24.📐 A model car is drawn so that 1 cm stands for 20 cm. The car is 5 cm long in the drawing. How long is the real car, in centimetres?
25. 25.⚖️ A seesaw balances. Arjun (540 N) sits 1 m from the pivot on one side; Asha (? N) sits 3 m from the pivot on the other side. What is the missing weight in newtons?
26. 26.Which of these uses a dome? (a) an igloo (b) a lintel over a door (c) an electric pylon (d) an old stone bridge
27. 27.Which of these is found in nature? (a) a lift (b) a mobile phone (c) a seashell (d) a satellite
28. 28.🛠️ Which of these is a problem an engineer could solve? (a) a lost cricket match (b) a road that floods (c) a sad song (d) a boring story
29. 29.📋 Criterion: the model bridge must hold at least 400 g. In the test it held 400 g. Does it meet the criterion? (a) No (b) Yes
30. 30.🔺 A beam bends under a load. Its top side is … (a) stretched (tension) (b) floating (c) not affected (d) squeezed (compression)
31. 31.🏋️ A smooth ramp is 5 m long and rises 1 m. What effort pushes a 4250 N box up it, in newtons? (ideal ramp, no friction)
32. 32.True or false: to repeat each test is good testing. (a) False (b) True
33. 33.🏋️ A machine lifts a load of 90 N when you push with 30 N. What is its mechanical advantage (MA)?
34. 34.🔄 Is the engineering design process done only once? (a) only for big jobs (b) only on Sundays (c) no, it repeats (d) yes, only once
35. 35.Which of these uses a beam? (a) a roof truss (b) an igloo (c) a planetarium roof (d) a shelf on two brackets
36. 36.🧪 In a fair test, how many things do you change at a time? (a) none (b) all of them (c) two (d) one
37. 37.True or false: a civil engineer designs school networks. (a) False (b) True
38. 38.Which of these uses triangles? (a) an old stone bridge (b) a curved stone doorway (c) a crane arm (d) a plank over a drain
39. 39.🛞 More or less friction: a wheel on ball bearings? (a) less friction (b) more friction
40. 40.⚖️ A seesaw balances. Ravi (510 N) sits 2 m from the pivot on one side; Asha (? N) sits 3 m from the pivot on the other side. What is the missing weight in newtons?

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