Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 640 · 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 need does a microscope meet? (a) reach a top floor fast (b) talk to someone far away (c) see very tiny things (d) make power from sunlight
2. 2.♻️ Reduce, reuse or recycle: print on both sides? (a) recycle (b) reduce (c) reuse
3. 3.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
4. 4.🔄 Which design-process step is it to pick the build order? (a) Create (b) Test (c) Improve (d) Plan
5. 5.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) biomedical (b) computer (c) civil (d) chemical
6. 6.💪 Which force is at work: brakes stop a bicycle? (a) magnetic force (b) muscular force (c) friction (d) gravity
7. 7.True or false: a tow rope on a car is in compression (pushed). (a) True (b) False
8. 8.🪝 A well winch has a handle (wheel) of radius 16 cm turning an axle of radius 2 cm. What is its mechanical advantage (MA)?
9. 9.Which of these is in tension (pulled)? (a) a squeezed spring (b) a stone in an arch (c) a swing chain (d) a temple column
10. 10.Which of these is reduce (use less)? (a) use a jar as a pen stand (b) pulp old paper (c) buy less packaging (d) turn plastic into tiles
11. 11.True or false: a fixed pulley rises with the load. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) a rough doormat (b) chalk on a gym bar (c) a grippy rubber sole (d) oil on a squeaky hinge
13. 13.📋 For a model bridge challenge, is “fit on a school desk” a constraint or a criterion? (a) a constraint (b) a criterion
14. 14.🔢 To follow the engineering design process, which comes first: “Ask” or “Create”? (a) Create (b) Ask
15. 15.🧪 Why repeat a test three times? (a) to get reliable results (b) it looks busy (c) to use more paper (d) the first is wrong
16. 16.🪢 Tension or compression: a tug of war rope? (a) tension (b) compression
17. 17.⚖️ In a class 2 lever, what is in the middle? (a) the axle (b) the effort (c) the load (d) the fulcrum
18. 18.🪝 What does a single fixed pulley change? (a) the colour of rope (b) the size of the load (c) the direction of pull (d) gravity
19. 19.🪝 A winch has a wheel of radius 28 cm and an axle of radius 4 cm. What effort on the wheel lifts a 630 N bucket on the axle, in newtons? (ideal)
20. 20.🪝 A load of 380 N hangs from a pulley system in which 2 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
21. 21.Which of these is caused by gravity? (a) squeezing a lemon (b) pedalling a cycle (c) an apple falls down (d) lifting a school bag
22. 22.🦺 Who should use hot glue guns and power tools in a kids’ project? (a) an adult (b) any child alone (c) the youngest child (d) a stranger
23. 23.True or false: a ceiling fan is made by engineers. (a) False (b) True
24. 24.What does the recorder do? (a) checks the goals are met (b) keeps the team on track (c) writes down results (d) runs the tests
25. 25.⚖️ Which class of lever is a nutcracker? (a) class 2 (b) class 3 (c) class 1
26. 26.💪 Which force is at work: pedalling a cycle? (a) muscular force (b) friction (c) gravity (d) magnetic force
27. 27.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a light roof (c) using a heavy roof (d) building tall and narrow
28. 28.📋 For a model bridge challenge, is “be under 30 cm tall” a constraint or a criterion? (a) a criterion (b) a constraint
29. 29.🔍 Which is the odd one out? (a) a stretched rubber band (b) a hanging lamp chain (c) a swing chain (d) a stone in an arch
30. 30.🌉 Which bridge type can cross the widest gap in one span? (a) beam bridge (b) log bridge (c) suspension bridge (d) arch bridge
31. 31.True or false: a biomedical engineer designs power lines. (a) True (b) False
32. 32.Which of these uses a dome? (a) an igloo (b) a crane arm (c) a shelf on two brackets (d) a plank over a drain
33. 33.📐 How many centimetres are in 1 metre? (a) 1000 (b) 10 (c) 100 (d) 60
34. 34.True or false: a movable pulley halves the effort. (a) True (b) False
35. 35.⚖️ A seesaw balances. Zoya (360 N) sits ? m from the pivot on one side; Asha (480 N) sits 3 m from the pivot on the other side. What is the missing distance in metres?
36. 36.🌉 Which bridge type: “a flat deck on piers”? (a) arch bridge (b) beam bridge (c) suspension bridge
37. 37.🔍 Which is the odd one out? (a) chalk on a gym bar (b) a smooth steel slide (c) oil on a squeaky hinge (d) skating on ice
38. 38.🔍 Which is the odd one out? (a) fit on a school desk (b) spend at most ₹100 (c) finish in 40 minutes (d) hold up 500 g
39. 39.True or false: a fridge helps people store water for summer. (a) True (b) False
40. 40.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a carpet 9 N, sandpaper 11 N, a glass sheet 3 N, a wooden plank 5 N. Which surface gave the least friction? (a) a glass sheet (b) a wooden plank (c) sandpaper (d) a carpet

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