Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 717 · 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.🔢 To follow the engineering design process, which is the LAST step? (a) Test (b) Create (c) Improve (d) Ask
2. 2.⚖️ Which class of lever is a seesaw? (a) class 1 (b) class 2 (c) class 3
3. 3.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 10 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
4. 4.🛠️ Is a banyan tree made by engineers or found in nature? (a) found in nature (b) made by engineers
5. 5.🔢 To follow the engineering design process, which comes first: “Create” or “Ask”? (a) Create (b) Ask
6. 6.💪 Which force is at work: a magnet picks up pins? (a) gravity (b) magnetic force (c) muscular force (d) friction
7. 7.⚙️ Which simple machine is a well-bucket rope wheel? (a) inclined plane (b) wedge (c) wheel and axle (d) pulley
8. 8.True or false: a temple column is in compression (pushed). (a) False (b) True
9. 9.🔍 Which is the odd one out? (a) clamp wood before sawing (b) use a cracked tool (c) put tools back after use (d) cut away from your body
10. 10.⚖️ A lever bar balances. The load is ? N at 30 cm from the fulcrum. The effort is 300 N at 20 cm from the fulcrum on the other side. What is the missing force in newtons?
11. 11.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 4 N, a glass sheet 6 N, a wooden plank 7 N, sandpaper 8 N. Which surface gave the most friction? (a) ice (b) a glass sheet (c) sandpaper (d) a wooden plank
12. 12.True or false: coal is a non-renewable energy source. (a) False (b) True
13. 13.🏋️ Can a simple machine reduce the work done? (a) no, work stays the same (b) yes, always (c) yes, by half (d) only on Mondays
14. 14.📐 A model car is drawn so that 1 cm stands for 20 cm. The car is 2 cm long in the drawing. How long is the real car, in centimetres?
15. 15.Which of these is reduce (use less)? (a) use a jar as a pen stand (b) plant in old tyres (c) buy less packaging (d) give old books away
16. 16.📐 A model car is drawn so that 1 cm stands for 30 cm. The car is 4 cm long in the drawing. How long is the real car, in centimetres?
17. 17.🔧 Which tool would you use to measure an angle? (a) a saw (b) a protractor (c) pliers (d) a hammer
18. 18.🌉 What holds up a long beam bridge in the middle? (a) piers (b) cables only (c) nothing (d) balloons
19. 19.🔍 Which is the odd one out? (a) a nutcracker (b) a jar lid (c) a screw jack (d) a nut and bolt
20. 20.🪢 Tension or compression: a table leg? (a) compression (b) tension
21. 21.♻️ A family used to throw away 10 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 10 weeks?
22. 22.🔧 Which tool would you use to drive in a nail? (a) pliers (b) a hand drill (c) a hammer (d) a protractor
23. 23.🧑‍🔧 Which kind of engineer designs factory machines? (a) chemical (b) biomedical (c) mechanical (d) computer
24. 24.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) raising heavy tanks high (c) adding cross bracing (d) adding steel to concrete
25. 25.🔍 Which is the odd one out? (a) a door stopper (b) a wood screw (c) the tip of a nail (d) an axe blade
26. 26.🌉 A beam bridge 140 m long is split by piers into 7 equal spans. How long is each span, in metres?
27. 27.⚖️ A lever bar balances. The load is 800 N at 40 cm from the fulcrum. The effort is ? N at 80 cm from the fulcrum on the other side. What is the missing force in newtons?
28. 28.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
29. 29.Which of these uses a beam? (a) a curved stone doorway (b) a bicycle frame (c) a slab over a canal (d) a truss bridge side
30. 30.🏋️ A force of 170 N pushes a cart 9 m along the floor. How much work is done, in joules?
31. 31.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to avoid testing (c) to sell them at once (d) to test ideas cheaply
32. 32.True or false: an electrical engineer designs school networks. (a) True (b) False
33. 33.🔺 A flat frame has 12 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
34. 34.Which of these is caused by muscular force? (a) shoes grip the floor (b) a compass needle turns (c) squeezing a lemon (d) a thrown ball comes down
35. 35.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) steel (d) plastic
36. 36.🌉 In a suspension bridge, the main cables are in … (a) tension (b) compression (c) no force (d) friction
37. 37.Which of these is an arch bridge? (a) cables tied down at ends (b) a log across a stream (c) a flat deck on piers (d) pushes out on its ends
38. 38.📋 Criterion: the model bridge must hold at least 400 g. In the test it held 350 g. Does it meet the criterion? (a) Yes (b) No
39. 39.🔺 Which strong shape does a crane arm use? (a) arch (b) triangle (c) beam (d) dome
40. 40.⚖️ Along a straight bar, measured from the left end, the effort is at 0 cm, the fulcrum at 20 cm and the load at 40 cm. Which class of lever is it? (a) class 2 (b) class 3 (c) class 1

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