Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 784 · 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 lever bar balances. The load is 40 N at 10 cm from the fulcrum. The effort is ? N at 20 cm from the fulcrum on the other side. What is the missing force in newtons?
2. 2.🛠️ Is a bridge made by engineers or found in nature? (a) made by engineers (b) found in nature
3. 3.🪝 Fixed or movable pulley: which one halves the effort? (a) a fixed pulley (b) a movable pulley
4. 4.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 260 g. How many more grams did it hold?
5. 5.📋 A constraint is … (a) a kind of glue (b) a goal for success (c) a limit you must keep to (d) a final test
6. 6.🔄 What is the FIRST step of the engineering design process? (a) Ask (b) Create (c) Test (d) Improve
7. 7.⚙️ Which simple machine is a nutcracker? (a) pulley (b) wedge (c) lever (d) inclined plane
8. 8.🔍 Which is the odd one out? (a) change only one thing (b) guess, do not measure (c) hide a failed test (d) skip writing results
9. 9.🪢 Tension is a force that … (a) pulls or stretches (b) turns things (c) heats things (d) pushes or squeezes
10. 10.⚖️ In a class 1 lever, what is in the middle? (a) nothing (b) the effort (c) the fulcrum (d) the load
11. 11.♻️ Which is the BEST order to think about waste? (a) reduce, reuse, recycle (b) reuse, recycle, reduce (c) recycle, reuse, reduce (d) burn, bury, forget
12. 12.🔍 Which is the odd one out? (a) a round doorknob (b) a well winch handle (c) a steering wheel (d) a flagpole rope wheel
13. 13.⚖️ Turning effect = force × … (a) mass of fulcrum (b) colour of bar (c) distance from fulcrum (d) time taken
14. 14.🔍 Which is the odd one out? (a) a screw jack (b) a wood screw (c) a steering wheel (d) a jar lid
15. 15.True or false: a hair band needs a flexible material. (a) False (b) True
16. 16.⚖️ A seesaw balances. Kabir (? N) sits 2 m from the pivot on one side; Meena (220 N) sits 4 m from the pivot on the other side. What is the missing weight in newtons?
17. 17.🧪 Three prototype bridges were tested with the same method. Design A held 320 g, design B held 270 g and design C held 220 g. Which design was the strongest? (a) design B (b) design C (c) design A
18. 18.🔄 Which design-process step is it to follow the plan to build? (a) Test (b) Create (c) Ask (d) Imagine
19. 19.♻️ Is sunlight a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
20. 20.♻️ A project report has 68 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
21. 21.📐 Why do engineers use scale drawings? (a) to make them pretty (b) to hide sizes (c) to save ink only (d) big things fit on paper
22. 22.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
23. 23.🔍 Which is the odd one out? (a) a dam (b) a coral reef (c) a cloud (d) a volcano
24. 24.True or false: a movable pulley halves the effort. (a) False (b) True
25. 25.🌉 Which bridge type: “the simplest bridge”? (a) beam bridge (b) arch bridge (c) suspension bridge
26. 26.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a glass sheet 2 N, a wooden plank 3 N, a carpet 7 N, sandpaper 11 N. How many newtons more were needed on sandpaper than on a glass sheet?
27. 27.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) iron (d) dry wood
28. 28.Which job does a mechanical engineer do? (a) designs artificial limbs (b) keeps data safe online (c) designs electric motors (d) designs car engines
29. 29.📋 For a model bridge challenge, is “use only paper and tape” a constraint or a criterion? (a) a constraint (b) a criterion
30. 30.Which of these is made by engineers? (a) a volcano (b) a banyan tree (c) a railway track (d) a coral reef
31. 31.🪝 A pulley system has 4 rope sections holding up the load. To lift the load by 6 m, how many metres of rope must you pull?
32. 32.Which of these needs a transparent material? (a) a hair band (b) a raincoat (c) a car windscreen (d) a roof sheet
33. 33.🔺 How do engineers stop a square frame from wobbling? (a) take off a side (b) add a diagonal brace (c) make it bigger (d) paint it
34. 34.Which of these happens in the Test step? (a) follow the plan to build (b) define the problem (c) measure its performance (d) dream up possible fixes
35. 35.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
36. 36.🛞 Which surface gives the MOST friction to a sliding block? (a) glass (b) polished marble (c) sandpaper (d) ice
37. 37.Which job is a tape measure for? (a) measure a long length (b) make a hole in wood (c) drive in a nail (d) tighten a nut
38. 38.Which need does a fridge meet? (a) keep food fresh longer (b) reach a top floor fast (c) store water for summer (d) carry many people far
39. 39.True or false: to skip writing results is good testing. (a) True (b) False
40. 40.Which of these is a suspension bridge? (a) a curve under the deck (b) a flat deck on piers (c) a log across a stream (d) cables tied down at ends

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