Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 780 · 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.🛞 More or less friction: oil on a squeaky hinge? (a) less friction (b) more friction
2. 2.True or false: “the simplest bridge” is a suspension bridge. (a) False (b) True
3. 3.⚙️ How many simple machines are there in the usual list? (a) 12 (b) 6 (c) 3 (d) 10
4. 4.🌉 Which bridge type: “a curve under the deck”? (a) beam bridge (b) suspension bridge (c) arch bridge
5. 5.📐 On a plan, 1 cm stands for 10 m. A real bridge is 30 m long. How long is it on the plan, in centimetres?
6. 6.⚖️ A lever bar balances. The load is 360 N at ? cm from the fulcrum. The effort is 90 N at 40 cm from the fulcrum on the other side. What is the missing distance in centimetres?
7. 7.🌉 A beam bridge 500 m long rests on the two river banks and on piers in between, making equal spans of 50 m. How many piers are there?
8. 8.⚖️ Along a straight bar, measured from the left end, the effort is at 0 cm, the fulcrum at 30 cm and the load at 70 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
9. 9.Which of these happens in the Imagine step? (a) redesign after testing (b) dream up possible fixes (c) define the problem (d) pick the build order
10. 10.🧪 What is a prototype? (a) the final product (b) a sales poster (c) a broken part (d) an early test model
11. 11.What does the builder do? (a) checks the goals are met (b) runs the tests (c) cuts and joins parts (d) keeps the team on track
12. 12.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) transparent (c) heat insulator (d) flexible
13. 13.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
14. 14.⚙️ Which simple machine is a chisel? (a) pulley (b) wedge (c) inclined plane (d) wheel and axle
15. 15.True or false: to fix the weak part is the Test step. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) touch a hot glue tip (b) tie back long hair (c) cut away from your body (d) put tools back after use
17. 17.📋 For a model bridge challenge, is “fit on a school desk” a constraint or a criterion? (a) a criterion (b) a constraint
18. 18.🛠️ Is a mobile phone made by engineers or found in nature? (a) found in nature (b) made by engineers
19. 19.🏋️ Pushing a crate 9 m took 180 J of work. What force was used, in newtons?
20. 20.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) steel (d) plastic
21. 21.🔧 Which tool would you use to turn a screw? (a) a screwdriver (b) a spanner (c) a protractor (d) a hand drill
22. 22.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
23. 23.🏋️ A machine lifts a load of 750 N when you push with 150 N. What is its mechanical advantage (MA)?
24. 24.🔺 Which strong shape does a planetarium roof use? (a) arch (b) triangle (c) dome (d) beam
25. 25.🔍 Which is the odd one out? (a) oil on a squeaky hinge (b) powder on a carrom board (c) a smooth steel slide (d) a tyre with deep treads
26. 26.🪢 A concrete slab weighing 200 N rests evenly on 2 identical pillars. What compression force does each pillar carry, in newtons?
27. 27.🔺 Why can an arch carry heavy loads? (a) it is very light (b) it works in compression (c) it is hollow (d) it bends easily
28. 28.⚖️ A lever balances when … (a) the fulcrum moves (b) turning effects match (c) both weights are equal (d) the bar is short
29. 29.True or false: to make a hole in wood, use a hand drill. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) hold up 500 g (b) carry 10 coins (c) be under 30 cm tall (d) keep ice for 1 hour
31. 31.🏋️ A smooth ramp is 6 m long and rises 1 m. What effort pushes a 4200 N box up it, in newtons? (ideal ramp, no friction)
32. 32.📋 A constraint is … (a) a kind of glue (b) a final test (c) a goal for success (d) a limit you must keep to
33. 33.🔺 Which strong shape does a lintel over a door use? (a) dome (b) triangle (c) arch (d) beam
34. 34.Which of these happens in the Plan step? (a) build the model (b) follow the plan to build (c) check it against goals (d) pick the build order
35. 35.🛠️ People need to store water for summer. Which invention helps? (a) a bridge (b) a fridge (c) a lift (d) a dam
36. 36.⚖️ A lever bar balances. The load is 60 N at ? cm from the fulcrum. The effort is 90 N at 20 cm from the fulcrum on the other side. What is the missing distance in centimetres?
37. 37.📋 Constraint: the tower must be no taller than 80 cm. The team’s tower is 84 cm tall. Is it within the constraint? (a) Yes (b) No
38. 38.Which of these is recycle (make new things)? (a) buy less packaging (b) reuse gift paper (c) use a jar as a pen stand (d) melt cans into new cans
39. 39.🛠️ What does an engineer do before building anything? (a) understands the problem (b) buys every material (c) builds at once (d) paints the model
40. 40.What does the team leader do? (a) cuts and joins parts (b) collects the supplies (c) checks the goals are met (d) shares out the jobs

Free engineering lessons, practice and worksheets at talentjr.in/engineering-for-kids