Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 221 · 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.🛠️ Is a cloud made by engineers or found in nature? (a) found in nature (b) made by engineers
2. 2.Which of these is made by engineers? (a) a rainbow (b) a water filter (c) a river (d) a cloud
3. 3.🧪 What is a prototype? (a) an early test model (b) the final product (c) a broken part (d) a sales poster
4. 4.🪝 A pulley system lifts a 40 N load with an effort of 20 N. What is its mechanical advantage (MA)?
5. 5.True or false: “fit on a school desk” is a constraint (a limit). (a) False (b) True
6. 6.🪢 A sign weighing 220 N hangs from 2 identical vertical ropes that share the load equally. What is the tension in each rope, in newtons?
7. 7.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a wooden plank 7 N, a carpet 9 N, sandpaper 13 N, ice 3 N. Which surface gave the least friction? (a) a wooden plank (b) sandpaper (c) ice (d) a carpet
8. 8.Which need does a telephone meet? (a) talk to someone far away (b) make power from sunlight (c) keep food fresh longer (d) cross a wide river
9. 9.True or false: a well-bucket rope wheel is a pulley. (a) True (b) False
10. 10.Which of these uses triangles? (a) a plank over a drain (b) an old stone bridge (c) a curved stone doorway (d) a crane arm
11. 11.🏋️ A force of 410 N did 1230 J of work. How many metres did the object move?
12. 12.🏋️ A force of 450 N pushes a cart 9 m along the floor. How much work is done, in joules?
13. 13.📋 Constraint: the tower must be no taller than 90 cm. The team’s tower is 92 cm tall. Is it within the constraint? (a) Yes (b) No
14. 14.True or false: a magnifier lens needs a waterproof material. (a) False (b) True
15. 15.🪢 A sign weighing 140 N hangs from 2 identical vertical ropes that share the load equally. What is the tension in each rope, in newtons?
16. 16.🔢 To follow the engineering design process, which comes first: “Imagine” or “Improve”? (a) Imagine (b) Improve
17. 17.🧪 Three prototype bridges were tested with the same method. Design A held 340 g, design B held 240 g and design C held 290 g. Which design was the weakest? (a) design A (b) design B (c) design C
18. 18.Which of these uses triangles? (a) an old stone bridge (b) a plank over a drain (c) a bicycle frame (d) a lintel over a door
19. 19.💪 In a tug of war, one team pulls right with 65 N and the other pulls left with 60 N. What is the size of the net force, in newtons?
20. 20.🧑‍🔧 Which kind of engineer plans a dam? (a) mechanical (b) chemical (c) aerospace (d) civil
21. 21.🛞 More or less friction: a rough doormat? (a) more friction (b) less friction
22. 22.📋 Constraint: the tower must be no taller than 60 cm. The team’s tower is 54 cm tall. Is it within the constraint? (a) No (b) Yes
23. 23.🪝 A load of 320 N hangs from a pulley system in which 4 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
24. 24.🧪 Why do engineers make prototypes? (a) to test ideas cheaply (b) to avoid testing (c) to decorate a room (d) to sell them at once
25. 25.Which job does an electrical engineer do? (a) builds hospital scanners (b) builds a website (c) plans a power grid (d) designs aeroplane wings
26. 26.🤝 In a design team, who cuts and joins parts? (a) materials manager (b) recorder (c) team leader (d) builder
27. 27.Which job does a biomedical engineer do? (a) designs hearing aids (b) plans a space mission (c) designs a metro tunnel (d) designs car engines
28. 28.Which of these is in tension (pulled)? (a) a bridge pier (b) a stone in an arch (c) a tall bridge tower (d) a hanging lamp chain
29. 29.True or false: a nut and bolt is a lever. (a) True (b) False
30. 30.Which of these is an arch bridge? (a) deck hangs from cables (b) pushes out on its ends (c) the simplest bridge (d) a flat deck on piers
31. 31.What does the team leader do? (a) puts the model together (b) writes down results (c) runs the tests (d) keeps the team on track
32. 32.🌉 A beam bridge 40 m long is split by piers into 2 equal spans. How long is each span, in metres?
33. 33.⚖️ A lever bar balances. The load is 360 N at 50 cm from the fulcrum. The effort is 300 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
34. 34.🛞 Friction acts … (a) only upwards (b) with the motion (c) against the motion (d) only on ice
35. 35.🔍 Which is the odd one out? (a) a rainbow (b) a banyan tree (c) a mountain (d) a bridge
36. 36.🪝 Fixed or movable pulley: which one halves the effort? (a) a fixed pulley (b) a movable pulley
37. 37.🔄 Which design-process step is it to measure its performance? (a) Improve (b) Ask (c) Test (d) Create
38. 38.🛠️ Which of these is a problem an engineer could solve? (a) a lost cricket match (b) a sad song (c) a boring story (d) a road that floods
39. 39.⚖️ Along a straight bar, measured from the left end, the effort is at 30 cm, the fulcrum at 40 cm and the load at 60 cm. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
40. 40.Which job is a screwdriver for? (a) turn a screw (b) cut a wooden plank (c) drive in a nail (d) tighten a nut

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