Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 727 · 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 bridge type: “cables tied down at ends”? (a) beam bridge (b) suspension bridge (c) arch bridge
2. 2.🪝 Fixed or movable pulley: which one rises with the load? (a) a fixed pulley (b) a movable pulley
3. 3.🔍 Which is the odd one out? (a) building tall and narrow (b) using a heavy roof (c) stacking loose bricks (d) adding cross bracing
4. 4.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) flexible (c) waterproof (d) transparent
5. 5.💪 Which force is at work: rubbing hands warms them? (a) friction (b) gravity (c) muscular force (d) magnetic force
6. 6.🔍 Which is the odd one out? (a) iron (b) glass (c) clay pottery (d) dry wood
7. 7.🔺 Which strong shape does a truss bridge side use? (a) beam (b) dome (c) triangle (d) arch
8. 8.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) having a wide base (c) raising heavy tanks high (d) stacking loose bricks
9. 9.⚖️ Along a straight bar, measured from the left end, the effort is at 50 cm, the fulcrum at 20 cm and the load at 40 cm. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
10. 10.🏋️ A force of 110 N pushes a cart 8 m along the floor. How much work is done, in joules?
11. 11.🦺 How should you carry scissors? (a) by the blades (b) points down, closed (c) while running (d) points up, open
12. 12.🪢 Which material is good in tension but useless in compression? (a) a stone (b) a concrete block (c) a rope (d) a brick
13. 13.True or false: to check it against goals is the Imagine step. (a) True (b) False
14. 14.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
15. 15.📐 On a plan, 1 cm stands for 2 m. A real bridge is 36 m long. How long is it on the plan, in centimetres?
16. 16.🛞 Is friction helpful or a problem here: writing with a pencil? (a) a problem (b) helpful
17. 17.True or false: pressing a doorbell is a push. (a) False (b) True
18. 18.🛠️ Is a satellite made by engineers or found in nature? (a) found in nature (b) made by engineers
19. 19.True or false: “fit on a school desk” is a criterion (a goal). (a) True (b) False
20. 20.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 150 g and design C held 200 g. Which design was the strongest? (a) design A (b) design C (c) design B
21. 21.Which of these is caused by gravity? (a) a magnet picks up pins (b) pedalling a cycle (c) an apple falls down (d) a compass needle turns
22. 22.⚖️ In a class 2 lever, what is in the middle? (a) the effort (b) the fulcrum (c) the load (d) the axle
23. 23.True or false: a car seat belt needs a transparent material. (a) False (b) True
24. 24.⚖️ On a seesaw, a heavier child should sit … (a) closer to the pivot (b) farther from the pivot (c) on the pivot (d) anywhere
25. 25.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) strengthen the weak part (b) build it with straws (c) choose and draw one (d) read the challenge rules
26. 26.🔍 Which is the odd one out? (a) repeat each test (b) test it only once (c) guess, do not measure (d) change lots at once
27. 27.⚙️ Which simple machine is a claw hammer on a nail? (a) pulley (b) screw (c) inclined plane (d) lever
28. 28.🤝 How do engineers share a design with others? (a) no drawings at all (b) clear labelled sketches (c) secret notes (d) only talking fast
29. 29.📋 For a model bridge challenge, is “hold up 500 g” a constraint or a criterion? (a) a criterion (b) a constraint
30. 30.Which job does a mechanical engineer do? (a) designs a flyover (b) designs a gearbox (c) designs artificial limbs (d) plans a power grid
31. 31.🤝 Is it good or poor teamwork to laugh at ideas? (a) poor teamwork (b) good teamwork
32. 32.⚖️ A lever bar balances. The load is 140 N at 40 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?
33. 33.True or false: ocean wave energy is a non-renewable energy source. (a) False (b) True
34. 34.⚖️ In a class 3 lever, what is in the middle? (a) the fulcrum (b) the load (c) the pulley (d) the effort
35. 35.Which of these is in compression (pushed)? (a) a crane lifting cable (b) a tall bridge tower (c) a swing chain (d) a tow rope on a car
36. 36.True or false: to brainstorm many ideas is the Improve step. (a) True (b) False
37. 37.📐 On a plan, 1 cm stands for 5 m. A wall is 19 cm long on the plan. How long is the real wall, in metres?
38. 38.⚙️ Which simple machine is a round doorknob? (a) screw (b) lever (c) wheel and axle (d) pulley
39. 39.🪝 A winch has a wheel of radius 16 cm and an axle of radius 2 cm. What effort on the wheel lifts a 1520 N bucket on the axle, in newtons? (ideal)
40. 40.Which of these is in tension (pulled)? (a) a tall bridge tower (b) a brick at a wall base (c) a tow rope on a car (d) a stone in an arch

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