Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 928 · 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.🦺 In the workshop, is it safe to let adults use hot glue? (a) safe (b) not safe
2. 2.🪢 A concrete slab weighing 3000 N rests evenly on 6 identical pillars. What compression force does each pillar carry, in newtons?
3. 3.📐 A model car is drawn so that 1 cm stands for 20 cm. The car is 4 cm long in the drawing. How long is the real car, in centimetres?
4. 4.🛠️ Is a mobile phone made by engineers or found in nature? (a) found in nature (b) made by engineers
5. 5.🤝 A team of 3 shares 18 equal jobs fairly. Each job takes 10 minutes. How many minutes does each person work?
6. 6.🤝 A team of 3 shares 15 equal jobs fairly. Each job takes 3 minutes. How many minutes does each person work?
7. 7.⚖️ Turning effect = force × … (a) colour of bar (b) mass of fulcrum (c) distance from fulcrum (d) time taken
8. 8.🤝 Is it good or poor teamwork to ignore the team plan? (a) poor teamwork (b) good teamwork
9. 9.🪝 A winch has a wheel of radius 5 cm and an axle of radius 1 cm. What effort on the wheel lifts a 300 N bucket on the axle, in newtons? (ideal)
10. 10.⚖️ Along a straight bar, measured from the left end, the effort is at 80 cm, the fulcrum at 50 cm and the load at 30 cm. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
11. 11.🌉 Which bridge type: “the simplest bridge”? (a) arch bridge (b) suspension bridge (c) beam bridge
12. 12.🪢 Tension is a force that … (a) heats things (b) pushes or squeezes (c) pulls or stretches (d) turns things
13. 13.🧪 What is a prototype? (a) a broken part (b) an early test model (c) the final product (d) a sales poster
14. 14.True or false: a tug of war is a push. (a) False (b) True
15. 15.🧑‍🔧 Which kind of engineer designs car engines? (a) chemical (b) computer (c) civil (d) mechanical
16. 16.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they bend, not break (c) they are cheap (d) they stop shaking
17. 17.🔍 Which is the odd one out? (a) brass (b) rubber (c) steel (d) copper
18. 18.💪 A cart is pulled to the right with 85 N and to the left with 75 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
19. 19.🔺 Which strong shape does a lintel over a door use? (a) beam (b) triangle (c) dome (d) arch
20. 20.True or false: to run while holding tools is safe. (a) False (b) True
21. 21.True or false: a railway track is made by engineers. (a) False (b) True
22. 22.📐 On a plan, 1 cm stands for 5 m. A real bridge is 95 m long. How long is it on the plan, in centimetres?
23. 23.🏋️ A force of 130 N did 1170 J of work. How many metres did the object move?
24. 24.🌉 Which bridge type: “a curve under the deck”? (a) beam bridge (b) suspension bridge (c) arch bridge
25. 25.🧪 Three prototype bridges were tested with the same method. Design A held 160 g, design B held 210 g and design C held 260 g. Which design was the strongest? (a) design A (b) design C (c) design B
26. 26.📋 Constraint: the tower must be no taller than 100 cm. The team’s tower is 94 cm tall. Is it within the constraint? (a) No (b) Yes
27. 27.🤝 In a design team, who puts the model together? (a) builder (b) recorder (c) materials manager (d) team leader
28. 28.True or false: a movable pulley only changes direction. (a) True (b) False
29. 29.🌉 Which bridge type: “a rope bridge in hills”? (a) suspension bridge (b) beam bridge (c) arch bridge
30. 30.🧑‍🔧 Which kind of engineer makes medicines in bulk? (a) aerospace (b) biomedical (c) civil (d) chemical
31. 31.🪝 Fixed or movable pulley: which one hangs on the rope loop? (a) a movable pulley (b) a fixed pulley
32. 32.Which job is a tape measure for? (a) measure a long length (b) drive in a nail (c) make a hole in wood (d) cut a wooden plank
33. 33.📋 For a model bridge challenge, is “stand in a fan breeze” a constraint or a criterion? (a) a constraint (b) a criterion
34. 34.True or false: to use a new load each time is poor testing. (a) True (b) False
35. 35.True or false: to record every result is poor testing. (a) True (b) False
36. 36.🦺 How should you carry scissors? (a) by the blades (b) while running (c) points down, closed (d) points up, open
37. 37.🔍 Which is the odd one out? (a) run while holding tools (b) cut away from your body (c) clamp wood before sawing (d) carry scissors closed
38. 38.🛞 More or less friction: a rough doormat? (a) less friction (b) more friction
39. 39.🏋️ A force of 350 N pushes a cart 1 m along the floor. How much work is done, in joules?
40. 40.🏋️ A force of 130 N did 390 J of work. How many metres did the object move?

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