Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 93 · 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 a design team, who cuts and joins parts? (a) tester (b) materials manager (c) builder (d) team leader
2. 2.🔺 A frame shaped like a pentagon is made of straws joined by loose pins, with 2 corner-to-corner braces. Is it rigid or wobbly? (a) rigid (b) wobbly
3. 3.🔧 Which tool would you use to cut a wooden plank? (a) a protractor (b) a spanner (c) a screwdriver (d) a saw
4. 4.🪢 Tension or compression: a pillar under a roof? (a) compression (b) tension
5. 5.Which of these is caused by gravity? (a) a rolling ball slows (b) a fridge magnet sticks (c) a compass needle turns (d) an apple falls down
6. 6.⚖️ A seesaw balances. Asha (390 N) sits 2 m from the pivot on one side; Ravi (260 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
7. 7.🧑‍🔧 Which kind of engineer makes medicines in bulk? (a) chemical (b) electrical (c) aerospace (d) biomedical
8. 8.🪝 A pulley system lifts a 280 N load with an effort of 140 N. What is its mechanical advantage (MA)?
9. 9.True or false: using a light roof makes a building safer in earthquakes. (a) False (b) True
10. 10.🛠️ What does an engineer mainly do? (a) designs useful solutions (b) sells tickets (c) only paints pictures (d) grows crops
11. 11.🤝 In a design team, who shares out the jobs? (a) recorder (b) builder (c) team leader (d) materials manager
12. 12.🏚️ Why is a wide base safer? (a) it is colourful (b) it is lighter (c) it is harder to tip over (d) it is taller
13. 13.🏋️ A force of 210 N pushes a cart 6 m along the floor. How much work is done, in joules?
14. 14.True or false: a mechanical engineer designs bicycle gears. (a) True (b) False
15. 15.⚙️ Which simple machine is a door stopper? (a) pulley (b) screw (c) inclined plane (d) wedge
16. 16.⚖️ 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 2 (b) class 3 (c) class 1
17. 17.⚖️ In a class 3 lever, what is in the middle? (a) the fulcrum (b) the load (c) the effort (d) the pulley
18. 18.True or false: a pillar under a roof is in compression (pushed). (a) False (b) True
19. 19.📐 On a plan, 1 cm stands for 5 m. A real bridge is 45 m long. How long is it on the plan, in centimetres?
20. 20.Which need does a tunnel meet? (a) see very tiny things (b) carry many people far (c) go through a mountain (d) store water for summer
21. 21.⚖️ Along a straight bar, measured from the left end, the effort is at 40 cm, the fulcrum at 0 cm and the load at 80 cm. Which class of lever is it? (a) class 2 (b) class 3 (c) class 1
22. 22.🌉 A beam bridge 210 m long rests on the two river banks and on piers in between, making equal spans of 35 m. How many piers are there?
23. 23.🔺 A frame shaped like a square is made of straws joined by loose pins, with 0 corner-to-corner braces. Is it rigid or wobbly? (a) rigid (b) wobbly
24. 24.💪 Which force is at work: shoes grip the floor? (a) magnetic force (b) gravity (c) muscular force (d) friction
25. 25.True or false: a bottle opener is a class 1 lever (fulcrum in the middle). (a) False (b) True
26. 26.🤝 A team plans for 10 minutes, builds for 20 minutes and then tests for 15 minutes, one after another. How many minutes is that in all?
27. 27.🤝 Is it good or poor teamwork to talk over others? (a) good teamwork (b) poor teamwork
28. 28.Which of these is made by engineers? (a) a seashell (b) a mountain (c) a rainbow (d) a railway track
29. 29.🔍 Which is the odd one out? (a) a swing chain (b) a stretched rubber band (c) a tow rope on a car (d) a tall bridge tower
30. 30.⚖️ Along a straight bar, measured from the left end, the effort is at 60 cm, the fulcrum at 90 cm and the load at 20 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
31. 31.True or false: sunlight is a renewable energy source. (a) True (b) False
32. 32.🦺 In the workshop, is it safe to let adults use hot glue? (a) safe (b) not safe
33. 33.🔢 To follow the engineering design process, which comes first: “Ask” or “Improve”? (a) Ask (b) Improve
34. 34.True or false: to smooth a rough edge, use sandpaper. (a) False (b) True
35. 35.🔺 How do engineers stop a square frame from wobbling? (a) paint it (b) take off a side (c) make it bigger (d) add a diagonal brace
36. 36.🔍 Which is the odd one out? (a) a rough doormat (b) a box pushed on carpet (c) sand on a slippery path (d) a wheel on ball bearings
37. 37.💪 A bag has a mass of 30 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
38. 38.Which job is a spanner for? (a) tighten a nut (b) grip and bend wire (c) check a shelf is level (d) drive in a nail
39. 39.True or false: a fixed pulley halves the effort. (a) False (b) True
40. 40.True or false: pressing a doorbell is a pull. (a) True (b) False

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