Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 314 · 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.🧪 A paper bridge was tested three times. It held 260 g, 160 g and 60 g. What is the mean (average) load it held, in grams?
2. 2.🤝 In a design team, who runs the tests? (a) recorder (b) builder (c) tester (d) materials manager
3. 3.🦺 In the workshop, is it safe to let adults use hot glue? (a) safe (b) not safe
4. 4.⚖️ A lever balances when … (a) turning effects match (b) both weights are equal (c) the bar is short (d) the fulcrum moves
5. 5.🔺 A flat frame has 10 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
6. 6.🔍 Which is the odd one out? (a) a claw hammer on a nail (b) a crowbar (c) a nutcracker (d) a jar lid
7. 7.⚖️ A lever bar balances. The load is 300 N at 50 cm from the fulcrum. The effort is ? N at 60 cm from the fulcrum on the other side. What is the missing force in newtons?
8. 8.⚖️ On a seesaw, a heavier child should sit … (a) on the pivot (b) closer to the pivot (c) anywhere (d) farther from the pivot
9. 9.🪝 A load of 160 N hangs from a pulley system in which 2 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
10. 10.True or false: a water filter helps people make power from sunlight. (a) False (b) True
11. 11.📐 How many metres are in 1 kilometre? (a) 100 (b) 10 (c) 1000 (d) 10000
12. 12.🤝 Is it good or poor teamwork to give kind feedback? (a) poor teamwork (b) good teamwork
13. 13.🛠️ Is a railway track made by engineers or found in nature? (a) made by engineers (b) found in nature
14. 14.📐 How many centimetres are in 1 metre? (a) 10 (b) 60 (c) 100 (d) 1000
15. 15.🛞 How can we reduce friction in a machine? (a) oil the moving parts (b) press parts harder (c) make parts rough (d) add sand
16. 16.🔍 Which is the odd one out? (a) measure the same way (b) use the same load (c) skip writing results (d) change only one thing
17. 17.🧪 The first prototype held 200 g. After the team improved it, the new prototype held 260 g. How many more grams did it hold?
18. 18.True or false: to measure an angle, use a spirit level. (a) True (b) False
19. 19.🔧 Which tool would you use to measure a long length? (a) a tape measure (b) a spirit level (c) sandpaper (d) a spanner
20. 20.🤝 A team of 2 shares 6 equal jobs fairly. Each job takes 9 minutes. How many minutes does each person work?
21. 21.Which need does a bridge meet? (a) go through a mountain (b) keep food fresh longer (c) cross a wide river (d) reach a top floor fast
22. 22.🤝 Is it good or poor teamwork to listen to every idea? (a) poor teamwork (b) good teamwork
23. 23.Which job is sandpaper for? (a) turn a screw (b) make a hole in wood (c) cut a wooden plank (d) smooth a rough edge
24. 24.🔍 Which is the odd one out? (a) keep ice for 1 hour (b) use at most 20 straws (c) lift a cup of water (d) stand in a fan breeze
25. 25.True or false: “pushes out on its ends” is a beam bridge. (a) True (b) False
26. 26.💪 In a tug of war, one team pulls right with 35 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
27. 27.True or false: a mechanical engineer designs bicycle gears. (a) True (b) False
28. 28.Which of these is reduce (use less)? (a) plant in old tyres (b) pulp old paper (c) fix a dripping tap (d) give old books away
29. 29.⚖️ A seesaw balances. Zoya (400 N) sits ? m from the pivot on one side; Kabir (200 N) sits 4 m from the pivot on the other side. What is the missing distance in metres?
30. 30.🧪 A paper bridge was tested three times. It held 330 g, 310 g and 320 g. What is the mean (average) load it held, in grams?
31. 31.♻️ Which energy source will never run out? (a) coal (b) sunlight (c) petrol (d) diesel
32. 32.🪝 A wheel and axle is a big wheel fixed to … (a) a sharp wedge (b) a loose rope (c) a flat ramp (d) a smaller rod (axle)
33. 33.Which job does a biomedical engineer do? (a) lays out a highway (b) builds a website (c) plans a dam (d) designs artificial limbs
34. 34.🛠️ Which of these is a problem an engineer could solve? (a) a sad song (b) a boring story (c) a lost cricket match (d) a road that floods
35. 35.Which of these is an arch bridge? (a) pushes out on its ends (b) the simplest bridge (c) a log across a stream (d) good for short gaps
36. 36.Which of these is reduce (use less)? (a) plant in old tyres (b) refill a water bottle (c) melt cans into new cans (d) carry a cloth bag
37. 37.⚖️ A seesaw balances. Zoya (100 N) sits ? m from the pivot on one side; Asha (200 N) sits 1 m from the pivot on the other side. What is the missing distance in metres?
38. 38.True or false: a pillar under a roof is in compression (pushed). (a) True (b) False
39. 39.🏚️ Three solid model towers are made of the same material. Tower A is 150 cm tall on a 30 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 180 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
40. 40.⚙️ A screw is really … (a) a kind of wheel (b) a ramp wrapped round (c) a bent lever (d) a tiny pulley

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