Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 788 · 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 seesaw balances. Meena (330 N) sits 3 m from the pivot on one side; Arjun (330 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
2. 2.Which of these is a pulley? (a) a nutcracker (b) a well-bucket rope wheel (c) a bottle cap (d) a truck loading ramp
3. 3.⚖️ Which class of lever is a bottle opener? (a) class 2 (b) class 3 (c) class 1
4. 4.🔄 After testing, a design does not work well. What comes next? (a) Imagine (b) give up (c) Ask (d) Improve
5. 5.True or false: a fixed pulley makes you pull 2× rope. (a) True (b) False
6. 6.🏋️ Mechanical advantage (MA) = … (a) load × effort (b) load ÷ effort (c) effort ÷ load (d) load + effort
7. 7.📐 On a plan, 1 cm stands for 2 m. A real bridge is 14 m long. How long is it on the plan, in centimetres?
8. 8.True or false: an aerospace engineer plans a power grid. (a) False (b) True
9. 9.🛠️ What does an engineer mainly do? (a) designs useful solutions (b) sells tickets (c) grows crops (d) only paints pictures
10. 10.True or false: a seesaw is a class 3 lever (effort in the middle). (a) True (b) False
11. 11.💪 In a tug of war, one team pulls left with 60 N and the other pulls right with 40 N. What is the size of the net force, in newtons?
12. 12.⚖️ Which class of lever is a seesaw? (a) class 1 (b) class 2 (c) class 3
13. 13.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a carpet 7 N, ice 2 N, a glass sheet 3 N, a wooden plank 6 N. How many newtons more were needed on a carpet than on ice?
14. 14.⚖️ Which class of lever is a pair of tweezers? (a) class 3 (b) class 2 (c) class 1
15. 15.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) civil (b) computer (c) biomedical (d) chemical
16. 16.⚖️ Which class of lever is a pair of kitchen tongs? (a) class 3 (b) class 1 (c) class 2
17. 17.🛠️ Is a lift made by engineers or found in nature? (a) found in nature (b) made by engineers
18. 18.Which of these is in compression (pushed)? (a) a hanging lamp chain (b) a tent guy rope (c) a stretched rubber band (d) a pillar under a roof
19. 19.🏋️ Can a simple machine reduce the work done? (a) yes, always (b) yes, by half (c) only on Mondays (d) no, work stays the same
20. 20.💪 Which force is at work: pedalling a cycle? (a) friction (b) gravity (c) muscular force (d) magnetic force
21. 21.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
22. 22.🧪 The first prototype held 90 g. After the team improved it, the new prototype held 150 g. How many more grams did it hold?
23. 23.🏋️ An 8 kg box is lifted straight up by 5 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
24. 24.True or false: to turn a screw, use a protractor. (a) True (b) False
25. 25.🪢 Tension or compression: a tow rope on a car? (a) compression (b) tension
26. 26.Which of these is caused by magnetic force? (a) pedalling a cycle (b) shoes grip the floor (c) rain falls to the ground (d) a fridge magnet sticks
27. 27.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True
28. 28.🏋️ A force of 200 N did 1600 J of work. How many metres did the object move?
29. 29.♻️ Which is the BEST order to think about waste? (a) reduce, reuse, recycle (b) reuse, recycle, reduce (c) burn, bury, forget (d) recycle, reuse, reduce
30. 30.🔍 Which is the odd one out? (a) a ceiling fan (b) a seashell (c) a volcano (d) a coral reef
31. 31.🧑‍🔧 Which kind of engineer wires a new building? (a) chemical (b) aerospace (c) electrical (d) civil
32. 32.🤝 Is it good or poor teamwork to listen to every idea? (a) poor teamwork (b) good teamwork
33. 33.🔍 Which is the odd one out? (a) use at most 20 straws (b) lift a cup of water (c) keep ice for 1 hour (d) hold up 500 g
34. 34.🧪 What is a prototype? (a) a sales poster (b) an early test model (c) a broken part (d) the final product
35. 35.Which of these uses a beam? (a) an old stone bridge (b) a bicycle frame (c) a lintel over a door (d) a truss bridge side
36. 36.Which of these is caused by muscular force? (a) an apple falls down (b) a river flows downhill (c) brakes stop a bicycle (d) squeezing a lemon
37. 37.Which of these is a screw? (a) a well-bucket rope wheel (b) a truck loading ramp (c) a flagpole rope wheel (d) a screw jack
38. 38.⚙️ A screw is really … (a) a ramp wrapped round (b) a bent lever (c) a tiny pulley (d) a kind of wheel
39. 39.🔄 Which design-process step is it to fix the weak part? (a) Ask (b) Plan (c) Create (d) Improve
40. 40.🔍 Which is the odd one out? (a) a grippy rubber sole (b) a box pushed on carpet (c) chalk on a gym bar (d) a smooth steel slide

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