Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 169 · 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 which unit is work measured? (a) watt hour (b) joule (J) (c) metre (m) (d) newton (N)
2. 2.True or false: a computer engineer designs artificial limbs. (a) False (b) True
3. 3.🌉 Which bridge type: “the simplest bridge”? (a) arch bridge (b) suspension bridge (c) beam bridge
4. 4.Which of these is a lever? (a) a bottle opener (b) a round doorknob (c) an axe blade (d) the tip of a nail
5. 5.🔍 Which is the odd one out? (a) cotton cloth (b) steel (c) plastic (d) clay pottery
6. 6.🌉 What holds up a long beam bridge in the middle? (a) nothing (b) piers (c) balloons (d) cables only
7. 7.🧑‍🔧 Which kind of engineer plans a space mission? (a) mechanical (b) chemical (c) aerospace (d) civil
8. 8.🛠️ People need to store water for summer. Which invention helps? (a) a dam (b) a fridge (c) a bridge (d) a solar panel
9. 9.⚙️ A screw is really … (a) a kind of wheel (b) a ramp wrapped round (c) a bent lever (d) a tiny pulley
10. 10.🌉 A beam bridge 120 m long rests on the two river banks and on piers in between, making equal spans of 15 m. How many piers are there?
11. 11.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) rubber (d) glass
12. 12.🏋️ A force of 350 N pushes a cart 7 m along the floor. How much work is done, in joules?
13. 13.📐 On a plan, 1 cm stands for 5 m. A wall is 16 cm long on the plan. How long is the real wall, in metres?
14. 14.🏋️ Mechanical advantage (MA) = … (a) load + effort (b) load × effort (c) effort ÷ load (d) load ÷ effort
15. 15.True or false: a fixed pulley halves the effort. (a) False (b) True
16. 16.🔺 Which shape keeps its shape best when its corners are pinned? (a) rectangle (b) hexagon (c) triangle (d) square
17. 17.♻️ A sustainable design … (a) lasts one day (b) protects the future (c) uses the most plastic (d) wastes water
18. 18.True or false: to carry scissors closed is not safe. (a) False (b) True
19. 19.🔍 Which is the odd one out? (a) building tall and narrow (b) making brittle joints (c) using a heavy roof (d) adding cross bracing
20. 20.🔍 Which is the odd one out? (a) tie back long hair (b) use a cracked tool (c) play near a moving drill (d) leave tools on the floor
21. 21.🏚️ Three solid model towers are made of the same material. Tower A is 100 cm tall on a 20 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 60 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
22. 22.🪢 Which material is good in tension but useless in compression? (a) a stone (b) a rope (c) a brick (d) a concrete block
23. 23.⚙️ Which simple machine is a chisel? (a) inclined plane (b) lever (c) wedge (d) pulley
24. 24.🛠️ Engineers use maths and which other subject the most? (a) dance (b) music (c) science (d) cooking
25. 25.♻️ A project report has 10 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
26. 26.🧪 Why do engineers make prototypes? (a) to test ideas cheaply (b) to avoid testing (c) to sell them at once (d) to decorate a room
27. 27.⚖️ A lever bar balances. The load is 160 N at 50 cm from the fulcrum. The effort is ? N at 40 cm from the fulcrum on the other side. What is the missing force in newtons?
28. 28.Which of these is made by engineers? (a) a rainbow (b) a waterfall (c) a water filter (d) a river
29. 29.Which of these is caused by gravity? (a) shoes grip the floor (b) a rolling ball slows (c) an apple falls down (d) brakes stop a bicycle
30. 30.🔍 Which is the odd one out? (a) a stretched rubber band (b) a suspension cable (c) a tall bridge tower (d) a hanging lamp chain
31. 31.🪝 A bucket weighing 410 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
32. 32.🏋️ A smooth ramp is 10 m long and rises 2 m. What effort pushes a 4250 N box up it, in newtons? (ideal ramp, no friction)
33. 33.🔢 To follow the engineering design process, which comes first: “Create” or “Ask”? (a) Create (b) Ask
34. 34.🔍 Which is the odd one out? (a) keep ice for 1 hour (b) use at most 20 straws (c) spend at most ₹100 (d) fit on a school desk
35. 35.True or false: a fixed pulley needs effort = load. (a) False (b) True
36. 36.💪 Which force pulls everything towards the Earth? (a) wind (b) gravity (c) friction (d) magnetism
37. 37.🔍 Which is the odd one out? (a) carry 10 coins (b) use at most 20 straws (c) roll at least 2 metres (d) lift a cup of water
38. 38.🛠️ People need to cross a wide river. Which invention helps? (a) a microscope (b) a water filter (c) a fridge (d) a bridge
39. 39.🧑‍🔧 Which kind of engineer designs artificial limbs? (a) aerospace (b) chemical (c) mechanical (d) biomedical
40. 40.True or false: a mechanical engineer designs a gearbox. (a) False (b) True

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