Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 192 · 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.🔺 Which strong shape does an electric pylon use? (a) arch (b) triangle (c) beam (d) dome
2. 2.📋 Your team’s budget is ₹36. You must buy one roll of tape for ₹20. Straws cost ₹2 each. What is the greatest number of straws you can buy?
3. 3.📋 A constraint is … (a) a limit you must keep to (b) a kind of glue (c) a goal for success (d) a final test
4. 4.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) computer (b) chemical (c) civil (d) biomedical
5. 5.Which of these is made by engineers? (a) a mountain (b) a ceiling fan (c) a cloud (d) a seashell
6. 6.🔍 Which is the odd one out? (a) a claw hammer on a nail (b) a crowbar (c) a wheelchair ramp (d) a seesaw
7. 7.Which of these uses a dome? (a) a crane arm (b) a round palace roof (c) a lintel over a door (d) a curved stone doorway
8. 8.True or false: a crane lifting cable is in tension (pulled). (a) True (b) False
9. 9.🤝 Why do engineers work in teams? (a) to work alone (b) to argue more (c) to finish nothing (d) many skills and ideas
10. 10.🪝 A pulley system has 4 rope sections holding up the load. To lift the load by 8 m, how many metres of rope must you pull?
11. 11.🏋️ A force of 330 N pushes a cart 9 m along the floor. How much work is done, in joules?
12. 12.⚖️ Along a straight bar, measured from the left end, the effort is at 20 cm, the fulcrum at 30 cm and the load at 10 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
13. 13.🔢 To follow the engineering design process, which is the FIRST step? (a) Improve (b) Ask (c) Create (d) Imagine
14. 14.🦺 Who should use hot glue guns and power tools in a kids’ project? (a) a stranger (b) the youngest child (c) an adult (d) any child alone
15. 15.🪝 Fixed or movable pulley: which one stays in one place? (a) a fixed pulley (b) a movable pulley
16. 16.🔺 Which strong shape does a crane arm use? (a) beam (b) dome (c) arch (d) triangle
17. 17.⚖️ A seesaw balances. Zoya (450 N) sits 2 m from the pivot on one side; Kabir (300 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
18. 18.🪝 A pulley system lifts a 460 N load with an effort of 230 N. What is its mechanical advantage (MA)?
19. 19.📐 Why do engineers use scale drawings? (a) to make them pretty (b) big things fit on paper (c) to save ink only (d) to hide sizes
20. 20.Which job does an electrical engineer do? (a) builds rockets (b) writes app software (c) wires a new building (d) designs aeroplane wings
21. 21.Which of these is caused by friction? (a) a compass needle turns (b) a rolling ball slows (c) a river flows downhill (d) a magnet picks up pins
22. 22.True or false: a boat hull needs a waterproof material. (a) True (b) False
23. 23.🪝 A pulley system has 4 rope sections holding up the load. To lift the load by 5 m, how many metres of rope must you pull?
24. 24.⚖️ A seesaw balances. Arjun (? N) sits 3 m from the pivot on one side; Ravi (390 N) sits 1 m from the pivot on the other side. What is the missing weight in newtons?
25. 25.True or false: a bottle opener is a class 2 lever (load in the middle). (a) False (b) True
26. 26.⚙️ A wedge is … (a) two ramps back to back (b) a rope on a wheel (c) a wheel on a rod (d) a bar on a pivot
27. 27.⚖️ In a class 3 lever, what is in the middle? (a) the effort (b) the pulley (c) the load (d) the fulcrum
28. 28.🏋️ Pushing a crate 3 m took 930 J of work. What force was used, in newtons?
29. 29.🛠️ 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
30. 30.🌉 Which bridge type: “good for short gaps”? (a) suspension bridge (b) arch bridge (c) beam bridge
31. 31.⚙️ Most simple machines make work easier by letting us … (a) stop all friction (b) use a smaller force (c) make new energy (d) switch off gravity
32. 32.True or false: a steering wheel is a wheel and axle. (a) False (b) True
33. 33.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) having a wide base (c) leaving out steel bars (d) fitting rubber base pads
34. 34.🛞 Is friction helpful or a problem here: machine parts heating up? (a) a problem (b) helpful
35. 35.📐 On a plan, 1 cm stands for 20 m. A real bridge is 140 m long. How long is it on the plan, in centimetres?
36. 36.📐 On a plan, 1 cm stands for 2 m. A real bridge is 12 m long. How long is it on the plan, in centimetres?
37. 37.Which of these is caused by muscular force? (a) brakes stop a bicycle (b) lifting a school bag (c) a thrown ball comes down (d) rubbing hands warms them
38. 38.True or false: a solar panel helps people make power from sunlight. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) use only paper and tape (b) stand in a fan breeze (c) use at most 20 straws (d) fit on a school desk
40. 40.True or false: a door stopper is a pulley. (a) False (b) True

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