Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 841 · 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 job is a tape measure for? (a) measure an angle (b) measure a long length (c) check a shelf is level (d) grip and bend wire
2. 2.Which of these is recycle (make new things)? (a) print on both sides (b) plant in old tyres (c) melt cans into new cans (d) give old books away
3. 3.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 3 N, a glass sheet 4 N, a wooden plank 5 N, sandpaper 6 N. Which surface gave the most friction? (a) ice (b) sandpaper (c) a wooden plank (d) a glass sheet
4. 4.⚖️ A seesaw balances. Asha (420 N) sits 3 m from the pivot on one side; Ravi (420 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
5. 5.🪢 A concrete slab weighing 7200 N rests evenly on 6 identical pillars. What compression force does each pillar carry, in newtons?
6. 6.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
7. 7.🔺 One side of a straw bridge is a row of 8 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
8. 8.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
9. 9.True or false: a wheel on ball bearings gives more friction. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) a water tap handle (b) a claw hammer on a nail (c) a steering wheel (d) a round doorknob
11. 11.True or false: a car windscreen needs a transparent material. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) use at most 20 straws (b) spend at most ₹100 (c) finish in 40 minutes (d) keep ice for 1 hour
13. 13.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 160 g. How many more grams did it hold?
14. 14.🔢 To follow the engineering design process, which is the FIRST step? (a) Create (b) Improve (c) Test (d) Ask
15. 15.📐 A beam is 350 cm long. How long is it in metres? =
16. 16.🤝 A team of 5 shares 10 equal jobs fairly. Each job takes 6 minutes. How many minutes does each person work?
17. 17.🔧 Which tool would you use to measure an angle? (a) a spirit level (b) a spanner (c) sandpaper (d) a protractor
18. 18.True or false: a bottle cap is a screw. (a) True (b) False
19. 19.🧱 Which property matters most for a raincoat? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
20. 20.📋 For a model bridge challenge, is “use at most 20 straws” a constraint or a criterion? (a) a constraint (b) a criterion
21. 21.⚖️ Along a straight bar, measured from the left end, the effort is at 90 cm, the fulcrum at 50 cm and the load at 30 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
22. 22.🔺 A flat frame has 6 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
23. 23.🔺 One side of a straw bridge is a row of 14 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
24. 24.🌉 A beam bridge 250 m long rests on the two river banks and on piers in between, making equal spans of 50 m. How many piers are there?
25. 25.📋 A constraint is … (a) a goal for success (b) a final test (c) a limit you must keep to (d) a kind of glue
26. 26.🛞 More or less friction: a tyre with deep treads? (a) more friction (b) less friction
27. 27.True or false: a curved stone doorway uses a beam. (a) True (b) False
28. 28.True or false: a water tank needs a waterproof material. (a) False (b) True
29. 29.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) hanging outside (c) on a thin pole (d) on the very top
30. 30.♻️ A school bench is made from 300 recycled plastic bottles. How many benches can be made from 2700 bottles?
31. 31.Which of these uses an arch? (a) an igloo (b) a fort gateway (c) a bicycle frame (d) a round palace roof
32. 32.🦺 In the workshop, is it safe to wear safety goggles? (a) safe (b) not safe
33. 33.🔍 Which is the odd one out? (a) use at most 20 straws (b) spend at most ₹100 (c) fit on a school desk (d) stand in a fan breeze
34. 34.⚖️ Going along a lever from one end to the other, the order is: load, fulcrum, effort. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
35. 35.⚖️ Along a straight bar, measured from the left end, the effort is at 60 cm, the fulcrum at 80 cm and the load at 30 cm. Which class of lever is it? (a) class 2 (b) class 3 (c) class 1
36. 36.🪝 A bucket weighing 100 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
37. 37.True or false: a wet tiled floor gives more friction. (a) False (b) True
38. 38.🧑‍🔧 Which kind of engineer builds rockets? (a) mechanical (b) aerospace (c) biomedical (d) computer
39. 39.🛠️ Engineers use maths and which other subject the most? (a) cooking (b) dance (c) music (d) science
40. 40.🪝 A load of 440 N hangs from a pulley system in which 4 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)

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