Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 23 · 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.🛞 More or less friction: chalk on a gym bar? (a) less friction (b) more friction
2. 2.🪢 A concrete slab weighing 6600 N rests evenly on 6 identical pillars. What compression force does each pillar carry, in newtons?
3. 3.🛠️ Is a satellite made by engineers or found in nature? (a) found in nature (b) made by engineers
4. 4.🔺 Which shape keeps its shape best when its corners are pinned? (a) square (b) hexagon (c) rectangle (d) triangle
5. 5.🤝 A team of 4 shares 24 equal jobs fairly. Each job takes 6 minutes. How many minutes does each person work?
6. 6.True or false: a biomedical engineer designs a metro tunnel. (a) False (b) True
7. 7.True or false: a plank over a drain uses an arch. (a) True (b) False
8. 8.📋 Constraint: the tower must be no taller than 30 cm. The team’s tower is 24 cm tall. Is it within the constraint? (a) No (b) Yes
9. 9.Which of these needs a transparent material? (a) a magnifier lens (b) a hair band (c) the core of a wire (d) a boat hull
10. 10.🤝 A team plans for 45 minutes, builds for 30 minutes and then tests for 30 minutes, one after another. How many minutes is that in all?
11. 11.🔍 Which is the odd one out? (a) a road up a hill (b) a claw hammer on a nail (c) a wheelchair ramp (d) a playground slide
12. 12.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a glass sheet 6 N, a wooden plank 7 N, sandpaper 10 N, ice 3 N. Which surface gave the most friction? (a) a wooden plank (b) ice (c) sandpaper (d) a glass sheet
13. 13.📋 For a model bridge challenge, is “spend at most ₹100” a constraint or a criterion? (a) a criterion (b) a constraint
14. 14.⚖️ Which class of lever is a lemon squeezer? (a) class 1 (b) class 3 (c) class 2
15. 15.True or false: an electrical engineer designs satellites. (a) False (b) True
16. 16.🧪 The first prototype held 260 g. After the team improved it, the new prototype held 400 g. How many more grams did it hold?
17. 17.True or false: a civil engineer designs factory machines. (a) True (b) False
18. 18.Which of these is caused by friction? (a) an apple falls down (b) lifting a school bag (c) shoes grip the floor (d) a compass needle turns
19. 19.🔍 Which is the odd one out? (a) lift a cup of water (b) carry 10 coins (c) keep ice for 1 hour (d) use at most 20 straws
20. 20.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
21. 21.♻️ Which energy source will never run out? (a) diesel (b) sunlight (c) coal (d) petrol
22. 22.🏋️ A machine lifts a load of 360 N when you push with 60 N. What is its mechanical advantage (MA)?
23. 23.Which job is a screwdriver for? (a) turn a screw (b) tighten a nut (c) drive in a nail (d) cut a wooden plank
24. 24.Which job does a civil engineer do? (a) plans a space mission (b) designs knee implants (c) keeps data safe online (d) designs a flyover
25. 25.🌉 What holds up a long beam bridge in the middle? (a) balloons (b) cables only (c) nothing (d) piers
26. 26.🧑‍🔧 Which branch of engineering uses engineering to help doctors? (a) civil (b) biomedical (c) aerospace (d) electrical
27. 27.🤝 A team plans for 15 minutes, builds for 20 minutes and then tests for 5 minutes, one after another. How many minutes is that in all?
28. 28.True or false: a road up a hill is a wheel and axle. (a) False (b) True
29. 29.💪 A cart is pulled to the right with 35 N and to the left with 20 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
30. 30.True or false: skating on ice gives more friction. (a) False (b) True
31. 31.Which of these is a wheel and axle? (a) a well winch handle (b) a window blind cord (c) a flagpole rope wheel (d) a crane hook block
32. 32.♻️ Is coal a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
33. 33.🛠️ Is a mobile phone made by engineers or found in nature? (a) made by engineers (b) found in nature
34. 34.🪢 A sign weighing 680 N hangs from 4 identical vertical ropes that share the load equally. What is the tension in each rope, in newtons?
35. 35.True or false: hitting a cricket ball is a push. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) a tyre with deep treads (b) a box pushed on carpet (c) sand on a slippery path (d) a wheel on ball bearings
37. 37.True or false: a bridge helps people cross a wide river. (a) False (b) True
38. 38.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) chemical (b) biomedical (c) civil (d) computer
39. 39.📋 Your team’s budget is ₹113. You must buy one roll of tape for ₹20. Straws cost ₹4 each. What is the greatest number of straws you can buy?
40. 40.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 20 cm wide base, tower B is 30 cm tall on a 10 cm base and tower C is 200 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A

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