Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 590 · 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.True or false: a chemical engineer runs a fertiliser plant. (a) False (b) True
2. 2.🔍 Which is the odd one out? (a) a banyan tree (b) a seashell (c) a cloud (d) a bicycle
3. 3.🪝 A load of 520 N hangs from a pulley system in which 2 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
4. 4.🔺 One side of a straw bridge is a row of 7 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
5. 5.🪢 A concrete slab weighing 12000 N rests evenly on 8 identical pillars. What compression force does each pillar carry, in newtons?
6. 6.🛞 Is friction helpful or a problem here: striking a matchstick? (a) a problem (b) helpful
7. 7.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
8. 8.⚖️ Which class of lever is a nutcracker? (a) class 2 (b) class 1 (c) class 3
9. 9.🧪 Why repeat a test three times? (a) the first is wrong (b) to use more paper (c) it looks busy (d) to get reliable results
10. 10.🏋️ Pushing a crate 9 m took 2070 J of work. What force was used, in newtons?
11. 11.⚙️ Which simple machine is a crane hook block? (a) screw (b) pulley (c) inclined plane (d) lever
12. 12.Which of these is found in nature? (a) a river (b) a dam (c) a water filter (d) a railway track
13. 13.🪢 Tension is a force that … (a) pulls or stretches (b) heats things (c) pushes or squeezes (d) turns things
14. 14.🏋️ A 12 kg box is lifted straight up by 3 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
15. 15.🔍 Which is the odd one out? (a) a mobile phone (b) a banyan tree (c) a waterfall (d) a volcano
16. 16.♻️ A project report has 62 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
17. 17.🤝 Is it good or poor teamwork to share the work fairly? (a) good teamwork (b) poor teamwork
18. 18.True or false: a fishing rod is a class 3 lever (effort in the middle). (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) a nutcracker (b) a claw hammer on a nail (c) a knife edge (d) a seesaw
20. 20.🛞 Is friction helpful or a problem here: writing with a pencil? (a) helpful (b) a problem
21. 21.Which need does a microscope meet? (a) carry many people far (b) talk to someone far away (c) see very tiny things (d) make water safe to drink
22. 22.📋 Your team’s budget is ₹51. You must buy one roll of tape for ₹15. Straws cost ₹3 each. What is the greatest number of straws you can buy?
23. 23.True or false: a crane hook block is a pulley. (a) True (b) False
24. 24.🤝 A team of 5 shares 25 equal jobs fairly. Each job takes 9 minutes. How many minutes does each person work?
25. 25.⚖️ A seesaw balances. Arjun (640 N) sits 1 m from the pivot on one side; Asha (160 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
26. 26.What does the team leader do? (a) runs the tests (b) checks the goals are met (c) keeps the team on track (d) collects the supplies
27. 27.True or false: a fort gateway uses a beam. (a) False (b) True
28. 28.Which of these is found in nature? (a) a waterfall (b) a mobile phone (c) a dam (d) a railway track
29. 29.🧑‍🔧 Which kind of engineer designs factory machines? (a) biomedical (b) computer (c) civil (d) mechanical
30. 30.🦺 How should you carry scissors? (a) while running (b) points up, open (c) by the blades (d) points down, closed
31. 31.True or false: a crowbar is a pulley. (a) True (b) False
32. 32.Which of these is in tension (pulled)? (a) a brick at a wall base (b) a tall bridge tower (c) a pillar under a roof (d) a tow rope on a car
33. 33.🔺 Which shape keeps its shape best when its corners are pinned? (a) square (b) triangle (c) hexagon (d) rectangle
34. 34.What does the builder do? (a) checks the goals are met (b) puts the model together (c) shares out the jobs (d) keeps the team on track
35. 35.⚖️ Which class of lever is a pair of kitchen tongs? (a) class 3 (b) class 1 (c) class 2
36. 36.🏋️ A smooth ramp is 3 m long and rises 1 m. What effort pushes a 450 N box up it, in newtons? (ideal ramp, no friction)
37. 37.Which job is a spirit level for? (a) measure a long length (b) check a shelf is level (c) grip and bend wire (d) measure an angle
38. 38.💪 A box weighs 560 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
39. 39.🤝 In a design team, who checks the goals are met? (a) builder (b) tester (c) team leader (d) materials manager
40. 40.🌉 A beam bridge is 495 m long. Piers split it into equal spans of 45 m. How many spans are there?

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