Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 385 · 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: an electrical engineer wires a new building. (a) True (b) False
2. 2.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) choose and draw one (b) strengthen the weak part (c) load it with coins (d) sketch three ideas
3. 3.💪 A box weighs 330 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
4. 4.🤝 Is it good or poor teamwork to listen to every idea? (a) poor teamwork (b) good teamwork
5. 5.🏋️ A smooth ramp is 12 m long and rises 2 m. What effort pushes a 2700 N box up it, in newtons? (ideal ramp, no friction)
6. 6.⚖️ In a class 2 lever, what is in the middle? (a) the fulcrum (b) the axle (c) the effort (d) the load
7. 7.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
8. 8.⚖️ A lever bar balances. The load is 200 N at ? cm from the fulcrum. The effort is 20 N at 100 cm from the fulcrum on the other side. What is the missing distance in centimetres?
9. 9.🤝 Is it good or poor teamwork to hide a mistake? (a) good teamwork (b) poor teamwork
10. 10.♻️ Is diesel a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
11. 11.🧑‍🔧 Which kind of engineer designs a metro tunnel? (a) computer (b) mechanical (c) chemical (d) civil
12. 12.📋 For a model bridge challenge, is “spend at most ₹100” a constraint or a criterion? (a) a criterion (b) a constraint
13. 13.🏋️ A 16 kg box is lifted straight up by 4 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
14. 14.🤝 A team plans for 10 minutes, builds for 35 minutes and then tests for 5 minutes, one after another. How many minutes is that in all?
15. 15.⚖️ A lever bar balances. The load is ? N at 10 cm from the fulcrum. The effort is 20 N at 30 cm from the fulcrum on the other side. What is the missing force in newtons?
16. 16.True or false: an aerospace engineer designs satellites. (a) True (b) False
17. 17.Which of these is a suspension bridge? (a) a rope bridge in hills (b) a log across a stream (c) pushes out on its ends (d) stones squeezed together
18. 18.🏋️ A 10 kg box is lifted straight up by 5 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
19. 19.What does the builder do? (a) keeps the design notes (b) collects the supplies (c) cuts and joins parts (d) writes down results
20. 20.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
21. 21.True or false: a pair of pliers is a class 1 lever (fulcrum in the middle). (a) False (b) True
22. 22.♻️ A project report has 32 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
23. 23.🛠️ People need to make power from sunlight. Which invention helps? (a) a solar panel (b) a lift (c) a bridge (d) a train
24. 24.📋 A design meets every criterion but costs more than the budget. Is it acceptable? (a) yes, always (b) no, it breaks a limit (c) only if it is red (d) yes, it works
25. 25.⚙️ Which simple machine is a claw hammer on a nail? (a) wheel and axle (b) screw (c) inclined plane (d) lever
26. 26.🛠️ People need to make water safe to drink. Which invention helps? (a) a fridge (b) a water filter (c) a telephone (d) a microscope
27. 27.True or false: to measure an angle, use a protractor. (a) False (b) True
28. 28.🔢 To follow the engineering design process, which comes first: “Ask” or “Create”? (a) Ask (b) Create
29. 29.True or false: petrol is a non-renewable energy source. (a) True (b) False
30. 30.🪝 A well winch has a handle (wheel) of radius 20 cm turning an axle of radius 5 cm. What is its mechanical advantage (MA)?
31. 31.True or false: a steering wheel is a wheel and axle. (a) False (b) True
32. 32.True or false: to skip writing results is good testing. (a) True (b) False
33. 33.True or false: a flagpole rope wheel is a wedge. (a) True (b) False
34. 34.🪢 Tension is a force that … (a) pulls or stretches (b) heats things (c) turns things (d) pushes or squeezes
35. 35.📐 A model car is drawn so that 1 cm stands for 10 cm. The car is 6 cm long in the drawing. How long is the real car, in centimetres?
36. 36.True or false: powder on a carrom board gives more friction. (a) False (b) True
37. 37.🪢 Tension or compression: a crane lifting cable? (a) tension (b) compression
38. 38.🛠️ What does an engineer do before building anything? (a) paints the model (b) buys every material (c) understands the problem (d) builds at once
39. 39.True or false: a biomedical engineer runs a fertiliser plant. (a) True (b) False
40. 40.True or false: a crane hook block is a pulley. (a) False (b) True

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