Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 769 · 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.🪝 Fixed or movable pulley: which one makes you pull 2× rope? (a) a movable pulley (b) a fixed pulley
2. 2.⚖️ To lift a heavy rock with a crowbar more easily, push … (a) near the fulcrum (b) far from the fulcrum (c) on the fulcrum (d) on the rock
3. 3.💪 A box weighs 550 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
4. 4.True or false: to run while holding tools is not safe. (a) False (b) True
5. 5.🔄 Which design-process step is it to redesign after testing? (a) Improve (b) Imagine (c) Create (d) Ask
6. 6.🏋️ An 18 kg box is lifted straight up by 4 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
7. 7.🏋️ Work is done when a force moves something … (a) without moving it (b) only upwards (c) very slowly (d) through a distance
8. 8.True or false: a fixed pulley hangs on the rope loop. (a) True (b) False
9. 9.⚖️ A lever bar balances. The load is 270 N at 20 cm from the fulcrum. The effort is ? N at 30 cm from the fulcrum on the other side. What is the missing force in newtons?
10. 10.🔄 Which design-process step is it to make it better, retest? (a) Ask (b) Imagine (c) Create (d) Improve
11. 11.⚖️ A seesaw balances. Kabir (? N) sits 2 m from the pivot on one side; Zoya (340 N) sits 4 m from the pivot on the other side. What is the missing weight in newtons?
12. 12.Which job does a computer engineer do? (a) keeps data safe online (b) designs aeroplane wings (c) designs power lines (d) designs knee implants
13. 13.⚖️ A seesaw balances. Meena (560 N) sits 4 m from the pivot on one side; Ravi (560 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
14. 14.🌉 A beam bridge 150 m long rests on the two river banks and on piers in between, making equal spans of 30 m. How many piers are there?
15. 15.True or false: to wear safety goggles is safe. (a) False (b) True
16. 16.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
17. 17.True or false: closing a drawer is a push. (a) False (b) True
18. 18.🪢 Tension is a force that … (a) turns things (b) heats things (c) pulls or stretches (d) pushes or squeezes
19. 19.Which job is a tape measure for? (a) check a shelf is level (b) make a hole in wood (c) measure a long length (d) cut a wooden plank
20. 20.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 30 cm wide base, tower B is 180 cm tall on a 30 cm base and tower C is 320 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
21. 21.🏋️ A force of 420 N did 1260 J of work. How many metres did the object move?
22. 22.🧑‍🔧 Which kind of engineer makes medicines in bulk? (a) chemical (b) civil (c) computer (d) electrical
23. 23.🤝 In a design team, who puts the model together? (a) tester (b) builder (c) recorder (d) team leader
24. 24.🔍 Which is the odd one out? (a) finish in 40 minutes (b) be under 30 cm tall (c) spend at most ₹100 (d) keep ice for 1 hour
25. 25.🤝 Is it good or poor teamwork to hide a mistake? (a) good teamwork (b) poor teamwork
26. 26.📐 A beam is 490 cm long. How long is it in metres? =
27. 27.🪢 A stage stands on 6 identical legs and each leg is squeezed with 575 N. What is the total load on the stage, in newtons?
28. 28.⚖️ A seesaw balances. Asha (140 N) sits ? m from the pivot on one side; Meena (420 N) sits 1 m from the pivot on the other side. What is the missing distance in metres?
29. 29.⚖️ In a class 1 lever, what is in the middle? (a) the effort (b) the load (c) the fulcrum (d) nothing
30. 30.True or false: natural gas is a renewable energy source. (a) True (b) False
31. 31.⚖️ A seesaw balances. Meena (480 N) sits ? m from the pivot on one side; Asha (480 N) sits 4 m from the pivot on the other side. What is the missing distance in metres?
32. 32.🏚️ Three solid model towers are made of the same material. Tower A is 10 cm tall on a 10 cm wide base, tower B is 20 cm tall on a 10 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
33. 33.🤝 Is it good or poor teamwork to ignore the team plan? (a) good teamwork (b) poor teamwork
34. 34.🧱 Which property matters most for the core of a wire? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
35. 35.Which of these uses triangles? (a) a truss bridge side (b) an old stone bridge (c) an igloo (d) a planetarium roof
36. 36.🧑‍🔧 Which branch of engineering uses engineering to help doctors? (a) biomedical (b) civil (c) aerospace (d) electrical
37. 37.⚖️ Along a straight bar, measured from the left end, the effort is at 30 cm, the fulcrum at 60 cm and the load at 20 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
38. 38.⚖️ Turning effect = force × … (a) mass of fulcrum (b) colour of bar (c) distance from fulcrum (d) time taken
39. 39.🛞 Is friction helpful or a problem here: machine parts heating up? (a) helpful (b) a problem
40. 40.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator

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