Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 852 · 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 kind of engineer lays out a highway? (a) aerospace (b) chemical (c) mechanical (d) civil
2. 2.What does the builder do? (a) writes down results (b) keeps the team on track (c) collects the supplies (d) cuts and joins parts
3. 3.♻️ Reduce, reuse or recycle: use a jar as a pen stand? (a) reuse (b) reduce (c) recycle
4. 4.🧪 The first prototype held 130 g. After the team improved it, the new prototype held 220 g. How many more grams did it hold?
5. 5.True or false: to change only one thing is poor testing. (a) False (b) True
6. 6.⚖️ A seesaw balances. Ravi (480 N) sits 3 m from the pivot on one side; Zoya (? N) sits 3 m from the pivot on the other side. What is the missing weight in newtons?
7. 7.🔺 One side of a straw bridge is a row of 1 triangle standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
8. 8.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
9. 9.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they look nice (c) they stop shaking (d) they bend, not break
10. 10.📐 How many metres are in 1 kilometre? (a) 1000 (b) 10 (c) 10000 (d) 100
11. 11.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
12. 12.True or false: a pair of pliers is a class 1 lever (fulcrum in the middle). (a) True (b) False
13. 13.🔍 Which is the odd one out? (a) using a light roof (b) fitting rubber base pads (c) having a wide base (d) building tall and narrow
14. 14.True or false: a box pushed on carpet gives less friction. (a) False (b) True
15. 15.📋 Your team’s budget is ₹100. You must buy one roll of tape for ₹15. Straws cost ₹5 each. What is the greatest number of straws you can buy?
16. 16.📋 For a model bridge challenge, is “use only paper and tape” a constraint or a criterion? (a) a criterion (b) a constraint
17. 17.🧱 Which property matters most for a raincoat? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
18. 18.True or false: a crowbar is a class 1 lever (fulcrum in the middle). (a) False (b) True
19. 19.🏋️ A smooth ramp is 18 m long and rises 3 m. What effort pushes a 4500 N box up it, in newtons? (ideal ramp, no friction)
20. 20.True or false: a movable pulley needs effort = load. (a) True (b) False
21. 21.True or false: a nutcracker is a class 2 lever (load in the middle). (a) True (b) False
22. 22.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a glass sheet 3 N, a wooden plank 5 N, a carpet 7 N, sandpaper 8 N. How many newtons more were needed on sandpaper than on a glass sheet?
23. 23.Which of these is an arch bridge? (a) a rope bridge in hills (b) the simplest bridge (c) a flat deck on piers (d) a curve under the deck
24. 24.True or false: pulling up your socks is a push. (a) True (b) False
25. 25.🏋️ A 2 kg box is lifted straight up by 2 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
26. 26.🏋️ A 2 kg box is lifted straight up by 3 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
27. 27.⚖️ Along a straight bar, measured from the left end, the effort is at 0 cm, the fulcrum at 40 cm and the load at 70 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
28. 28.Which of these is caused by gravity? (a) a rolling ball slows (b) rain falls to the ground (c) lifting a school bag (d) pedalling a cycle
29. 29.🏋️ A machine lifts a load of 240 N when you push with 40 N. What is its mechanical advantage (MA)?
30. 30.🔍 Which is the odd one out? (a) a waterfall (b) a mobile phone (c) a bicycle (d) a water filter
31. 31.🦺 What protects your eyes when sawing or drilling? (a) sunglasses (b) a cap (c) nothing (d) safety goggles
32. 32.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
33. 33.💪 A bag has a mass of 18 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
34. 34.🧑‍🔧 Which branch of engineering uses engineering to help doctors? (a) biomedical (b) aerospace (c) electrical (d) civil
35. 35.🔍 Which is the odd one out? (a) play near a moving drill (b) tie back long hair (c) carry scissors closed (d) let adults use hot glue
36. 36.⚖️ A lever bar balances. The load is 50 N at 30 cm from the fulcrum. The effort is ? N at 50 cm from the fulcrum on the other side. What is the missing force in newtons?
37. 37.🧪 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
38. 38.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
39. 39.True or false: to test it only once is good testing. (a) True (b) False
40. 40.🪝 Fixed or movable pulley: which one stays in one place? (a) a movable pulley (b) a fixed pulley

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