Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 964 · 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 of these needs a flexible material? (a) a raincoat (b) a boat hull (c) a car windscreen (d) a car seat belt
2. 2.🏚️ Why is a wide base safer? (a) it is lighter (b) it is colourful (c) it is taller (d) it is harder to tip over
3. 3.🔍 Which is the odd one out? (a) record every result (b) test it only once (c) measure the same way (d) use the same load
4. 4.🪝 A well winch has a handle (wheel) of radius 20 cm turning an axle of radius 4 cm. What is its mechanical advantage (MA)?
5. 5.🏋️ A force of 50 N did 250 J of work. How many metres did the object move?
6. 6.⚖️ A lever bar balances. The load is 100 N at 50 cm from the fulcrum. The effort is 100 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
7. 7.True or false: to own up to a mistake is good teamwork. (a) True (b) False
8. 8.Which job does an electrical engineer do? (a) designs satellites (b) designs power lines (c) designs a flyover (d) refines crude oil
9. 9.🧑‍🔧 Which kind of engineer lays out a highway? (a) aerospace (b) biomedical (c) chemical (d) civil
10. 10.♻️ A sustainable design … (a) lasts one day (b) wastes water (c) protects the future (d) uses the most plastic
11. 11.🛠️ A scientist asks “why does it happen?”. An engineer mostly asks … (a) what is for lunch? (b) who won the match? (c) why is the sky blue? (d) how can we build it?
12. 12.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) False (b) True
13. 13.⚖️ A seesaw balances. Ravi (380 N) sits 4 m from the pivot on one side; Arjun (760 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
14. 14.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
15. 15.🏋️ In which unit is work measured? (a) newton (N) (b) watt hour (c) joule (J) (d) metre (m)
16. 16.📋 Your team’s budget is ₹110. You must buy one roll of tape for ₹5. Straws cost ₹5 each. What is the greatest number of straws you can buy?
17. 17.🌉 A beam bridge 480 m long rests on the two river banks and on piers in between, making equal spans of 40 m. How many piers are there?
18. 18.True or false: a fixed pulley rises with the load. (a) True (b) False
19. 19.True or false: “tall towers hold cables” is an arch bridge. (a) True (b) False
20. 20.🔄 Which design-process step is it to define the problem? (a) Ask (b) Test (c) Imagine (d) Plan
21. 21.True or false: “tall towers hold cables” is a beam bridge. (a) True (b) False
22. 22.🔢 To follow the engineering design process, what comes right after “Imagine”? (a) Plan (b) Create (c) Improve (d) Ask
23. 23.🔺 How do engineers stop a square frame from wobbling? (a) make it bigger (b) add a diagonal brace (c) paint it (d) take off a side
24. 24.What does the recorder do? (a) collects the supplies (b) cuts and joins parts (c) tracks what is used up (d) writes down results
25. 25.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a glass sheet 6 N, a carpet 8 N, sandpaper 12 N, ice 4 N. Which surface gave the most friction? (a) sandpaper (b) ice (c) a carpet (d) a glass sheet
26. 26.True or false: an electrical engineer builds rockets. (a) True (b) False
27. 27.True or false: a tall bridge tower is in compression (pushed). (a) False (b) True
28. 28.📐 On a plan, 1 cm stands for 20 m. A real bridge is 260 m long. How long is it on the plan, in centimetres?
29. 29.🔍 Which is the odd one out? (a) dry wood (b) glass (c) rubber (d) graphite
30. 30.🔍 Which is the odd one out? (a) a nutcracker (b) a claw hammer on a nail (c) a screw jack (d) a seesaw
31. 31.True or false: to do all the work alone is poor teamwork. (a) True (b) False
32. 32.♻️ A family used to throw away 6 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 4 weeks?
33. 33.True or false: a wheelbarrow is a class 3 lever (effort in the middle). (a) True (b) False
34. 34.🌉 What holds up a long beam bridge in the middle? (a) piers (b) balloons (c) nothing (d) cables only
35. 35.🔍 Which is the odd one out? (a) the tip of a nail (b) an axe blade (c) a chisel (d) a claw hammer on a nail
36. 36.🏋️ Pushing a crate 8 m took 640 J of work. What force was used, in newtons?
37. 37.🔍 Which is the odd one out? (a) tie back long hair (b) put tools back after use (c) touch a hot glue tip (d) let adults use hot glue
38. 38.🔺 One side of a straw bridge is a row of 6 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
39. 39.🔄 Which design-process step is it to draw a labelled diagram? (a) Ask (b) Plan (c) Test (d) Create
40. 40.🔍 Which is the odd one out? (a) a tyre with deep treads (b) a box pushed on carpet (c) a grippy rubber sole (d) a smooth steel slide

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