Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 182 · 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 is the odd one out? (a) change only one thing (b) use the same load (c) guess, do not measure (d) repeat each test
2. 2.🤝 A team plans for 50 minutes, builds for 10 minutes and then tests for 15 minutes, one after another. How many minutes is that in all?
3. 3.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
4. 4.🔍 Which is the odd one out? (a) spend at most ₹100 (b) be under 30 cm tall (c) float for 1 minute (d) use only paper and tape
5. 5.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
6. 6.🪝 A bucket weighing 490 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
7. 7.🤝 In a design team, who tracks what is used up? (a) tester (b) team leader (c) builder (d) materials manager
8. 8.🏋️ In which unit is work measured? (a) metre (m) (b) watt hour (c) joule (J) (d) newton (N)
9. 9.True or false: to run while holding tools is safe. (a) False (b) True
10. 10.Which job does a biomedical engineer do? (a) builds hospital scanners (b) designs electric motors (c) designs school networks (d) wires a new building
11. 11.🔢 To follow the engineering design process, what comes right after “Ask”? (a) Improve (b) Create (c) Plan (d) Imagine
12. 12.🔍 Which is the odd one out? (a) leaving out steel bars (b) raising heavy tanks high (c) using flexible joints (d) stacking loose bricks
13. 13.True or false: a curved stone doorway uses an arch. (a) True (b) False
14. 14.📋 Your team’s budget is ₹44. You must buy one roll of tape for ₹15. Straws cost ₹1 each. What is the greatest number of straws you can buy?
15. 15.🔍 Which is the odd one out? (a) copper (b) plastic (c) cotton cloth (d) rubber
16. 16.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 40 cm wide base, tower B is 150 cm tall on a 30 cm base and tower C is 30 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
17. 17.💪 A cart is pulled to the right with 30 N and to the left with 25 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
18. 18.⚙️ A wedge is … (a) two ramps back to back (b) a rope on a wheel (c) a bar on a pivot (d) a wheel on a rod
19. 19.Which of these needs a flexible material? (a) a raincoat (b) a boat hull (c) a magnifier lens (d) a car seat belt
20. 20.True or false: to tie back long hair is not safe. (a) True (b) False
21. 21.True or false: to redesign after testing is the Imagine step. (a) False (b) True
22. 22.📋 For a model bridge challenge, is “lift a cup of water” a constraint or a criterion? (a) a criterion (b) a constraint
23. 23.🌉 A beam bridge is 360 m long. Piers split it into equal spans of 30 m. How many spans are there?
24. 24.📐 On a plan, 1 cm stands for 5 m. A wall is 18 cm long on the plan. How long is the real wall, in metres?
25. 25.True or false: to own up to a mistake is poor teamwork. (a) True (b) False
26. 26.🛠️ What does an engineer mainly do? (a) designs useful solutions (b) grows crops (c) only paints pictures (d) sells tickets
27. 27.🛠️ Engineers use maths and which other subject the most? (a) dance (b) cooking (c) science (d) music
28. 28.⚖️ In a class 1 lever, what is in the middle? (a) the load (b) the fulcrum (c) nothing (d) the effort
29. 29.🔍 Which is the odd one out? (a) use at most 20 straws (b) roll at least 2 metres (c) spend at most ₹100 (d) be under 30 cm tall
30. 30.🔍 Which is the odd one out? (a) a wood screw (b) a nut and bolt (c) a playground slide (d) a bottle cap
31. 31.📐 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?
32. 32.🧪 What is a prototype? (a) a sales poster (b) a broken part (c) an early test model (d) the final product
33. 33.♻️ Reduce, reuse or recycle: switch off unused lights? (a) recycle (b) reuse (c) reduce
34. 34.🔄 In which step do engineers draw a labelled diagram? (a) Ask (b) Improve (c) Test (d) Plan
35. 35.🛞 How can we reduce friction in a machine? (a) add sand (b) press parts harder (c) make parts rough (d) oil the moving parts
36. 36.🔍 Which is the odd one out? (a) having a wide base (b) keeping a simple shape (c) fitting rubber base pads (d) leaving out steel bars
37. 37.🔍 Which is the odd one out? (a) a bottle cap (b) a round doorknob (c) a nut and bolt (d) a screw jack
38. 38.True or false: a bottle opener is a class 2 lever (load in the middle). (a) True (b) False
39. 39.⚖️ A seesaw balances. Asha (600 N) sits 1 m from the pivot on one side; Kabir (150 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
40. 40.📋 Criteria are … (a) the team names (b) the tools you use (c) the limits on money (d) goals a design must meet

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