Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 632 · 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.⚖️ A seesaw balances. Asha (260 N) sits 4 m from the pivot on one side; Zoya (? N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?
2. 2.🏋️ Can a simple machine reduce the work done? (a) yes, by half (b) only on Mondays (c) yes, always (d) no, work stays the same
3. 3.🔢 To follow the engineering design process, which comes first: “Imagine” or “Plan”? (a) Imagine (b) Plan
4. 4.True or false: a beam balance is a class 3 lever (effort in the middle). (a) True (b) False
5. 5.Which of these is reduce (use less)? (a) refill a water bottle (b) pulp old paper (c) melt glass into new jars (d) carry a cloth bag
6. 6.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) copper (d) wood
7. 7.🤝 A teammate’s idea seems odd. What should you do first? (a) listen and ask why (b) ignore it (c) laugh at it (d) walk away
8. 8.📐 On a plan, 1 cm stands for 5 m. A wall is 13 cm long on the plan. How long is the real wall, in metres?
9. 9.Which of these needs a waterproof material? (a) a skipping rope (b) a spectacle lens (c) the core of a wire (d) an umbrella cover
10. 10.🪝 What does a single fixed pulley change? (a) the size of the load (b) the direction of pull (c) gravity (d) the colour of rope
11. 11.🔺 Which strong shape does a planetarium roof use? (a) beam (b) triangle (c) dome (d) arch
12. 12.True or false: to put tools back after use is not safe. (a) False (b) True
13. 13.🌉 Which bridge type can cross the widest gap in one span? (a) arch bridge (b) suspension bridge (c) beam bridge (d) log bridge
14. 14.True or false: “cables tied down at ends” is an arch bridge. (a) True (b) False
15. 15.🏋️ A force of 190 N did 1710 J of work. How many metres did the object move?
16. 16.Which of these is a wheel and axle? (a) a nut and bolt (b) a bottle cap (c) a steering wheel (d) a road up a hill
17. 17.🪢 Tension or compression: a stone in an arch? (a) tension (b) compression
18. 18.True or false: to build the model is the Create step. (a) True (b) False
19. 19.Which of these uses a beam? (a) a roof truss (b) a bicycle frame (c) a plank over a drain (d) an electric pylon
20. 20.Which of these happens in the Improve step? (a) measure its performance (b) check it against goals (c) brainstorm many ideas (d) make it better, retest
21. 21.True or false: an electrical engineer builds a website. (a) False (b) True
22. 22.Which of these happens in the Imagine step? (a) redesign after testing (b) think of wild ideas (c) follow the plan to build (d) list the materials
23. 23.Which of these is an inclined plane? (a) an axe blade (b) a claw hammer on a nail (c) a round doorknob (d) a playground slide
24. 24.Which of these uses an arch? (a) a planetarium roof (b) a bicycle frame (c) a lintel over a door (d) an old stone bridge
25. 25.Which job is a tape measure for? (a) smooth a rough edge (b) make a hole in wood (c) drive in a nail (d) measure a long length
26. 26.True or false: “a curve under the deck” is a suspension bridge. (a) False (b) True
27. 27.Which of these is reduce (use less)? (a) refill a water bottle (b) give old books away (c) fix a dripping tap (d) use a jar as a pen stand
28. 28.🛠️ Is a ceiling fan made by engineers or found in nature? (a) found in nature (b) made by engineers
29. 29.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
30. 30.🤝 Is it good or poor teamwork to blame others for faults? (a) poor teamwork (b) good teamwork
31. 31.🏋️ A machine lifts a load of 100 N when you push with 50 N. What is its mechanical advantage (MA)?
32. 32.📋 For a model bridge challenge, is “spend at most ₹100” a constraint or a criterion? (a) a criterion (b) a constraint
33. 33.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) keeping a simple shape (c) adding cross bracing (d) raising heavy tanks high
34. 34.🦺 In the workshop, is it safe to wear safety goggles? (a) safe (b) not safe
35. 35.True or false: to check a shelf is level, use sandpaper. (a) True (b) False
36. 36.📐 On a plan, 1 cm stands for 5 m. A real bridge is 20 m long. How long is it on the plan, in centimetres?
37. 37.🏋️ A machine lifts a load of 120 N when you push with 60 N. What is its mechanical advantage (MA)?
38. 38.📋 Your team’s budget is ₹58. You must buy one roll of tape for ₹5. Straws cost ₹5 each. What is the greatest number of straws you can buy?
39. 39.📋 For a model bridge challenge, is “keep ice for 1 hour” a constraint or a criterion? (a) a constraint (b) a criterion
40. 40.True or false: a tug of war is a pull. (a) False (b) True

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