Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 970 · 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 strong shape does a round palace roof use? (a) beam (b) dome (c) arch (d) triangle
2. 2.True or false: a dam is found in nature. (a) False (b) True
3. 3.⚖️ A seesaw balances. Arjun (? N) sits 1 m from the pivot on one side; Meena (170 N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?
4. 4.Which of these is caused by muscular force? (a) rubbing hands warms them (b) shoes grip the floor (c) lifting a school bag (d) an apple falls down
5. 5.🤝 A teammate’s idea seems odd. What should you do first? (a) ignore it (b) walk away (c) laugh at it (d) listen and ask why
6. 6.💪 Two children push a box to the right, one with 40 N and the other with 15 N. What is the net (total) force on the box, in newtons?
7. 7.🤝 A team of 5 shares 20 equal jobs fairly. Each job takes 10 minutes. How many minutes does each person work?
8. 8.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) copper (d) rubber
9. 9.📐 Why do engineers use scale drawings? (a) big things fit on paper (b) to make them pretty (c) to hide sizes (d) to save ink only
10. 10.🔺 A frame shaped like a triangle is made of straws joined by loose pins, with 0 corner-to-corner braces. Is it rigid or wobbly? (a) wobbly (b) rigid
11. 11.🔢 To build and test a straw bridge, which is the LAST step? (a) read the challenge rules (b) strengthen the weak part (c) load it with coins (d) sketch three ideas
12. 12.🛠️ People need to make power from sunlight. Which invention helps? (a) a microscope (b) a train (c) a solar panel (d) a bridge
13. 13.🛞 More or less friction: a wheel on ball bearings? (a) less friction (b) more friction
14. 14.📐 On a plan, 1 cm stands for 10 m. A real bridge is 190 m long. How long is it on the plan, in centimetres?
15. 15.📐 A model car is drawn so that 1 cm stands for 30 cm. The car is 12 cm long in the drawing. How long is the real car, in centimetres?
16. 16.🤝 A team plans for 10 minutes, builds for 40 minutes and then tests for 25 minutes, one after another. How many minutes is that in all?
17. 17.♻️ Which energy source will never run out? (a) coal (b) petrol (c) diesel (d) sunlight
18. 18.💪 In a tug of war, one team pulls left with 40 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
19. 19.📋 For a model bridge challenge, is “finish in 40 minutes” a constraint or a criterion? (a) a constraint (b) a criterion
20. 20.🔍 Which is the odd one out? (a) a water filter (b) a waterfall (c) a seashell (d) a mountain
21. 21.Which of these happens in the Imagine step? (a) find the limits (b) draw a labelled diagram (c) think of wild ideas (d) check it against goals
22. 22.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) biomedical (b) chemical (c) computer (d) civil
23. 23.🔢 To follow the engineering design process, which comes first: “Imagine” or “Ask”? (a) Imagine (b) Ask
24. 24.♻️ Reduce, reuse or recycle: carry a cloth bag? (a) reuse (b) reduce (c) recycle
25. 25.🏋️ A 7 kg box is lifted straight up by 4 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
26. 26.🔍 Which is the odd one out? (a) cotton cloth (b) brass (c) dry wood (d) clay pottery
27. 27.True or false: a pair of tweezers is a class 3 lever (effort in the middle). (a) False (b) True
28. 28.💪 A box weighs 80 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
29. 29.🤝 A team plans for 15 minutes, builds for 10 minutes and then tests for 5 minutes, one after another. How many minutes is that in all?
30. 30.Which of these needs a heat insulator? (a) an oven glove (b) a boat hull (c) a spectacle lens (d) a yoga mat
31. 31.🔍 Which is the odd one out? (a) change only one thing (b) guess, do not measure (c) change lots at once (d) skip writing results
32. 32.🦺 In the workshop, is it safe to run while holding tools? (a) not safe (b) safe
33. 33.Which of these is a screw? (a) a water tap handle (b) a truck loading ramp (c) a wood screw (d) a well winch handle
34. 34.Which of these is reuse (use again)? (a) print on both sides (b) melt cans into new cans (c) fix a dripping tap (d) refill a water bottle
35. 35.🔍 Which is the odd one out? (a) carry 10 coins (b) float for 1 minute (c) keep ice for 1 hour (d) spend at most ₹100
36. 36.Which of these is an inclined plane? (a) a door stopper (b) a wheelchair ramp (c) a chisel (d) a well winch handle
37. 37.🪢 A stage stands on 8 identical legs and each leg is squeezed with 975 N. What is the total load on the stage, in newtons?
38. 38.⚖️ A seesaw balances. Meena (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?
39. 39.True or false: a beam balance is a class 1 lever (fulcrum in the middle). (a) True (b) False
40. 40.True or false: to do all the work alone is good teamwork. (a) False (b) True

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