Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 272 · 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 property matters most for a cooking pot handle? (a) electrical conductor (b) transparent (c) flexible (d) heat insulator
2. 2.📋 Your team’s budget is ₹41. You must buy one roll of tape for ₹5. Straws cost ₹2 each. What is the greatest number of straws you can buy?
3. 3.🔍 Which is the odd one out? (a) skating on ice (b) a wet tiled floor (c) a grippy rubber sole (d) powder on a carrom board
4. 4.⚖️ A lever bar balances. The load is 300 N at 20 cm from the fulcrum. The effort is 60 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
5. 5.🪢 Tension or compression: a tall bridge tower? (a) compression (b) tension
6. 6.Which of these needs a transparent material? (a) a switch contact (b) a raincoat (c) a magnifier lens (d) a yoga mat
7. 7.🔍 Which is the odd one out? (a) a tow rope on a car (b) a stretched rubber band (c) a hanging lamp chain (d) a brick at a wall base
8. 8.🔧 Which tool would you use to cut a wooden plank? (a) a saw (b) sandpaper (c) a hand drill (d) a screwdriver
9. 9.True or false: an aerospace engineer plans a space mission. (a) False (b) True
10. 10.True or false: to grip and bend wire, use pliers. (a) True (b) False
11. 11.🔄 Is the engineering design process done only once? (a) no, it repeats (b) only for big jobs (c) only on Sundays (d) yes, only once
12. 12.🔍 Which is the odd one out? (a) a wood screw (b) a nut and bolt (c) a wheelchair ramp (d) a jar lid
13. 13.Which of these is reduce (use less)? (a) refill a water bottle (b) give old books away (c) buy less packaging (d) melt glass into new jars
14. 14.True or false: to repeat each test is good testing. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) a nut and bolt (b) a bottle cap (c) a jar lid (d) a chisel
16. 16.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) sketch three ideas (b) strengthen the weak part (c) build it with straws (d) read the challenge rules
17. 17.🧪 A paper bridge was tested three times. It held 270 g, 240 g and 210 g. What is the mean (average) load it held, in grams?
18. 18.⚖️ Turning effect = force × … (a) colour of bar (b) time taken (c) mass of fulcrum (d) distance from fulcrum
19. 19.🤝 How do engineers share a design with others? (a) only talking fast (b) clear labelled sketches (c) no drawings at all (d) secret notes
20. 20.True or false: using a light roof makes a building safer in earthquakes. (a) False (b) True
21. 21.🏋️ A smooth ramp is 4 m long and rises 2 m. What effort pushes a 600 N box up it, in newtons? (ideal ramp, no friction)
22. 22.🛠️ People need to keep food fresh longer. Which invention helps? (a) a tunnel (b) a fridge (c) a solar panel (d) a bridge
23. 23.True or false: skating on ice gives more friction. (a) False (b) True
24. 24.🧑‍🔧 Which kind of engineer designs aeroplane wings? (a) mechanical (b) biomedical (c) computer (d) aerospace
25. 25.🤝 A teammate’s idea seems odd. What should you do first? (a) walk away (b) ignore it (c) listen and ask why (d) laugh at it
26. 26.⚖️ A seesaw balances. Asha (? N) sits 1 m from the pivot on one side; Kabir (120 N) sits 4 m from the pivot on the other side. What is the missing weight in newtons?
27. 27.True or false: your forearm is a class 3 lever (effort in the middle). (a) True (b) False
28. 28.📐 On a plan, 1 cm stands for 5 m. A real bridge is 80 m long. How long is it on the plan, in centimetres?
29. 29.Which need does a fridge meet? (a) see very tiny things (b) go through a mountain (c) carry many people far (d) keep food fresh longer
30. 30.🏋️ A 2 kg box is lifted straight up by 4 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
31. 31.💪 In a tug of war, one team pulls right with 55 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
32. 32.🔄 After testing, a design does not work well. What comes next? (a) Ask (b) give up (c) Improve (d) Imagine
33. 33.🪝 What does a single fixed pulley change? (a) gravity (b) the size of the load (c) the direction of pull (d) the colour of rope
34. 34.True or false: “good for short gaps” is a suspension bridge. (a) True (b) False
35. 35.⚖️ On a seesaw, a heavier child should sit … (a) on the pivot (b) farther from the pivot (c) closer to the pivot (d) anywhere
36. 36.What does the recorder do? (a) keeps the team on track (b) cuts and joins parts (c) keeps the design notes (d) puts the model together
37. 37.🔍 Which is the odd one out? (a) a bicycle (b) a rainbow (c) a seashell (d) a river
38. 38.⚖️ To lift a heavy rock with a crowbar more easily, push … (a) on the rock (b) on the fulcrum (c) far from the fulcrum (d) near the fulcrum
39. 39.🪢 Which material is good in tension but useless in compression? (a) a rope (b) a concrete block (c) a brick (d) a stone
40. 40.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor

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