Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 698 · 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.📋 Constraint: the tower must be no taller than 70 cm. The team’s tower is 66 cm tall. Is it within the constraint? (a) No (b) Yes
2. 2.🤝 In a design team, who writes down results? (a) builder (b) team leader (c) tester (d) recorder
3. 3.🌉 Which bridge type: “pushes out on its ends”? (a) suspension bridge (b) arch bridge (c) beam bridge
4. 4.🔺 A flat frame has 9 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
5. 5.True or false: a crowbar is a class 2 lever (load in the middle). (a) False (b) True
6. 6.⚖️ Along a straight bar, measured from the left end, the effort is at 50 cm, the fulcrum at 70 cm and the load at 20 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
7. 7.🧑‍🔧 Which kind of engineer makes medicines in bulk? (a) mechanical (b) civil (c) biomedical (d) chemical
8. 8.True or false: an umbrella cover needs a flexible material. (a) False (b) True
9. 9.True or false: to follow the plan to build is the Create step. (a) True (b) False
10. 10.⚖️ A lever bar balances. The load is 270 N at 30 cm from the fulcrum. The effort is 90 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
11. 11.📐 On a plan, 1 cm stands for 10 m. A real bridge is 200 m long. How long is it on the plan, in centimetres?
12. 12.🏋️ A force of 430 N pushes a cart 5 m along the floor. How much work is done, in joules?
13. 13.Which of these is reuse (use again)? (a) print on both sides (b) turn plastic into tiles (c) carry a cloth bag (d) plant in old tyres
14. 14.🧑‍🔧 Which branch of engineering uses engineering to help doctors? (a) civil (b) aerospace (c) biomedical (d) electrical
15. 15.Which of these uses triangles? (a) a round palace roof (b) an old stone bridge (c) a truss bridge side (d) a curved stone doorway
16. 16.🏋️ A force of 110 N did 330 J of work. How many metres did the object move?
17. 17.🔄 What is the FIRST step of the engineering design process? (a) Improve (b) Create (c) Ask (d) Test
18. 18.🪝 What does a single fixed pulley change? (a) the size of the load (b) the colour of rope (c) gravity (d) the direction of pull
19. 19.🛠️ Which of these is a problem an engineer could solve? (a) a boring story (b) a road that floods (c) a lost cricket match (d) a sad song
20. 20.🤝 In a design team, who keeps the design notes? (a) team leader (b) recorder (c) builder (d) materials manager
21. 21.True or false: a coral reef is found in nature. (a) False (b) True
22. 22.Which job does a computer engineer do? (a) designs a paint factory (b) writes app software (c) designs electric motors (d) makes medicines in bulk
23. 23.Which of these is an arch bridge? (a) good for short gaps (b) tall towers hold cables (c) cables tied down at ends (d) a curve under the deck
24. 24.🔧 Which tool would you use to tighten a nut? (a) pliers (b) sandpaper (c) a hammer (d) a spanner
25. 25.🛞 Rubbing your hands fast makes them … (a) cold (b) wet (c) magnetic (d) warm
26. 26.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a glass sheet 3 N, a carpet 4 N, sandpaper 6 N, ice 1 N. How many newtons more were needed on sandpaper than on ice?
27. 27.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
28. 28.🔍 Which is the odd one out? (a) use a cracked tool (b) touch a hot glue tip (c) play near a moving drill (d) let adults use hot glue
29. 29.📐 On a plan, 1 cm stands for 10 m. A wall is 4 cm long on the plan. How long is the real wall, in metres?
30. 30.📋 Your team’s budget is ₹112. You must buy one roll of tape for ₹10. Straws cost ₹4 each. What is the greatest number of straws you can buy?
31. 31.♻️ A school bench is made from 200 recycled plastic bottles. How many benches can be made from 600 bottles?
32. 32.💪 Which force is at work: an apple falls down? (a) friction (b) magnetic force (c) muscular force (d) gravity
33. 33.🪝 A bucket weighing 270 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
34. 34.Which of these uses an arch? (a) a slab over a canal (b) a bicycle frame (c) a plank over a drain (d) a fort gateway
35. 35.📐 How many millimetres are in 1 centimetre? (a) 1000 (b) 10 (c) 5 (d) 100
36. 36.🔍 Which is the odd one out? (a) chalk on a gym bar (b) a wheel on ball bearings (c) a rough doormat (d) a tyre with deep treads
37. 37.⚖️ A seesaw balances. Asha (560 N) sits 2 m from the pivot on one side; Arjun (280 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
38. 38.🔄 Which design-process step is it to fix the weak part? (a) Plan (b) Ask (c) Imagine (d) Improve
39. 39.Which of these needs an electrical conductor? (a) a hair band (b) a switch contact (c) an oven glove (d) a tea flask lining
40. 40.🪝 A winch has a wheel of radius 6 cm and an axle of radius 2 cm. What effort on the wheel lifts a 90 N bucket on the axle, in newtons? (ideal)

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