Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 510 · 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.💪 In a tug of war, one team pulls left with 15 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
2. 2.True or false: “float for 1 minute” is a constraint (a limit). (a) False (b) True
3. 3.🌉 A beam bridge 90 m long rests on the two river banks and on piers in between, making equal spans of 30 m. How many piers are there?
4. 4.🧱 Which property matters most for a roof sheet? (a) flexible (b) heat insulator (c) transparent (d) waterproof
5. 5.🧱 Which property matters most for a boat hull? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
6. 6.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
7. 7.True or false: a chemical engineer runs a fertiliser plant. (a) True (b) False
8. 8.True or false: a beam balance is a class 3 lever (effort in the middle). (a) False (b) True
9. 9.🔺 Which strong shape does a lintel over a door use? (a) triangle (b) dome (c) arch (d) beam
10. 10.🔧 Which tool would you use to measure an angle? (a) a spirit level (b) a saw (c) a tape measure (d) a protractor
11. 11.True or false: a seashell is made by engineers. (a) False (b) True
12. 12.True or false: a seashell is found in nature. (a) False (b) True
13. 13.🔍 Which is the odd one out? (a) carry 10 coins (b) roll at least 2 metres (c) spend at most ₹100 (d) float for 1 minute
14. 14.⚖️ Going along a lever from one end to the other, the order is: fulcrum, effort, load. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
15. 15.⚙️ Which simple machine is a chisel? (a) wheel and axle (b) wedge (c) pulley (d) lever
16. 16.🌉 In a stone arch bridge, the stones are in … (a) no force (b) friction (c) compression (d) tension
17. 17.True or false: a brick at a wall base is in compression (pushed). (a) True (b) False
18. 18.🌉 A beam bridge 550 m long rests on the two river banks and on piers in between, making equal spans of 50 m. How many piers are there?
19. 19.True or false: to help a stuck teammate is poor teamwork. (a) True (b) False
20. 20.Which of these uses a dome? (a) a curved stone doorway (b) a crane arm (c) an electric pylon (d) a round palace roof
21. 21.💪 Which can a force NOT do? (a) start it moving (b) stop it moving (c) change its colour (d) change its shape
22. 22.Which of these is in compression (pushed)? (a) a tow rope on a car (b) a tent guy rope (c) a hanging lamp chain (d) a squeezed spring
23. 23.🪝 A wheel and axle is a big wheel fixed to … (a) a smaller rod (axle) (b) a sharp wedge (c) a flat ramp (d) a loose rope
24. 24.🔧 Which tool would you use to make a hole in wood? (a) a hammer (b) a protractor (c) a screwdriver (d) a hand drill
25. 25.📐 On a plan, 1 cm stands for 5 m. A wall is 7 cm long on the plan. How long is the real wall, in metres?
26. 26.🛠️ Is a volcano made by engineers or found in nature? (a) made by engineers (b) found in nature
27. 27.♻️ A sustainable design … (a) wastes water (b) lasts one day (c) uses the most plastic (d) protects the future
28. 28.⚙️ Which simple machine is a knife edge? (a) lever (b) pulley (c) wheel and axle (d) wedge
29. 29.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) aluminium (c) copper (d) iron
30. 30.📐 A model car is drawn so that 1 cm stands for 30 cm. The car is 7 cm long in the drawing. How long is the real car, in centimetres?
31. 31.Which of these uses an arch? (a) a round palace roof (b) a curved stone doorway (c) a crane arm (d) a plank over a drain
32. 32.Which job is a spirit level for? (a) check a shelf is level (b) measure an angle (c) grip and bend wire (d) turn a screw
33. 33.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) heat insulator (c) flexible (d) transparent
34. 34.🤝 A team plans for 60 minutes, builds for 15 minutes and then tests for 25 minutes, one after another. How many minutes is that in all?
35. 35.Which of these is reduce (use less)? (a) reuse gift paper (b) melt cans into new cans (c) fix a dripping tap (d) refill a water bottle
36. 36.⚖️ A lever bar balances. The load is 90 N at 10 cm from the fulcrum. The effort is 30 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
37. 37.⚖️ A seesaw balances. Zoya (570 N) sits ? m from the pivot on one side; Arjun (190 N) sits 3 m from the pivot on the other side. What is the missing distance in metres?
38. 38.True or false: a lift is found in nature. (a) False (b) True
39. 39.📐 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?
40. 40.🦺 In the workshop, is it safe to carry scissors closed? (a) not safe (b) safe

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