Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 807 · 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 concrete slab weighing 5800 N rests evenly on 2 identical pillars. What compression force does each pillar carry, in newtons?
2. 2.🔍 Which is the odd one out? (a) using a heavy roof (b) building tall and narrow (c) making brittle joints (d) fitting rubber base pads
3. 3.True or false: kicking a football is a push. (a) True (b) False
4. 4.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
5. 5.True or false: a bridge pier is in compression (pushed). (a) True (b) False
6. 6.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
7. 7.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) gravity (c) doubled (d) unbalanced
8. 8.True or false: a roof truss uses a beam. (a) False (b) True
9. 9.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a glass sheet 4 N, a wooden plank 5 N, sandpaper 8 N, ice 3 N. How many newtons more were needed on sandpaper than on ice?
10. 10.📋 For a model bridge challenge, is “float for 1 minute” a constraint or a criterion? (a) a criterion (b) a constraint
11. 11.Which of these uses triangles? (a) an igloo (b) a round palace roof (c) a truss bridge side (d) a fort gateway
12. 12.🛞 More or less friction: a wheel on ball bearings? (a) more friction (b) less friction
13. 13.🪝 A load of 440 N hangs from a pulley system in which 2 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
14. 14.🔄 Is the engineering design process done only once? (a) no, it repeats (b) yes, only once (c) only for big jobs (d) only on Sundays
15. 15.Which job does a biomedical engineer do? (a) designs knee implants (b) designs car engines (c) writes app software (d) designs factory machines
16. 16.True or false: a road up a hill is a pulley. (a) False (b) True
17. 17.⚖️ A lever balances when … (a) the bar is short (b) the fulcrum moves (c) turning effects match (d) both weights are equal
18. 18.💪 A force is a … (a) type of sound (b) unit of time (c) kind of colour (d) push or a pull
19. 19.🛠️ Engineers use maths and which other subject the most? (a) music (b) science (c) dance (d) cooking
20. 20.True or false: to use the same load is good testing. (a) False (b) True
21. 21.🪝 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
22. 22.🤝 In a design team, who shares out the jobs? (a) builder (b) team leader (c) tester (d) materials manager
23. 23.♻️ A school bench is made from 500 recycled plastic bottles. How many benches can be made from 1500 bottles?
24. 24.⚖️ A seesaw balances. Ravi (? N) sits 4 m from the pivot on one side; Arjun (600 N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?
25. 25.True or false: a wet tiled floor gives more friction. (a) True (b) False
26. 26.True or false: “carry 10 coins” is a criterion (a goal). (a) True (b) False
27. 27.⚖️ A seesaw balances. Kabir (600 N) sits 3 m from the pivot on one side; Asha (? N) sits 4 m from the pivot on the other side. What is the missing weight in newtons?
28. 28.True or false: a lift helps people reach a top floor fast. (a) False (b) True
29. 29.True or false: to help a stuck teammate is good teamwork. (a) False (b) True
30. 30.💪 Which force is at work: rubbing hands warms them? (a) friction (b) magnetic force (c) muscular force (d) gravity
31. 31.🔍 Which is the odd one out? (a) leaving out steel bars (b) building tall and narrow (c) using a heavy roof (d) keeping a simple shape
32. 32.🪝 Fixed or movable pulley: which one halves the effort? (a) a fixed pulley (b) a movable pulley
33. 33.Which of these happens in the Create step? (a) list the materials (b) pick the build order (c) follow the plan to build (d) draw a labelled diagram
34. 34.🪝 A load of 260 N hangs from a pulley system in which 2 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
35. 35.📐 On a plan, 1 cm stands for 5 m. A real bridge is 25 m long. How long is it on the plan, in centimetres?
36. 36.🪝 A well winch has a handle (wheel) of radius 6 cm turning an axle of radius 3 cm. What is its mechanical advantage (MA)?
37. 37.🔍 Which is the odd one out? (a) powder on a carrom board (b) a box pushed on carpet (c) a wheel on ball bearings (d) oil on a squeaky hinge
38. 38.🌉 Which bridge type: “the longest spans of all”? (a) arch bridge (b) suspension bridge (c) beam bridge
39. 39.Which of these is in tension (pulled)? (a) a stretched rubber band (b) a stone in an arch (c) a bridge pier (d) a pillar under a roof
40. 40.📋 Your team’s budget is ₹43. You must buy one roll of tape for ₹15. Straws cost ₹5 each. What is the greatest number of straws you can buy?

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