Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 371 · 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.🔢 To follow the engineering design process, which is the LAST step? (a) Create (b) Imagine (c) Plan (d) Improve
2. 2.🛞 More or less friction: sand on a slippery path? (a) less friction (b) more friction
3. 3.🧪 Why repeat a test three times? (a) to use more paper (b) to get reliable results (c) it looks busy (d) the first is wrong
4. 4.📋 A design meets every criterion but costs more than the budget. Is it acceptable? (a) yes, always (b) only if it is red (c) no, it breaks a limit (d) yes, it works
5. 5.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “sketch three ideas”? (a) sketch three ideas (b) choose and draw one
6. 6.🛠️ Is a ceiling fan made by engineers or found in nature? (a) made by engineers (b) found in nature
7. 7.🤝 A team of 4 shares 12 equal jobs fairly. Each job takes 2 minutes. How many minutes does each person work?
8. 8.True or false: to let adults use hot glue is not safe. (a) False (b) True
9. 9.🔺 Why can an arch carry heavy loads? (a) it bends easily (b) it is very light (c) it works in compression (d) it is hollow
10. 10.True or false: a bicycle is found in nature. (a) True (b) False
11. 11.True or false: “use at most 20 straws” is a criterion (a goal). (a) True (b) False
12. 12.🔺 Which strong shape does a truss bridge side use? (a) beam (b) dome (c) arch (d) triangle
13. 13.🔍 Which is the odd one out? (a) a water tap handle (b) a crowbar (c) a well winch handle (d) a round doorknob
14. 14.True or false: “spend at most ₹100” is a constraint (a limit). (a) False (b) True
15. 15.True or false: “the longest spans of all” is an arch bridge. (a) False (b) True
16. 16.True or false: a rainbow is made by engineers. (a) False (b) True
17. 17.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: sandpaper 13 N, a glass sheet 4 N, a wooden plank 8 N, a carpet 9 N. Which surface gave the most friction? (a) a glass sheet (b) a wooden plank (c) sandpaper (d) a carpet
18. 18.🌉 A beam bridge is 360 m long. Piers split it into equal spans of 45 m. How many spans are there?
19. 19.🛞 Which surface gives the MOST friction to a sliding block? (a) ice (b) glass (c) polished marble (d) sandpaper
20. 20.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) plastic (d) steel
21. 21.🤝 A team of 5 shares 10 equal jobs fairly. Each job takes 10 minutes. How many minutes does each person work?
22. 22.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
23. 23.⚖️ A lever bar balances. The load is 210 N at 30 cm from the fulcrum. The effort is ? N at 30 cm from the fulcrum on the other side. What is the missing force in newtons?
24. 24.🪢 Which material is good in tension but useless in compression? (a) a rope (b) a concrete block (c) a stone (d) a brick
25. 25.🔍 Which is the odd one out? (a) stand in a fan breeze (b) be under 30 cm tall (c) spend at most ₹100 (d) finish in 40 minutes
26. 26.🏋️ A smooth ramp is 8 m long and rises 2 m. What effort pushes a 200 N box up it, in newtons? (ideal ramp, no friction)
27. 27.What does the builder do? (a) keeps the design notes (b) checks the goals are met (c) collects the supplies (d) cuts and joins parts
28. 28.⚖️ A seesaw balances. Zoya (760 N) sits 3 m from the pivot on one side; Kabir (570 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
29. 29.🪝 A load of 180 N hangs from a pulley system in which 2 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
30. 30.🌉 A beam bridge 110 m long is split by piers into 11 equal spans. How long is each span, in metres?
31. 31.🏋️ A force of 90 N pushes a cart 3 m along the floor. How much work is done, in joules?
32. 32.🔍 Which is the odd one out? (a) skating on ice (b) powder on a carrom board (c) a wheel on ball bearings (d) a box pushed on carpet
33. 33.♻️ Which energy source will never run out? (a) diesel (b) sunlight (c) petrol (d) coal
34. 34.🪝 Fixed or movable pulley: which one halves the effort? (a) a movable pulley (b) a fixed pulley
35. 35.True or false: a telephone helps people keep food fresh longer. (a) False (b) True
36. 36.⚖️ In a class 1 lever, what is in the middle? (a) nothing (b) the effort (c) the load (d) the fulcrum
37. 37.🪢 Tension or compression: a swing chain? (a) tension (b) compression
38. 38.🤝 In a design team, who keeps the design notes? (a) recorder (b) team leader (c) materials manager (d) builder
39. 39.🔺 One side of a straw bridge is a row of 3 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
40. 40.⚖️ A seesaw balances. Zoya (? N) sits 2 m from the pivot on one side; Ravi (360 N) sits 4 m from the pivot on the other side. What is the missing weight in newtons?

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