Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 479 · 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 of these is found in nature? (a) a volcano (b) a ceiling fan (c) a lift (d) a railway track
2. 2.🏋️ A force of 150 N did 1500 J of work. How many metres did the object move?
3. 3.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
4. 4.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
5. 5.🔍 Which is the odd one out? (a) a bottle cap (b) a nut and bolt (c) an axe blade (d) a wood screw
6. 6.True or false: an oven glove needs a heat insulator. (a) False (b) True
7. 7.⚖️ A seesaw balances. Meena (240 N) sits 2 m from the pivot on one side; Arjun (? N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?
8. 8.⚖️ Along a straight bar, measured from the left end, the effort is at 20 cm, the fulcrum at 50 cm and the load at 30 cm. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
9. 9.💪 Two children push a box to the right, one with 35 N and the other with 50 N. What is the net (total) force on the box, in newtons?
10. 10.💪 In a tug of war, one team pulls left with 20 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
11. 11.🔍 Which is the odd one out? (a) a wheel on ball bearings (b) oil on a squeaky hinge (c) skating on ice (d) sand on a slippery path
12. 12.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
13. 13.📋 Constraint: the tower must be no taller than 30 cm. The team’s tower is 28 cm tall. Is it within the constraint? (a) Yes (b) No
14. 14.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
15. 15.📋 For a model bridge challenge, is “float for 1 minute” a constraint or a criterion? (a) a constraint (b) a criterion
16. 16.🔺 Which strong shape does a shelf on two brackets use? (a) arch (b) triangle (c) beam (d) dome
17. 17.🏋️ Can a simple machine reduce the work done? (a) yes, by half (b) no, work stays the same (c) only on Mondays (d) yes, always
18. 18.True or false: an electrical engineer designs a flyover. (a) False (b) True
19. 19.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
20. 20.🔍 Which is the odd one out? (a) a pillar under a roof (b) a stretched rubber band (c) a tug of war rope (d) a tow rope on a car
21. 21.Which of these is made by engineers? (a) a seashell (b) a volcano (c) a ceiling fan (d) a cloud
22. 22.🔺 A flat frame has 12 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
23. 23.True or false: a temple column is in tension (pulled). (a) False (b) True
24. 24.Which of these uses triangles? (a) a crane arm (b) an old stone bridge (c) a round palace roof (d) a plank over a drain
25. 25.🔄 Is the engineering design process done only once? (a) only for big jobs (b) no, it repeats (c) yes, only once (d) only on Sundays
26. 26.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 160 g. How many more grams did it hold?
27. 27.⚖️ Which class of lever is a pair of kitchen tongs? (a) class 2 (b) class 3 (c) class 1
28. 28.♻️ Which is the BEST order to think about waste? (a) burn, bury, forget (b) recycle, reuse, reduce (c) reduce, reuse, recycle (d) reuse, recycle, reduce
29. 29.⚖️ A lever bar balances. The load is 60 N at 30 cm from the fulcrum. The effort is ? N at 60 cm from the fulcrum on the other side. What is the missing force in newtons?
30. 30.🤝 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
31. 31.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
32. 32.🏋️ Work is done when a force moves something … (a) only upwards (b) very slowly (c) through a distance (d) without moving it
33. 33.🔢 To follow the engineering design process, which comes first: “Ask” or “Imagine”? (a) Imagine (b) Ask
34. 34.⚖️ Going along a lever from one end to the other, the order is: load, effort, fulcrum. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
35. 35.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 220 g and design C held 320 g. Which design was the strongest? (a) design A (b) design B (c) design C
36. 36.⚖️ Which class of lever is a seesaw? (a) class 2 (b) class 1 (c) class 3
37. 37.🔍 Which is the odd one out? (a) leave tools on the floor (b) touch a hot glue tip (c) carry scissors closed (d) run while holding tools
38. 38.💪 Which force is at work: an apple falls down? (a) friction (b) gravity (c) muscular force (d) magnetic force
39. 39.🛠️ Is a water filter made by engineers or found in nature? (a) found in nature (b) made by engineers
40. 40.True or false: a civil engineer lays out a highway. (a) False (b) True

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