Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 279 · 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.True or false: a round palace roof uses triangles. (a) True (b) False
2. 2.🔺 A frame shaped like a square is made of straws joined by loose pins, with 1 corner-to-corner brace. Is it rigid or wobbly? (a) rigid (b) wobbly
3. 3.♻️ A project report has 92 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
4. 4.🏋️ A force of 60 N did 360 J of work. How many metres did the object move?
5. 5.Which of these is a suspension bridge? (a) pushes out on its ends (b) a flat deck on piers (c) tall towers hold cables (d) a curve under the deck
6. 6.📋 For a model bridge challenge, is “hold up 500 g” a constraint or a criterion? (a) a constraint (b) a criterion
7. 7.True or false: a magnifier lens needs a waterproof material. (a) False (b) True
8. 8.🏋️ A force of 340 N did 3060 J of work. How many metres did the object move?
9. 9.True or false: to define the problem is the Improve step. (a) False (b) True
10. 10.📐 On a plan, 1 cm stands for 20 m. A wall is 6 cm long on the plan. How long is the real wall, in metres?
11. 11.True or false: a mountain is found in nature. (a) False (b) True
12. 12.⚖️ A seesaw balances. Asha (? N) sits 2 m from the pivot on one side; Arjun (320 N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?
13. 13.True or false: plucking a mango is a push. (a) True (b) False
14. 14.🌉 Which bridge type: “a rope bridge in hills”? (a) suspension bridge (b) arch bridge (c) beam bridge
15. 15.Which of these uses a beam? (a) a bicycle frame (b) an igloo (c) a truss bridge side (d) a shelf on two brackets
16. 16.⚖️ Which class of lever is a pair of pliers? (a) class 3 (b) class 1 (c) class 2
17. 17.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
18. 18.💪 Two children push a box to the right, one with 75 N and the other with 15 N. What is the net (total) force on the box, in newtons?
19. 19.🧪 Why repeat a test three times? (a) it looks busy (b) the first is wrong (c) to use more paper (d) to get reliable results
20. 20.🔺 How do engineers stop a square frame from wobbling? (a) take off a side (b) add a diagonal brace (c) paint it (d) make it bigger
21. 21.True or false: a tug of war rope is in tension (pulled). (a) True (b) False
22. 22.🏋️ Can a simple machine reduce the work done? (a) yes, always (b) only on Mondays (c) no, work stays the same (d) yes, by half
23. 23.🤝 In a design team, who runs the tests? (a) team leader (b) tester (c) materials manager (d) builder
24. 24.🧪 What is a prototype? (a) the final product (b) an early test model (c) a broken part (d) a sales poster
25. 25.🪝 A bucket weighing 360 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
26. 26.True or false: “carry 10 coins” is a constraint (a limit). (a) True (b) False
27. 27.True or false: a bridge helps people go through a mountain. (a) True (b) False
28. 28.True or false: “a log across a stream” is a beam bridge. (a) True (b) False
29. 29.Which of these is an arch bridge? (a) deck hangs from cables (b) good for short gaps (c) a curve under the deck (d) the longest spans of all
30. 30.🔍 Which is the odd one out? (a) powder on a carrom board (b) a box pushed on carpet (c) oil on a squeaky hinge (d) skating on ice
31. 31.📐 How many millimetres are in 1 centimetre? (a) 5 (b) 100 (c) 1000 (d) 10
32. 32.♻️ Reduce, reuse or recycle: buy less packaging? (a) reduce (b) recycle (c) reuse
33. 33.🏋️ A force of 100 N did 200 J of work. How many metres did the object move?
34. 34.💪 Two children push a box to the right, one with 25 N and the other with 25 N. What is the net (total) force on the box, in newtons?
35. 35.🔺 A frame shaped like a square is made of straws joined by loose pins, with 0 corner-to-corner braces. Is it rigid or wobbly? (a) wobbly (b) rigid
36. 36.🔺 A beam bends under a load. Its top side is … (a) stretched (tension) (b) squeezed (compression) (c) not affected (d) floating
37. 37.True or false: “the simplest bridge” is a beam bridge. (a) False (b) True
38. 38.True or false: to help a stuck teammate is good teamwork. (a) True (b) False
39. 39.🌉 In a stone arch bridge, the stones are in … (a) tension (b) no force (c) compression (d) friction
40. 40.True or false: “cables tied down at ends” is a beam bridge. (a) False (b) True

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