Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 874 · 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 reuse (use again)? (a) fix a dripping tap (b) reuse gift paper (c) print on both sides (d) turn plastic into tiles
2. 2.📐 On a plan, 1 cm stands for 5 m. A real bridge is 70 m long. How long is it on the plan, in centimetres?
3. 3.🤝 A team of 5 shares 20 equal jobs fairly. Each job takes 10 minutes. How many minutes does each person work?
4. 4.🦺 In the workshop, is it safe to clamp wood before sawing? (a) safe (b) not safe
5. 5.🔺 A frame shaped like a hexagon is made of straws joined by loose pins, with 0 corner-to-corner braces. Is it rigid or wobbly? (a) rigid (b) wobbly
6. 6.True or false: a mechanical engineer designs aeroplane wings. (a) False (b) True
7. 7.Which job does a biomedical engineer do? (a) builds rockets (b) designs a flyover (c) designs a gearbox (d) designs artificial limbs
8. 8.📋 Your team’s budget is ₹16. You must buy one roll of tape for ₹5. Straws cost ₹1 each. What is the greatest number of straws you can buy?
9. 9.Which of these is found in nature? (a) a seashell (b) a mobile phone (c) a railway track (d) a ceiling fan
10. 10.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) build it with straws (b) read the challenge rules (c) strengthen the weak part (d) sketch three ideas
11. 11.📋 A design meets every criterion but costs more than the budget. Is it acceptable? (a) yes, it works (b) no, it breaks a limit (c) only if it is red (d) yes, always
12. 12.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) having a wide base (c) stacking loose bricks (d) using flexible joints
13. 13.🔍 Which is the odd one out? (a) a wheelchair ramp (b) a nutcracker (c) a crowbar (d) a claw hammer on a nail
14. 14.🪝 A pulley system lifts a 390 N load with an effort of 130 N. What is its mechanical advantage (MA)?
15. 15.⚖️ In a class 1 lever, what is in the middle? (a) the fulcrum (b) the load (c) nothing (d) the effort
16. 16.🤝 How do engineers share a design with others? (a) clear labelled sketches (b) secret notes (c) no drawings at all (d) only talking fast
17. 17.💪 Which force is at work: a thrown ball comes down? (a) gravity (b) muscular force (c) friction (d) magnetic force
18. 18.🪝 Fixed or movable pulley: which one needs effort = load? (a) a fixed pulley (b) a movable pulley
19. 19.🌉 Which bridge type: “deck hangs from cables”? (a) suspension bridge (b) beam bridge (c) arch bridge
20. 20.🔄 In which step do engineers draw a labelled diagram? (a) Test (b) Ask (c) Improve (d) Plan
21. 21.True or false: a chemical engineer makes medicines in bulk. (a) True (b) False
22. 22.⚖️ Along a straight bar, measured from the left end, the effort is at 0 cm, the fulcrum at 70 cm and the load at 30 cm. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
23. 23.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “load it with coins”? (a) load it with coins (b) read the challenge rules
24. 24.True or false: a solar panel helps people reach a top floor fast. (a) False (b) True
25. 25.🔺 One side of a straw bridge is a row of 13 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
26. 26.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) heat insulator (c) transparent (d) flexible
27. 27.True or false: to cut towards your hand is not safe. (a) True (b) False
28. 28.🤝 A team plans for 15 minutes, builds for 50 minutes and then tests for 25 minutes, one after another. How many minutes is that in all?
29. 29.⚖️ What is the pivot point of a lever called? (a) the load (b) the fulcrum (c) the axle (d) the effort
30. 30.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
31. 31.⚖️ Which class of lever is a pair of scissors? (a) class 3 (b) class 1 (c) class 2
32. 32.💪 In which unit do we measure force? (a) second (s) (b) litre (L) (c) newton (N) (d) metre (m)
33. 33.🌉 What holds up a long beam bridge in the middle? (a) nothing (b) balloons (c) cables only (d) piers
34. 34.🔍 Which is the odd one out? (a) iron (b) graphite (c) copper (d) cotton cloth
35. 35.♻️ A project report has 84 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
36. 36.💪 Which force is at work: a river flows downhill? (a) muscular force (b) gravity (c) friction (d) magnetic force
37. 37.What does the builder do? (a) checks the goals are met (b) cuts and joins parts (c) tracks what is used up (d) collects the supplies
38. 38.⚙️ Which simple machine is a seesaw? (a) wheel and axle (b) wedge (c) pulley (d) lever
39. 39.🏋️ A smooth ramp is 5 m long and rises 1 m. What effort pushes a 1000 N box up it, in newtons? (ideal ramp, no friction)
40. 40.True or false: “use only paper and tape” is a constraint (a limit). (a) False (b) True

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