Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 185 · 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.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a microscope (c) a fridge (d) a shake table
2. 2.True or false: to measure its performance is the Test step. (a) False (b) True
3. 3.📐 A beam is 250 cm long. How long is it in metres? =
4. 4.Which of these happens in the Plan step? (a) ask who will use it (b) try it out (c) draw a labelled diagram (d) check it against goals
5. 5.Which of these is recycle (make new things)? (a) give old books away (b) melt cans into new cans (c) buy less packaging (d) print on both sides
6. 6.🔍 Which is the odd one out? (a) a jar lid (b) a wood screw (c) a water tap handle (d) a screw jack
7. 7.📐 Why do engineers use scale drawings? (a) to hide sizes (b) to make them pretty (c) big things fit on paper (d) to save ink only
8. 8.🌉 What holds up a long beam bridge in the middle? (a) piers (b) balloons (c) cables only (d) nothing
9. 9.Which of these is made by engineers? (a) a railway track (b) a waterfall (c) a mountain (d) a river
10. 10.Which of these is a screw? (a) a jar lid (b) a road up a hill (c) a door stopper (d) a round doorknob
11. 11.📋 Criterion: the model bridge must hold at least 800 g. In the test it held 700 g. Does it meet the criterion? (a) No (b) Yes
12. 12.🏋️ A force of 420 N pushes a cart 9 m along the floor. How much work is done, in joules?
13. 13.💪 A cart is pulled to the right with 80 N and to the left with 80 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
14. 14.🔺 Which strong shape does a bicycle frame use? (a) triangle (b) dome (c) arch (d) beam
15. 15.🔢 To follow the engineering design process, what comes right after “Imagine”? (a) Test (b) Plan (c) Ask (d) Improve
16. 16.🔍 Which is the odd one out? (a) graphite (b) cotton cloth (c) plastic (d) clay pottery
17. 17.🛠️ People need to reach a top floor fast. Which invention helps? (a) a lift (b) a fridge (c) a telephone (d) a dam
18. 18.🤝 A teammate’s idea seems odd. What should you do first? (a) ignore it (b) laugh at it (c) listen and ask why (d) walk away
19. 19.🛠️ People need to make power from sunlight. Which invention helps? (a) a solar panel (b) a dam (c) a microscope (d) a water filter
20. 20.🧑‍🔧 Which kind of engineer designs car engines? (a) civil (b) mechanical (c) electrical (d) chemical
21. 21.Which of these is a beam bridge? (a) pushes out on its ends (b) cables tied down at ends (c) a log across a stream (d) tall towers hold cables
22. 22.📋 Your team’s budget is ₹80. You must buy one roll of tape for ₹5. Straws cost ₹4 each. What is the greatest number of straws you can buy?
23. 23.🛠️ What does an engineer do before building anything? (a) builds at once (b) paints the model (c) understands the problem (d) buys every material
24. 24.What does the recorder do? (a) keeps the team on track (b) cuts and joins parts (c) collects the supplies (d) keeps the design notes
25. 25.True or false: a playground slide is an inclined plane. (a) False (b) True
26. 26.Which job does a mechanical engineer do? (a) designs car engines (b) designs artificial limbs (c) plans a dam (d) designs knee implants
27. 27.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
28. 28.Which of these is an arch bridge? (a) a flat deck on piers (b) pushes out on its ends (c) cables tied down at ends (d) good for short gaps
29. 29.True or false: to use the same load is poor testing. (a) True (b) False
30. 30.⚖️ A seesaw balances. Zoya (? N) sits 2 m from the pivot on one side; Asha (400 N) sits 1 m from the pivot on the other side. What is the missing weight in newtons?
31. 31.🔍 Which is the odd one out? (a) a tall bridge tower (b) a suspension cable (c) a tow rope on a car (d) a swing chain
32. 32.⚖️ A lever bar balances. The load is 360 N at 50 cm from the fulcrum. The effort is ? N at 90 cm from the fulcrum on the other side. What is the missing force in newtons?
33. 33.🛠️ Is a bridge made by engineers or found in nature? (a) made by engineers (b) found in nature
34. 34.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
35. 35.🪝 Fixed or movable pulley: which one hangs on the rope loop? (a) a movable pulley (b) a fixed pulley
36. 36.🛞 Which surface gives the MOST friction to a sliding block? (a) glass (b) sandpaper (c) polished marble (d) ice
37. 37.Which of these uses a beam? (a) an electric pylon (b) a truss bridge side (c) a lintel over a door (d) a crane arm
38. 38.🤝 A team of 4 shares 8 equal jobs fairly. Each job takes 5 minutes. How many minutes does each person work?
39. 39.🏋️ A 20 kg box is lifted straight up by 3 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
40. 40.⚖️ Along a straight bar, measured from the left end, the effort is at 50 cm, the fulcrum at 30 cm and the load at 70 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1

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