Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 10 · 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.♻️ Reduce, reuse or recycle: fix a dripping tap? (a) reduce (b) recycle (c) reuse
2. 2.True or false: a lift helps people reach a top floor fast. (a) False (b) True
3. 3.📋 A constraint is … (a) a goal for success (b) a limit you must keep to (c) a final test (d) a kind of glue
4. 4.True or false: a rough doormat gives more friction. (a) False (b) True
5. 5.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
6. 6.🏋️ In which unit is work measured? (a) joule (J) (b) newton (N) (c) metre (m) (d) watt hour
7. 7.📋 Constraint: the tower must be no taller than 40 cm. The team’s tower is 38 cm tall. Is it within the constraint? (a) Yes (b) No
8. 8.💪 Two children push a box to the right, one with 65 N and the other with 100 N. What is the net (total) force on the box, in newtons?
9. 9.⚖️ Along a straight bar, measured from the left end, the effort is at 0 cm, the fulcrum at 20 cm and the load at 10 cm. Which class of lever is it? (a) class 2 (b) class 3 (c) class 1
10. 10.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) none (c) two (d) one
11. 11.🔺 Which strong shape does a crane arm use? (a) beam (b) dome (c) arch (d) triangle
12. 12.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
13. 13.⚙️ How many simple machines are there in the usual list? (a) 3 (b) 12 (c) 6 (d) 10
14. 14.🧑‍🔧 Which kind of engineer keeps data safe online? (a) civil (b) chemical (c) aerospace (d) computer
15. 15.📐 On a plan, 1 cm stands for 20 m. A real bridge is 40 m long. How long is it on the plan, in centimetres?
16. 16.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) fitting rubber base pads (c) having a wide base (d) building tall and narrow
17. 17.🪢 Tension or compression: a tent guy rope? (a) tension (b) compression
18. 18.True or false: a fixed pulley hangs on the rope loop. (a) False (b) True
19. 19.🔍 Which is the odd one out? (a) a tow rope on a car (b) a bridge pier (c) a squeezed spring (d) a temple column
20. 20.🤝 In a design team, who checks the goals are met? (a) materials manager (b) team leader (c) tester (d) recorder
21. 21.📐 A model car is drawn so that 1 cm stands for 20 cm. The car is 6 cm long in the drawing. How long is the real car, in centimetres?
22. 22.⚖️ A seesaw balances. Asha (? N) sits 1 m from the pivot on one side; Zoya (170 N) sits 3 m from the pivot on the other side. What is the missing weight in newtons?
23. 23.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a carpet 11 N, ice 3 N, a glass sheet 6 N, a wooden plank 8 N. Which surface gave the most friction? (a) a wooden plank (b) a glass sheet (c) a carpet (d) ice
24. 24.🔍 Which is the odd one out? (a) keep ice for 1 hour (b) stand in a fan breeze (c) lift a cup of water (d) finish in 40 minutes
25. 25.🔢 To follow the engineering design process, which is the FIRST step? (a) Plan (b) Ask (c) Imagine (d) Improve
26. 26.🔄 Which design-process step is it to try it out? (a) Ask (b) Test (c) Imagine (d) Create
27. 27.⚖️ Along a straight bar, measured from the left end, the effort is at 10 cm, the fulcrum at 70 cm and the load at 30 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
28. 28.🪝 A pulley system lifts a 400 N load with an effort of 200 N. What is its mechanical advantage (MA)?
29. 29.🤝 A team plans for 25 minutes, builds for 45 minutes and then tests for 10 minutes, one after another. How many minutes is that in all?
30. 30.🏚️ Three solid model towers are made of the same material. Tower A is 90 cm tall on a 30 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 180 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
31. 31.⚖️ Which class of lever is a wheelbarrow? (a) class 1 (b) class 2 (c) class 3
32. 32.📐 On a plan, 1 cm stands for 2 m. A real bridge is 4 m long. How long is it on the plan, in centimetres?
33. 33.True or false: to hide a mistake is poor teamwork. (a) False (b) True
34. 34.🛠️ Is a bicycle made by engineers or found in nature? (a) made by engineers (b) found in nature
35. 35.🪝 Fixed or movable pulley: which one makes you pull 2× rope? (a) a fixed pulley (b) a movable pulley
36. 36.📋 For a model bridge challenge, is “fit on a school desk” a constraint or a criterion? (a) a constraint (b) a criterion
37. 37.🔍 Which is the odd one out? (a) keep ice for 1 hour (b) fit on a school desk (c) be under 30 cm tall (d) spend at most ₹100
38. 38.Which of these is a beam bridge? (a) a rope bridge in hills (b) a curve under the deck (c) a flat deck on piers (d) cables tied down at ends
39. 39.🔍 Which is the odd one out? (a) a tent guy rope (b) a swing chain (c) a crane lifting cable (d) a tall bridge tower
40. 40.📐 A beam is 950 cm long. How long is it in metres? =

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