Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 974 · 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.📋 Your team’s budget is ₹132. You must buy one roll of tape for ₹20. Straws cost ₹4 each. What is the greatest number of straws you can buy?
2. 2.True or false: “deck hangs from cables” is a beam bridge. (a) True (b) False
3. 3.True or false: a crowbar is a class 1 lever (fulcrum in the middle). (a) True (b) False
4. 4.True or false: to build the model is the Create step. (a) True (b) False
5. 5.⚖️ A seesaw balances. Ravi (420 N) sits 2 m from the pivot on one side; Asha (? N) sits 3 m from the pivot on the other side. What is the missing weight in newtons?
6. 6.🛞 Why are tyres made with deep treads? (a) to go slower (b) to look nice (c) to grip the road (d) to save rubber
7. 7.📋 For a model bridge challenge, is “fit on a school desk” a constraint or a criterion? (a) a constraint (b) a criterion
8. 8.True or false: a truss bridge side uses a beam. (a) True (b) False
9. 9.📐 On a plan, 1 cm stands for 2 m. A real bridge is 14 m long. How long is it on the plan, in centimetres?
10. 10.📋 Your team’s budget is ₹32. You must buy one roll of tape for ₹15. Straws cost ₹1 each. What is the greatest number of straws you can buy?
11. 11.🔺 A frame shaped like a triangle is made of straws joined by loose pins, with 0 corner-to-corner braces. Is it rigid or wobbly? (a) rigid (b) wobbly
12. 12.🏋️ A machine lifts a load of 400 N when you push with 80 N. What is its mechanical advantage (MA)?
13. 13.True or false: a pair of pliers is a class 1 lever (fulcrum in the middle). (a) False (b) True
14. 14.⚖️ Along a straight bar, measured from the left end, the effort is at 0 cm, the fulcrum at 20 cm and the load at 30 cm. Which class of lever is it? (a) class 2 (b) class 3 (c) class 1
15. 15.What does the materials manager do? (a) cuts and joins parts (b) checks the goals are met (c) puts the model together (d) tracks what is used up
16. 16.📋 For a model bridge challenge, is “use only paper and tape” a constraint or a criterion? (a) a criterion (b) a constraint
17. 17.📋 For a model bridge challenge, is “float for 1 minute” a constraint or a criterion? (a) a constraint (b) a criterion
18. 18.Which of these is a pulley? (a) a crane hook block (b) a wheelchair ramp (c) a screw jack (d) a wood screw
19. 19.🪝 Fixed or movable pulley: which one halves the effort? (a) a fixed pulley (b) a movable pulley
20. 20.⚖️ Turning effect = force × … (a) mass of fulcrum (b) distance from fulcrum (c) time taken (d) colour of bar
21. 21.📐 A model car is drawn so that 1 cm stands for 10 cm. The car is 6 cm long in the drawing. How long is the real car, in centimetres?
22. 22.🧪 What is a prototype? (a) the final product (b) an early test model (c) a broken part (d) a sales poster
23. 23.📋 For a model bridge challenge, is “keep ice for 1 hour” a constraint or a criterion? (a) a criterion (b) a constraint
24. 24.True or false: to carry scissors closed is not safe. (a) False (b) True
25. 25.♻️ Is flowing river water a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
26. 26.🏋️ A smooth ramp is 10 m long and rises 2 m. What effort pushes a 3250 N box up it, in newtons? (ideal ramp, no friction)
27. 27.⚖️ On a seesaw, a heavier child should sit … (a) anywhere (b) closer to the pivot (c) farther from the pivot (d) on the pivot
28. 28.Which need does a train meet? (a) keep food fresh longer (b) make water safe to drink (c) make power from sunlight (d) carry many people far
29. 29.🛠️ Is a dam made by engineers or found in nature? (a) made by engineers (b) found in nature
30. 30.🛠️ People need to make water safe to drink. Which invention helps? (a) a water filter (b) a dam (c) a solar panel (d) a microscope
31. 31.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
32. 32.🔧 Which tool would you use to check a shelf is level? (a) a spirit level (b) a spanner (c) a tape measure (d) pliers
33. 33.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
34. 34.🌉 Which bridge type: “the longest spans of all”? (a) beam bridge (b) suspension bridge (c) arch bridge
35. 35.🔍 Which is the odd one out? (a) use the same load (b) record every result (c) guess, do not measure (d) change only one thing
36. 36.♻️ A school bench is made from 100 recycled plastic bottles. How many benches can be made from 1000 bottles?
37. 37.🧑‍🔧 Which kind of engineer makes medicines in bulk? (a) computer (b) biomedical (c) chemical (d) electrical
38. 38.🔺 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?
39. 39.Which of these is made by engineers? (a) a mountain (b) a seashell (c) a rainbow (d) a satellite
40. 40.True or false: “stand in a fan breeze” is a criterion (a goal). (a) False (b) True

Free engineering lessons, practice and worksheets at talentjr.in/engineering-for-kids