Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 798 · 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.♻️ A family used to throw away 8 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 11 weeks?
2. 2.⚖️ A seesaw balances. Zoya (260 N) sits 1 m from the pivot on one side; Ravi (130 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
3. 3.📐 On a plan, 1 cm stands for 20 m. A real bridge is 200 m long. How long is it on the plan, in centimetres?
4. 4.Which of these needs a flexible material? (a) an oven glove (b) a raincoat (c) a plug pin (d) a skipping rope
5. 5.True or false: a yoga mat needs a flexible material. (a) False (b) True
6. 6.Which of these is in tension (pulled)? (a) a squeezed spring (b) a pillar under a roof (c) a table leg (d) a tent guy rope
7. 7.🔍 Which is the odd one out? (a) guess, do not measure (b) change only one thing (c) use the same load (d) repeat each test
8. 8.🔄 Is the engineering design process done only once? (a) only on Sundays (b) yes, only once (c) no, it repeats (d) only for big jobs
9. 9.🪝 A bucket weighing 150 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
10. 10.🪢 Tension or compression: a hanging lamp chain? (a) tension (b) compression
11. 11.♻️ A school bench is made from 350 recycled plastic bottles. How many benches can be made from 1750 bottles?
12. 12.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
13. 13.⚖️ A seesaw balances. Kabir (? N) sits 1 m from the pivot on one side; Asha (160 N) sits 3 m from the pivot on the other side. What is the missing weight in newtons?
14. 14.🤝 A team of 2 shares 10 equal jobs fairly. Each job takes 5 minutes. How many minutes does each person work?
15. 15.🤝 In a design team, who runs the tests? (a) tester (b) team leader (c) recorder (d) builder
16. 16.♻️ A project report has 22 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
17. 17.🏋️ A longer ramp to the same height needs … (a) more effort (b) no effort (c) the same effort (d) less effort
18. 18.🔺 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?
19. 19.🔄 After testing, a design does not work well. What comes next? (a) give up (b) Imagine (c) Ask (d) Improve
20. 20.🔍 Which is the odd one out? (a) spend at most ₹100 (b) use only paper and tape (c) finish in 40 minutes (d) stand in a fan breeze
21. 21.📐 On a plan, 1 cm stands for 10 m. A real bridge is 100 m long. How long is it on the plan, in centimetres?
22. 22.True or false: “use only paper and tape” is a criterion (a goal). (a) False (b) True
23. 23.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) read the challenge rules (b) load it with coins (c) build it with straws (d) choose and draw one
24. 24.🛞 More or less friction: a rough doormat? (a) more friction (b) less friction
25. 25.🧪 Why repeat a test three times? (a) it looks busy (b) to get reliable results (c) to use more paper (d) the first is wrong
26. 26.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
27. 27.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 180 g. How many more grams did it hold?
28. 28.♻️ Is sunlight a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
29. 29.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “load it with coins”? (a) strengthen the weak part (b) load it with coins
30. 30.🪢 A beam rests on two supports and is pressed down in the middle. Its bottom edge is … (a) twisted (b) not affected (c) squeezed (compression) (d) stretched (tension)
31. 31.📐 A model car is drawn so that 1 cm stands for 20 cm. The car is 4 cm long in the drawing. How long is the real car, in centimetres?
32. 32.🔺 Which strong shape does a slab over a canal use? (a) triangle (b) dome (c) beam (d) arch
33. 33.Which of these is a wedge? (a) a jar lid (b) a knife edge (c) a well winch handle (d) a crane hook block
34. 34.Which of these uses an arch? (a) a crane arm (b) an electric pylon (c) an old stone bridge (d) an igloo
35. 35.🪝 A bucket weighing 70 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
36. 36.True or false: a stone in an arch is in compression (pushed). (a) False (b) True
37. 37.Which of these uses a dome? (a) a slab over a canal (b) a roof truss (c) a fort gateway (d) a round palace roof
38. 38.🤝 How do engineers share a design with others? (a) secret notes (b) no drawings at all (c) only talking fast (d) clear labelled sketches
39. 39.True or false: a knife edge is a pulley. (a) True (b) False
40. 40.🔢 To follow the engineering design process, which comes first: “Ask” or “Plan”? (a) Plan (b) Ask

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