Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 52 · 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 branch of engineering uses engineering to help doctors? (a) electrical (b) civil (c) aerospace (d) biomedical
2. 2.True or false: a biomedical engineer designs a flyover. (a) False (b) True
3. 3.🔍 Which is the odd one out? (a) spend at most ₹100 (b) use only paper and tape (c) keep ice for 1 hour (d) be under 30 cm tall
4. 4.Which of these is recycle (make new things)? (a) give old books away (b) carry a cloth bag (c) turn plastic into tiles (d) print on both sides
5. 5.⚙️ Which simple machine is a playground slide? (a) pulley (b) lever (c) wedge (d) inclined plane
6. 6.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
7. 7.🪝 Fixed or movable pulley: which one stays in one place? (a) a movable pulley (b) a fixed pulley
8. 8.🧪 A paper bridge was tested three times. It held 350 g, 200 g and 230 g. What is the mean (average) load it held, in grams?
9. 9.Which of these happens in the Ask step? (a) brainstorm many ideas (b) think of wild ideas (c) check it against goals (d) ask who will use it
10. 10.True or false: a lift is made by engineers. (a) False (b) True
11. 11.Which of these is made by engineers? (a) a mobile phone (b) a mountain (c) a banyan tree (d) a seashell
12. 12.Which of these happens in the Test step? (a) find the limits (b) make it better, retest (c) brainstorm many ideas (d) try it out
13. 13.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) leaving out steel bars (c) using a light roof (d) stacking loose bricks
14. 14.🔄 Which design-process step is it to find the limits? (a) Imagine (b) Create (c) Ask (d) Test
15. 15.🌉 Which bridge type: “the simplest bridge”? (a) suspension bridge (b) beam bridge (c) arch bridge
16. 16.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
17. 17.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
18. 18.True or false: a pair of pliers is a class 3 lever (effort in the middle). (a) True (b) False
19. 19.⚖️ Which class of lever is a pair of scissors? (a) class 2 (b) class 3 (c) class 1
20. 20.🏋️ A machine lifts a load of 320 N when you push with 160 N. What is its mechanical advantage (MA)?
21. 21.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
22. 22.🌉 A beam bridge is 280 m long. Piers split it into equal spans of 35 m. How many spans are there?
23. 23.Which of these is made by engineers? (a) a volcano (b) a banyan tree (c) a rainbow (d) a bridge
24. 24.📐 On a plan, 1 cm stands for 10 m. A wall is 2 cm long on the plan. How long is the real wall, in metres?
25. 25.🤝 Is it good or poor teamwork to share the work fairly? (a) poor teamwork (b) good teamwork
26. 26.🛞 Which surface gives the MOST friction to a sliding block? (a) ice (b) glass (c) polished marble (d) sandpaper
27. 27.🔺 A flat frame has 8 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
28. 28.🔍 Which is the odd one out? (a) leave tools on the floor (b) play near a moving drill (c) tie back long hair (d) touch a hot glue tip
29. 29.🌉 In a stone arch bridge, the stones are in … (a) tension (b) friction (c) no force (d) compression
30. 30.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) chemical (b) computer (c) civil (d) biomedical
31. 31.True or false: a bridge pier is in compression (pushed). (a) False (b) True
32. 32.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) choose and draw one (b) read the challenge rules (c) strengthen the weak part (d) load it with coins
33. 33.♻️ Is wind a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
34. 34.Which job does a chemical engineer do? (a) lays out a highway (b) plans a power grid (c) designs a metro tunnel (d) designs a paint factory
35. 35.⚖️ A lever bar balances. The load is 160 N at ? cm from the fulcrum. The effort is 240 N at 20 cm from the fulcrum on the other side. What is the missing distance in centimetres?
36. 36.🤝 A team of 4 shares 8 equal jobs fairly. Each job takes 10 minutes. How many minutes does each person work?
37. 37.🌉 In a suspension bridge, the main cables are in … (a) compression (b) no force (c) tension (d) friction
38. 38.⚙️ How many simple machines are there in the usual list? (a) 10 (b) 12 (c) 6 (d) 3
39. 39.⚖️ To lift a heavy rock with a crowbar more easily, push … (a) on the fulcrum (b) far from the fulcrum (c) near the fulcrum (d) on the rock
40. 40.⚖️ Along a straight bar, measured from the left end, the effort is at 110 cm, the fulcrum at 30 cm and the load at 70 cm. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2

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