Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 495 · 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.🤝 Is it good or poor teamwork to give kind feedback? (a) poor teamwork (b) good teamwork
2. 2.💪 In a tug of war, one team pulls right with 20 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
3. 3.🧱 Which material is best for a raincoat? (a) cotton wool (b) plastic-coated cloth (c) cardboard (d) paper
4. 4.True or false: to try it out is the Ask step. (a) False (b) True
5. 5.♻️ Reduce, reuse or recycle: switch off unused lights? (a) recycle (b) reduce (c) reuse
6. 6.📋 For a model bridge challenge, is “be under 30 cm tall” a constraint or a criterion? (a) a constraint (b) a criterion
7. 7.True or false: a wet tiled floor gives more friction. (a) False (b) True
8. 8.Which of these is reduce (use less)? (a) use a jar as a pen stand (b) print on both sides (c) give old books away (d) turn plastic into tiles
9. 9.Which of these is in tension (pulled)? (a) a pillar under a roof (b) a temple column (c) a suspension cable (d) a bridge pier
10. 10.🤝 Is it good or poor teamwork to talk over others? (a) poor teamwork (b) good teamwork
11. 11.True or false: to guess, do not measure is good testing. (a) True (b) False
12. 12.⚖️ A seesaw balances. Meena (480 N) sits ? m from the pivot on one side; Kabir (240 N) sits 4 m from the pivot on the other side. What is the missing distance in metres?
13. 13.⚖️ A seesaw balances. Asha (360 N) sits 4 m from the pivot on one side; Arjun (? N) sits 3 m from the pivot on the other side. What is the missing weight in newtons?
14. 14.🪝 Fixed or movable pulley: which one hangs on the rope loop? (a) a movable pulley (b) a fixed pulley
15. 15.🏋️ Can a simple machine reduce the work done? (a) yes, by half (b) no, work stays the same (c) only on Mondays (d) yes, always
16. 16.🔍 Which is the odd one out? (a) a seashell (b) a rainbow (c) a banyan tree (d) a mobile phone
17. 17.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
18. 18.🔄 Which design-process step is it to list the materials? (a) Improve (b) Create (c) Plan (d) Test
19. 19.True or false: “the simplest bridge” is a suspension bridge. (a) True (b) False
20. 20.Which job does a civil engineer do? (a) designs a metro tunnel (b) refines crude oil (c) makes medicines in bulk (d) designs power lines
21. 21.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 2 N, a wooden plank 4 N, a carpet 8 N, sandpaper 9 N. Which surface gave the most friction? (a) a carpet (b) a wooden plank (c) sandpaper (d) ice
22. 22.True or false: a train helps people make power from sunlight. (a) False (b) True
23. 23.Which of these is a lever? (a) a seesaw (b) an axe blade (c) a knife edge (d) a well winch handle
24. 24.⚖️ A seesaw balances. Kabir (320 N) sits 4 m from the pivot on one side; Asha (640 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
25. 25.♻️ A family used to throw away 4 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 2 weeks?
26. 26.📋 A constraint is … (a) a kind of glue (b) a goal for success (c) a limit you must keep to (d) a final test
27. 27.True or false: “tall towers hold cables” is a suspension bridge. (a) True (b) False
28. 28.♻️ A school bench is made from 400 recycled plastic bottles. How many benches can be made from 2400 bottles?
29. 29.🛞 More or less friction: a wheel on ball bearings? (a) less friction (b) more friction
30. 30.♻️ Reduce, reuse or recycle: fix a dripping tap? (a) reuse (b) recycle (c) reduce
31. 31.True or false: a biomedical engineer runs a fertiliser plant. (a) False (b) True
32. 32.🔍 Which is the odd one out? (a) a tall bridge tower (b) a bridge pier (c) a stone in an arch (d) a tow rope on a car
33. 33.🔄 Which design-process step is it to make it better, retest? (a) Imagine (b) Test (c) Create (d) Improve
34. 34.🪝 A pulley system lifts a 180 N load with an effort of 60 N. What is its mechanical advantage (MA)?
35. 35.Which job does a computer engineer do? (a) keeps data safe online (b) designs knee implants (c) designs a flyover (d) designs car engines
36. 36.🛠️ What does an engineer mainly do? (a) sells tickets (b) only paints pictures (c) grows crops (d) designs useful solutions
37. 37.📐 On a plan, 1 cm stands for 2 m. A wall is 7 cm long on the plan. How long is the real wall, in metres?
38. 38.🔺 One side of a straw bridge is a row of 12 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
39. 39.📋 Constraint: the tower must be no taller than 30 cm. The team’s tower is 34 cm tall. Is it within the constraint? (a) No (b) Yes
40. 40.True or false: to make it better, retest is the Imagine step. (a) False (b) True

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