Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 286 · 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.🔺 One side of a straw bridge is a row of 8 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
2. 2.Which need does a train meet? (a) store water for summer (b) cross a wide river (c) carry many people far (d) see very tiny things
3. 3.Which of these is found in nature? (a) a satellite (b) a banyan tree (c) a ceiling fan (d) a mobile phone
4. 4.True or false: a mechanical engineer designs bicycle gears. (a) True (b) False
5. 5.💪 Two children push a box to the right, one with 60 N and the other with 15 N. What is the net (total) force on the box, in newtons?
6. 6.🤝 Is it good or poor teamwork to talk over others? (a) good teamwork (b) poor teamwork
7. 7.🪝 Fixed or movable pulley: which one halves the effort? (a) a fixed pulley (b) a movable pulley
8. 8.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) steel (d) rubber
9. 9.🦺 In the workshop, is it safe to run while holding tools? (a) safe (b) not safe
10. 10.🪝 What does a single fixed pulley change? (a) gravity (b) the colour of rope (c) the size of the load (d) the direction of pull
11. 11.🔄 After testing, a design does not work well. What comes next? (a) give up (b) Ask (c) Improve (d) Imagine
12. 12.True or false: a road up a hill is a screw. (a) True (b) False
13. 13.⚙️ Which simple machine is a claw hammer on a nail? (a) wheel and axle (b) pulley (c) lever (d) inclined plane
14. 14.Which need does a lift meet? (a) make water safe to drink (b) reach a top floor fast (c) cross a wide river (d) keep food fresh longer
15. 15.🪝 A pulley system has 1 rope section holding up the load. To lift the load by 6 m, how many metres of rope must you pull?
16. 16.True or false: “finish in 40 minutes” is a criterion (a goal). (a) True (b) False
17. 17.🔺 Which strong shape does a bicycle frame use? (a) beam (b) arch (c) dome (d) triangle
18. 18.📐 Why do engineers use scale drawings? (a) to save ink only (b) to hide sizes (c) big things fit on paper (d) to make them pretty
19. 19.🪝 Fixed or movable pulley: which one stays in one place? (a) a fixed pulley (b) a movable pulley
20. 20.Which job does an electrical engineer do? (a) designs power lines (b) designs factory machines (c) builds rockets (d) plans a dam
21. 21.📐 A beam is 120 cm long. How long is it in metres? =
22. 22.⚙️ Which simple machine is the tip of a nail? (a) pulley (b) wheel and axle (c) lever (d) wedge
23. 23.💪 A bag has a mass of 46 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
24. 24.💪 In which unit do we measure force? (a) newton (N) (b) litre (L) (c) metre (m) (d) second (s)
25. 25.🧱 Which material is best for a window pane? (a) steel (b) brick (c) glass (d) wood
26. 26.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) adding cross bracing (c) making brittle joints (d) using flexible joints
27. 27.True or false: “tall towers hold cables” is an arch bridge. (a) False (b) True
28. 28.True or false: a microscope helps people carry many people far. (a) False (b) True
29. 29.Which of these is in compression (pushed)? (a) a tug of war rope (b) a pillar under a roof (c) a tent guy rope (d) a hanging lamp chain
30. 30.📋 A constraint is … (a) a goal for success (b) a limit you must keep to (c) a kind of glue (d) a final test
31. 31.Which job does a mechanical engineer do? (a) designs factory machines (b) designs satellites (c) designs electric motors (d) builds rockets
32. 32.🔄 What is the FIRST step of the engineering design process? (a) Ask (b) Improve (c) Test (d) Create
33. 33.💪 Which force pulls everything towards the Earth? (a) friction (b) gravity (c) magnetism (d) wind
34. 34.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 1 N, a wooden plank 3 N, a carpet 4 N, sandpaper 5 N. Which surface gave the least friction? (a) ice (b) sandpaper (c) a wooden plank (d) a carpet
35. 35.🏋️ A 12 kg box is lifted straight up by 2 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
36. 36.What does the materials manager do? (a) cuts and joins parts (b) tracks what is used up (c) runs the tests (d) keeps the team on track
37. 37.Which of these happens in the Ask step? (a) make it better, retest (b) redesign after testing (c) find the limits (d) try it out
38. 38.True or false: a civil engineer lays out a highway. (a) False (b) True
39. 39.Which of these is caused by gravity? (a) pedalling a cycle (b) a thrown ball comes down (c) brakes stop a bicycle (d) a fridge magnet sticks
40. 40.⚖️ A seesaw balances. Asha (? N) sits 4 m from the pivot on one side; Zoya (640 N) sits 4 m from the pivot on the other side. What is the missing weight in newtons?

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