Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 164 · 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 team of 2 shares 8 equal jobs fairly. Each job takes 2 minutes. How many minutes does each person work?
2. 2.🔍 Which is the odd one out? (a) a mobile phone (b) a rainbow (c) a mountain (d) a seashell
3. 3.🔍 Which is the odd one out? (a) steel (b) plastic (c) brass (d) copper
4. 4.🌉 A beam bridge 315 m long is split by piers into 7 equal spans. How long is each span, in metres?
5. 5.🪝 Fixed or movable pulley: which one hangs on the rope loop? (a) a fixed pulley (b) a movable pulley
6. 6.🔺 One side of a straw bridge is a row of 14 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
7. 7.🛠️ What does an engineer mainly do? (a) designs useful solutions (b) sells tickets (c) grows crops (d) only paints pictures
8. 8.True or false: a pair of pliers is a class 1 lever (fulcrum in the middle). (a) True (b) False
9. 9.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 40 cm wide base, tower B is 80 cm tall on a 40 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
10. 10.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
11. 11.True or false: to test it only once is poor testing. (a) True (b) False
12. 12.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
13. 13.🔄 What is the FIRST step of the engineering design process? (a) Improve (b) Ask (c) Create (d) Test
14. 14.🪢 Tension is a force that … (a) pushes or squeezes (b) pulls or stretches (c) heats things (d) turns things
15. 15.🛠️ Engineers use maths and which other subject the most? (a) music (b) cooking (c) science (d) dance
16. 16.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they look nice (c) they bend, not break (d) they are cheap
17. 17.Which need does a microscope meet? (a) carry many people far (b) cross a wide river (c) make water safe to drink (d) see very tiny things
18. 18.Which job is a saw for? (a) turn a screw (b) cut a wooden plank (c) smooth a rough edge (d) check a shelf is level
19. 19.🪢 Tension or compression: a brick at a wall base? (a) tension (b) compression
20. 20.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
21. 21.🏋️ A smooth ramp is 12 m long and rises 3 m. What effort pushes a 2400 N box up it, in newtons? (ideal ramp, no friction)
22. 22.🔢 To follow the engineering design process, which comes first: “Plan” or “Create”? (a) Create (b) Plan
23. 23.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) choose and draw one (b) load it with coins (c) sketch three ideas (d) read the challenge rules
24. 24.True or false: a volcano is found in nature. (a) True (b) False
25. 25.🧑‍🔧 Which kind of engineer wires a new building? (a) mechanical (b) civil (c) electrical (d) biomedical
26. 26.♻️ A family used to throw away 4 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 10 weeks?
27. 27.True or false: to touch a hot glue tip is safe. (a) False (b) True
28. 28.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to test ideas cheaply (c) to avoid testing (d) to decorate a room
29. 29.True or false: “a log across a stream” is an arch bridge. (a) True (b) False
30. 30.📐 A beam is 600 cm long. How long is it in metres? =
31. 31.🛠️ Is a lift made by engineers or found in nature? (a) found in nature (b) made by engineers
32. 32.💪 Which force is at work: a thrown ball comes down? (a) gravity (b) friction (c) muscular force (d) magnetic force
33. 33.📐 A model car is drawn so that 1 cm stands for 40 cm. The car is 14 cm long in the drawing. How long is the real car, in centimetres?
34. 34.🪢 A concrete slab weighing 16800 N rests evenly on 8 identical pillars. What compression force does each pillar carry, in newtons?
35. 35.🌉 Which bridge type: “the longest spans of all”? (a) arch bridge (b) suspension bridge (c) beam bridge
36. 36.📐 On a plan, 1 cm stands for 5 m. A wall is 18 cm long on the plan. How long is the real wall, in metres?
37. 37.🪝 A pulley system lifts a 500 N load with an effort of 250 N. What is its mechanical advantage (MA)?
38. 38.🔺 A flat frame has 9 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 needs an electrical conductor? (a) a skipping rope (b) a switch contact (c) a window pane (d) an oven glove
40. 40.🛠️ Which of these is a problem an engineer could solve? (a) a sad song (b) a lost cricket match (c) a road that floods (d) a boring story

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