Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 411 · 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.True or false: a civil engineer designs a paint factory. (a) True (b) False
2. 2.True or false: oil on a squeaky hinge gives less friction. (a) False (b) True
3. 3.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) aluminium (d) wood or plastic
4. 4.🪝 A well winch has a handle (wheel) of radius 2 cm turning an axle of radius 1 cm. What is its mechanical advantage (MA)?
5. 5.🔍 Which is the odd one out? (a) using a light roof (b) having a wide base (c) fitting rubber base pads (d) leaving out steel bars
6. 6.🔍 Which is the odd one out? (a) touch a hot glue tip (b) tie back long hair (c) wear safety goggles (d) carry scissors closed
7. 7.Which of these is recycle (make new things)? (a) melt cans into new cans (b) give old books away (c) reuse gift paper (d) print on both sides
8. 8.🧪 Why repeat a test three times? (a) to use more paper (b) it looks busy (c) to get reliable results (d) the first is wrong
9. 9.🪢 A sign weighing 150 N hangs from 3 identical vertical ropes that share the load equally. What is the tension in each rope, in newtons?
10. 10.📐 On a plan, 1 cm stands for 10 m. A wall is 18 cm long on the plan. How long is the real wall, in metres?
11. 11.🦺 Who should use hot glue guns and power tools in a kids’ project? (a) a stranger (b) the youngest child (c) an adult (d) any child alone
12. 12.💪 Which can a force NOT do? (a) stop it moving (b) start it moving (c) change its shape (d) change its colour
13. 13.🏋️ A force of 340 N did 1020 J of work. How many metres did the object move?
14. 14.🏋️ Mechanical advantage (MA) = … (a) load + effort (b) load × effort (c) load ÷ effort (d) effort ÷ load
15. 15.What does the recorder do? (a) collects the supplies (b) writes down results (c) tracks what is used up (d) puts the model together
16. 16.Which job does a chemical engineer do? (a) designs power lines (b) makes medicines in bulk (c) designs satellites (d) designs a flyover
17. 17.⚖️ To lift a heavy rock with a crowbar more easily, push … (a) on the rock (b) on the fulcrum (c) near the fulcrum (d) far from the fulcrum
18. 18.🔄 Which design-process step is it to check it against goals? (a) Plan (b) Test (c) Ask (d) Improve
19. 19.🔺 A frame shaped like a triangle is made of straws joined by loose pins, with 0 corner-to-corner braces. Is it rigid or wobbly? (a) wobbly (b) rigid
20. 20.🔍 Which is the odd one out? (a) a bridge pier (b) a swing chain (c) a table leg (d) a tall bridge tower
21. 21.🔍 Which is the odd one out? (a) rubber (b) iron (c) glass (d) cotton cloth
22. 22.True or false: to hide a failed test is good testing. (a) False (b) True
23. 23.🏋️ A longer ramp to the same height needs … (a) more effort (b) less effort (c) no effort (d) the same effort
24. 24.⚖️ A lever bar balances. The load is 150 N at ? cm from the fulcrum. The effort is 50 N at 30 cm from the fulcrum on the other side. What is the missing distance in centimetres?
25. 25.🔢 To follow the engineering design process, which comes first: “Improve” or “Create”? (a) Improve (b) Create
26. 26.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
27. 27.Which of these is found in nature? (a) a river (b) a lift (c) a water filter (d) a ceiling fan
28. 28.True or false: “a curve under the deck” is a suspension bridge. (a) True (b) False
29. 29.⚙️ A wedge is … (a) two ramps back to back (b) a rope on a wheel (c) a wheel on a rod (d) a bar on a pivot
30. 30.Which of these uses a dome? (a) a roof truss (b) a lintel over a door (c) a curved stone doorway (d) a round palace roof
31. 31.🧪 Three prototype bridges were tested with the same method. Design A held 230 g, design B held 130 g and design C held 180 g. Which design was the weakest? (a) design C (b) design B (c) design A
32. 32.📐 On a plan, 1 cm stands for 2 m. A real bridge is 12 m long. How long is it on the plan, in centimetres?
33. 33.🪢 Tension is a force that … (a) pushes or squeezes (b) turns things (c) pulls or stretches (d) heats things
34. 34.📐 How many millimetres are in 1 centimetre? (a) 1000 (b) 5 (c) 100 (d) 10
35. 35.True or false: a waterfall is found in nature. (a) False (b) True
36. 36.🪢 A concrete slab weighing 3900 N rests evenly on 3 identical pillars. What compression force does each pillar carry, in newtons?
37. 37.Which of these is made by engineers? (a) a river (b) a rainbow (c) a bicycle (d) a volcano
38. 38.🔍 Which is the odd one out? (a) a grippy rubber sole (b) a wheel on ball bearings (c) chalk on a gym bar (d) a rough doormat
39. 39.True or false: an aerospace engineer designs satellites. (a) False (b) True
40. 40.📐 A beam is 830 cm long. How long is it in metres? =

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