Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 428 · 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 is the odd one out? (a) a tall bridge tower (b) a pillar under a roof (c) a tug of war rope (d) a bridge pier
2. 2.📐 A beam is 890 cm long. How long is it in metres? =
3. 3.🏋️ A smooth ramp is 9 m long and rises 3 m. What effort pushes a 2550 N box up it, in newtons? (ideal ramp, no friction)
4. 4.🪝 A wheel and axle is a big wheel fixed to … (a) a sharp wedge (b) a flat ramp (c) a loose rope (d) a smaller rod (axle)
5. 5.True or false: a pair of tweezers is a class 3 lever (effort in the middle). (a) True (b) False
6. 6.🔍 Which is the odd one out? (a) a pillar under a roof (b) a temple column (c) a brick at a wall base (d) a swing chain
7. 7.Which of these needs a waterproof material? (a) a magnifier lens (b) a water tank (c) a cooking pot handle (d) a hair band
8. 8.🪝 More rope sections holding a load means … (a) less effort needed (b) the load floats (c) more effort needed (d) no change
9. 9.🪝 A pulley system lifts a 900 N load with an effort of 300 N. What is its mechanical advantage (MA)?
10. 10.🛠️ Is a bridge made by engineers or found in nature? (a) made by engineers (b) found in nature
11. 11.📋 Criterion: the model bridge must hold at least 300 g. In the test it held 450 g. Does it meet the criterion? (a) No (b) Yes
12. 12.True or false: an electrical engineer designs a gearbox. (a) True (b) False
13. 13.🦺 How should you carry scissors? (a) while running (b) points down, closed (c) points up, open (d) by the blades
14. 14.True or false: a movable pulley is on a flagpole top. (a) False (b) True
15. 15.♻️ Reduce, reuse or recycle: refill a water bottle? (a) recycle (b) reuse (c) reduce
16. 16.Which of these is a beam bridge? (a) cables tied down at ends (b) deck hangs from cables (c) the simplest bridge (d) tall towers hold cables
17. 17.💪 Which force is at work: a river flows downhill? (a) friction (b) gravity (c) muscular force (d) magnetic force
18. 18.🔍 Which is the odd one out? (a) a wet tiled floor (b) a rough doormat (c) a wheel on ball bearings (d) skating on ice
19. 19.🔢 To follow the engineering design process, which comes first: “Ask” or “Imagine”? (a) Imagine (b) Ask
20. 20.♻️ A project report has 18 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
21. 21.🪢 Tension is a force that … (a) pushes or squeezes (b) turns things (c) heats things (d) pulls or stretches
22. 22.🔄 Which design-process step is it to try it out? (a) Improve (b) Test (c) Ask (d) Imagine
23. 23.Which of these is made by engineers? (a) a volcano (b) a mountain (c) a banyan tree (d) a bicycle
24. 24.True or false: a suspension cable is in tension (pulled). (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) adding cross bracing (b) fitting rubber base pads (c) building tall and narrow (d) having a wide base
26. 26.True or false: pushing a swing is a push. (a) True (b) False
27. 27.📐 A beam is 190 cm long. How long is it in metres? =
28. 28.Which of these is in tension (pulled)? (a) a bridge pier (b) a stone in an arch (c) a crane lifting cable (d) a squeezed spring
29. 29.💪 A cart is pulled to the right with 30 N and to the left with 45 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
30. 30.🪢 Tension or compression: a stretched rubber band? (a) tension (b) compression
31. 31.⚖️ Turning effect = force × … (a) time taken (b) mass of fulcrum (c) distance from fulcrum (d) colour of bar
32. 32.True or false: a fixed pulley only changes direction. (a) True (b) False
33. 33.Which of these happens in the Create step? (a) list the materials (b) find the limits (c) think of wild ideas (d) make a prototype
34. 34.📐 How many centimetres are in 1 metre? (a) 60 (b) 1000 (c) 100 (d) 10
35. 35.True or false: to change only one thing is good testing. (a) False (b) True
36. 36.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
37. 37.📐 On a plan, 1 cm stands for 2 m. A real bridge is 24 m long. How long is it on the plan, in centimetres?
38. 38.🔍 Which is the odd one out? (a) a truck loading ramp (b) a bottle cap (c) a jar lid (d) a nut and bolt
39. 39.📐 A beam is 840 cm long. How long is it in metres? =
40. 40.📋 For a model bridge challenge, is “carry 10 coins” a constraint or a criterion? (a) a criterion (b) a constraint

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