Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 121 · 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 of these uses an arch? (a) a lintel over a door (b) a roof truss (c) a fort gateway (d) a shelf on two brackets
2. 2.🏚️ Three solid model towers are made of the same material. Tower A is 150 cm tall on a 30 cm wide base, tower B is 180 cm tall on a 30 cm base and tower C is 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
3. 3.📐 On a plan, 1 cm stands for 5 m. A wall is 6 cm long on the plan. How long is the real wall, in metres?
4. 4.Which of these uses a beam? (a) an old stone bridge (b) a bicycle frame (c) a lintel over a door (d) a truss bridge side
5. 5.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) strengthen the weak part (b) build it with straws (c) choose and draw one (d) read the challenge rules
6. 6.Which of these is reuse (use again)? (a) print on both sides (b) turn plastic into tiles (c) refill a water bottle (d) switch off unused lights
7. 7.🔢 To follow the engineering design process, which is the LAST step? (a) Plan (b) Ask (c) Improve (d) Imagine
8. 8.Which of these is in tension (pulled)? (a) a brick at a wall base (b) a tall bridge tower (c) a stretched rubber band (d) a bridge pier
9. 9.🧪 The first prototype held 270 g. After the team improved it, the new prototype held 460 g. How many more grams did it hold?
10. 10.True or false: a wheel on ball bearings gives more friction. (a) False (b) True
11. 11.True or false: a civil engineer builds hospital scanners. (a) True (b) False
12. 12.True or false: a switch contact needs a heat insulator. (a) False (b) True
13. 13.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 10 cm wide base, tower B is 120 cm tall on a 30 cm base and tower C is 240 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
14. 14.🔍 Which is the odd one out? (a) a window blind cord (b) a crane hook block (c) a flagpole rope wheel (d) a door stopper
15. 15.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) using a light roof (c) building tall and narrow (d) stacking loose bricks
16. 16.True or false: to hide a failed test is poor testing. (a) True (b) False
17. 17.🪝 A pulley system lifts a 600 N load with an effort of 150 N. What is its mechanical advantage (MA)?
18. 18.🛞 Is friction helpful or a problem here: striking a matchstick? (a) helpful (b) a problem
19. 19.Which of these is a screw? (a) a claw hammer on a nail (b) the tip of a nail (c) a jar lid (d) a wheelchair ramp
20. 20.🌉 Which bridge type: “a flat deck on piers”? (a) beam bridge (b) suspension bridge (c) arch bridge
21. 21.What does the builder do? (a) keeps the team on track (b) checks the goals are met (c) cuts and joins parts (d) shares out the jobs
22. 22.True or false: a tug of war is a push. (a) False (b) True
23. 23.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) having a wide base (c) making brittle joints (d) keeping a simple shape
24. 24.Which of these is in tension (pulled)? (a) a crane lifting cable (b) a tall bridge tower (c) a stone in an arch (d) a table leg
25. 25.Which of these is a suspension bridge? (a) the simplest bridge (b) the longest spans of all (c) a log across a stream (d) a flat deck on piers
26. 26.🏋️ Work is done when a force moves something … (a) very slowly (b) only upwards (c) through a distance (d) without moving it
27. 27.Which of these needs a waterproof material? (a) a spectacle lens (b) a yoga mat (c) an umbrella cover (d) a hair band
28. 28.True or false: a computer engineer plans a power grid. (a) False (b) True
29. 29.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) cardboard (d) plastic-coated cloth
30. 30.📋 A constraint is … (a) a limit you must keep to (b) a final test (c) a goal for success (d) a kind of glue
31. 31.What does the tester do? (a) checks the goals are met (b) keeps the design notes (c) writes down results (d) keeps the team on track
32. 32.🏋️ Can a simple machine reduce the work done? (a) yes, always (b) no, work stays the same (c) only on Mondays (d) yes, by half
33. 33.🧪 A paper bridge was tested three times. It held 230 g, 170 g and 140 g. What is the mean (average) load it held, in grams?
34. 34.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) civil (b) chemical (c) biomedical (d) computer
35. 35.🔧 Which tool would you use to check a shelf is level? (a) a spanner (b) a screwdriver (c) a spirit level (d) a hammer
36. 36.🤝 A team of 4 shares 12 equal jobs fairly. Each job takes 3 minutes. How many minutes does each person work?
37. 37.🪢 A sign weighing 840 N hangs from 6 identical vertical ropes that share the load equally. What is the tension in each rope, in newtons?
38. 38.True or false: a crane lifting cable is in compression (pushed). (a) True (b) False
39. 39.🧑‍🔧 Which branch of engineering works on aeroplanes and rockets? (a) computer (b) chemical (c) civil (d) aerospace
40. 40.🤝 In a design team, who checks the goals are met? (a) tester (b) team leader (c) materials manager (d) builder

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