Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 753 · 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 class of lever is a seesaw? (a) class 1 (b) class 3 (c) class 2
2. 2.True or false: a nutcracker is a lever. (a) False (b) True
3. 3.What does the tester do? (a) keeps the team on track (b) checks the goals are met (c) shares out the jobs (d) tracks what is used up
4. 4.True or false: to measure a long length, use a tape measure. (a) False (b) True
5. 5.True or false: a pair of pliers is a class 2 lever (load in the middle). (a) True (b) False
6. 6.⚖️ A lever bar balances. The load is 180 N at 30 cm from the fulcrum. The effort is ? N at 90 cm from the fulcrum on the other side. What is the missing force in newtons?
7. 7.⚙️ Which simple machine is a knife edge? (a) wheel and axle (b) inclined plane (c) screw (d) wedge
8. 8.🔢 To follow the engineering design process, which comes first: “Test” or “Imagine”? (a) Imagine (b) Test
9. 9.Which of these needs a transparent material? (a) an oven glove (b) a spectacle lens (c) a skipping rope (d) a switch contact
10. 10.🪢 Tension or compression: a table leg? (a) compression (b) tension
11. 11.True or false: to share the work fairly is good teamwork. (a) False (b) True
12. 12.🔄 Which design-process step is it to draw a labelled diagram? (a) Create (b) Plan (c) Ask (d) Improve
13. 13.🔍 Which is the odd one out? (a) run while holding tools (b) cut towards your hand (c) use a cracked tool (d) let adults use hot glue
14. 14.🪢 A beam rests on two supports and is pressed down in the middle. Its bottom edge is … (a) twisted (b) not affected (c) stretched (tension) (d) squeezed (compression)
15. 15.🛞 Is friction helpful or a problem here: tyres wearing down? (a) helpful (b) a problem
16. 16.🪝 A bucket weighing 120 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
17. 17.True or false: to cut a wooden plank, use sandpaper. (a) False (b) True
18. 18.🛞 How can we reduce friction in a machine? (a) press parts harder (b) add sand (c) make parts rough (d) oil the moving parts
19. 19.🔄 Is the engineering design process done only once? (a) yes, only once (b) no, it repeats (c) only on Sundays (d) only for big jobs
20. 20.📐 How many metres are in 1 kilometre? (a) 10 (b) 10000 (c) 100 (d) 1000
21. 21.🪝 Fixed or movable pulley: which one only changes direction? (a) a fixed pulley (b) a movable pulley
22. 22.Which of these is an inclined plane? (a) a well winch handle (b) a bottle cap (c) a truck loading ramp (d) a bottle opener
23. 23.True or false: “keep ice for 1 hour” is a constraint (a limit). (a) True (b) False
24. 24.🪝 A well winch has a handle (wheel) of radius 6 cm turning an axle of radius 2 cm. What is its mechanical advantage (MA)?
25. 25.Which job does a chemical engineer do? (a) designs a paint factory (b) designs school networks (c) builds rockets (d) wires a new building
26. 26.🧪 A paper bridge was tested three times. It held 210 g, 140 g and 250 g. What is the mean (average) load it held, in grams?
27. 27.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a microscope (c) a telescope (d) a fridge
28. 28.Which of these is found in nature? (a) a railway track (b) a river (c) a satellite (d) a ceiling fan
29. 29.🔍 Which is the odd one out? (a) change lots at once (b) repeat each test (c) skip writing results (d) test it only once
30. 30.⚖️ A seesaw balances. Kabir (360 N) sits 4 m from the pivot on one side; Arjun (? N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?
31. 31.True or false: a tall bridge tower is in tension (pulled). (a) True (b) False
32. 32.🧑‍🔧 Which kind of engineer designs hearing aids? (a) biomedical (b) computer (c) aerospace (d) electrical
33. 33.True or false: a boat hull needs a waterproof material. (a) True (b) False
34. 34.Which job does a chemical engineer do? (a) designs hearing aids (b) lays out a highway (c) makes medicines in bulk (d) keeps data safe online
35. 35.True or false: a broom when sweeping is a class 3 lever (effort in the middle). (a) True (b) False
36. 36.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
37. 37.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “load it with coins”? (a) load it with coins (b) sketch three ideas
38. 38.⚖️ What is the pivot point of a lever called? (a) the fulcrum (b) the load (c) the effort (d) the axle
39. 39.⚖️ Along a straight bar, measured from the left end, the effort is at 0 cm, the fulcrum at 10 cm and the load at 40 cm. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
40. 40.True or false: hitting a cricket ball is a pull. (a) True (b) False

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