Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 266 · 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.🦺 What protects your eyes when sawing or drilling? (a) sunglasses (b) a cap (c) nothing (d) safety goggles
2. 2.Which of these happens in the Test step? (a) draw a labelled diagram (b) check it against goals (c) find the limits (d) make a prototype
3. 3.Which need does a microscope meet? (a) store water for summer (b) see very tiny things (c) make power from sunlight (d) reach a top floor fast
4. 4.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
5. 5.True or false: a smooth steel slide gives more friction. (a) True (b) False
6. 6.🏋️ Pushing a crate 10 m took 4900 J of work. What force was used, in newtons?
7. 7.📐 How many metres are in 1 kilometre? (a) 100 (b) 1000 (c) 10 (d) 10000
8. 8.Which of these happens in the Create step? (a) pick the build order (b) redesign after testing (c) build the model (d) make it better, retest
9. 9.🤝 A team plans for 20 minutes, builds for 55 minutes and then tests for 5 minutes, one after another. How many minutes is that in all?
10. 10.True or false: “stand in a fan breeze” is a constraint (a limit). (a) False (b) True
11. 11.⚖️ A lever bar balances. The load is 500 N at 30 cm from the fulcrum. The effort is 300 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
12. 12.🤝 Why do engineers work in teams? (a) many skills and ideas (b) to finish nothing (c) to work alone (d) to argue more
13. 13.True or false: “a curve under the deck” is an arch bridge. (a) False (b) True
14. 14.Which of these is reuse (use again)? (a) carry a cloth bag (b) reuse gift paper (c) print on both sides (d) buy less packaging
15. 15.True or false: to tighten a nut, use a tape measure. (a) False (b) True
16. 16.True or false: a fixed pulley needs effort = load. (a) False (b) True
17. 17.🪝 A well winch has a handle (wheel) of radius 12 cm turning an axle of radius 4 cm. What is its mechanical advantage (MA)?
18. 18.🛞 More or less friction: powder on a carrom board? (a) more friction (b) less friction
19. 19.♻️ Which is the BEST order to think about waste? (a) recycle, reuse, reduce (b) reduce, reuse, recycle (c) reuse, recycle, reduce (d) burn, bury, forget
20. 20.⚖️ Along a straight bar, measured from the left end, the effort is at 20 cm, the fulcrum at 10 cm and the load at 30 cm. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
21. 21.📋 For a model bridge challenge, is “stand in a fan breeze” a constraint or a criterion? (a) a criterion (b) a constraint
22. 22.Which of these is caused by friction? (a) an apple falls down (b) rain falls to the ground (c) a magnet picks up pins (d) shoes grip the floor
23. 23.🪢 A stage stands on 5 identical legs and each leg is squeezed with 725 N. What is the total load on the stage, in newtons?
24. 24.Which of these is an inclined plane? (a) a crowbar (b) a wheelchair ramp (c) a claw hammer on a nail (d) a round doorknob
25. 25.⚖️ Going along a lever from one end to the other, the order is: effort, fulcrum, load. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
26. 26.Which job does a biomedical engineer do? (a) writes app software (b) designs power lines (c) plans a dam (d) designs artificial limbs
27. 27.Which of these is found in nature? (a) a cloud (b) a railway track (c) a water filter (d) a ceiling fan
28. 28.🔍 Which is the odd one out? (a) a door stopper (b) a crane hook block (c) a well-bucket rope wheel (d) a flagpole rope wheel
29. 29.True or false: “the simplest bridge” is a beam bridge. (a) False (b) True
30. 30.🛠️ Is a rainbow made by engineers or found in nature? (a) found in nature (b) made by engineers
31. 31.⚖️ Turning effect = force × … (a) distance from fulcrum (b) time taken (c) colour of bar (d) mass of fulcrum
32. 32.Which of these happens in the Imagine step? (a) draw a labelled diagram (b) pick the build order (c) ask who will use it (d) brainstorm many ideas
33. 33.⚖️ A seesaw balances. Asha (340 N) sits 3 m from the pivot on one side; Meena (510 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
34. 34.📋 For a model bridge challenge, is “float for 1 minute” a constraint or a criterion? (a) a constraint (b) a criterion
35. 35.🪝 A well winch has a handle (wheel) of radius 8 cm turning an axle of radius 2 cm. What is its mechanical advantage (MA)?
36. 36.Which of these is found in nature? (a) a seashell (b) a dam (c) a railway track (d) a bicycle
37. 37.⚙️ Which simple machine is a nutcracker? (a) inclined plane (b) lever (c) wheel and axle (d) screw
38. 38.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
39. 39.🏋️ A 14 kg box is lifted straight up by 1 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
40. 40.🔍 Which is the odd one out? (a) a wheelchair ramp (b) a round doorknob (c) a water tap handle (d) a well winch handle

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