Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 637 · 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: to test it only once is good testing. (a) True (b) False
2. 2.⚖️ A seesaw balances. Asha (100 N) sits ? m from the pivot on one side; Arjun (400 N) sits 1 m from the pivot on the other side. What is the missing distance in metres?
3. 3.🪝 Fixed or movable pulley: which one needs effort = load? (a) a fixed pulley (b) a movable pulley
4. 4.🦺 What protects your eyes when sawing or drilling? (a) a cap (b) sunglasses (c) nothing (d) safety goggles
5. 5.🤝 In a design team, who collects the supplies? (a) builder (b) materials manager (c) team leader (d) tester
6. 6.True or false: a waterfall is found in nature. (a) True (b) False
7. 7.🪝 Fixed or movable pulley: which one hangs on the rope loop? (a) a fixed pulley (b) a movable pulley
8. 8.♻️ Which is the BEST order to think about waste? (a) reuse, recycle, reduce (b) reduce, reuse, recycle (c) recycle, reuse, reduce (d) burn, bury, forget
9. 9.♻️ Is coal a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
10. 10.Which need does a train meet? (a) store water for summer (b) carry many people far (c) reach a top floor fast (d) talk to someone far away
11. 11.📋 For a model bridge challenge, is “lift a cup of water” a constraint or a criterion? (a) a constraint (b) a criterion
12. 12.🏋️ A 12 kg box is lifted straight up by 1 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
13. 13.♻️ Is natural gas a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
14. 14.🔢 To follow the engineering design process, which is the FIRST step? (a) Test (b) Imagine (c) Ask (d) Plan
15. 15.🔍 Which is the odd one out? (a) a bridge pier (b) a stretched rubber band (c) a squeezed spring (d) a pillar under a roof
16. 16.Which of these happens in the Ask step? (a) pick the build order (b) find the limits (c) make a prototype (d) try it out
17. 17.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
18. 18.🔍 Which is the odd one out? (a) a box pushed on carpet (b) powder on a carrom board (c) a smooth steel slide (d) skating on ice
19. 19.🛞 Which surface gives the MOST friction to a sliding block? (a) sandpaper (b) ice (c) glass (d) polished marble
20. 20.Which of these is in tension (pulled)? (a) a temple column (b) a bridge pier (c) a swing chain (d) a stone in an arch
21. 21.♻️ Which energy source will never run out? (a) coal (b) sunlight (c) petrol (d) diesel
22. 22.Which of these is made by engineers? (a) a coral reef (b) a rainbow (c) a mountain (d) a bridge
23. 23.What does the tester do? (a) puts the model together (b) checks the goals are met (c) tracks what is used up (d) writes down results
24. 24.⚙️ A screw is really … (a) a tiny pulley (b) a bent lever (c) a ramp wrapped round (d) a kind of wheel
25. 25.📋 For a model bridge challenge, is “float for 1 minute” a constraint or a criterion? (a) a constraint (b) a criterion
26. 26.🔄 Which design-process step is it to draw a labelled diagram? (a) Plan (b) Improve (c) Imagine (d) Ask
27. 27.📋 A constraint is … (a) a goal for success (b) a final test (c) a kind of glue (d) a limit you must keep to
28. 28.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: sandpaper 7 N, ice 1 N, a glass sheet 2 N, a carpet 6 N. Which surface gave the least friction? (a) a carpet (b) ice (c) a glass sheet (d) sandpaper
29. 29.🏋️ A force of 160 N did 800 J of work. How many metres did the object move?
30. 30.🔍 Which is the odd one out? (a) brass (b) cotton cloth (c) rubber (d) clay pottery
31. 31.🪝 A load of 630 N hangs from a pulley system in which 3 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
32. 32.⚙️ Most simple machines make work easier by letting us … (a) stop all friction (b) switch off gravity (c) use a smaller force (d) make new energy
33. 33.True or false: to change lots at once is good testing. (a) True (b) False
34. 34.🧱 Which property matters most for a skipping rope? (a) waterproof (b) heat insulator (c) flexible (d) transparent
35. 35.🔺 A flat frame has 4 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
36. 36.🛞 Is friction helpful or a problem here: machine parts heating up? (a) a problem (b) helpful
37. 37.True or false: a swing chain is in compression (pushed). (a) True (b) False
38. 38.True or false: a pair of pliers is a class 1 lever (fulcrum in the middle). (a) False (b) True
39. 39.🪢 Tension or compression: a stone in an arch? (a) compression (b) tension
40. 40.True or false: a seesaw is a wheel and axle. (a) False (b) True

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