Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 257 · 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.🏚️ Why is a wide base safer? (a) it is taller (b) it is colourful (c) it is harder to tip over (d) it is lighter
2. 2.🦺 In the workshop, is it safe to put tools back after use? (a) safe (b) not safe
3. 3.True or false: to clamp wood before sawing is safe. (a) False (b) True
4. 4.Which need does a telephone meet? (a) talk to someone far away (b) see very tiny things (c) store water for summer (d) keep food fresh longer
5. 5.🔄 Which design-process step is it to dream up possible fixes? (a) Imagine (b) Improve (c) Create (d) Ask
6. 6.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 3 N, a wooden plank 6 N, a carpet 9 N, sandpaper 11 N. Which surface gave the most friction? (a) sandpaper (b) a carpet (c) a wooden plank (d) ice
7. 7.Which of these is a wedge? (a) a truck loading ramp (b) a jar lid (c) a well-bucket rope wheel (d) a knife edge
8. 8.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
9. 9.⚖️ Along a straight bar, measured from the left end, the effort is at 70 cm, the fulcrum at 0 cm and the load at 30 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
10. 10.Which of these is an arch bridge? (a) cables tied down at ends (b) stones squeezed together (c) a log across a stream (d) a flat deck on piers
11. 11.True or false: natural gas is a non-renewable energy source. (a) False (b) True
12. 12.⚖️ A seesaw balances. Meena (300 N) sits ? m from the pivot on one side; Zoya (400 N) sits 3 m from the pivot on the other side. What is the missing distance in metres?
13. 13.🔍 Which is the odd one out? (a) a tug of war rope (b) a temple column (c) a tow rope on a car (d) a hanging lamp chain
14. 14.📐 How many metres are in 1 kilometre? (a) 10000 (b) 1000 (c) 10 (d) 100
15. 15.📋 For a model bridge challenge, is “use at most 20 straws” a constraint or a criterion? (a) a criterion (b) a constraint
16. 16.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) plastic-coated cloth (d) cardboard
17. 17.🪝 A bucket weighing 150 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
18. 18.🌉 Which bridge type: “a log across a stream”? (a) suspension bridge (b) beam bridge (c) arch bridge
19. 19.True or false: a movable pulley needs effort = load. (a) False (b) True
20. 20.🔺 A frame shaped like a hexagon is made of straws joined by loose pins, with 0 corner-to-corner braces. Is it rigid or wobbly? (a) rigid (b) wobbly
21. 21.🧑‍🔧 Which branch of engineering designs machines with moving parts? (a) civil (b) chemical (c) biomedical (d) mechanical
22. 22.True or false: to wear safety goggles is not safe. (a) True (b) False
23. 23.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a wooden plank 2 N, a carpet 4 N, sandpaper 6 N, a glass sheet 1 N. How many newtons more were needed on sandpaper than on a glass sheet?
24. 24.🔺 Which strong shape does an electric pylon use? (a) dome (b) beam (c) triangle (d) arch
25. 25.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “strengthen the weak part”? (a) load it with coins (b) strengthen the weak part
26. 26.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
27. 27.💪 Which force is at work: a rolling ball slows? (a) gravity (b) friction (c) muscular force (d) magnetic force
28. 28.🏋️ A force of 110 N did 220 J of work. How many metres did the object move?
29. 29.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
30. 30.🔍 Which is the odd one out? (a) a squeezed spring (b) a brick at a wall base (c) a hanging lamp chain (d) a pillar under a roof
31. 31.True or false: a rainbow is found in nature. (a) False (b) True
32. 32.🦺 In the workshop, is it safe to touch a hot glue tip? (a) not safe (b) safe
33. 33.True or false: a box pushed on carpet gives less friction. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) a satellite (b) a rainbow (c) a river (d) a volcano
35. 35.🤝 In a design team, who checks the goals are met? (a) materials manager (b) builder (c) recorder (d) tester
36. 36.🔍 Which is the odd one out? (a) using flexible joints (b) using a heavy roof (c) fitting rubber base pads (d) adding cross bracing
37. 37.True or false: the core of a wire needs a transparent material. (a) True (b) False
38. 38.True or false: a spectacle lens needs a flexible material. (a) True (b) False
39. 39.True or false: to use a new load each time is good testing. (a) True (b) False
40. 40.True or false: a rough doormat gives less friction. (a) True (b) False

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