Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 163 · 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 is caused by muscular force? (a) pedalling a cycle (b) a rolling ball slows (c) rubbing hands warms them (d) shoes grip the floor
2. 2.Which of these needs a waterproof material? (a) a skipping rope (b) a yoga mat (c) a raincoat (d) a tea flask lining
3. 3.True or false: a nutcracker is a class 2 lever (load in the middle). (a) True (b) False
4. 4.📋 A design meets every criterion but costs more than the budget. Is it acceptable? (a) only if it is red (b) no, it breaks a limit (c) yes, it works (d) yes, always
5. 5.True or false: a bicycle frame uses a beam. (a) True (b) False
6. 6.🤝 A team plans for 55 minutes, builds for 45 minutes and then tests for 10 minutes, one after another. How many minutes is that in all?
7. 7.🔍 Which is the odd one out? (a) a brick at a wall base (b) a hanging lamp chain (c) a stretched rubber band (d) a crane lifting cable
8. 8.Which of these is a suspension bridge? (a) cables tied down at ends (b) stones squeezed together (c) the simplest bridge (d) pushes out on its ends
9. 9.🧑‍🔧 Which kind of engineer builds rockets? (a) biomedical (b) aerospace (c) mechanical (d) civil
10. 10.Which of these needs a transparent material? (a) a hair band (b) a cooking pot handle (c) a spectacle lens (d) an oven glove
11. 11.⚖️ Along a straight bar, measured from the left end, the effort is at 70 cm, the fulcrum at 60 cm and the load at 20 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
12. 12.True or false: to redesign after testing is the Imagine step. (a) False (b) True
13. 13.🌉 In a stone arch bridge, the stones are in … (a) tension (b) compression (c) no force (d) friction
14. 14.⚙️ How many simple machines are there in the usual list? (a) 3 (b) 6 (c) 12 (d) 10
15. 15.🤝 Why do engineers work in teams? (a) to work alone (b) to argue more (c) to finish nothing (d) many skills and ideas
16. 16.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
17. 17.🪝 More rope sections holding a load means … (a) no change (b) less effort needed (c) more effort needed (d) the load floats
18. 18.True or false: a banyan tree is found in nature. (a) False (b) True
19. 19.🔍 Which is the odd one out? (a) a nut and bolt (b) a knife edge (c) a screw jack (d) a wood screw
20. 20.🏋️ A force of 400 N did 400 J of work. How many metres did the object move?
21. 21.⚖️ Along a straight bar, measured from the left end, the effort is at 100 cm, the fulcrum at 70 cm and the load at 30 cm. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
22. 22.🪝 A wheel and axle is a big wheel fixed to … (a) a loose rope (b) a sharp wedge (c) a smaller rod (axle) (d) a flat ramp
23. 23.🤝 How do engineers share a design with others? (a) only talking fast (b) clear labelled sketches (c) no drawings at all (d) secret notes
24. 24.🛠️ People need to keep food fresh longer. Which invention helps? (a) a dam (b) a microscope (c) a fridge (d) a lift
25. 25.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a carpet 7 N, sandpaper 10 N, ice 3 N, a wooden plank 4 N. Which surface gave the least friction? (a) ice (b) sandpaper (c) a wooden plank (d) a carpet
26. 26.🛠️ Is a volcano made by engineers or found in nature? (a) made by engineers (b) found in nature
27. 27.🏋️ Pushing a crate 4 m took 1480 J of work. What force was used, in newtons?
28. 28.🛞 Is friction helpful or a problem here: writing with a pencil? (a) helpful (b) a problem
29. 29.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) rubber (d) copper
30. 30.🏋️ A force of 320 N did 3200 J of work. How many metres did the object move?
31. 31.Which of these is made by engineers? (a) a river (b) a bicycle (c) a mountain (d) a banyan tree
32. 32.Which of these is in tension (pulled)? (a) a swing chain (b) a squeezed spring (c) a table leg (d) a stone in an arch
33. 33.📐 On a plan, 1 cm stands for 2 m. A wall is 7 cm long on the plan. How long is the real wall, in metres?
34. 34.What does the tester do? (a) keeps the design notes (b) runs the tests (c) tracks what is used up (d) cuts and joins parts
35. 35.Which of these is in tension (pulled)? (a) a bridge pier (b) a stone in an arch (c) a squeezed spring (d) a tent guy rope
36. 36.📐 A beam is 410 cm long. How long is it in metres? =
37. 37.⚖️ Along a straight bar, measured from the left end, the effort is at 60 cm, the fulcrum at 30 cm and the load at 20 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
38. 38.🔍 Which is the odd one out? (a) use at most 20 straws (b) hold up 500 g (c) fit on a school desk (d) spend at most ₹100
39. 39.📋 For a model bridge challenge, is “float for 1 minute” a constraint or a criterion? (a) a constraint (b) a criterion
40. 40.🔍 Which is the odd one out? (a) use at most 20 straws (b) fit on a school desk (c) keep ice for 1 hour (d) finish in 40 minutes

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