Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 802 · 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.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 3 N, a glass sheet 4 N, a wooden plank 8 N, sandpaper 12 N. Which surface gave the least friction? (a) a wooden plank (b) a glass sheet (c) ice (d) sandpaper
2. 2.⚖️ Along a straight bar, measured from the left end, the effort is at 10 cm, the fulcrum at 50 cm and the load at 80 cm. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
3. 3.🔢 To follow the engineering design process, what comes right after “Create”? (a) Improve (b) Ask (c) Plan (d) Test
4. 4.🦺 How should you carry scissors? (a) points up, open (b) while running (c) by the blades (d) points down, closed
5. 5.True or false: a computer engineer designs school networks. (a) False (b) True
6. 6.🏋️ A force of 130 N pushes a cart 7 m along the floor. How much work is done, in joules?
7. 7.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) plastic-coated cloth (d) cotton wool
8. 8.Which need does a dam meet? (a) make power from sunlight (b) keep food fresh longer (c) store water for summer (d) carry many people far
9. 9.Which of these needs a transparent material? (a) a skipping rope (b) a plug pin (c) a window pane (d) a tea flask lining
10. 10.🔍 Which is the odd one out? (a) oil on a squeaky hinge (b) powder on a carrom board (c) a box pushed on carpet (d) skating on ice
11. 11.🏋️ Pushing a crate 5 m took 2000 J of work. What force was used, in newtons?
12. 12.🔢 To follow the engineering design process, which comes first: “Improve” or “Test”? (a) Improve (b) Test
13. 13.True or false: the core of a wire needs a waterproof material. (a) True (b) False
14. 14.🌉 In a stone arch bridge, the stones are in … (a) compression (b) tension (c) no force (d) friction
15. 15.🛞 More or less friction: a wheel on ball bearings? (a) more friction (b) less friction
16. 16.🔄 Which design-process step is it to follow the plan to build? (a) Ask (b) Plan (c) Create (d) Improve
17. 17.📋 A design meets every criterion but costs more than the budget. Is it acceptable? (a) only if it is red (b) yes, it works (c) yes, always (d) no, it breaks a limit
18. 18.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
19. 19.🧑‍🔧 Which branch of engineering works on aeroplanes and rockets? (a) computer (b) civil (c) chemical (d) aerospace
20. 20.🪢 Tension or compression: a temple column? (a) compression (b) tension
21. 21.🏋️ A longer ramp to the same height needs … (a) less effort (b) the same effort (c) no effort (d) more effort
22. 22.📐 On a plan, 1 cm stands for 2 m. A real bridge is 26 m long. How long is it on the plan, in centimetres?
23. 23.Which of these needs a waterproof material? (a) a yoga mat (b) a spectacle lens (c) a raincoat (d) a skipping rope
24. 24.True or false: to blame others for faults is good teamwork. (a) True (b) False
25. 25.🤝 A teammate’s idea seems odd. What should you do first? (a) ignore it (b) listen and ask why (c) laugh at it (d) walk away
26. 26.🪝 Fixed or movable pulley: which one hangs on the rope loop? (a) a movable pulley (b) a fixed pulley
27. 27.🪢 Tension or compression: a brick at a wall base? (a) tension (b) compression
28. 28.🔍 Which is the odd one out? (a) use only paper and tape (b) be under 30 cm tall (c) keep ice for 1 hour (d) finish in 40 minutes
29. 29.📐 On a plan, 1 cm stands for 2 m. A wall is 16 cm long on the plan. How long is the real wall, in metres?
30. 30.🛞 Is friction helpful or a problem here: walking without slipping? (a) helpful (b) a problem
31. 31.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
32. 32.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) steel (d) plastic
33. 33.Which job does a chemical engineer do? (a) plans a dam (b) designs car engines (c) designs a paint factory (d) designs bicycle gears
34. 34.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: sandpaper 6 N, ice 1 N, a glass sheet 2 N, a wooden plank 5 N. Which surface gave the most friction? (a) a wooden plank (b) ice (c) a glass sheet (d) sandpaper
35. 35.True or false: “spend at most ₹100” is a criterion (a goal). (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) a round doorknob (b) the tip of a nail (c) a steering wheel (d) a well winch handle
37. 37.🏋️ Pushing a crate 3 m took 780 J of work. What force was used, in newtons?
38. 38.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
39. 39.📋 For a model bridge challenge, is “fit on a school desk” a constraint or a criterion? (a) a criterion (b) a constraint
40. 40.🔢 To follow the engineering design process, which comes first: “Create” or “Ask”? (a) Create (b) Ask

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