Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 881 · 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 2 N, a wooden plank 6 N, a carpet 9 N, sandpaper 10 N. Which surface gave the most friction? (a) sandpaper (b) a carpet (c) ice (d) a wooden plank
2. 2.⚖️ A seesaw balances. Asha (? N) sits 1 m from the pivot on one side; Kabir (170 N) sits 1 m from the pivot on the other side. What is the missing weight in newtons?
3. 3.🤝 Is it good or poor teamwork to own up to a mistake? (a) good teamwork (b) poor teamwork
4. 4.🤝 In a design team, who shares out the jobs? (a) materials manager (b) builder (c) tester (d) team leader
5. 5.📋 Your team’s budget is ₹98. You must buy one roll of tape for ₹5. Straws cost ₹4 each. What is the greatest number of straws you can buy?
6. 6.Which of these needs a transparent material? (a) a plug pin (b) a magnifier lens (c) a hair band (d) the core of a wire
7. 7.True or false: a roof sheet needs a waterproof material. (a) False (b) True
8. 8.⚙️ A wedge is … (a) a rope on a wheel (b) a wheel on a rod (c) two ramps back to back (d) a bar on a pivot
9. 9.🛞 More or less friction: a tyre with deep treads? (a) less friction (b) more friction
10. 10.🔍 Which is the odd one out? (a) a nutcracker (b) a claw hammer on a nail (c) a road up a hill (d) a crowbar
11. 11.🪢 Tension or compression: a tug of war rope? (a) tension (b) compression
12. 12.🏋️ Can a simple machine reduce the work done? (a) yes, always (b) yes, by half (c) no, work stays the same (d) only on Mondays
13. 13.🏋️ A force of 140 N did 280 J of work. How many metres did the object move?
14. 14.True or false: to carry scissors closed is safe. (a) False (b) True
15. 15.📐 A model car is drawn so that 1 cm stands for 20 cm. The car is 2 cm long in the drawing. How long is the real car, in centimetres?
16. 16.📐 A beam is 580 cm long. How long is it in metres? =
17. 17.True or false: pressing a doorbell is a pull. (a) True (b) False
18. 18.🪝 A load of 450 N hangs from a pulley system in which 3 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
19. 19.What does the builder do? (a) shares out the jobs (b) cuts and joins parts (c) runs the tests (d) collects the supplies
20. 20.🤝 Is it good or poor teamwork to hide a mistake? (a) good teamwork (b) poor teamwork
21. 21.🤝 How do engineers share a design with others? (a) clear labelled sketches (b) secret notes (c) only talking fast (d) no drawings at all
22. 22.🔢 To follow the engineering design process, which is the FIRST step? (a) Plan (b) Create (c) Imagine (d) Ask
23. 23.Which of these happens in the Ask step? (a) fix the weak part (b) check it against goals (c) pick the build order (d) ask who will use it
24. 24.🪝 Fixed or movable pulley: which one rises with the load? (a) a movable pulley (b) a fixed pulley
25. 25.🏋️ A smooth ramp is 3 m long and rises 1 m. What effort pushes a 1050 N box up it, in newtons? (ideal ramp, no friction)
26. 26.🛞 Is friction helpful or a problem here: machine parts heating up? (a) helpful (b) a problem
27. 27.🔺 A beam bends under a load. Its top side is … (a) stretched (tension) (b) squeezed (compression) (c) floating (d) not affected
28. 28.True or false: “lift a cup of water” is a constraint (a limit). (a) True (b) False
29. 29.🔺 A frame shaped like a square is made of straws joined by loose pins, with 0 corner-to-corner braces. Is it rigid or wobbly? (a) rigid (b) wobbly
30. 30.🧑‍🔧 Which kind of engineer plans a space mission? (a) mechanical (b) biomedical (c) civil (d) aerospace
31. 31.Which of these is found in nature? (a) a bicycle (b) a bridge (c) a river (d) a water filter
32. 32.🧑‍🔧 Which branch of engineering works on aeroplanes and rockets? (a) computer (b) civil (c) aerospace (d) chemical
33. 33.🔍 Which is the odd one out? (a) a road up a hill (b) a playground slide (c) a round doorknob (d) a truck loading ramp
34. 34.⚙️ Most simple machines make work easier by letting us … (a) stop all friction (b) make new energy (c) switch off gravity (d) use a smaller force
35. 35.🔢 To follow the engineering design process, what comes right after “Create”? (a) Plan (b) Test (c) Improve (d) Ask
36. 36.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) build it with straws (b) choose and draw one (c) strengthen the weak part (d) sketch three ideas
37. 37.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
38. 38.🔢 To build and test a straw bridge, which is the FIRST step? (a) choose and draw one (b) sketch three ideas (c) read the challenge rules (d) build it with straws
39. 39.Which job does a computer engineer do? (a) designs a flyover (b) designs hearing aids (c) designs school networks (d) refines crude oil
40. 40.Which of these is a beam bridge? (a) deck hangs from cables (b) tall towers hold cables (c) a rope bridge in hills (d) the simplest bridge

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