Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 913 · 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.💪 A bag has a mass of 28 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
2. 2.🔍 Which is the odd one out? (a) a smooth steel slide (b) sand on a slippery path (c) skating on ice (d) powder on a carrom board
3. 3.🤝 How do engineers share a design with others? (a) only talking fast (b) no drawings at all (c) clear labelled sketches (d) secret notes
4. 4.⚙️ A wedge is … (a) a bar on a pivot (b) a rope on a wheel (c) two ramps back to back (d) a wheel on a rod
5. 5.💪 A bag has a mass of 58 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
6. 6.Which of these is reduce (use less)? (a) plant in old tyres (b) fix a dripping tap (c) turn plastic into tiles (d) refill a water bottle
7. 7.🤝 A team plans for 15 minutes, builds for 45 minutes and then tests for 10 minutes, one after another. How many minutes is that in all?
8. 8.🪢 A concrete slab weighing 2400 N rests evenly on 2 identical pillars. What compression force does each pillar carry, in newtons?
9. 9.True or false: sand on a slippery path gives less friction. (a) True (b) False
10. 10.Which of these is made by engineers? (a) a seashell (b) a volcano (c) a ceiling fan (d) a banyan tree
11. 11.⚙️ Most simple machines make work easier by letting us … (a) switch off gravity (b) stop all friction (c) make new energy (d) use a smaller force
12. 12.🦺 What protects your eyes when sawing or drilling? (a) safety goggles (b) a cap (c) nothing (d) sunglasses
13. 13.🔍 Which is the odd one out? (a) oil on a squeaky hinge (b) sand on a slippery path (c) a rough doormat (d) a grippy rubber sole
14. 14.🔄 Which design-process step is it to think of wild ideas? (a) Improve (b) Imagine (c) Plan (d) Test
15. 15.⚖️ A seesaw balances. Ravi (600 N) sits ? m from the pivot on one side; Kabir (450 N) sits 4 m from the pivot on the other side. What is the missing distance in metres?
16. 16.📋 A design meets every criterion but costs more than the budget. Is it acceptable? (a) yes, always (b) only if it is red (c) no, it breaks a limit (d) yes, it works
17. 17.⚙️ A screw is really … (a) a bent lever (b) a tiny pulley (c) a kind of wheel (d) a ramp wrapped round
18. 18.🌉 Which bridge type can cross the widest gap in one span? (a) arch bridge (b) beam bridge (c) suspension bridge (d) log bridge
19. 19.🔺 Which strong shape does a planetarium roof use? (a) dome (b) arch (c) beam (d) triangle
20. 20.🔍 Which is the odd one out? (a) aluminium (b) clay pottery (c) dry wood (d) cotton cloth
21. 21.Which of these is a pulley? (a) a playground slide (b) a bottle opener (c) a chisel (d) a well-bucket rope wheel
22. 22.⚙️ Which simple machine is a flagpole rope wheel? (a) pulley (b) wheel and axle (c) wedge (d) screw
23. 23.True or false: to repeat each test is good testing. (a) True (b) False
24. 24.True or false: a water filter helps people make power from sunlight. (a) True (b) False
25. 25.🪢 Tension or compression: a bridge pier? (a) tension (b) compression
26. 26.True or false: to wear safety goggles is not safe. (a) True (b) False
27. 27.True or false: to wear safety goggles is safe. (a) False (b) True
28. 28.🔢 To follow the engineering design process, what comes right after “Plan”? (a) Create (b) Test (c) Ask (d) Improve
29. 29.🔢 To follow the engineering design process, what comes right after “Imagine”? (a) Plan (b) Improve (c) Create (d) Test
30. 30.♻️ Reduce, reuse or recycle: pulp old paper? (a) reuse (b) recycle (c) reduce
31. 31.True or false: “a flat deck on piers” is a beam bridge. (a) True (b) False
32. 32.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
33. 33.⚖️ A lever balances when … (a) the bar is short (b) both weights are equal (c) the fulcrum moves (d) turning effects match
34. 34.🪝 A pulley system lifts a 100 N load with an effort of 50 N. What is its mechanical advantage (MA)?
35. 35.Which of these uses a dome? (a) a fort gateway (b) an old stone bridge (c) a roof truss (d) a round palace roof
36. 36.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
37. 37.True or false: a chemical engineer designs factory machines. (a) True (b) False
38. 38.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
39. 39.⚖️ A seesaw balances. Ravi (380 N) sits 3 m from the pivot on one side; Kabir (? N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?
40. 40.Which job does a civil engineer do? (a) builds hospital scanners (b) designs car engines (c) refines crude oil (d) lays out a highway

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