Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 850 · 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 branch of engineering works on aeroplanes and rockets? (a) computer (b) aerospace (c) civil (d) chemical
2. 2.⚙️ 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
3. 3.⚖️ A seesaw balances. Zoya (480 N) sits 4 m from the pivot on one side; Asha (? N) sits 4 m from the pivot on the other side. What is the missing weight in newtons?
4. 4.🧑‍🔧 Which kind of engineer designs knee implants? (a) biomedical (b) civil (c) chemical (d) mechanical
5. 5.🤝 In a design team, who writes down results? (a) tester (b) team leader (c) recorder (d) builder
6. 6.🪝 What does a single fixed pulley change? (a) gravity (b) the size of the load (c) the colour of rope (d) the direction of pull
7. 7.🏋️ A force of 210 N did 2100 J of work. How many metres did the object move?
8. 8.🪝 A bucket weighing 40 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
9. 9.🧪 The first prototype held 200 g. After the team improved it, the new prototype held 250 g. How many more grams did it hold?
10. 10.🛞 More or less friction: a rough doormat? (a) less friction (b) more friction
11. 11.Which of these is found in nature? (a) a dam (b) a ceiling fan (c) a coral reef (d) a bridge
12. 12.🔍 Which is the odd one out? (a) spend at most ₹100 (b) use at most 20 straws (c) be under 30 cm tall (d) hold up 500 g
13. 13.🔺 Which strong shape does an igloo use? (a) beam (b) arch (c) dome (d) triangle
14. 14.Which of these is a pulley? (a) a wood screw (b) a nutcracker (c) a window blind cord (d) a screw jack
15. 15.🪢 A concrete slab weighing 3300 N rests evenly on 3 identical pillars. What compression force does each pillar carry, in newtons?
16. 16.🔍 Which is the odd one out? (a) a pillar under a roof (b) a stretched rubber band (c) a hanging lamp chain (d) a tent guy rope
17. 17.🧑‍🔧 Which kind of engineer lays out a highway? (a) civil (b) electrical (c) aerospace (d) computer
18. 18.True or false: oil on a squeaky hinge gives more friction. (a) True (b) False
19. 19.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
20. 20.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 270 g. How many more grams did it hold?
21. 21.📐 Why do engineers use scale drawings? (a) to save ink only (b) to hide sizes (c) to make them pretty (d) big things fit on paper
22. 22.🔄 Which design-process step is it to try it out? (a) Create (b) Ask (c) Test (d) Imagine
23. 23.🔍 Which is the odd one out? (a) a wheelchair ramp (b) a claw hammer on a nail (c) a truck loading ramp (d) a road up a hill
24. 24.⚖️ Turning effect = force × … (a) colour of bar (b) time taken (c) mass of fulcrum (d) distance from fulcrum
25. 25.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a fridge (c) a telescope (d) a microscope
26. 26.🔍 Which is the odd one out? (a) brass (b) clay pottery (c) aluminium (d) graphite
27. 27.🔺 Which strong shape does a plank over a drain use? (a) beam (b) triangle (c) arch (d) dome
28. 28.True or false: an aerospace engineer designs hearing aids. (a) True (b) False
29. 29.Which of these happens in the Ask step? (a) think of wild ideas (b) try it out (c) make it better, retest (d) ask who will use it
30. 30.🤝 Is it good or poor teamwork to ignore the team plan? (a) good teamwork (b) poor teamwork
31. 31.⚙️ Which simple machine is a crane hook block? (a) inclined plane (b) screw (c) pulley (d) wheel and axle
32. 32.True or false: a movable pulley hangs on the rope loop. (a) False (b) True
33. 33.🔍 Which is the odd one out? (a) spend at most ₹100 (b) use only paper and tape (c) fit on a school desk (d) carry 10 coins
34. 34.⚖️ A seesaw balances. Meena (390 N) sits ? m from the pivot on one side; Ravi (130 N) sits 3 m from the pivot on the other side. What is the missing distance in metres?
35. 35.True or false: a water filter helps people make water safe to drink. (a) True (b) False
36. 36.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: sandpaper 8 N, a glass sheet 2 N, a wooden plank 3 N, a carpet 6 N. How many newtons more were needed on sandpaper than on a glass sheet?
37. 37.🔍 Which is the odd one out? (a) a crane lifting cable (b) a hanging lamp chain (c) a swing chain (d) a temple column
38. 38.🔄 Which design-process step is it to follow the plan to build? (a) Ask (b) Create (c) Imagine (d) Test
39. 39.🔢 To follow the engineering design process, which comes first: “Ask” or “Test”? (a) Ask (b) Test
40. 40.True or false: to find the limits is the Test step. (a) False (b) True

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