Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 679 · 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 strong shape does a shelf on two brackets use? (a) dome (b) triangle (c) arch (d) beam
2. 2.Which of these is a beam bridge? (a) deck hangs from cables (b) stones squeezed together (c) the longest spans of all (d) good for short gaps
3. 3.True or false: a civil engineer designs a metro tunnel. (a) True (b) False
4. 4.True or false: to change lots at once is good testing. (a) True (b) False
5. 5.⚖️ In a class 1 lever, what is in the middle? (a) the effort (b) the load (c) the fulcrum (d) nothing
6. 6.True or false: a screw jack is a wedge. (a) True (b) False
7. 7.Which job is a hand drill for? (a) turn a screw (b) drive in a nail (c) make a hole in wood (d) cut a wooden plank
8. 8.⚖️ Going along a lever from one end to the other, the order is: effort, fulcrum, load. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
9. 9.🏋️ Work is done when a force moves something … (a) without moving it (b) only upwards (c) very slowly (d) through a distance
10. 10.📋 A constraint is … (a) a final test (b) a kind of glue (c) a goal for success (d) a limit you must keep to
11. 11.🔢 To follow the engineering design process, which comes first: “Plan” or “Imagine”? (a) Plan (b) Imagine
12. 12.🤝 A teammate’s idea seems odd. What should you do first? (a) laugh at it (b) walk away (c) listen and ask why (d) ignore it
13. 13.True or false: opening a drawer is a push. (a) False (b) True
14. 14.True or false: a mechanical engineer designs factory machines. (a) True (b) False
15. 15.🪝 A bucket weighing 90 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
16. 16.Which need does a solar panel meet? (a) talk to someone far away (b) make power from sunlight (c) cross a wide river (d) make water safe to drink
17. 17.True or false: a rainbow is found in nature. (a) True (b) False
18. 18.⚖️ Along a straight bar, measured from the left end, the effort is at 50 cm, the fulcrum at 30 cm and the load at 40 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
19. 19.⚖️ A seesaw balances. Asha (520 N) sits ? m from the pivot on one side; Zoya (390 N) sits 4 m from the pivot on the other side. What is the missing distance in metres?
20. 20.🔍 Which is the odd one out? (a) a nutcracker (b) a crowbar (c) a seesaw (d) a steering wheel
21. 21.True or false: a pillar under a roof is in tension (pulled). (a) True (b) False
22. 22.🏋️ A force of 450 N pushes a cart 9 m along the floor. How much work is done, in joules?
23. 23.⚖️ Which class of lever is a nutcracker? (a) class 1 (b) class 2 (c) class 3
24. 24.🏋️ A 1 kg box is lifted straight up by 1 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
25. 25.True or false: “a rope bridge in hills” is a suspension bridge. (a) False (b) True
26. 26.🪝 A winch has a wheel of radius 2 cm and an axle of radius 1 cm. What effort on the wheel lifts a 360 N bucket on the axle, in newtons? (ideal)
27. 27.What does the materials manager do? (a) writes down results (b) cuts and joins parts (c) collects the supplies (d) shares out the jobs
28. 28.🪝 Fixed or movable pulley: which one only changes direction? (a) a fixed pulley (b) a movable pulley
29. 29.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
30. 30.🪢 Which material is good in tension but useless in compression? (a) a brick (b) a rope (c) a stone (d) a concrete block
31. 31.📋 Your team’s budget is ₹107. You must buy one roll of tape for ₹15. Straws cost ₹4 each. What is the greatest number of straws you can buy?
32. 32.🏋️ Pushing a crate 7 m took 3430 J of work. What force was used, in newtons?
33. 33.⚖️ Which class of lever is a seesaw? (a) class 2 (b) class 1 (c) class 3
34. 34.🏋️ In which unit is work measured? (a) newton (N) (b) metre (m) (c) watt hour (d) joule (J)
35. 35.🌉 Which bridge type: “deck hangs from cables”? (a) suspension bridge (b) arch bridge (c) beam bridge
36. 36.True or false: a suspension cable is in tension (pulled). (a) True (b) False
37. 37.Which of these is reduce (use less)? (a) print on both sides (b) plant in old tyres (c) melt glass into new jars (d) turn plastic into tiles
38. 38.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a wooden plank 7 N, sandpaper 10 N, ice 4 N, a glass sheet 6 N. How many newtons more were needed on sandpaper than on ice?
39. 39.Which of these is a screw? (a) a claw hammer on a nail (b) a chisel (c) a well winch handle (d) a screw jack
40. 40.🌉 In a stone arch bridge, the stones are in … (a) compression (b) no force (c) friction (d) tension

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