Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 128 · 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 truss bridge side use? (a) arch (b) beam (c) dome (d) triangle
2. 2.True or false: a hanging lamp chain is in compression (pushed). (a) False (b) True
3. 3.🪝 A load of 440 N hangs from a pulley system in which 2 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
4. 4.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
5. 5.Which of these is caused by friction? (a) shoes grip the floor (b) an apple falls down (c) a river flows downhill (d) squeezing a lemon
6. 6.Which job is a spirit level for? (a) drive in a nail (b) make a hole in wood (c) check a shelf is level (d) measure a long length
7. 7.Which job does an aerospace engineer do? (a) lays out a highway (b) plans a dam (c) designs aeroplane wings (d) runs a fertiliser plant
8. 8.⚖️ A lever balances when … (a) both weights are equal (b) turning effects match (c) the fulcrum moves (d) the bar is short
9. 9.True or false: a movable pulley makes you pull 2× rope. (a) True (b) False
10. 10.⚖️ Going along a lever from one end to the other, the order is: fulcrum, load, effort. Which class of lever is it? (a) class 2 (b) class 3 (c) class 1
11. 11.True or false: “stones squeezed together” is a beam bridge. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) use only paper and tape (b) hold up 500 g (c) stand in a fan breeze (d) keep ice for 1 hour
13. 13.♻️ A family used to throw away 9 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 11 weeks?
14. 14.🛠️ Is a seashell made by engineers or found in nature? (a) found in nature (b) made by engineers
15. 15.🧑‍🔧 Which kind of engineer refines crude oil? (a) biomedical (b) aerospace (c) mechanical (d) chemical
16. 16.📐 On a plan, 1 cm stands for 10 m. A real bridge is 30 m long. How long is it on the plan, in centimetres?
17. 17.True or false: to do all the work alone is good teamwork. (a) True (b) False
18. 18.🔧 Which tool would you use to measure an angle? (a) a tape measure (b) pliers (c) a protractor (d) a spanner
19. 19.🛞 Is friction helpful or a problem here: dragging a heavy box? (a) a problem (b) helpful
20. 20.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) on a thin pole (c) on the very top (d) low down
21. 21.🔺 Which strong shape does a lintel over a door use? (a) dome (b) beam (c) arch (d) triangle
22. 22.♻️ Reduce, reuse or recycle: fix a dripping tap? (a) reuse (b) reduce (c) recycle
23. 23.Which of these is in tension (pulled)? (a) a suspension cable (b) a brick at a wall base (c) a temple column (d) a bridge pier
24. 24.🔍 Which is the odd one out? (a) a rainbow (b) a lift (c) a mobile phone (d) a bridge
25. 25.⚖️ What is the pivot point of a lever called? (a) the load (b) the axle (c) the effort (d) the fulcrum
26. 26.⚖️ Which class of lever is a nutcracker? (a) class 2 (b) class 3 (c) class 1
27. 27.🔍 Which is the odd one out? (a) adding cross bracing (b) using a heavy roof (c) using a light roof (d) having a wide base
28. 28.🪢 Tension or compression: a hanging lamp chain? (a) compression (b) tension
29. 29.Which job does a civil engineer do? (a) designs electric motors (b) designs a flyover (c) refines crude oil (d) designs hearing aids
30. 30.🔍 Which is the odd one out? (a) a suspension cable (b) a stretched rubber band (c) a tow rope on a car (d) a table leg
31. 31.🔍 Which is the odd one out? (a) use a new load each time (b) guess, do not measure (c) change lots at once (d) repeat each test
32. 32.True or false: a beam balance is a class 2 lever (load in the middle). (a) True (b) False
33. 33.🏋️ A force of 210 N pushes a cart 5 m along the floor. How much work is done, in joules?
34. 34.True or false: “spend at most ₹100” is a constraint (a limit). (a) False (b) True
35. 35.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they bend, not break (c) they are cheap (d) they look nice
36. 36.🌉 A beam bridge is 540 m long. Piers split it into equal spans of 45 m. How many spans are there?
37. 37.🪝 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
38. 38.🪢 Tension or compression: a tow rope on a car? (a) tension (b) compression
39. 39.📋 For a model bridge challenge, is “spend at most ₹100” a constraint or a criterion? (a) a constraint (b) a criterion
40. 40.🪝 A well winch has a handle (wheel) of radius 6 cm turning an axle of radius 3 cm. What is its mechanical advantage (MA)?

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