Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 540 · 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 is the odd one out? (a) a mobile phone (b) a bridge (c) a seashell (d) a lift
2. 2.♻️ Reduce, reuse or recycle: use a jar as a pen stand? (a) reduce (b) recycle (c) reuse
3. 3.🏋️ A force of 190 N did 190 J of work. How many metres did the object move?
4. 4.⚖️ Which class of lever is a bottle opener? (a) class 3 (b) class 2 (c) class 1
5. 5.Which job is a protractor for? (a) check a shelf is level (b) make a hole in wood (c) measure an angle (d) grip and bend wire
6. 6.🧪 Three prototype bridges were tested with the same method. Design A held 310 g, design B held 360 g and design C held 260 g. Which design was the strongest? (a) design A (b) design C (c) design B
7. 7.True or false: to measure a long length, use a tape measure. (a) True (b) False
8. 8.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) adding cross bracing (c) adding steel to concrete (d) building tall and narrow
9. 9.🤝 Is it good or poor teamwork to share the work fairly? (a) poor teamwork (b) good teamwork
10. 10.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
11. 11.True or false: a fishing rod is a class 2 lever (load in the middle). (a) True (b) False
12. 12.🪝 Fixed or movable pulley: which one halves the effort? (a) a fixed pulley (b) a movable pulley
13. 13.Which job is a saw for? (a) turn a screw (b) measure an angle (c) grip and bend wire (d) cut a wooden plank
14. 14.⚖️ A seesaw balances. Zoya (? N) sits 2 m from the pivot on one side; Asha (260 N) sits 1 m from the pivot on the other side. What is the missing weight in newtons?
15. 15.Which of these needs a transparent material? (a) a water tank (b) a cooking pot handle (c) an umbrella cover (d) a spectacle lens
16. 16.⚖️ Along a straight bar, measured from the left end, the effort is at 40 cm, the fulcrum at 10 cm and the load at 50 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
17. 17.🌉 A beam bridge 250 m long rests on the two river banks and on piers in between, making equal spans of 50 m. How many piers are there?
18. 18.⚙️ Which simple machine is a crowbar? (a) lever (b) wheel and axle (c) pulley (d) wedge
19. 19.🔺 A frame shaped like a triangle is made of straws joined by loose pins, with 0 corner-to-corner braces. Is it rigid or wobbly? (a) wobbly (b) rigid
20. 20.🔍 Which is the odd one out? (a) a bridge pier (b) a tent guy rope (c) a table leg (d) a temple column
21. 21.📋 For a model bridge challenge, is “roll at least 2 metres” a constraint or a criterion? (a) a criterion (b) a constraint
22. 22.🌉 Which bridge type: “pushes out on its ends”? (a) arch bridge (b) suspension bridge (c) beam bridge
23. 23.🧑‍🔧 Which kind of engineer designs hearing aids? (a) civil (b) aerospace (c) electrical (d) biomedical
24. 24.🛠️ Is a bicycle made by engineers or found in nature? (a) found in nature (b) made by engineers
25. 25.📐 A beam is 150 cm long. How long is it in metres? =
26. 26.Which job does a chemical engineer do? (a) builds rockets (b) makes medicines in bulk (c) designs bicycle gears (d) designs a metro tunnel
27. 27.🛠️ People need to cross a wide river. Which invention helps? (a) a solar panel (b) a train (c) a bridge (d) a lift
28. 28.True or false: natural gas is a renewable energy source. (a) False (b) True
29. 29.⚖️ Along a straight bar, measured from the left end, the effort is at 0 cm, the fulcrum at 60 cm and the load at 30 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
30. 30.🔍 Which is the odd one out? (a) fit on a school desk (b) roll at least 2 metres (c) keep ice for 1 hour (d) carry 10 coins
31. 31.⚖️ A seesaw balances. Arjun (160 N) sits ? m from the pivot on one side; Meena (160 N) sits 1 m from the pivot on the other side. What is the missing distance in metres?
32. 32.🧪 A paper bridge was tested three times. It held 230 g, 210 g and 250 g. What is the mean (average) load it held, in grams?
33. 33.🛞 Is friction helpful or a problem here: dragging a heavy box? (a) helpful (b) a problem
34. 34.⚖️ A seesaw balances. Ravi (100 N) sits 2 m from the pivot on one side; Arjun (200 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
35. 35.📋 Criterion: the model bridge must hold at least 600 g. In the test it held 700 g. Does it meet the criterion? (a) No (b) Yes
36. 36.⚙️ Which simple machine is a wheelchair ramp? (a) lever (b) inclined plane (c) wheel and axle (d) pulley
37. 37.Which of these needs a transparent material? (a) the core of a wire (b) a plug pin (c) a magnifier lens (d) an umbrella cover
38. 38.Which of these is reuse (use again)? (a) use a jar as a pen stand (b) melt cans into new cans (c) buy less packaging (d) pulp old paper
39. 39.True or false: a civil engineer lays out a highway. (a) False (b) True
40. 40.Which of these is reuse (use again)? (a) plant in old tyres (b) carry a cloth bag (c) turn plastic into tiles (d) switch off unused lights

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