Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 233 · 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 of these needs a transparent material? (a) a tea flask lining (b) an oven glove (c) a magnifier lens (d) a skipping rope
2. 2.Which need does a microscope meet? (a) see very tiny things (b) go through a mountain (c) keep food fresh longer (d) cross a wide river
3. 3.🧑‍🔧 Which kind of engineer designs bicycle gears? (a) biomedical (b) computer (c) mechanical (d) aerospace
4. 4.🔺 Why can an arch carry heavy loads? (a) it bends easily (b) it is hollow (c) it is very light (d) it works in compression
5. 5.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
6. 6.🔍 Which is the odd one out? (a) adding steel to concrete (b) having a wide base (c) fitting rubber base pads (d) leaving out steel bars
7. 7.📐 On a plan, 1 cm stands for 20 m. A wall is 15 cm long on the plan. How long is the real wall, in metres?
8. 8.🔢 To follow the engineering design process, which comes first: “Improve” or “Ask”? (a) Improve (b) Ask
9. 9.Which need does a train meet? (a) reach a top floor fast (b) carry many people far (c) cross a wide river (d) make power from sunlight
10. 10.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) steel (d) plastic
11. 11.📋 Your team’s budget is ₹75. You must buy one roll of tape for ₹20. Straws cost ₹5 each. What is the greatest number of straws you can buy?
12. 12.💪 Which force is at work: rubbing hands warms them? (a) gravity (b) magnetic force (c) friction (d) muscular force
13. 13.Which of these makes a building safer in earthquakes? (a) fitting rubber base pads (b) building tall and narrow (c) making brittle joints (d) stacking loose bricks
14. 14.⚙️ Which simple machine is a steering wheel? (a) wheel and axle (b) screw (c) lever (d) pulley
15. 15.What does the tester do? (a) runs the tests (b) writes down results (c) puts the model together (d) tracks what is used up
16. 16.📋 For a model bridge challenge, is “fit on a school desk” a constraint or a criterion? (a) a criterion (b) a constraint
17. 17.True or false: “use at most 20 straws” is a constraint (a limit). (a) False (b) True
18. 18.🪢 Tension or compression: a tug of war rope? (a) tension (b) compression
19. 19.Which of these is reduce (use less)? (a) reuse gift paper (b) refill a water bottle (c) fix a dripping tap (d) pulp old paper
20. 20.⚖️ Along a straight bar, measured from the left end, the effort is at 0 cm, the fulcrum at 20 cm and the load at 30 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
21. 21.⚖️ A lever bar balances. The load is ? N at 20 cm from the fulcrum. The effort is 60 N at 30 cm from the fulcrum on the other side. What is the missing force in newtons?
22. 22.📐 A beam is 580 cm long. How long is it in metres? =
23. 23.🦺 In the workshop, is it safe to cut towards your hand? (a) safe (b) not safe
24. 24.📐 A model car is drawn so that 1 cm stands for 10 cm. The car is 10 cm long in the drawing. How long is the real car, in centimetres?
25. 25.True or false: “float for 1 minute” is a criterion (a goal). (a) False (b) True
26. 26.🛠️ Is a railway track made by engineers or found in nature? (a) made by engineers (b) found in nature
27. 27.🤝 Is it good or poor teamwork to laugh at ideas? (a) good teamwork (b) poor teamwork
28. 28.🪝 What does a single fixed pulley change? (a) the direction of pull (b) the colour of rope (c) gravity (d) the size of the load
29. 29.🛞 More or less friction: a rough doormat? (a) less friction (b) more friction
30. 30.True or false: a window blind cord is a pulley. (a) True (b) False
31. 31.🪢 A beam rests on two supports and is pressed down in the middle. Its bottom edge is … (a) stretched (tension) (b) not affected (c) twisted (d) squeezed (compression)
32. 32.🌉 In a suspension bridge, the main cables are in … (a) compression (b) no force (c) tension (d) friction
33. 33.🔍 Which is the odd one out? (a) a waterfall (b) a volcano (c) a satellite (d) a seashell
34. 34.🪝 A load of 400 N hangs from a pulley system in which 2 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
35. 35.♻️ Reduce, reuse or recycle: melt cans into new cans? (a) reuse (b) recycle (c) reduce
36. 36.🏋️ Can a simple machine reduce the work done? (a) only on Mondays (b) yes, by half (c) yes, always (d) no, work stays the same
37. 37.🧪 Why repeat a test three times? (a) to use more paper (b) the first is wrong (c) to get reliable results (d) it looks busy
38. 38.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 1 N, a wooden plank 5 N, a carpet 7 N, sandpaper 8 N. How many newtons more were needed on sandpaper than on ice?
39. 39.Which of these happens in the Create step? (a) check it against goals (b) brainstorm many ideas (c) think of wild ideas (d) build the model
40. 40.🤝 A teammate’s idea seems odd. What should you do first? (a) laugh at it (b) ignore it (c) listen and ask why (d) walk away

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