Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 302 · 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.⚖️ What is the pivot point of a lever called? (a) the load (b) the axle (c) the fulcrum (d) the effort
2. 2.🪝 A load of 510 N hangs from a pulley system in which 3 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
3. 3.📐 A model car is drawn so that 1 cm stands for 10 cm. The car is 7 cm long in the drawing. How long is the real car, in centimetres?
4. 4.True or false: to use the same load is good testing. (a) False (b) True
5. 5.Which of these is recycle (make new things)? (a) print on both sides (b) reuse gift paper (c) melt cans into new cans (d) give old books away
6. 6.True or false: a tent guy rope is in compression (pushed). (a) True (b) False
7. 7.🏋️ A force of 200 N pushes a cart 7 m along the floor. How much work is done, in joules?
8. 8.🧪 A paper bridge was tested three times. It held 310 g, 280 g and 280 g. What is the mean (average) load it held, in grams?
9. 9.🔍 Which is the odd one out? (a) cut away from your body (b) put tools back after use (c) leave tools on the floor (d) wear safety goggles
10. 10.📋 Your team’s budget is ₹26. You must buy one roll of tape for ₹15. Straws cost ₹1 each. What is the greatest number of straws you can buy?
11. 11.🔍 Which is the odd one out? (a) a grippy rubber sole (b) chalk on a gym bar (c) a rough doormat (d) oil on a squeaky hinge
12. 12.Which job does a biomedical engineer do? (a) designs bicycle gears (b) designs artificial limbs (c) designs aeroplane wings (d) builds a website
13. 13.📐 A beam is 870 cm long. How long is it in metres? =
14. 14.Which of these is caused by gravity? (a) an apple falls down (b) a fridge magnet sticks (c) lifting a school bag (d) brakes stop a bicycle
15. 15.🔍 Which is the odd one out? (a) finish in 40 minutes (b) spend at most ₹100 (c) hold up 500 g (d) fit on a school desk
16. 16.True or false: “the simplest bridge” is an arch bridge. (a) False (b) True
17. 17.True or false: a river is made by engineers. (a) False (b) True
18. 18.True or false: a movable pulley hangs on the rope loop. (a) False (b) True
19. 19.📋 Criteria are … (a) the tools you use (b) the limits on money (c) the team names (d) goals a design must meet
20. 20.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
21. 21.⚖️ On a seesaw, a heavier child should sit … (a) farther from the pivot (b) closer to the pivot (c) on the pivot (d) anywhere
22. 22.True or false: an aerospace engineer plans a space mission. (a) True (b) False
23. 23.🏋️ Pushing a crate 5 m took 200 J of work. What force was used, in newtons?
24. 24.True or false: powder on a carrom board gives more friction. (a) False (b) True
25. 25.🔺 One side of a straw bridge is a row of 3 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
26. 26.🛞 Is friction helpful or a problem here: striking a matchstick? (a) helpful (b) a problem
27. 27.True or false: a car seat belt needs a flexible material. (a) True (b) False
28. 28.♻️ Which energy source will never run out? (a) sunlight (b) diesel (c) coal (d) petrol
29. 29.♻️ A family used to throw away 5 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 5 weeks?
30. 30.🧑‍🔧 Which kind of engineer wires a new building? (a) biomedical (b) mechanical (c) electrical (d) aerospace
31. 31.True or false: a broom when sweeping is a class 3 lever (effort in the middle). (a) True (b) False
32. 32.📐 A beam is 160 cm long. How long is it in metres? =
33. 33.🔺 A beam bends under a load. Its top side is … (a) stretched (tension) (b) floating (c) squeezed (compression) (d) not affected
34. 34.⚖️ In a class 2 lever, what is in the middle? (a) the fulcrum (b) the axle (c) the effort (d) the load
35. 35.Which of these needs a waterproof material? (a) a raincoat (b) a plug pin (c) a tea flask lining (d) a spectacle lens
36. 36.📐 On a plan, 1 cm stands for 20 m. A wall is 8 cm long on the plan. How long is the real wall, in metres?
37. 37.🛠️ A scientist asks “why does it happen?”. An engineer mostly asks … (a) who won the match? (b) why is the sky blue? (c) how can we build it? (d) what is for lunch?
38. 38.Which of these is a suspension bridge? (a) the simplest bridge (b) pushes out on its ends (c) deck hangs from cables (d) a flat deck on piers
39. 39.🔍 Which is the odd one out? (a) stand in a fan breeze (b) hold up 500 g (c) float for 1 minute (d) spend at most ₹100
40. 40.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator

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