Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 818 · 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.⚙️ A screw is really … (a) a bent lever (b) a tiny pulley (c) a ramp wrapped round (d) a kind of wheel
2. 2.🏋️ A 9 kg box is lifted straight up by 3 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
3. 3.🛞 More or less friction: a grippy rubber sole? (a) more friction (b) less friction
4. 4.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
5. 5.💪 A bag has a mass of 10 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
6. 6.True or false: a waterfall is made by engineers. (a) False (b) True
7. 7.📐 How many millimetres are in 1 centimetre? (a) 10 (b) 1000 (c) 100 (d) 5
8. 8.📋 Your team’s budget is ₹103. You must buy one roll of tape for ₹15. Straws cost ₹5 each. What is the greatest number of straws you can buy?
9. 9.🧑‍🔧 Which kind of engineer plans a power grid? (a) chemical (b) computer (c) electrical (d) aerospace
10. 10.Which of these is a lever? (a) a crowbar (b) a nut and bolt (c) a window blind cord (d) a playground slide
11. 11.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
12. 12.📋 For a model bridge challenge, is “spend at most ₹100” a constraint or a criterion? (a) a criterion (b) a constraint
13. 13.🪢 Tension is a force that … (a) heats things (b) turns things (c) pulls or stretches (d) pushes or squeezes
14. 14.Which of these uses an arch? (a) a shelf on two brackets (b) a round palace roof (c) a crane arm (d) a fort gateway
15. 15.🧱 Which property matters most for a skipping rope? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
16. 16.🔺 Why can an arch carry heavy loads? (a) it is hollow (b) it works in compression (c) it bends easily (d) it is very light
17. 17.🦺 What protects your eyes when sawing or drilling? (a) a cap (b) nothing (c) safety goggles (d) sunglasses
18. 18.True or false: a bridge helps people carry many people far. (a) False (b) True
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) rigid (b) wobbly
20. 20.🌉 In a suspension bridge, the main cables are in … (a) no force (b) friction (c) tension (d) compression
21. 21.🤝 In a design team, who shares out the jobs? (a) tester (b) team leader (c) recorder (d) builder
22. 22.🏋️ A force of 110 N did 880 J of work. How many metres did the object move?
23. 23.Which of these is reuse (use again)? (a) carry a cloth bag (b) print on both sides (c) refill a water bottle (d) switch off unused lights
24. 24.🪝 A winch has a wheel of radius 5 cm and an axle of radius 1 cm. What effort on the wheel lifts a 150 N bucket on the axle, in newtons? (ideal)
25. 25.🔍 Which is the odd one out? (a) a wheel on ball bearings (b) skating on ice (c) a smooth steel slide (d) a box pushed on carpet
26. 26.🛠️ What does an engineer mainly do? (a) only paints pictures (b) sells tickets (c) designs useful solutions (d) grows crops
27. 27.Which of these is found in nature? (a) a bridge (b) a lift (c) a waterfall (d) a railway track
28. 28.📋 Your team’s budget is ₹32. You must buy one roll of tape for ₹10. Straws cost ₹1 each. What is the greatest number of straws you can buy?
29. 29.♻️ A family used to throw away 10 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 6 weeks?
30. 30.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a glass sheet 2 N, a wooden plank 5 N, a carpet 6 N, sandpaper 7 N. Which surface gave the least friction? (a) a carpet (b) a wooden plank (c) a glass sheet (d) sandpaper
31. 31.🛠️ People need to keep food fresh longer. Which invention helps? (a) a fridge (b) a dam (c) a water filter (d) a train
32. 32.🌉 Which bridge type: “a flat deck on piers”? (a) beam bridge (b) arch bridge (c) suspension bridge
33. 33.♻️ Which is the BEST order to think about waste? (a) recycle, reuse, reduce (b) reuse, recycle, reduce (c) burn, bury, forget (d) reduce, reuse, recycle
34. 34.🧑‍🔧 Which kind of engineer writes app software? (a) computer (b) civil (c) biomedical (d) aerospace
35. 35.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) cardboard (d) paper
36. 36.True or false: a rough doormat gives more friction. (a) True (b) False
37. 37.True or false: a pair of scissors is a class 3 lever (effort in the middle). (a) True (b) False
38. 38.Which job is a hammer for? (a) drive in a nail (b) measure an angle (c) smooth a rough edge (d) measure a long length
39. 39.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 270 g and design C held 320 g. Which design was the weakest? (a) design B (b) design A (c) design C
40. 40.♻️ A school bench is made from 250 recycled plastic bottles. How many benches can be made from 3000 bottles?

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