Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 599 · 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 seesaw balances. Asha (540 N) sits 1 m from the pivot on one side; Meena (? N) sits 3 m from the pivot on the other side. What is the missing weight in newtons?
2. 2.🔍 Which is the odd one out? (a) finish in 40 minutes (b) hold up 500 g (c) carry 10 coins (d) float for 1 minute
3. 3.🪝 Fixed or movable pulley: which one needs effort = load? (a) a movable pulley (b) a fixed pulley
4. 4.📋 For a model bridge challenge, is “keep ice for 1 hour” a constraint or a criterion? (a) a criterion (b) a constraint
5. 5.🔺 Which strong shape does an igloo use? (a) beam (b) triangle (c) arch (d) dome
6. 6.📋 Your team’s budget is ₹105. You must buy one roll of tape for ₹20. Straws cost ₹3 each. What is the greatest number of straws you can buy?
7. 7.🤝 Is it good or poor teamwork to own up to a mistake? (a) good teamwork (b) poor teamwork
8. 8.True or false: coal is a renewable energy source. (a) True (b) False
9. 9.🔢 To follow the engineering design process, what comes right after “Test”? (a) Improve (b) Ask (c) Create (d) Imagine
10. 10.🔧 Which tool would you use to measure an angle? (a) a spirit level (b) a hammer (c) a saw (d) a protractor
11. 11.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cotton wool (d) cardboard
12. 12.🔺 One side of a straw bridge is a row of 13 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
13. 13.📐 A model car is drawn so that 1 cm stands for 40 cm. The car is 8 cm long in the drawing. How long is the real car, in centimetres?
14. 14.Which of these is reduce (use less)? (a) switch off unused lights (b) use a jar as a pen stand (c) refill a water bottle (d) plant in old tyres
15. 15.True or false: a computer engineer writes app software. (a) False (b) True
16. 16.📋 For a model bridge challenge, is “use at most 20 straws” a constraint or a criterion? (a) a constraint (b) a criterion
17. 17.⚖️ A seesaw balances. Arjun (? N) sits 2 m from the pivot on one side; Ravi (240 N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?
18. 18.🤝 In a design team, who writes down results? (a) team leader (b) recorder (c) builder (d) tester
19. 19.Which of these is in compression (pushed)? (a) a crane lifting cable (b) a tall bridge tower (c) a tow rope on a car (d) a hanging lamp chain
20. 20.🔍 Which is the odd one out? (a) touch a hot glue tip (b) carry scissors closed (c) put tools back after use (d) clamp wood before sawing
21. 21.🧱 Which property matters most for a plug pin? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
22. 22.📋 Criteria are … (a) goals a design must meet (b) the team names (c) the limits on money (d) the tools you use
23. 23.⚖️ Which class of lever is a pair of scissors? (a) class 2 (b) class 3 (c) class 1
24. 24.🏋️ A force of 380 N did 2280 J of work. How many metres did the object move?
25. 25.🏚️ Why is a wide base safer? (a) it is colourful (b) it is lighter (c) it is harder to tip over (d) it is taller
26. 26.🧪 What is a prototype? (a) the final product (b) a broken part (c) an early test model (d) a sales poster
27. 27.♻️ Reduce, reuse or recycle: buy less packaging? (a) recycle (b) reuse (c) reduce
28. 28.🔍 Which is the odd one out? (a) let adults use hot glue (b) put tools back after use (c) cut towards your hand (d) wear safety goggles
29. 29.Which job does a computer engineer do? (a) designs a metro tunnel (b) writes app software (c) designs bicycle gears (d) designs artificial limbs
30. 30.⚖️ A seesaw balances. Ravi (100 N) sits 2 m from the pivot on one side; Kabir (? N) sits 1 m from the pivot on the other side. What is the missing weight in newtons?
31. 31.Which of these happens in the Test step? (a) brainstorm many ideas (b) try it out (c) think of wild ideas (d) find the limits
32. 32.⚖️ Going along a lever from one end to the other, the order is: load, effort, fulcrum. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
33. 33.🏚️ Three solid model towers are made of the same material. Tower A is 280 cm tall on a 40 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 240 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
34. 34.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
35. 35.⚖️ A lever bar balances. The load is ? N at 50 cm from the fulcrum. The effort is 500 N at 30 cm from the fulcrum on the other side. What is the missing force in newtons?
36. 36.True or false: to smooth a rough edge, use sandpaper. (a) True (b) False
37. 37.🏋️ A force of 90 N pushes a cart 3 m along the floor. How much work is done, in joules?
38. 38.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
39. 39.Which job does a mechanical engineer do? (a) designs power lines (b) builds hospital scanners (c) runs a fertiliser plant (d) designs bicycle gears
40. 40.🏋️ A force of 130 N pushes a cart 9 m along the floor. How much work is done, in joules?

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