Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 778 · 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.True or false: a grippy rubber sole gives more friction. (a) True (b) False
2. 2.🪝 What does a single fixed pulley change? (a) the size of the load (b) the direction of pull (c) the colour of rope (d) gravity
3. 3.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) stacking loose bricks (c) building tall and narrow (d) using flexible joints
4. 4.📋 Your team’s budget is ₹22. You must buy one roll of tape for ₹10. Straws cost ₹2 each. What is the greatest number of straws you can buy?
5. 5.Which of these needs a flexible material? (a) a car seat belt (b) an oven glove (c) a water tank (d) a car windscreen
6. 6.True or false: to guess, do not measure is good testing. (a) False (b) True
7. 7.⚖️ In a class 1 lever, what is in the middle? (a) the load (b) the effort (c) the fulcrum (d) nothing
8. 8.♻️ Which is the BEST order to think about waste? (a) recycle, reuse, reduce (b) reuse, recycle, reduce (c) reduce, reuse, recycle (d) burn, bury, forget
9. 9.🪝 Fixed or movable pulley: which one halves the effort? (a) a fixed pulley (b) a movable pulley
10. 10.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
11. 11.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 10 cm wide base, tower B is 60 cm tall on a 10 cm base and tower C is 280 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
12. 12.🪝 A well winch has a handle (wheel) of radius 16 cm turning an axle of radius 4 cm. What is its mechanical advantage (MA)?
13. 13.🔢 To follow the engineering design process, which comes first: “Ask” or “Improve”? (a) Improve (b) Ask
14. 14.🧪 Why do engineers make prototypes? (a) to test ideas cheaply (b) to sell them at once (c) to decorate a room (d) to avoid testing
15. 15.True or false: “lift a cup of water” is a criterion (a goal). (a) True (b) False
16. 16.🛞 Is friction helpful or a problem here: walking without slipping? (a) a problem (b) helpful
17. 17.🪝 Fixed or movable pulley: which one hangs on the rope loop? (a) a fixed pulley (b) a movable pulley
18. 18.🪢 Which material is good in tension but useless in compression? (a) a stone (b) a brick (c) a rope (d) a concrete block
19. 19.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) steel (d) rubber
20. 20.⚖️ In a class 3 lever, what is in the middle? (a) the fulcrum (b) the effort (c) the pulley (d) the load
21. 21.📐 A model car is drawn so that 1 cm stands for 10 cm. The car is 4 cm long in the drawing. How long is the real car, in centimetres?
22. 22.🏋️ Mechanical advantage (MA) = … (a) load × effort (b) effort ÷ load (c) load ÷ effort (d) load + effort
23. 23.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
24. 24.🤝 A team of 2 shares 4 equal jobs fairly. Each job takes 7 minutes. How many minutes does each person work?
25. 25.🔍 Which is the odd one out? (a) run while holding tools (b) cut away from your body (c) carry scissors closed (d) let adults use hot glue
26. 26.🪢 Compression is a force that … (a) cools things (b) makes light (c) pushes or squeezes (d) pulls or stretches
27. 27.True or false: plucking a mango is a push. (a) True (b) False
28. 28.🦺 In the workshop, is it safe to carry scissors closed? (a) safe (b) not safe
29. 29.⚖️ A lever bar balances. The load is ? N at 10 cm from the fulcrum. The effort is 100 N at 80 cm from the fulcrum on the other side. What is the missing force in newtons?
30. 30.🧪 What is a prototype? (a) a sales poster (b) a broken part (c) the final product (d) an early test model
31. 31.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
32. 32.Which of these is reduce (use less)? (a) buy less packaging (b) pulp old paper (c) melt cans into new cans (d) turn plastic into tiles
33. 33.🦺 In the workshop, is it safe to cut away from your body? (a) safe (b) not safe
34. 34.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
35. 35.🪝 Fixed or movable pulley: which one needs effort = load? (a) a movable pulley (b) a fixed pulley
36. 36.⚖️ Which class of lever is a crowbar? (a) class 1 (b) class 2 (c) class 3
37. 37.🏋️ In which unit is work measured? (a) watt hour (b) joule (J) (c) metre (m) (d) newton (N)
38. 38.🔍 Which is the odd one out? (a) a table leg (b) a temple column (c) a tall bridge tower (d) a hanging lamp chain
39. 39.🔄 What is the FIRST step of the engineering design process? (a) Create (b) Test (c) Ask (d) Improve
40. 40.Which job does an electrical engineer do? (a) designs electric motors (b) designs hearing aids (c) writes app software (d) designs school networks

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