Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 560 · 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 model car is drawn so that 1 cm stands for 20 cm. The car is 4 cm long in the drawing. How long is the real car, in centimetres?
2. 2.📐 On a plan, 1 cm stands for 5 m. A wall is 8 cm long on the plan. How long is the real wall, in metres?
3. 3.🏋️ A machine lifts a load of 280 N when you push with 140 N. What is its mechanical advantage (MA)?
4. 4.⚖️ Along a straight bar, measured from the left end, the effort is at 10 cm, the fulcrum at 0 cm and the load at 30 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
5. 5.Which of these is in tension (pulled)? (a) a stone in an arch (b) a brick at a wall base (c) a bridge pier (d) a swing chain
6. 6.🔺 Which strong shape does a planetarium roof use? (a) triangle (b) arch (c) dome (d) beam
7. 7.🔺 Which strong shape does a bicycle frame use? (a) beam (b) dome (c) triangle (d) arch
8. 8.⚙️ A screw is really … (a) a kind of wheel (b) a tiny pulley (c) a ramp wrapped round (d) a bent lever
9. 9.🔍 Which is the odd one out? (a) using a heavy roof (b) raising heavy tanks high (c) keeping a simple shape (d) building tall and narrow
10. 10.True or false: a bottle opener is a wheel and axle. (a) True (b) False
11. 11.True or false: a civil engineer designs a flyover. (a) True (b) False
12. 12.⚖️ What is the pivot point of a lever called? (a) the load (b) the fulcrum (c) the axle (d) the effort
13. 13.💪 A force is a … (a) push or a pull (b) unit of time (c) type of sound (d) kind of colour
14. 14.🧑‍🔧 Which kind of engineer designs electric motors? (a) computer (b) electrical (c) civil (d) aerospace
15. 15.True or false: “use only paper and tape” is a criterion (a goal). (a) False (b) True
16. 16.What does the builder do? (a) cuts and joins parts (b) keeps the design notes (c) writes down results (d) tracks what is used up
17. 17.Which of these is reduce (use less)? (a) turn plastic into tiles (b) melt cans into new cans (c) refill a water bottle (d) buy less packaging
18. 18.🔍 Which is the odd one out? (a) a round doorknob (b) a nutcracker (c) a well winch handle (d) a steering wheel
19. 19.📋 Criterion: the model bridge must hold at least 200 g. In the test it held 250 g. Does it meet the criterion? (a) No (b) Yes
20. 20.📋 Criterion: the model bridge must hold at least 500 g. In the test it held 550 g. Does it meet the criterion? (a) No (b) Yes
21. 21.🔄 Which design-process step is it to check it against goals? (a) Create (b) Plan (c) Test (d) Ask
22. 22.Which job is a spirit level for? (a) check a shelf is level (b) measure an angle (c) cut a wooden plank (d) turn a screw
23. 23.🪝 A well winch has a handle (wheel) of radius 4 cm turning an axle of radius 2 cm. What is its mechanical advantage (MA)?
24. 24.📐 A model car is drawn so that 1 cm stands for 10 cm. The car is 14 cm long in the drawing. How long is the real car, in centimetres?
25. 25.🧑‍🔧 Which kind of engineer runs a fertiliser plant? (a) computer (b) mechanical (c) chemical (d) civil
26. 26.Which of these is a pulley? (a) a bottle cap (b) a jar lid (c) an axe blade (d) a well-bucket rope wheel
27. 27.🪝 A load of 300 N hangs from a pulley system in which 3 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
28. 28.True or false: a banyan tree is made by engineers. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) a banyan tree (b) a bicycle (c) a rainbow (d) a cloud
30. 30.🏋️ Pushing a crate 2 m took 120 J of work. What force was used, in newtons?
31. 31.🧪 In a fair test, how many things do you change at a time? (a) two (b) all of them (c) none (d) one
32. 32.🤝 Why do engineers work in teams? (a) to work alone (b) many skills and ideas (c) to finish nothing (d) to argue more
33. 33.Which of these happens in the Imagine step? (a) think of wild ideas (b) draw a labelled diagram (c) measure its performance (d) make a prototype
34. 34.Which of these uses a beam? (a) a planetarium roof (b) a round palace roof (c) a truss bridge side (d) a shelf on two brackets
35. 35.⚖️ A lever balances when … (a) both weights are equal (b) the bar is short (c) the fulcrum moves (d) turning effects match
36. 36.🔍 Which is the odd one out? (a) carry 10 coins (b) finish in 40 minutes (c) use only paper and tape (d) spend at most ₹100
37. 37.Which of these needs a waterproof material? (a) a cooking pot handle (b) a switch contact (c) a yoga mat (d) a raincoat
38. 38.⚙️ Which simple machine is a steering wheel? (a) screw (b) wheel and axle (c) lever (d) inclined plane
39. 39.♻️ Which is the BEST order to think about waste? (a) reuse, recycle, reduce (b) recycle, reuse, reduce (c) burn, bury, forget (d) reduce, reuse, recycle
40. 40.⚙️ Which simple machine is a jar lid? (a) pulley (b) lever (c) inclined plane (d) screw

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