Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 710 · 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.🔄 Which design-process step is it to dream up possible fixes? (a) Ask (b) Test (c) Create (d) Imagine
2. 2.🔍 Which is the odd one out? (a) a tyre with deep treads (b) a smooth steel slide (c) skating on ice (d) oil on a squeaky hinge
3. 3.⚖️ Along a straight bar, measured from the left end, the effort is at 40 cm, the fulcrum at 50 cm and the load at 30 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
4. 4.🤝 How do engineers share a design with others? (a) clear labelled sketches (b) no drawings at all (c) secret notes (d) only talking fast
5. 5.📐 How many centimetres are in 1 metre? (a) 60 (b) 1000 (c) 100 (d) 10
6. 6.True or false: sunlight is a renewable energy source. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) cotton cloth (b) iron (c) steel (d) aluminium
8. 8.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) leaving out steel bars (c) making brittle joints (d) keeping a simple shape
9. 9.True or false: a box pushed on carpet gives more friction. (a) True (b) False
10. 10.🧪 A paper bridge was tested three times. It held 300 g, 250 g and 260 g. What is the mean (average) load it held, in grams?
11. 11.True or false: a flagpole rope wheel is an inclined plane. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) fit on a school desk (b) use at most 20 straws (c) spend at most ₹100 (d) carry 10 coins
13. 13.🏚️ Three solid model towers are made of the same material. Tower A is 150 cm tall on a 30 cm wide base, tower B is 120 cm tall on a 30 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
14. 14.🧑‍🔧 Which branch of engineering designs machines with moving parts? (a) civil (b) chemical (c) mechanical (d) biomedical
15. 15.📋 For a model bridge challenge, is “finish in 40 minutes” a constraint or a criterion? (a) a constraint (b) a criterion
16. 16.Which need does a tunnel meet? (a) go through a mountain (b) make power from sunlight (c) keep food fresh longer (d) see very tiny things
17. 17.🏋️ A force of 30 N pushes a cart 1 m along the floor. How much work is done, in joules?
18. 18.True or false: to ignore the team plan is good teamwork. (a) False (b) True
19. 19.🤝 Is it good or poor teamwork to listen to every idea? (a) good teamwork (b) poor teamwork
20. 20.🪝 A pulley system lifts an 870 N load with an effort of 290 N. What is its mechanical advantage (MA)?
21. 21.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) raising heavy tanks high (c) using a light roof (d) having a wide base
22. 22.Which of these is in compression (pushed)? (a) a tow rope on a car (b) a crane lifting cable (c) a bridge pier (d) a swing chain
23. 23.💪 A bag has a mass of 32 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
24. 24.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a shake table (c) a microscope (d) a telescope
25. 25.🔍 Which is the odd one out? (a) change only one thing (b) repeat each test (c) measure the same way (d) skip writing results
26. 26.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “choose and draw one”? (a) choose and draw one (b) read the challenge rules
27. 27.Which need does a lift meet? (a) keep food fresh longer (b) reach a top floor fast (c) talk to someone far away (d) cross a wide river
28. 28.🛞 More or less friction: oil on a squeaky hinge? (a) more friction (b) less friction
29. 29.🪝 A load of 690 N hangs from a pulley system in which 3 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
30. 30.⚖️ Which class of lever is a seesaw? (a) class 2 (b) class 1 (c) class 3
31. 31.⚖️ Which class of lever is a nutcracker? (a) class 3 (b) class 1 (c) class 2
32. 32.🧑‍🔧 Which kind of engineer designs a gearbox? (a) computer (b) electrical (c) mechanical (d) biomedical
33. 33.True or false: to own up to a mistake is good teamwork. (a) False (b) True
34. 34.True or false: sand on a slippery path gives less friction. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) using flexible joints (b) using a light roof (c) raising heavy tanks high (d) having a wide base
36. 36.🪢 Tension is a force that … (a) turns things (b) pushes or squeezes (c) heats things (d) pulls or stretches
37. 37.True or false: a tug of war rope is in tension (pulled). (a) False (b) True
38. 38.True or false: a grippy rubber sole gives more friction. (a) True (b) False
39. 39.🧪 The first prototype held 200 g. After the team improved it, the new prototype held 250 g. How many more grams did it hold?
40. 40.⚖️ A lever bar balances. The load is ? N at 40 cm from the fulcrum. The effort is 240 N at 30 cm from the fulcrum on the other side. What is the missing force in newtons?

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