Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 744 · 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.🌉 In a stone arch bridge, the stones are in … (a) compression (b) tension (c) no force (d) friction
2. 2.True or false: a mechanical engineer designs satellites. (a) True (b) False
3. 3.🏋️ In which unit is work measured? (a) newton (N) (b) watt hour (c) metre (m) (d) joule (J)
4. 4.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
5. 5.📐 A model car is drawn so that 1 cm stands for 30 cm. The car is 5 cm long in the drawing. How long is the real car, in centimetres?
6. 6.🔍 Which is the odd one out? (a) a bridge (b) a dam (c) a rainbow (d) a water filter
7. 7.🔺 A frame shaped like a pentagon is made of straws joined by loose pins, with 2 corner-to-corner braces. Is it rigid or wobbly? (a) wobbly (b) rigid
8. 8.📐 A beam is 990 cm long. How long is it in metres? =
9. 9.True or false: an aerospace engineer designs electric motors. (a) False (b) True
10. 10.🌉 A beam bridge is 150 m long. Piers split it into equal spans of 15 m. How many spans are there?
11. 11.What does the builder do? (a) keeps the design notes (b) puts the model together (c) writes down results (d) shares out the jobs
12. 12.🪝 Fixed or movable pulley: which one hangs on the rope loop? (a) a movable pulley (b) a fixed pulley
13. 13.📋 Constraint: the tower must be no taller than 30 cm. The team’s tower is 30 cm tall. Is it within the constraint? (a) No (b) Yes
14. 14.♻️ 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
15. 15.True or false: coal is a non-renewable energy source. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) test it only once (b) hide a failed test (c) repeat each test (d) guess, do not measure
17. 17.🔧 Which tool would you use to smooth a rough edge? (a) a tape measure (b) a screwdriver (c) sandpaper (d) pliers
18. 18.♻️ Reduce, reuse or recycle: pulp old paper? (a) reuse (b) recycle (c) reduce
19. 19.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) computer (b) chemical (c) biomedical (d) civil
20. 20.🔍 Which is the odd one out? (a) be under 30 cm tall (b) lift a cup of water (c) finish in 40 minutes (d) use at most 20 straws
21. 21.Which of these is a screw? (a) a bottle opener (b) a truck loading ramp (c) a jar lid (d) an axe blade
22. 22.🌉 Which bridge type: “the simplest bridge”? (a) arch bridge (b) suspension bridge (c) beam bridge
23. 23.🛞 More or less friction: a wheel on ball bearings? (a) less friction (b) more friction
24. 24.🔍 Which is the odd one out? (a) be under 30 cm tall (b) lift a cup of water (c) hold up 500 g (d) keep ice for 1 hour
25. 25.💪 A box weighs 180 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
26. 26.♻️ A family used to throw away 7 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 3 weeks?
27. 27.🪢 A stage stands on 7 identical legs and each leg is squeezed with 250 N. What is the total load on the stage, in newtons?
28. 28.⚖️ A seesaw balances. Arjun (? N) sits 2 m from the pivot on one side; Asha (340 N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?
29. 29.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
30. 30.⚖️ Turning effect = force × … (a) distance from fulcrum (b) colour of bar (c) mass of fulcrum (d) time taken
31. 31.🔢 To follow the engineering design process, which comes first: “Imagine” or “Create”? (a) Create (b) Imagine
32. 32.🔄 Which design-process step is it to ask who will use it? (a) Plan (b) Test (c) Ask (d) Imagine
33. 33.🤝 Is it good or poor teamwork to help a stuck teammate? (a) poor teamwork (b) good teamwork
34. 34.📋 For a model bridge challenge, is “float for 1 minute” a constraint or a criterion? (a) a criterion (b) a constraint
35. 35.True or false: a boat hull needs a waterproof material. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) raising heavy tanks high (b) adding cross bracing (c) making brittle joints (d) building tall and narrow
37. 37.🛠️ What does an engineer mainly do? (a) sells tickets (b) only paints pictures (c) grows crops (d) designs useful solutions
38. 38.💪 A box weighs 170 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
39. 39.🏋️ A force of 490 N did 3920 J of work. How many metres did the object move?
40. 40.🔍 Which is the odd one out? (a) keep ice for 1 hour (b) carry 10 coins (c) spend at most ₹100 (d) roll at least 2 metres

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