Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 469 · 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 of these uses triangles? (a) a round palace roof (b) an igloo (c) a roof truss (d) a lintel over a door
2. 2.🧪 The first prototype held 290 g. After the team improved it, the new prototype held 350 g. How many more grams did it hold?
3. 3.📋 Your team’s budget is ₹128. You must buy one roll of tape for ₹10. Straws cost ₹5 each. What is the greatest number of straws you can buy?
4. 4.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: sandpaper 8 N, ice 4 N, a wooden plank 5 N, a carpet 7 N. How many newtons more were needed on sandpaper than on ice?
5. 5.🔍 Which is the odd one out? (a) a rough doormat (b) oil on a squeaky hinge (c) a smooth steel slide (d) powder on a carrom board
6. 6.What does the recorder do? (a) puts the model together (b) cuts and joins parts (c) keeps the design notes (d) shares out the jobs
7. 7.💪 In which unit do we measure force? (a) metre (m) (b) newton (N) (c) second (s) (d) litre (L)
8. 8.Which of these is caused by gravity? (a) a river flows downhill (b) lifting a school bag (c) brakes stop a bicycle (d) squeezing a lemon
9. 9.True or false: “the longest spans of all” is a suspension bridge. (a) True (b) False
10. 10.⚙️ Which simple machine is the tip of a nail? (a) inclined plane (b) screw (c) pulley (d) wedge
11. 11.Which need does a lift meet? (a) keep food fresh longer (b) store water for summer (c) carry many people far (d) reach a top floor fast
12. 12.Which job does an electrical engineer do? (a) designs a metro tunnel (b) plans a power grid (c) designs satellites (d) designs a flyover
13. 13.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) plastic (d) glass
14. 14.🏋️ A force of 40 N pushes a cart 2 m along the floor. How much work is done, in joules?
15. 15.📐 On a plan, 1 cm stands for 5 m. A wall is 3 cm long on the plan. How long is the real wall, in metres?
16. 16.True or false: an aerospace engineer builds rockets. (a) False (b) True
17. 17.True or false: to talk over others is good teamwork. (a) True (b) False
18. 18.📋 Criteria are … (a) the team names (b) the limits on money (c) goals a design must meet (d) the tools you use
19. 19.🧑‍🔧 Which kind of engineer designs power lines? (a) chemical (b) electrical (c) computer (d) aerospace
20. 20.True or false: a door stopper is a wedge. (a) True (b) False
21. 21.🪢 Tension or compression: a stone in an arch? (a) compression (b) tension
22. 22.🔍 Which is the odd one out? (a) graphite (b) steel (c) clay pottery (d) iron
23. 23.Which need does a solar panel meet? (a) make water safe to drink (b) cross a wide river (c) carry many people far (d) make power from sunlight
24. 24.🔄 Which design-process step is it to define the problem? (a) Plan (b) Improve (c) Imagine (d) Ask
25. 25.🪢 Tension or compression: a tall bridge tower? (a) tension (b) compression
26. 26.🏋️ A 7 kg box is lifted straight up by 5 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
27. 27.🔍 Which is the odd one out? (a) brass (b) plastic (c) rubber (d) dry wood
28. 28.📋 For a model bridge challenge, is “float for 1 minute” a constraint or a criterion? (a) a constraint (b) a criterion
29. 29.⚙️ Which simple machine is a bottle opener? (a) wheel and axle (b) wedge (c) lever (d) inclined plane
30. 30.True or false: to ignore the team plan is poor teamwork. (a) False (b) True
31. 31.True or false: a satellite is found in nature. (a) True (b) False
32. 32.🧱 Which property matters most for a raincoat? (a) waterproof (b) transparent (c) heat insulator (d) flexible
33. 33.Which job does a civil engineer do? (a) designs school networks (b) designs satellites (c) plans a space mission (d) designs a flyover
34. 34.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 230 g and design C held 180 g. Which design was the weakest? (a) design C (b) design A (c) design B
35. 35.True or false: an electrical engineer plans a power grid. (a) False (b) True
36. 36.True or false: a bridge helps people cross a wide river. (a) True (b) False
37. 37.🏋️ Mechanical advantage (MA) = … (a) effort ÷ load (b) load × effort (c) load ÷ effort (d) load + effort
38. 38.💪 Which force is at work: pedalling a cycle? (a) magnetic force (b) gravity (c) friction (d) muscular force
39. 39.🔢 To follow the engineering design process, what comes right after “Test”? (a) Improve (b) Imagine (c) Plan (d) Create
40. 40.🔺 A flat frame has 4 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?

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