Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 797 · 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 cart is pulled to the right with 35 N and to the left with 40 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
2. 2.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
3. 3.🔄 Which design-process step is it to define the problem? (a) Plan (b) Ask (c) Create (d) Improve
4. 4.Which of these needs a flexible material? (a) a cooking pot handle (b) an oven glove (c) a hair band (d) the core of a wire
5. 5.🏋️ A force of 250 N pushes a cart 3 m along the floor. How much work is done, in joules?
6. 6.🧑‍🔧 Which branch of engineering designs machines with moving parts? (a) mechanical (b) biomedical (c) chemical (d) civil
7. 7.🔍 Which is the odd one out? (a) test it only once (b) hide a failed test (c) change only one thing (d) change lots at once
8. 8.💪 Which force is at work: an apple falls down? (a) muscular force (b) friction (c) gravity (d) magnetic force
9. 9.Which of these is a suspension bridge? (a) good for short gaps (b) a flat deck on piers (c) a rope bridge in hills (d) stones squeezed together
10. 10.🔄 In which step do engineers draw a labelled diagram? (a) Improve (b) Plan (c) Test (d) Ask
11. 11.Which of these happens in the Ask step? (a) fix the weak part (b) brainstorm many ideas (c) find the limits (d) measure its performance
12. 12.Which of these is a screw? (a) the tip of a nail (b) a seesaw (c) a nut and bolt (d) a truck loading ramp
13. 13.True or false: to guess, do not measure is good testing. (a) True (b) False
14. 14.🔍 Which is the odd one out? (a) hide a failed test (b) repeat each test (c) skip writing results (d) test it only once
15. 15.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
16. 16.📋 Constraint: the tower must be no taller than 60 cm. The team’s tower is 54 cm tall. Is it within the constraint? (a) No (b) Yes
17. 17.True or false: a nut and bolt is a screw. (a) True (b) False
18. 18.⚖️ A lever bar balances. The load is 800 N at ? cm from the fulcrum. The effort is 240 N at 100 cm from the fulcrum on the other side. What is the missing distance in centimetres?
19. 19.Which job does a chemical engineer do? (a) designs a metro tunnel (b) writes app software (c) lays out a highway (d) runs a fertiliser plant
20. 20.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
21. 21.🪝 A pulley system lifts a 440 N load with an effort of 220 N. What is its mechanical advantage (MA)?
22. 22.🔍 Which is the odd one out? (a) hold up 500 g (b) be under 30 cm tall (c) finish in 40 minutes (d) spend at most ₹100
23. 23.📋 Criterion: the model bridge must hold at least 500 g. In the test it held 650 g. Does it meet the criterion? (a) Yes (b) No
24. 24.🔺 One side of a straw bridge is a row of 11 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
25. 25.🔢 To follow the engineering design process, what comes right after “Test”? (a) Plan (b) Improve (c) Create (d) Ask
26. 26.📐 A beam is 200 cm long. How long is it in metres? =
27. 27.Which of these is in tension (pulled)? (a) a pillar under a roof (b) a table leg (c) a stretched rubber band (d) a tall bridge tower
28. 28.🔄 Which design-process step is it to list the materials? (a) Improve (b) Ask (c) Plan (d) Imagine
29. 29.🪝 Fixed or movable pulley: which one halves the effort? (a) a fixed pulley (b) a movable pulley
30. 30.🔢 To follow the engineering design process, which comes first: “Improve” or “Ask”? (a) Improve (b) Ask
31. 31.🪝 A pulley system lifts a 60 N load with an effort of 20 N. What is its mechanical advantage (MA)?
32. 32.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) flexible (c) waterproof (d) transparent
33. 33.🧑‍🔧 Which kind of engineer designs factory machines? (a) electrical (b) civil (c) biomedical (d) mechanical
34. 34.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: sandpaper 8 N, ice 1 N, a glass sheet 3 N, a carpet 7 N. Which surface gave the least friction? (a) a glass sheet (b) a carpet (c) sandpaper (d) ice
35. 35.⚖️ Which class of lever is a seesaw? (a) class 3 (b) class 2 (c) class 1
36. 36.🏋️ A machine lifts a load of 420 N when you push with 140 N. What is its mechanical advantage (MA)?
37. 37.Which of these is a suspension bridge? (a) cables tied down at ends (b) a curve under the deck (c) good for short gaps (d) a flat deck on piers
38. 38.🛞 Which surface gives the MOST friction to a sliding block? (a) ice (b) sandpaper (c) glass (d) polished marble
39. 39.True or false: a tea flask lining needs a flexible material. (a) True (b) False
40. 40.🛞 More or less friction: a grippy rubber sole? (a) less friction (b) more friction

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