Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 578 · 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 is the odd one out? (a) aluminium (b) iron (c) graphite (d) clay pottery
2. 2.True or false: a volcano is made by engineers. (a) True (b) False
3. 3.🌉 A beam bridge 550 m long rests on the two river banks and on piers in between, making equal spans of 50 m. How many piers are there?
4. 4.📋 Your team’s budget is ₹28. You must buy one roll of tape for ₹5. Straws cost ₹2 each. What is the greatest number of straws you can buy?
5. 5.💪 A box weighs 390 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
6. 6.What does the recorder do? (a) runs the tests (b) cuts and joins parts (c) collects the supplies (d) writes down results
7. 7.What does the team leader do? (a) writes down results (b) puts the model together (c) keeps the design notes (d) keeps the team on track
8. 8.🔧 Which tool would you use to make a hole in wood? (a) a protractor (b) a saw (c) sandpaper (d) a hand drill
9. 9.📋 Constraint: the tower must be no taller than 90 cm. The team’s tower is 88 cm tall. Is it within the constraint? (a) Yes (b) No
10. 10.🔍 Which is the odd one out? (a) skating on ice (b) a tyre with deep treads (c) a grippy rubber sole (d) chalk on a gym bar
11. 11.🔢 To follow the engineering design process, what comes right after “Ask”? (a) Imagine (b) Improve (c) Create (d) Test
12. 12.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a heavy roof (c) leaving out steel bars (d) using a light roof
13. 13.Which of these is a suspension bridge? (a) the simplest bridge (b) a log across a stream (c) the longest spans of all (d) stones squeezed together
14. 14.🔺 A flat frame has 7 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
15. 15.🛠️ People need to cross a wide river. Which invention helps? (a) a dam (b) a solar panel (c) a bridge (d) a fridge
16. 16.📋 A design meets every criterion but costs more than the budget. Is it acceptable? (a) yes, always (b) only if it is red (c) no, it breaks a limit (d) yes, it works
17. 17.🌉 Which bridge type: “tall towers hold cables”? (a) arch bridge (b) beam bridge (c) suspension bridge
18. 18.🪢 Tension or compression: a suspension cable? (a) tension (b) compression
19. 19.🤝 A team of 4 shares 8 equal jobs fairly. Each job takes 9 minutes. How many minutes does each person work?
20. 20.True or false: to change only one thing is poor testing. (a) False (b) True
21. 21.⚖️ A seesaw balances. Meena (240 N) sits 4 m from the pivot on one side; Asha (? N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?
22. 22.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
23. 23.🔍 Which is the odd one out? (a) having a wide base (b) stacking loose bricks (c) adding cross bracing (d) using a light roof
24. 24.True or false: a bottle opener is a class 2 lever (load in the middle). (a) False (b) True
25. 25.Which of these is caused by gravity? (a) rubbing hands warms them (b) a thrown ball comes down (c) a compass needle turns (d) pedalling a cycle
26. 26.📋 A constraint is … (a) a final test (b) a kind of glue (c) a goal for success (d) a limit you must keep to
27. 27.🪝 A well winch has a handle (wheel) of radius 24 cm turning an axle of radius 3 cm. What is its mechanical advantage (MA)?
28. 28.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “load it with coins”? (a) load it with coins (b) read the challenge rules
29. 29.📐 On a plan, 1 cm stands for 2 m. A wall is 20 cm long on the plan. How long is the real wall, in metres?
30. 30.⚖️ A lever bar balances. The load is ? N at 30 cm from the fulcrum. The effort is 270 N at 90 cm from the fulcrum on the other side. What is the missing force in newtons?
31. 31.📋 Your team’s budget is ₹129. You must buy one roll of tape for ₹5. Straws cost ₹5 each. What is the greatest number of straws you can buy?
32. 32.True or false: pushing a trolley is a push. (a) False (b) True
33. 33.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
34. 34.Which job does a chemical engineer do? (a) designs artificial limbs (b) designs a paint factory (c) plans a dam (d) designs bicycle gears
35. 35.🌉 In a stone arch bridge, the stones are in … (a) compression (b) no force (c) tension (d) friction
36. 36.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 10 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 10 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
37. 37.📋 For a model bridge challenge, is “use only paper and tape” a constraint or a criterion? (a) a constraint (b) a criterion
38. 38.🪢 Which material is good in tension but useless in compression? (a) a stone (b) a brick (c) a concrete block (d) a rope
39. 39.🔍 Which is the odd one out? (a) a stone in an arch (b) a squeezed spring (c) a table leg (d) a tug of war rope
40. 40.📐 On a plan, 1 cm stands for 2 m. A real bridge is 8 m long. How long is it on the plan, in centimetres?

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