Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 678 · 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.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
2. 2.Which of these is a wheel and axle? (a) a well winch handle (b) a crowbar (c) a chisel (d) a bottle opener
3. 3.Which job does a chemical engineer do? (a) designs hearing aids (b) designs car engines (c) designs factory machines (d) designs a paint factory
4. 4.🏋️ Work is done when a force moves something … (a) without moving it (b) through a distance (c) very slowly (d) only upwards
5. 5.⚖️ In a class 1 lever, what is in the middle? (a) the load (b) the fulcrum (c) the effort (d) nothing
6. 6.True or false: “finish in 40 minutes” is a criterion (a goal). (a) False (b) True
7. 7.True or false: “lift a cup of water” is a criterion (a goal). (a) True (b) False
8. 8.True or false: “stand in a fan breeze” is a constraint (a limit). (a) False (b) True
9. 9.Which of these is caused by friction? (a) a river flows downhill (b) an apple falls down (c) a rolling ball slows (d) a compass needle turns
10. 10.🔍 Which is the odd one out? (a) a smooth steel slide (b) powder on a carrom board (c) skating on ice (d) chalk on a gym bar
11. 11.♻️ Is diesel a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
12. 12.🧱 Which property matters most for a boat hull? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
13. 13.🪢 A concrete slab weighing 16000 N rests evenly on 8 identical pillars. What compression force does each pillar carry, in newtons?
14. 14.⚖️ Along a straight bar, measured from the left end, the effort is at 20 cm, the fulcrum at 60 cm and the load at 50 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
15. 15.True or false: to ask who will use it is the Test step. (a) True (b) False
16. 16.⚖️ Going along a lever from one end to the other, the order is: effort, fulcrum, load. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
17. 17.🛠️ A scientist asks “why does it happen?”. An engineer mostly asks … (a) how can we build it? (b) why is the sky blue? (c) what is for lunch? (d) who won the match?
18. 18.🏋️ A 7 kg box is lifted straight up by 3 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
19. 19.🏋️ A force of 250 N pushes a cart 1 m along the floor. How much work is done, in joules?
20. 20.📐 A model car is drawn so that 1 cm stands for 30 cm. The car is 12 cm long in the drawing. How long is the real car, in centimetres?
21. 21.📋 Constraint: the tower must be no taller than 60 cm. The team’s tower is 60 cm tall. Is it within the constraint? (a) Yes (b) No
22. 22.🧪 Three prototype bridges were tested with the same method. Design A held 380 g, design B held 330 g and design C held 280 g. Which design was the strongest? (a) design A (b) design B (c) design C
23. 23.🏋️ Pushing a crate 3 m took 1380 J of work. What force was used, in newtons?
24. 24.🪝 A pulley system has 2 rope sections holding up the load. To lift the load by 9 m, how many metres of rope must you pull?
25. 25.📐 On a plan, 1 cm stands for 2 m. A real bridge is 12 m long. How long is it on the plan, in centimetres?
26. 26.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
27. 27.📋 For a model bridge challenge, is “carry 10 coins” a constraint or a criterion? (a) a criterion (b) a constraint
28. 28.Which job does an electrical engineer do? (a) builds hospital scanners (b) designs a gearbox (c) keeps data safe online (d) plans a power grid
29. 29.⚖️ A seesaw balances. Kabir (340 N) sits 1 m from the pivot on one side; Arjun (170 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
30. 30.🔢 To follow the engineering design process, what comes right after “Create”? (a) Imagine (b) Improve (c) Ask (d) Test
31. 31.⚖️ Going along a lever from one end to the other, the order is: fulcrum, effort, load. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
32. 32.True or false: a plug pin needs an electrical conductor. (a) False (b) True
33. 33.Which of these is reduce (use less)? (a) carry a cloth bag (b) give old books away (c) melt glass into new jars (d) pulp old paper
34. 34.🧪 The first prototype held 230 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
35. 35.Which of these needs a transparent material? (a) a yoga mat (b) a raincoat (c) a spectacle lens (d) a boat hull
36. 36.🔄 Which design-process step is it to brainstorm many ideas? (a) Imagine (b) Improve (c) Plan (d) Create
37. 37.📐 A model car is drawn so that 1 cm stands for 40 cm. The car is 4 cm long in the drawing. How long is the real car, in centimetres?
38. 38.📋 Criteria are … (a) the limits on money (b) goals a design must meet (c) the team names (d) the tools you use
39. 39.🪝 A bucket weighing 80 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
40. 40.⚙️ Which simple machine is a claw hammer on a nail? (a) pulley (b) inclined plane (c) screw (d) lever

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