Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 535 · 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.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
2. 2.🏋️ Mechanical advantage (MA) = … (a) load ÷ effort (b) load × effort (c) load + effort (d) effort ÷ load
3. 3.🛞 More or less friction: skating on ice? (a) more friction (b) less friction
4. 4.True or false: a grippy rubber sole gives less friction. (a) True (b) False
5. 5.True or false: a computer engineer designs a gearbox. (a) True (b) False
6. 6.🧑‍🔧 Which kind of engineer lays out a highway? (a) biomedical (b) aerospace (c) civil (d) computer
7. 7.Which of these is in tension (pulled)? (a) a bridge pier (b) a squeezed spring (c) a brick at a wall base (d) a tow rope on a car
8. 8.⚖️ A seesaw balances. Meena (330 N) sits 2 m from the pivot on one side; Asha (220 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
9. 9.🪢 A concrete slab weighing 3000 N rests evenly on 5 identical pillars. What compression force does each pillar carry, in newtons?
10. 10.💪 A box weighs 300 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
11. 11.🏋️ Pushing a crate 6 m took 900 J of work. What force was used, in newtons?
12. 12.True or false: building tall and narrow makes a building less safe in earthquakes. (a) True (b) False
13. 13.🔢 To follow the engineering design process, which comes first: “Test” or “Imagine”? (a) Test (b) Imagine
14. 14.🛠️ People need to talk to someone far away. Which invention helps? (a) a water filter (b) a fridge (c) a telephone (d) a microscope
15. 15.🔧 Which tool would you use to make a hole in wood? (a) a screwdriver (b) a hand drill (c) sandpaper (d) a tape measure
16. 16.⚖️ Along a straight bar, measured from the left end, the effort is at 40 cm, the fulcrum at 80 cm and the load at 20 cm. Which class of lever is it? (a) class 2 (b) class 3 (c) class 1
17. 17.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
18. 18.📐 A beam is 350 cm long. How long is it in metres? =
19. 19.♻️ Which energy source will never run out? (a) petrol (b) diesel (c) coal (d) sunlight
20. 20.📋 Your team’s budget is ₹75. You must buy one roll of tape for ₹5. Straws cost ₹3 each. What is the greatest number of straws you can buy?
21. 21.What does the recorder do? (a) puts the model together (b) checks the goals are met (c) keeps the design notes (d) shares out the jobs
22. 22.True or false: “good for short gaps” is an arch bridge. (a) True (b) False
23. 23.📐 On a plan, 1 cm stands for 2 m. A wall is 2 cm long on the plan. How long is the real wall, in metres?
24. 24.True or false: “be under 30 cm tall” is a criterion (a goal). (a) True (b) False
25. 25.Which of these happens in the Plan step? (a) draw a labelled diagram (b) build the model (c) measure its performance (d) follow the plan to build
26. 26.Which of these is found in nature? (a) a bicycle (b) a satellite (c) a river (d) a lift
27. 27.📐 Why do engineers use scale drawings? (a) to make them pretty (b) big things fit on paper (c) to hide sizes (d) to save ink only
28. 28.⚖️ A lever bar balances. The load is 80 N at ? cm from the fulcrum. The effort is 40 N at 40 cm from the fulcrum on the other side. What is the missing distance in centimetres?
29. 29.True or false: a screw jack is a wedge. (a) False (b) True
30. 30.True or false: a steering wheel is a screw. (a) True (b) False
31. 31.⚖️ Going along a lever from one end to the other, the order is: effort, load, fulcrum. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
32. 32.💪 A cart is pulled to the right with 65 N and to the left with 60 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
33. 33.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 10 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 150 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
34. 34.Which of these is in compression (pushed)? (a) a temple column (b) a stretched rubber band (c) a hanging lamp chain (d) a tug of war rope
35. 35.Which of these happens in the Create step? (a) draw a labelled diagram (b) measure its performance (c) think of wild ideas (d) follow the plan to build
36. 36.⚖️ A seesaw balances. Ravi (600 N) sits 4 m from the pivot on one side; Meena (600 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
37. 37.🔢 To follow the engineering design process, which comes first: “Imagine” or “Create”? (a) Create (b) Imagine
38. 38.📋 For a model bridge challenge, is “stand in a fan breeze” a constraint or a criterion? (a) a constraint (b) a criterion
39. 39.🤝 A team plans for 60 minutes, builds for 55 minutes and then tests for 5 minutes, one after another. How many minutes is that in all?
40. 40.🛞 Rubbing your hands fast makes them … (a) warm (b) magnetic (c) wet (d) cold

Free engineering lessons, practice and worksheets at talentjr.in/engineering-for-kids