Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 407 · 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.True or false: a mechanical engineer plans a dam. (a) False (b) True
2. 2.True or false: a biomedical engineer designs a flyover. (a) False (b) True
3. 3.True or false: a switch contact needs an electrical conductor. (a) True (b) False
4. 4.🛞 Is friction helpful or a problem here: a knot holding a rope? (a) helpful (b) a problem
5. 5.True or false: a shelf on two brackets uses a beam. (a) True (b) False
6. 6.⚖️ Along a straight bar, measured from the left end, the effort is at 0 cm, the fulcrum at 30 cm and the load at 20 cm. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
7. 7.♻️ A project report has 20 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
8. 8.🧑‍🔧 Which kind of engineer designs a metro tunnel? (a) mechanical (b) electrical (c) civil (d) biomedical
9. 9.🦺 Who should use hot glue guns and power tools in a kids’ project? (a) any child alone (b) the youngest child (c) a stranger (d) an adult
10. 10.🏋️ A machine lifts a load of 360 N when you push with 120 N. What is its mechanical advantage (MA)?
11. 11.Which of these is made by engineers? (a) a cloud (b) a waterfall (c) a railway track (d) a seashell
12. 12.🏋️ A machine lifts a load of 680 N when you push with 170 N. What is its mechanical advantage (MA)?
13. 13.💪 Which force is at work: rain falls to the ground? (a) friction (b) muscular force (c) magnetic force (d) gravity
14. 14.🔍 Which is the odd one out? (a) sand on a slippery path (b) skating on ice (c) a box pushed on carpet (d) a grippy rubber sole
15. 15.True or false: an electrical engineer plans a power grid. (a) True (b) False
16. 16.♻️ Is diesel a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
17. 17.🪢 Which material is good in tension but useless in compression? (a) a concrete block (b) a stone (c) a brick (d) a rope
18. 18.🔍 Which is the odd one out? (a) a tug of war rope (b) a tent guy rope (c) a bridge pier (d) a suspension cable
19. 19.♻️ Is sunlight a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
20. 20.What does the recorder do? (a) writes down results (b) collects the supplies (c) runs the tests (d) puts the model together
21. 21.🪢 A sign weighing 150 N hangs from 5 identical vertical ropes that share the load equally. What is the tension in each rope, in newtons?
22. 22.🌉 What holds up a long beam bridge in the middle? (a) piers (b) balloons (c) nothing (d) cables only
23. 23.♻️ Is coal a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
24. 24.True or false: a seesaw is a class 1 lever (fulcrum in the middle). (a) True (b) False
25. 25.📐 Why do engineers use scale drawings? (a) to hide sizes (b) to make them pretty (c) big things fit on paper (d) to save ink only
26. 26.🛞 Why are tyres made with deep treads? (a) to grip the road (b) to save rubber (c) to look nice (d) to go slower
27. 27.🔄 Which design-process step is it to find the limits? (a) Create (b) Plan (c) Imagine (d) Ask
28. 28.🛠️ Is a dam made by engineers or found in nature? (a) made by engineers (b) found in nature
29. 29.What does the builder do? (a) collects the supplies (b) puts the model together (c) writes down results (d) keeps the design notes
30. 30.⚖️ Which class of lever is a pair of pliers? (a) class 2 (b) class 3 (c) class 1
31. 31.Which of these is in compression (pushed)? (a) a tug of war rope (b) a squeezed spring (c) a crane lifting cable (d) a tow rope on a car
32. 32.True or false: a computer engineer plans a space mission. (a) True (b) False
33. 33.What does the team leader do? (a) shares out the jobs (b) cuts and joins parts (c) collects the supplies (d) writes down results
34. 34.📐 A beam is 420 cm long. How long is it in metres? =
35. 35.True or false: to laugh at ideas is good teamwork. (a) False (b) True
36. 36.True or false: a swing chain is in compression (pushed). (a) True (b) False
37. 37.Which job is a spanner for? (a) turn a screw (b) tighten a nut (c) measure an angle (d) check a shelf is level
38. 38.📋 Your team’s budget is ₹33. You must buy one roll of tape for ₹10. Straws cost ₹3 each. What is the greatest number of straws you can buy?
39. 39.🏋️ A force of 270 N pushes a cart 7 m along the floor. How much work is done, in joules?
40. 40.🏋️ A force of 130 N pushes a cart 3 m along the floor. How much work is done, in joules?

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