Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 296 · 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 class of lever is a bottle opener? (a) class 1 (b) class 2 (c) class 3
2. 2.Which of these needs a heat insulator? (a) a car seat belt (b) a cooking pot handle (c) a boat hull (d) an umbrella cover
3. 3.🏚️ Three solid model towers are made of the same material. Tower A is 280 cm tall on a 40 cm wide base, tower B is 90 cm tall on a 30 cm base and tower C is 100 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
4. 4.⚖️ Along a straight bar, measured from the left end, the effort is at 70 cm, the fulcrum at 30 cm and the load at 100 cm. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
5. 5.📋 For a model bridge challenge, is “finish in 40 minutes” a constraint or a criterion? (a) a criterion (b) a constraint
6. 6.🔺 How do engineers stop a square frame from wobbling? (a) add a diagonal brace (b) make it bigger (c) take off a side (d) paint it
7. 7.True or false: “the longest spans of all” is a suspension bridge. (a) False (b) True
8. 8.True or false: to change only one thing is good testing. (a) True (b) False
9. 9.True or false: your forearm is a class 2 lever (load in the middle). (a) False (b) True
10. 10.🛠️ Which of these is a problem an engineer could solve? (a) a road that floods (b) a boring story (c) a sad song (d) a lost cricket match
11. 11.Which of these is in tension (pulled)? (a) a table leg (b) a pillar under a roof (c) a brick at a wall base (d) a swing chain
12. 12.True or false: a civil engineer refines crude oil. (a) False (b) True
13. 13.True or false: to test it only once is good testing. (a) False (b) True
14. 14.🔺 Which strong shape does an igloo use? (a) dome (b) arch (c) beam (d) triangle
15. 15.🔍 Which is the odd one out? (a) a stone in an arch (b) a pillar under a roof (c) a tug of war rope (d) a tall bridge tower
16. 16.🪝 Fixed or movable pulley: which one hangs on the rope loop? (a) a movable pulley (b) a fixed pulley
17. 17.⚖️ Which class of lever is a pair of kitchen tongs? (a) class 2 (b) class 3 (c) class 1
18. 18.⚙️ How many simple machines are there in the usual list? (a) 12 (b) 3 (c) 6 (d) 10
19. 19.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
20. 20.🧑‍🔧 Which kind of engineer designs satellites? (a) civil (b) aerospace (c) computer (d) chemical
21. 21.🦺 Who should use hot glue guns and power tools in a kids’ project? (a) a stranger (b) the youngest child (c) any child alone (d) an adult
22. 22.Which job does a mechanical engineer do? (a) builds a website (b) designs electric motors (c) designs hearing aids (d) designs factory machines
23. 23.🔢 To build and test a straw bridge, which is the FIRST step? (a) sketch three ideas (b) strengthen the weak part (c) read the challenge rules (d) build it with straws
24. 24.Which of these needs a waterproof material? (a) a raincoat (b) a spectacle lens (c) a car windscreen (d) a plug pin
25. 25.📋 Your team’s budget is ₹52. You must buy one roll of tape for ₹5. Straws cost ₹4 each. What is the greatest number of straws you can buy?
26. 26.🔍 Which is the odd one out? (a) measure the same way (b) use the same load (c) test it only once (d) change only one thing
27. 27.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 350 g and design C held 400 g. Which design was the weakest? (a) design B (b) design C (c) design A
28. 28.🌉 In a suspension bridge, the main cables are in … (a) friction (b) compression (c) no force (d) tension
29. 29.📋 Your team’s budget is ₹26. You must buy one roll of tape for ₹15. Straws cost ₹1 each. What is the greatest number of straws you can buy?
30. 30.True or false: a bridge pier is in compression (pushed). (a) False (b) True
31. 31.🤝 Is it good or poor teamwork to blame others for faults? (a) good teamwork (b) poor teamwork
32. 32.Which of these is made by engineers? (a) a mobile phone (b) a volcano (c) a mountain (d) a banyan tree
33. 33.🪝 A well winch has a handle (wheel) of radius 20 cm turning an axle of radius 5 cm. What is its mechanical advantage (MA)?
34. 34.🔍 Which is the odd one out? (a) skating on ice (b) oil on a squeaky hinge (c) a wheel on ball bearings (d) chalk on a gym bar
35. 35.🧪 Why repeat a test three times? (a) to use more paper (b) it looks busy (c) the first is wrong (d) to get reliable results
36. 36.Which need does a bridge meet? (a) go through a mountain (b) cross a wide river (c) make water safe to drink (d) talk to someone far away
37. 37.Which of these is reuse (use again)? (a) turn plastic into tiles (b) print on both sides (c) refill a water bottle (d) pulp old paper
38. 38.Which job is a saw for? (a) turn a screw (b) measure an angle (c) cut a wooden plank (d) smooth a rough edge
39. 39.🪝 A load of 880 N hangs from a pulley system in which 4 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
40. 40.🪢 Tension or compression: a tall bridge tower? (a) tension (b) compression

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