Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 549 · 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 bridge type: “the longest spans of all”? (a) beam bridge (b) arch bridge (c) suspension bridge
2. 2.🔍 Which is the odd one out? (a) a rough doormat (b) a wheel on ball bearings (c) a tyre with deep treads (d) chalk on a gym bar
3. 3.⚖️ Going along a lever from one end to the other, the order is: effort, load, fulcrum. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
4. 4.🪝 A well winch has a handle (wheel) of radius 21 cm turning an axle of radius 3 cm. What is its mechanical advantage (MA)?
5. 5.Which of these is found in nature? (a) a bicycle (b) a lift (c) a cloud (d) a ceiling fan
6. 6.🏋️ In which unit is work measured? (a) metre (m) (b) newton (N) (c) watt hour (d) joule (J)
7. 7.🌉 Which bridge type: “pushes out on its ends”? (a) suspension bridge (b) arch bridge (c) beam bridge
8. 8.🧪 A paper bridge was tested three times. It held 350 g, 270 g and 220 g. What is the mean (average) load it held, in grams?
9. 9.🔄 What is the FIRST step of the engineering design process? (a) Ask (b) Create (c) Test (d) Improve
10. 10.⚖️ A seesaw balances. Kabir (280 N) sits 1 m from the pivot on one side; Ravi (140 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
11. 11.🪢 A sign weighing 180 N hangs from 3 identical vertical ropes that share the load equally. What is the tension in each rope, in newtons?
12. 12.True or false: a dam helps people store water for summer. (a) True (b) False
13. 13.🔍 Which is the odd one out? (a) having a wide base (b) adding steel to concrete (c) using flexible joints (d) raising heavy tanks high
14. 14.Which of these is caused by gravity? (a) a compass needle turns (b) a river flows downhill (c) pedalling a cycle (d) a fridge magnet sticks
15. 15.True or false: to change only one thing is good testing. (a) False (b) True
16. 16.Which job is a saw for? (a) drive in a nail (b) grip and bend wire (c) measure a long length (d) cut a wooden plank
17. 17.💪 Which force is at work: a compass needle turns? (a) gravity (b) muscular force (c) friction (d) magnetic force
18. 18.🔍 Which is the odd one out? (a) a temple column (b) a tow rope on a car (c) a pillar under a roof (d) a table leg
19. 19.True or false: to record every result is poor testing. (a) False (b) True
20. 20.⚖️ A lever bar balances. The load is ? N at 30 cm from the fulcrum. The effort is 150 N at 60 cm from the fulcrum on the other side. What is the missing force in newtons?
21. 21.🏋️ A smooth ramp is 8 m long and rises 2 m. What effort pushes a 1400 N box up it, in newtons? (ideal ramp, no friction)
22. 22.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
23. 23.🔺 A frame shaped like a square is made of straws joined by loose pins, with 0 corner-to-corner braces. Is it rigid or wobbly? (a) rigid (b) wobbly
24. 24.True or false: a lintel over a door uses a beam. (a) True (b) False
25. 25.📋 A design meets every criterion but costs more than the budget. Is it acceptable? (a) no, it breaks a limit (b) yes, always (c) only if it is red (d) yes, it works
26. 26.📋 For a model bridge challenge, is “be under 30 cm tall” a constraint or a criterion? (a) a criterion (b) a constraint
27. 27.⚖️ Along a straight bar, measured from the left end, the effort is at 30 cm, the fulcrum at 20 cm and the load at 40 cm. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
28. 28.🔢 To build and test a straw bridge, which is the LAST step? (a) sketch three ideas (b) choose and draw one (c) read the challenge rules (d) strengthen the weak part
29. 29.🔍 Which is the odd one out? (a) a squeezed spring (b) a temple column (c) a hanging lamp chain (d) a stone in an arch
30. 30.True or false: your forearm is a class 3 lever (effort in the middle). (a) False (b) True
31. 31.🔍 Which is the odd one out? (a) steel (b) aluminium (c) glass (d) brass
32. 32.♻️ Is wind a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
33. 33.🔧 Which tool would you use to make a hole in wood? (a) a hand drill (b) a screwdriver (c) a protractor (d) a hammer
34. 34.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
35. 35.🔢 To follow the engineering design process, which comes first: “Imagine” or “Plan”? (a) Plan (b) Imagine
36. 36.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
37. 37.🔍 Which is the odd one out? (a) put tools back after use (b) let adults use hot glue (c) tie back long hair (d) use a cracked tool
38. 38.🌉 Which bridge type: “the simplest bridge”? (a) arch bridge (b) beam bridge (c) suspension bridge
39. 39.🔧 Which tool would you use to measure a long length? (a) a tape measure (b) a hammer (c) a screwdriver (d) a hand drill
40. 40.🔍 Which is the odd one out? (a) play near a moving drill (b) wear safety goggles (c) cut away from your body (d) let adults use hot glue

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