Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 589 · 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.What does the team leader do? (a) writes down results (b) tracks what is used up (c) keeps the team on track (d) collects the supplies
2. 2.⚖️ Along a straight bar, measured from the left end, the effort is at 70 cm, the fulcrum at 50 cm and the load at 20 cm. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
3. 3.🪝 A load of 480 N hangs from a pulley system in which 3 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
4. 4.🔍 Which is the odd one out? (a) using a heavy roof (b) making brittle joints (c) fitting rubber base pads (d) raising heavy tanks high
5. 5.🏋️ Pushing a crate 3 m took 1200 J of work. What force was used, in newtons?
6. 6.🛠️ Engineers use maths and which other subject the most? (a) cooking (b) science (c) dance (d) music
7. 7.🔺 A flat frame has 7 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
8. 8.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “read the challenge rules”? (a) read the challenge rules (b) strengthen the weak part
9. 9.💪 A bag has a mass of 2 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
10. 10.True or false: “a curve under the deck” is an arch bridge. (a) False (b) True
11. 11.🌉 A beam bridge 210 m long is split by piers into 7 equal spans. How long is each span, in metres?
12. 12.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
13. 13.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) biomedical (b) computer (c) civil (d) chemical
14. 14.🔍 Which is the odd one out? (a) a water filter (b) a bridge (c) a dam (d) a rainbow
15. 15.📋 Constraint: the tower must be no taller than 100 cm. The team’s tower is 102 cm tall. Is it within the constraint? (a) Yes (b) No
16. 16.Which of these is in tension (pulled)? (a) a bridge pier (b) a stretched rubber band (c) a tall bridge tower (d) a stone in an arch
17. 17.True or false: a nutcracker is a class 2 lever (load in the middle). (a) True (b) False
18. 18.🔍 Which is the odd one out? (a) using a heavy roof (b) raising heavy tanks high (c) adding steel to concrete (d) making brittle joints
19. 19.True or false: a bridge pier is in compression (pushed). (a) True (b) False
20. 20.🔄 Which design-process step is it to try it out? (a) Imagine (b) Test (c) Plan (d) Create
21. 21.⚖️ A lever bar balances. The load is ? N at 30 cm from the fulcrum. The effort is 180 N at 30 cm from the fulcrum on the other side. What is the missing force in newtons?
22. 22.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they are cheap (c) they bend, not break (d) they look nice
23. 23.🏋️ A force of 330 N pushes a cart 2 m along the floor. How much work is done, in joules?
24. 24.🔍 Which is the odd one out? (a) use the same load (b) change lots at once (c) guess, do not measure (d) test it only once
25. 25.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
26. 26.🦺 In the workshop, is it safe to run while holding tools? (a) safe (b) not safe
27. 27.🧪 Why repeat a test three times? (a) the first is wrong (b) it looks busy (c) to use more paper (d) to get reliable results
28. 28.📐 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?
29. 29.🪢 Which material is good in tension but useless in compression? (a) a rope (b) a concrete block (c) a brick (d) a stone
30. 30.🦺 Who should use hot glue guns and power tools in a kids’ project? (a) the youngest child (b) a stranger (c) an adult (d) any child alone
31. 31.True or false: to measure its performance is the Plan step. (a) True (b) False
32. 32.⚙️ A wedge is … (a) a wheel on a rod (b) a rope on a wheel (c) a bar on a pivot (d) two ramps back to back
33. 33.🛠️ Is a banyan tree made by engineers or found in nature? (a) found in nature (b) made by engineers
34. 34.🛞 Is friction helpful or a problem here: shoe soles wearing out? (a) helpful (b) a problem
35. 35.True or false: to repeat each test is poor testing. (a) False (b) True
36. 36.💪 Which force is at work: rubbing hands warms them? (a) friction (b) gravity (c) magnetic force (d) muscular force
37. 37.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
38. 38.Which job is a screwdriver for? (a) check a shelf is level (b) drive in a nail (c) cut a wooden plank (d) turn a screw
39. 39.Which of these is in tension (pulled)? (a) a stone in an arch (b) a brick at a wall base (c) a swing chain (d) a temple column
40. 40.🏋️ A machine lifts a load of 390 N when you push with 130 N. What is its mechanical advantage (MA)?

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