Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 580 · 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.🦺 In the workshop, is it safe to touch a hot glue tip? (a) safe (b) not safe
2. 2.🪢 A concrete slab weighing 7500 N rests evenly on 3 identical pillars. What compression force does each pillar carry, in newtons?
3. 3.⚖️ In a class 1 lever, what is in the middle? (a) nothing (b) the effort (c) the load (d) the fulcrum
4. 4.🏋️ A 5 kg box is lifted straight up by 5 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
5. 5.⚖️ On a seesaw, a heavier child should sit … (a) closer to the pivot (b) on the pivot (c) anywhere (d) farther from the pivot
6. 6.📐 A beam is 980 cm long. How long is it in metres? =
7. 7.🔄 Which design-process step is it to define the problem? (a) Test (b) Ask (c) Improve (d) Imagine
8. 8.🔄 After testing, a design does not work well. What comes next? (a) Ask (b) Improve (c) give up (d) Imagine
9. 9.Which job does an aerospace engineer do? (a) designs artificial limbs (b) designs a metro tunnel (c) designs aeroplane wings (d) designs electric motors
10. 10.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they look nice (c) they bend, not break (d) they stop shaking
11. 11.Which job does a computer engineer do? (a) refines crude oil (b) designs power lines (c) builds a website (d) designs factory machines
12. 12.🏋️ A force of 110 N did 990 J of work. How many metres did the object move?
13. 13.True or false: to drive in a nail, use a hammer. (a) True (b) False
14. 14.🛞 How can we reduce friction in a machine? (a) oil the moving parts (b) press parts harder (c) add sand (d) make parts rough
15. 15.🔍 Which is the odd one out? (a) carry scissors closed (b) play near a moving drill (c) tie back long hair (d) put tools back after use
16. 16.True or false: a pair of kitchen tongs is a class 3 lever (effort in the middle). (a) False (b) True
17. 17.Which of these needs a heat insulator? (a) a window pane (b) a yoga mat (c) a car seat belt (d) a tea flask lining
18. 18.🔺 How do engineers stop a square frame from wobbling? (a) paint it (b) take off a side (c) add a diagonal brace (d) make it bigger
19. 19.True or false: “stones squeezed together” is an arch bridge. (a) False (b) True
20. 20.Which of these is in compression (pushed)? (a) a suspension cable (b) a bridge pier (c) a tow rope on a car (d) a tent guy rope
21. 21.⚖️ A lever balances when … (a) the bar is short (b) both weights are equal (c) turning effects match (d) the fulcrum moves
22. 22.Which of these is a wheel and axle? (a) a knife edge (b) a nut and bolt (c) a round doorknob (d) a bottle opener
23. 23.📐 A beam is 570 cm long. How long is it in metres? =
24. 24.⚖️ A lever bar balances. The load is ? N at 20 cm from the fulcrum. The effort is 60 N at 70 cm from the fulcrum on the other side. What is the missing force in newtons?
25. 25.🔄 Which design-process step is it to draw a labelled diagram? (a) Plan (b) Improve (c) Test (d) Create
26. 26.♻️ A project report has 26 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
27. 27.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a carpet 9 N, ice 1 N, a glass sheet 3 N, a wooden plank 5 N. Which surface gave the most friction? (a) ice (b) a carpet (c) a wooden plank (d) a glass sheet
28. 28.True or false: a biomedical engineer runs a fertiliser plant. (a) True (b) False
29. 29.⚖️ A seesaw balances. Asha (600 N) sits 2 m from the pivot on one side; Zoya (? N) sits 3 m from the pivot on the other side. What is the missing weight in newtons?
30. 30.⚖️ A seesaw balances. Meena (150 N) sits 4 m from the pivot on one side; Kabir (? N) sits 1 m from the pivot on the other side. What is the missing weight in newtons?
31. 31.Which of these is an inclined plane? (a) a nutcracker (b) a crowbar (c) a truck loading ramp (d) a chisel
32. 32.True or false: “carry 10 coins” is a criterion (a goal). (a) True (b) False
33. 33.⚖️ A lever bar balances. The load is ? N at 50 cm from the fulcrum. The effort is 100 N at 20 cm from the fulcrum on the other side. What is the missing force in newtons?
34. 34.True or false: a pair of scissors is a class 3 lever (effort in the middle). (a) True (b) False
35. 35.🪝 A bucket weighing 400 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
36. 36.💪 Which force is at work: a thrown ball comes down? (a) magnetic force (b) friction (c) muscular force (d) gravity
37. 37.🤝 In a design team, who writes down results? (a) builder (b) materials manager (c) recorder (d) tester
38. 38.Which of these makes a building less safe in earthquakes? (a) stacking loose bricks (b) keeping a simple shape (c) using a light roof (d) adding steel to concrete
39. 39.⚖️ Turning effect = force × … (a) time taken (b) distance from fulcrum (c) mass of fulcrum (d) colour of bar
40. 40.🛠️ A scientist asks “why does it happen?”. An engineer mostly asks … (a) what is for lunch? (b) who won the match? (c) why is the sky blue? (d) how can we build it?

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