Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 100 · 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.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 2 N, a glass sheet 3 N, a wooden plank 5 N, a carpet 8 N. Which surface gave the most friction? (a) ice (b) a carpet (c) a wooden plank (d) a glass sheet
2. 2.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cotton wool (d) cardboard
3. 3.True or false: to play near a moving drill is not safe. (a) False (b) True
4. 4.🌉 What holds up a long beam bridge in the middle? (a) balloons (b) piers (c) cables only (d) nothing
5. 5.Which job is pliers for? (a) measure a long length (b) grip and bend wire (c) smooth a rough edge (d) cut a wooden plank
6. 6.True or false: a railway track is found in nature. (a) False (b) True
7. 7.🏋️ A machine lifts a load of 540 N when you push with 90 N. What is its mechanical advantage (MA)?
8. 8.🏋️ A force of 140 N pushes a cart 10 m along the floor. How much work is done, in joules?
9. 9.📐 On a plan, 1 cm stands for 5 m. A wall is 4 cm long on the plan. How long is the real wall, in metres?
10. 10.🦺 Who should use hot glue guns and power tools in a kids’ project? (a) a stranger (b) the youngest child (c) an adult (d) any child alone
11. 11.Which of these needs a transparent material? (a) a switch contact (b) an umbrella cover (c) a window pane (d) a roof sheet
12. 12.📐 A beam is 940 cm long. How long is it in metres? =
13. 13.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
14. 14.🛠️ People need to go through a mountain. Which invention helps? (a) a microscope (b) a solar panel (c) a tunnel (d) a lift
15. 15.💪 A bag has a mass of 24 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
16. 16.Which job does an aerospace engineer do? (a) designs power lines (b) designs satellites (c) builds a website (d) designs a paint factory
17. 17.True or false: “fit on a school desk” is a constraint (a limit). (a) True (b) False
18. 18.🧪 A paper bridge was tested three times. It held 310 g, 210 g and 140 g. What is the mean (average) load it held, in grams?
19. 19.📋 A constraint is … (a) a kind of glue (b) a goal for success (c) a final test (d) a limit you must keep to
20. 20.True or false: a plank over a drain uses a beam. (a) False (b) True
21. 21.⚖️ A seesaw balances. Ravi (160 N) sits 2 m from the pivot on one side; Arjun (320 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
22. 22.True or false: a flagpole rope wheel is a wedge. (a) False (b) True
23. 23.🧱 Which property matters most for a car seat belt? (a) waterproof (b) heat insulator (c) flexible (d) transparent
24. 24.🏋️ A smooth ramp is 2 m long and rises 1 m. What effort pushes a 300 N box up it, in newtons? (ideal ramp, no friction)
25. 25.🔍 Which is the odd one out? (a) be under 30 cm tall (b) fit on a school desk (c) finish in 40 minutes (d) roll at least 2 metres
26. 26.Which of these uses an arch? (a) an electric pylon (b) a crane arm (c) a slab over a canal (d) a fort gateway
27. 27.True or false: a wood screw is a screw. (a) True (b) False
28. 28.⚙️ A wedge is … (a) a bar on a pivot (b) a wheel on a rod (c) two ramps back to back (d) a rope on a wheel
29. 29.True or false: a pillar under a roof is in tension (pulled). (a) True (b) False
30. 30.🔺 Which strong shape does an old stone bridge use? (a) beam (b) triangle (c) dome (d) arch
31. 31.📐 A model car is drawn so that 1 cm stands for 10 cm. The car is 9 cm long in the drawing. How long is the real car, in centimetres?
32. 32.🔢 To follow the engineering design process, what comes right after “Test”? (a) Ask (b) Improve (c) Imagine (d) Create
33. 33.🦺 What protects your eyes when sawing or drilling? (a) a cap (b) safety goggles (c) nothing (d) sunglasses
34. 34.🤝 A teammate’s idea seems odd. What should you do first? (a) walk away (b) laugh at it (c) ignore it (d) listen and ask why
35. 35.📋 Criterion: the model bridge must hold at least 400 g. In the test it held 400 g. Does it meet the criterion? (a) No (b) Yes
36. 36.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
37. 37.🏋️ Pushing a crate 5 m took 1600 J of work. What force was used, in newtons?
38. 38.🪝 A winch has a wheel of radius 32 cm and an axle of radius 4 cm. What effort on the wheel lifts a 960 N bucket on the axle, in newtons? (ideal)
39. 39.Which of these is caused by gravity? (a) pedalling a cycle (b) rain falls to the ground (c) lifting a school bag (d) brakes stop a bicycle
40. 40.Which of these is caused by muscular force? (a) lifting a school bag (b) a rolling ball slows (c) a compass needle turns (d) shoes grip the floor

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