Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 620 · 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 job is a tape measure for? (a) measure a long length (b) measure an angle (c) drive in a nail (d) cut a wooden plank
2. 2.📐 A model car is drawn so that 1 cm stands for 10 cm. The car is 4 cm long in the drawing. How long is the real car, in centimetres?
3. 3.🛞 More or less friction: powder on a carrom board? (a) less friction (b) more friction
4. 4.🪝 A winch has a wheel of radius 24 cm and an axle of radius 4 cm. What effort on the wheel lifts an 840 N bucket on the axle, in newtons? (ideal)
5. 5.🌉 A beam bridge 125 m long is split by piers into 5 equal spans. How long is each span, in metres?
6. 6.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
7. 7.🛞 Is friction helpful or a problem here: gripping a cricket bat? (a) a problem (b) helpful
8. 8.Which of these uses triangles? (a) an old stone bridge (b) a shelf on two brackets (c) an electric pylon (d) an igloo
9. 9.📐 How many millimetres are in 1 centimetre? (a) 1000 (b) 5 (c) 100 (d) 10
10. 10.📋 A constraint is … (a) a kind of glue (b) a limit you must keep to (c) a goal for success (d) a final test
11. 11.🦺 In the workshop, is it safe to let adults use hot glue? (a) safe (b) not safe
12. 12.⚖️ A lever bar balances. The load is 700 N at 10 cm from the fulcrum. The effort is ? N at 100 cm from the fulcrum on the other side. What is the missing force in newtons?
13. 13.🪝 A pulley system lifts a 640 N load with an effort of 160 N. What is its mechanical advantage (MA)?
14. 14.True or false: a movable pulley stays in one place. (a) True (b) False
15. 15.True or false: to own up to a mistake is poor teamwork. (a) False (b) True
16. 16.🤝 In a design team, who shares out the jobs? (a) materials manager (b) recorder (c) builder (d) team leader
17. 17.🔄 Which design-process step is it to dream up possible fixes? (a) Ask (b) Improve (c) Imagine (d) Test
18. 18.🏋️ A smooth ramp is 6 m long and rises 1 m. What effort pushes a 2700 N box up it, in newtons? (ideal ramp, no friction)
19. 19.🔄 Which design-process step is it to pick the build order? (a) Test (b) Imagine (c) Plan (d) Create
20. 20.📋 A design meets every criterion but costs more than the budget. Is it acceptable? (a) yes, always (b) only if it is red (c) yes, it works (d) no, it breaks a limit
21. 21.🤝 Is it good or poor teamwork to help a stuck teammate? (a) poor teamwork (b) good teamwork
22. 22.🪝 Fixed or movable pulley: which one needs effort = load? (a) a fixed pulley (b) a movable pulley
23. 23.⚖️ A lever bar balances. The load is 140 N at 10 cm from the fulcrum. The effort is 70 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
24. 24.🧑‍🔧 Which branch of engineering designs machines with moving parts? (a) biomedical (b) mechanical (c) chemical (d) civil
25. 25.⚙️ A wedge is … (a) a wheel on a rod (b) two ramps back to back (c) a bar on a pivot (d) a rope on a wheel
26. 26.🏋️ Work is done when a force moves something … (a) only upwards (b) without moving it (c) through a distance (d) very slowly
27. 27.🪢 A beam rests on two supports and is pressed down in the middle. Its bottom edge is … (a) squeezed (compression) (b) stretched (tension) (c) twisted (d) not affected
28. 28.🦺 How should you carry scissors? (a) points up, open (b) while running (c) by the blades (d) points down, closed
29. 29.🔧 Which tool would you use to tighten a nut? (a) a saw (b) a spanner (c) a spirit level (d) pliers
30. 30.⚖️ A seesaw balances. Asha (100 N) sits 2 m from the pivot on one side; Meena (? N) sits 1 m from the pivot on the other side. What is the missing weight in newtons?
31. 31.💪 A box weighs 400 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
32. 32.⚖️ In a class 3 lever, what is in the middle? (a) the load (b) the pulley (c) the effort (d) the fulcrum
33. 33.True or false: a tent guy rope is in compression (pushed). (a) True (b) False
34. 34.🧑‍🔧 Which kind of engineer designs a metro tunnel? (a) civil (b) mechanical (c) chemical (d) electrical
35. 35.🧑‍🔧 Which kind of engineer designs aeroplane wings? (a) civil (b) electrical (c) aerospace (d) chemical
36. 36.📐 Why do engineers use scale drawings? (a) to save ink only (b) to hide sizes (c) big things fit on paper (d) to make them pretty
37. 37.📋 Constraint: the tower must be no taller than 70 cm. The team’s tower is 66 cm tall. Is it within the constraint? (a) No (b) Yes
38. 38.🏚️ Why is a wide base safer? (a) it is taller (b) it is lighter (c) it is harder to tip over (d) it is colourful
39. 39.🔍 Which is the odd one out? (a) a wet tiled floor (b) a wheel on ball bearings (c) powder on a carrom board (d) a grippy rubber sole
40. 40.Which of these is caused by magnetic force? (a) rain falls to the ground (b) a compass needle turns (c) a thrown ball comes down (d) a river flows downhill

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