Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 902 · 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.🪝 Fixed or movable pulley: which one hangs on the rope loop? (a) a fixed pulley (b) a movable pulley
2. 2.True or false: a bottle opener is a lever. (a) True (b) False
3. 3.True or false: a yoga mat needs a flexible material. (a) False (b) True
4. 4.♻️ Reduce, reuse or recycle: melt glass into new jars? (a) reuse (b) reduce (c) recycle
5. 5.Which of these is a lever? (a) a nut and bolt (b) a crowbar (c) a wheelchair ramp (d) a water tap handle
6. 6.Which of these is reduce (use less)? (a) turn plastic into tiles (b) melt glass into new jars (c) refill a water bottle (d) print on both sides
7. 7.🪝 A well winch has a handle (wheel) of radius 4 cm turning an axle of radius 2 cm. What is its mechanical advantage (MA)?
8. 8.♻️ Is biogas from waste a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
9. 9.True or false: a pair of pliers is a class 1 lever (fulcrum in the middle). (a) True (b) False
10. 10.True or false: a tug of war is a push. (a) True (b) False
11. 11.True or false: to change lots at once is good testing. (a) True (b) False
12. 12.🏋️ A smooth ramp is 9 m long and rises 3 m. What effort pushes a 1800 N box up it, in newtons? (ideal ramp, no friction)
13. 13.📋 For a model bridge challenge, is “fit on a school desk” a constraint or a criterion? (a) a criterion (b) a constraint
14. 14.♻️ Reduce, reuse or recycle: plant in old tyres? (a) reuse (b) reduce (c) recycle
15. 15.True or false: natural gas is a renewable energy source. (a) False (b) True
16. 16.🧪 A paper bridge was tested three times. It held 230 g, 90 g and 220 g. What is the mean (average) load it held, in grams?
17. 17.Which of these is caused by magnetic force? (a) brakes stop a bicycle (b) rain falls to the ground (c) a rolling ball slows (d) a compass needle turns
18. 18.🔍 Which is the odd one out? (a) a tow rope on a car (b) a hanging lamp chain (c) a swing chain (d) a temple column
19. 19.🪝 A pulley system has 1 rope section holding up the load. To lift the load by 10 m, how many metres of rope must you pull?
20. 20.🦺 Who should use hot glue guns and power tools in a kids’ project? (a) any child alone (b) the youngest child (c) an adult (d) a stranger
21. 21.🪝 A pulley system lifts a 140 N load with an effort of 70 N. What is its mechanical advantage (MA)?
22. 22.🪝 A winch has a wheel of radius 4 cm and an axle of radius 2 cm. What effort on the wheel lifts a 320 N bucket on the axle, in newtons? (ideal)
23. 23.🦺 In the workshop, is it safe to tie back long hair? (a) not safe (b) safe
24. 24.⚖️ Which class of lever is a pair of pliers? (a) class 2 (b) class 1 (c) class 3
25. 25.🔢 To follow the engineering design process, what comes right after “Create”? (a) Test (b) Imagine (c) Improve (d) Ask
26. 26.🔺 Which shape keeps its shape best when its corners are pinned? (a) triangle (b) hexagon (c) square (d) rectangle
27. 27.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) adding steel to concrete (c) adding cross bracing (d) stacking loose bricks
28. 28.🤝 A teammate’s idea seems odd. What should you do first? (a) walk away (b) laugh at it (c) listen and ask why (d) ignore it
29. 29.True or false: to skip writing results is poor testing. (a) False (b) True
30. 30.True or false: a crane lifting cable is in compression (pushed). (a) False (b) True
31. 31.🤝 In a design team, who keeps the team on track? (a) team leader (b) tester (c) recorder (d) builder
32. 32.Which job is a tape measure for? (a) grip and bend wire (b) measure a long length (c) measure an angle (d) tighten a nut
33. 33.🔍 Which is the odd one out? (a) a box pushed on carpet (b) a wet tiled floor (c) a smooth steel slide (d) a wheel on ball bearings
34. 34.True or false: a civil engineer designs car engines. (a) False (b) True
35. 35.🪢 Tension or compression: a stone in an arch? (a) tension (b) compression
36. 36.🔺 A frame shaped like a pentagon is made of straws joined by loose pins, with 0 corner-to-corner braces. Is it rigid or wobbly? (a) wobbly (b) rigid
37. 37.📐 On a plan, 1 cm stands for 5 m. A real bridge is 60 m long. How long is it on the plan, in centimetres?
38. 38.True or false: a bottle opener is a class 1 lever (fulcrum in the middle). (a) False (b) True
39. 39.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 1 N, a glass sheet 5 N, a wooden plank 9 N, a carpet 12 N. Which surface gave the most friction? (a) a glass sheet (b) a wooden plank (c) a carpet (d) ice
40. 40.True or false: to agree before changing is good teamwork. (a) False (b) True

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