Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 1 · 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.⚙️ A wedge is … (a) two ramps back to back (b) a rope on a wheel (c) a wheel on a rod (d) a bar on a pivot
2. 2.Which of these happens in the Improve step? (a) make it better, retest (b) brainstorm many ideas (c) measure its performance (d) follow the plan to build
3. 3.🏋️ Can a simple machine reduce the work done? (a) yes, always (b) yes, by half (c) no, work stays the same (d) only on Mondays
4. 4.🛞 How can we reduce friction in a machine? (a) press parts harder (b) oil the moving parts (c) add sand (d) make parts rough
5. 5.♻️ Reduce, reuse or recycle: carry a cloth bag? (a) reduce (b) reuse (c) recycle
6. 6.Which of these is an inclined plane? (a) a bottle opener (b) a jar lid (c) a seesaw (d) a wheelchair ramp
7. 7.🔢 To follow the engineering design process, which comes first: “Imagine” or “Improve”? (a) Improve (b) Imagine
8. 8.⚖️ On a seesaw, a heavier child should sit … (a) closer to the pivot (b) anywhere (c) on the pivot (d) farther from the pivot
9. 9.True or false: a pair of kitchen tongs is a class 3 lever (effort in the middle). (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) wear safety goggles (b) cut away from your body (c) clamp wood before sawing (d) touch a hot glue tip
11. 11.True or false: an aerospace engineer designs aeroplane wings. (a) False (b) True
12. 12.🔧 Which tool would you use to make a hole in wood? (a) a saw (b) a hand drill (c) a spanner (d) a screwdriver
13. 13.🏋️ In which unit is work measured? (a) watt hour (b) newton (N) (c) joule (J) (d) metre (m)
14. 14.🪝 What does a single fixed pulley change? (a) gravity (b) the size of the load (c) the direction of pull (d) the colour of rope
15. 15.🔢 To follow the engineering design process, which is the FIRST step? (a) Create (b) Ask (c) Imagine (d) Test
16. 16.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they look nice (c) they are cheap (d) they stop shaking
17. 17.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 40 cm wide base, tower B is 10 cm tall on a 10 cm base and tower C is 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
18. 18.🪢 A beam rests on two supports and is pressed down in the middle. Its bottom edge is … (a) stretched (tension) (b) twisted (c) not affected (d) squeezed (compression)
19. 19.⚖️ Which class of lever is a beam balance? (a) class 3 (b) class 2 (c) class 1
20. 20.💪 Two children push a box to the right, one with 45 N and the other with 85 N. What is the net (total) force on the box, in newtons?
21. 21.🔧 Which tool would you use to grip and bend wire? (a) a hammer (b) a spanner (c) pliers (d) a screwdriver
22. 22.⚖️ Along a straight bar, measured from the left end, the effort is at 30 cm, the fulcrum at 40 cm and the load at 50 cm. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
23. 23.Which of these needs a transparent material? (a) the core of a wire (b) a cooking pot handle (c) a window pane (d) an umbrella cover
24. 24.🔧 Which tool would you use to measure an angle? (a) a saw (b) a hand drill (c) a protractor (d) a spanner
25. 25.🔍 Which is the odd one out? (a) hold up 500 g (b) roll at least 2 metres (c) float for 1 minute (d) use at most 20 straws
26. 26.🪝 Fixed or movable pulley: which one only changes direction? (a) a movable pulley (b) a fixed pulley
27. 27.🔢 To build and test a straw bridge, which is the FIRST step? (a) read the challenge rules (b) strengthen the weak part (c) choose and draw one (d) build it with straws
28. 28.⚙️ Which simple machine is a window blind cord? (a) screw (b) inclined plane (c) pulley (d) wheel and axle
29. 29.Which of these is a suspension bridge? (a) tall towers hold cables (b) a flat deck on piers (c) good for short gaps (d) stones squeezed together
30. 30.♻️ Which energy source will never run out? (a) diesel (b) sunlight (c) petrol (d) coal
31. 31.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) keeping a simple shape (c) adding steel to concrete (d) using a heavy roof
32. 32.🤝 A team plans for 55 minutes, builds for 60 minutes and then tests for 5 minutes, one after another. How many minutes is that in all?
33. 33.🪢 A sign weighing 420 N hangs from 6 identical vertical ropes that share the load equally. What is the tension in each rope, in newtons?
34. 34.Which of these is caused by magnetic force? (a) shoes grip the floor (b) an apple falls down (c) a fridge magnet sticks (d) rain falls to the ground
35. 35.🏋️ A machine lifts a load of 180 N when you push with 30 N. What is its mechanical advantage (MA)?
36. 36.⚖️ Going along a lever from one end to the other, the order is: fulcrum, load, effort. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
37. 37.🌉 In a stone arch bridge, the stones are in … (a) tension (b) compression (c) friction (d) no force
38. 38.Which of these happens in the Imagine step? (a) make it better, retest (b) make a prototype (c) ask who will use it (d) think of wild ideas
39. 39.⚙️ Which simple machine is a crowbar? (a) wedge (b) pulley (c) screw (d) lever
40. 40.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) copper (d) glass

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