Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 635 · 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 of these is a wheel and axle? (a) a wood screw (b) a crane hook block (c) a steering wheel (d) a truck loading ramp
2. 2.True or false: a pillar under a roof is in tension (pulled). (a) True (b) False
3. 3.🪢 Tension is a force that … (a) turns things (b) pulls or stretches (c) heats things (d) pushes or squeezes
4. 4.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they bend, not break (c) they stop shaking (d) they are cheap
5. 5.🪝 A bucket weighing 310 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
6. 6.🏋️ In which unit is work measured? (a) newton (N) (b) joule (J) (c) metre (m) (d) watt hour
7. 7.🔺 Which shape keeps its shape best when its corners are pinned? (a) rectangle (b) square (c) hexagon (d) triangle
8. 8.True or false: a fridge helps people make water safe to drink. (a) True (b) False
9. 9.🛞 Is friction helpful or a problem here: gripping a cricket bat? (a) helpful (b) a problem
10. 10.⚖️ A seesaw balances. Meena (420 N) sits 4 m from the pivot on one side; Kabir (560 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
11. 11.🪝 A load of 680 N hangs from a pulley system in which 4 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
12. 12.Which job does a biomedical engineer do? (a) designs a paint factory (b) designs hearing aids (c) keeps data safe online (d) designs bicycle gears
13. 13.🏋️ Pushing a crate 4 m took 1280 J of work. What force was used, in newtons?
14. 14.🦺 In the workshop, is it safe to play near a moving drill? (a) safe (b) not safe
15. 15.True or false: a mechanical engineer builds rockets. (a) False (b) True
16. 16.🧪 The first prototype held 300 g. After the team improved it, the new prototype held 460 g. How many more grams did it hold?
17. 17.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
18. 18.🌉 Which bridge type: “good for short gaps”? (a) beam bridge (b) arch bridge (c) suspension bridge
19. 19.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) be under 30 cm tall (b) keep ice for 1 hour (c) use at most 20 straws (d) use only paper and tape
21. 21.📋 Your team’s budget is ₹29. You must buy one roll of tape for ₹20. Straws cost ₹1 each. What is the greatest number of straws you can buy?
22. 22.📐 On a plan, 1 cm stands for 10 m. A wall is 10 cm long on the plan. How long is the real wall, in metres?
23. 23.🛠️ What does an engineer do before building anything? (a) builds at once (b) understands the problem (c) buys every material (d) paints the model
24. 24.True or false: to drive in a nail, use a spanner. (a) True (b) False
25. 25.True or false: a fixed pulley only changes direction. (a) True (b) False
26. 26.🪢 Tension or compression: a swing chain? (a) tension (b) compression
27. 27.True or false: a tall bridge tower is in compression (pushed). (a) True (b) False
28. 28.True or false: to let adults use hot glue is not safe. (a) True (b) False
29. 29.🏋️ A force of 460 N pushes a cart 6 m along the floor. How much work is done, in joules?
30. 30.Which of these is a beam bridge? (a) deck hangs from cables (b) tall towers hold cables (c) pushes out on its ends (d) the simplest bridge
31. 31.📋 Criterion: the model bridge must hold at least 900 g. In the test it held 750 g. Does it meet the criterion? (a) Yes (b) No
32. 32.Which of these is a wedge? (a) a nutcracker (b) a flagpole rope wheel (c) a knife edge (d) a jar lid
33. 33.🛠️ People need to keep food fresh longer. Which invention helps? (a) a tunnel (b) a dam (c) a fridge (d) a microscope
34. 34.True or false: to run while holding tools is not safe. (a) False (b) True
35. 35.True or false: “stones squeezed together” is a suspension bridge. (a) True (b) False
36. 36.True or false: a bottle opener is a class 2 lever (load in the middle). (a) False (b) True
37. 37.📋 For a model bridge challenge, is “float for 1 minute” a constraint or a criterion? (a) a criterion (b) a constraint
38. 38.🔍 Which is the odd one out? (a) repeat each test (b) record every result (c) change lots at once (d) use the same load
39. 39.♻️ A project report has 58 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
40. 40.🔄 What is the FIRST step of the engineering design process? (a) Ask (b) Improve (c) Test (d) Create

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