Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 705 · 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.📐 Why do engineers use scale drawings? (a) to save ink only (b) big things fit on paper (c) to make them pretty (d) to hide sizes
2. 2.🔺 Which shape keeps its shape best when its corners are pinned? (a) hexagon (b) triangle (c) rectangle (d) square
3. 3.Which job is a tape measure for? (a) measure a long length (b) cut a wooden plank (c) measure an angle (d) drive in a nail
4. 4.⚖️ Along a straight bar, measured from the left end, the effort is at 0 cm, the fulcrum at 20 cm and the load at 30 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
5. 5.📐 On a plan, 1 cm stands for 5 m. A real bridge is 65 m long. How long is it on the plan, in centimetres?
6. 6.True or false: a magnifier lens needs a waterproof material. (a) False (b) True
7. 7.Which of these is an arch bridge? (a) a rope bridge in hills (b) the simplest bridge (c) pushes out on its ends (d) the longest spans of all
8. 8.True or false: a movable pulley hangs on the rope loop. (a) True (b) False
9. 9.Which of these is made by engineers? (a) a lift (b) a banyan tree (c) a coral reef (d) a seashell
10. 10.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
11. 11.🪝 Fixed or movable pulley: which one makes you pull 2× rope? (a) a movable pulley (b) a fixed pulley
12. 12.📋 For a model bridge challenge, is “float for 1 minute” a constraint or a criterion? (a) a criterion (b) a constraint
13. 13.⚖️ Turning effect = force × … (a) mass of fulcrum (b) colour of bar (c) time taken (d) distance from fulcrum
14. 14.Which of these is an inclined plane? (a) a knife edge (b) the tip of a nail (c) a playground slide (d) a nut and bolt
15. 15.🤝 Is it good or poor teamwork to talk over others? (a) poor teamwork (b) good teamwork
16. 16.🌉 Which bridge type: “a curve under the deck”? (a) arch bridge (b) beam bridge (c) suspension bridge
17. 17.🔺 Which strong shape does a lintel over a door use? (a) triangle (b) arch (c) dome (d) beam
18. 18.🔺 One side of a straw bridge is a row of 5 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
19. 19.🏋️ A force of 270 N pushes a cart 5 m along the floor. How much work is done, in joules?
20. 20.True or false: a seesaw is a class 1 lever (fulcrum in the middle). (a) False (b) True
21. 21.🌉 A beam bridge 225 m long is split by piers into 5 equal spans. How long is each span, in metres?
22. 22.🔍 Which is the odd one out? (a) a claw hammer on a nail (b) a jar lid (c) a nutcracker (d) a crowbar
23. 23.🔺 A flat frame has 7 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
24. 24.⚖️ In a class 3 lever, what is in the middle? (a) the effort (b) the fulcrum (c) the load (d) the pulley
25. 25.Which of these is a wedge? (a) a bottle opener (b) a well winch handle (c) a flagpole rope wheel (d) a knife edge
26. 26.Which job does a biomedical engineer do? (a) lays out a highway (b) plans a space mission (c) designs bicycle gears (d) designs hearing aids
27. 27.Which job does a mechanical engineer do? (a) designs bicycle gears (b) designs satellites (c) plans a power grid (d) designs artificial limbs
28. 28.True or false: a computer engineer keeps data safe online. (a) False (b) True
29. 29.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
30. 30.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
31. 31.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) using a heavy roof (c) leaving out steel bars (d) fitting rubber base pads
32. 32.🧪 Three prototype bridges were tested with the same method. Design A held 170 g, design B held 120 g and design C held 220 g. Which design was the weakest? (a) design B (b) design C (c) design A
33. 33.Which of these is recycle (make new things)? (a) fix a dripping tap (b) turn plastic into tiles (c) use a jar as a pen stand (d) print on both sides
34. 34.📐 A beam is 360 cm long. How long is it in metres? =
35. 35.Which of these is a suspension bridge? (a) a flat deck on piers (b) a curve under the deck (c) the longest spans of all (d) stones squeezed together
36. 36.🔄 Which design-process step is it to redesign after testing? (a) Improve (b) Test (c) Create (d) Ask
37. 37.🏋️ A machine lifts a load of 840 N when you push with 140 N. What is its mechanical advantage (MA)?
38. 38.♻️ Which energy source will never run out? (a) coal (b) petrol (c) sunlight (d) diesel
39. 39.⚙️ Which simple machine is a crane hook block? (a) wheel and axle (b) inclined plane (c) screw (d) pulley
40. 40.⚖️ A seesaw balances. Asha (600 N) sits 1 m from the pivot on one side; Ravi (? N) sits 4 m from the pivot on the other side. What is the missing weight in newtons?

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