Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 29 · 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.♻️ Reduce, reuse or recycle: print on both sides? (a) reuse (b) recycle (c) reduce
2. 2.Which job is sandpaper for? (a) grip and bend wire (b) make a hole in wood (c) turn a screw (d) smooth a rough edge
3. 3.⚖️ Along a straight bar, measured from the left end, the effort is at 20 cm, the fulcrum at 0 cm and the load at 10 cm. Which class of lever is it? (a) class 2 (b) class 3 (c) class 1
4. 4.♻️ Reduce, reuse or recycle: give old books away? (a) reduce (b) reuse (c) recycle
5. 5.🧪 Why do engineers make prototypes? (a) to avoid testing (b) to sell them at once (c) to test ideas cheaply (d) to decorate a room
6. 6.⚖️ A lever bar balances. The load is 120 N at ? cm from the fulcrum. The effort is 80 N at 60 cm from the fulcrum on the other side. What is the missing distance in centimetres?
7. 7.Which job does a mechanical engineer do? (a) designs power lines (b) designs a paint factory (c) plans a power grid (d) designs bicycle gears
8. 8.🔢 To build and test a straw bridge, which is the FIRST step? (a) build it with straws (b) read the challenge rules (c) choose and draw one (d) load it with coins
9. 9.True or false: a pair of tweezers is a class 3 lever (effort in the middle). (a) True (b) False
10. 10.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a carpet 11 N, ice 2 N, a glass sheet 6 N, a wooden plank 8 N. Which surface gave the most friction? (a) a wooden plank (b) a carpet (c) a glass sheet (d) ice
11. 11.True or false: “float for 1 minute” is a constraint (a limit). (a) False (b) True
12. 12.🔧 Which tool would you use to cut a wooden plank? (a) a spanner (b) pliers (c) a saw (d) a screwdriver
13. 13.⚖️ Which class of lever is a fishing rod? (a) class 2 (b) class 3 (c) class 1
14. 14.🔺 Which strong shape does a truss bridge side use? (a) arch (b) beam (c) triangle (d) dome
15. 15.🛞 More or less friction: a grippy rubber sole? (a) more friction (b) less friction
16. 16.🪝 A pulley system has 4 rope sections holding up the load. To lift the load by 2 m, how many metres of rope must you pull?
17. 17.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) muscular force (c) friction (d) gravity
18. 18.🧪 A paper bridge was tested three times. It held 300 g, 170 g and 190 g. What is the mean (average) load it held, in grams?
19. 19.🧪 What is a prototype? (a) the final product (b) a sales poster (c) a broken part (d) an early test model
20. 20.🌉 In a suspension bridge, the main cables are in … (a) no force (b) tension (c) compression (d) friction
21. 21.🏋️ Work is done when a force moves something … (a) without moving it (b) only upwards (c) very slowly (d) through a distance
22. 22.True or false: a fixed pulley hangs on the rope loop. (a) True (b) False
23. 23.📐 A beam is 150 cm long. How long is it in metres? =
24. 24.🛠️ Is a railway track made by engineers or found in nature? (a) found in nature (b) made by engineers
25. 25.📋 A constraint is … (a) a limit you must keep to (b) a kind of glue (c) a final test (d) a goal for success
26. 26.🪝 A bucket weighing 170 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
27. 27.True or false: “spend at most ₹100” is a criterion (a goal). (a) False (b) True
28. 28.🔧 Which tool would you use to make a hole in wood? (a) a protractor (b) pliers (c) a tape measure (d) a hand drill
29. 29.⚖️ Which class of lever is a lemon squeezer? (a) class 1 (b) class 3 (c) class 2
30. 30.True or false: a movable pulley rises with the load. (a) False (b) True
31. 31.⚙️ Which simple machine is the tip of a nail? (a) pulley (b) wheel and axle (c) inclined plane (d) wedge
32. 32.🔺 Which strong shape does a roof truss use? (a) arch (b) beam (c) dome (d) triangle
33. 33.🔍 Which is the odd one out? (a) carry 10 coins (b) float for 1 minute (c) be under 30 cm tall (d) stand in a fan breeze
34. 34.🔍 Which is the odd one out? (a) oil on a squeaky hinge (b) a rough doormat (c) chalk on a gym bar (d) sand on a slippery path
35. 35.📐 How many metres are in 1 kilometre? (a) 10 (b) 10000 (c) 1000 (d) 100
36. 36.🏋️ A force of 270 N did 1890 J of work. How many metres did the object move?
37. 37.⚖️ Which class of lever is a bottle opener? (a) class 2 (b) class 3 (c) class 1
38. 38.🦺 What protects your eyes when sawing or drilling? (a) sunglasses (b) nothing (c) a cap (d) safety goggles
39. 39.Which of these uses triangles? (a) a lintel over a door (b) a round palace roof (c) a shelf on two brackets (d) a bicycle frame
40. 40.🔍 Which is the odd one out? (a) spend at most ₹100 (b) use only paper and tape (c) use at most 20 straws (d) hold up 500 g

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