Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 491 · 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 needs a transparent material? (a) a cooking pot handle (b) the core of a wire (c) a water tank (d) a car windscreen
2. 2.🏚️ Three solid model towers are made of the same material. Tower A is 50 cm tall on a 10 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 240 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
3. 3.Which of these uses triangles? (a) a roof truss (b) a lintel over a door (c) a round palace roof (d) a plank over a drain
4. 4.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 10 cm wide base, tower B is 180 cm tall on a 30 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
5. 5.⚖️ Along a straight bar, measured from the left end, the effort is at 30 cm, the fulcrum at 10 cm and the load at 60 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
6. 6.🤝 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
7. 7.🛞 Which surface gives the MOST friction to a sliding block? (a) ice (b) polished marble (c) glass (d) sandpaper
8. 8.Which of these is made by engineers? (a) a satellite (b) a coral reef (c) a seashell (d) a banyan tree
9. 9.True or false: a biomedical engineer plans a power grid. (a) True (b) False
10. 10.🧑‍🔧 Which kind of engineer builds hospital scanners? (a) biomedical (b) civil (c) electrical (d) mechanical
11. 11.🌉 Which bridge type: “tall towers hold cables”? (a) beam bridge (b) suspension bridge (c) arch bridge
12. 12.🏋️ A force of 250 N pushes a cart 5 m along the floor. How much work is done, in joules?
13. 13.⚖️ Along a straight bar, measured from the left end, the effort is at 30 cm, the fulcrum at 40 cm and the load at 60 cm. Which class of lever is it? (a) class 2 (b) class 3 (c) class 1
14. 14.Which of these is a suspension bridge? (a) a flat deck on piers (b) pushes out on its ends (c) the simplest bridge (d) the longest spans of all
15. 15.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
16. 16.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) adding steel to concrete (c) raising heavy tanks high (d) using a light roof
17. 17.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
18. 18.Which need does a fridge meet? (a) carry many people far (b) talk to someone far away (c) keep food fresh longer (d) reach a top floor fast
19. 19.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 2 N, a wooden plank 4 N, a carpet 7 N, sandpaper 8 N. How many newtons more were needed on sandpaper than on ice?
20. 20.⚙️ Which simple machine is a well-bucket rope wheel? (a) pulley (b) lever (c) inclined plane (d) wedge
21. 21.True or false: a wood screw is a wedge. (a) True (b) False
22. 22.🦺 In the workshop, is it safe to wear safety goggles? (a) safe (b) not safe
23. 23.📐 A model car is drawn so that 1 cm stands for 10 cm. The car is 3 cm long in the drawing. How long is the real car, in centimetres?
24. 24.True or false: to turn a screw, use sandpaper. (a) True (b) False
25. 25.🏋️ A force of 500 N pushes a cart 10 m along the floor. How much work is done, in joules?
26. 26.True or false: “float for 1 minute” is a criterion (a goal). (a) False (b) True
27. 27.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
28. 28.🤝 Is it good or poor teamwork to share the work fairly? (a) good teamwork (b) poor teamwork
29. 29.📋 Your team’s budget is ₹54. You must buy one roll of tape for ₹20. Straws cost ₹2 each. What is the greatest number of straws you can buy?
30. 30.True or false: to check it against goals is the Test step. (a) False (b) True
31. 31.True or false: “use at most 20 straws” is a criterion (a goal). (a) False (b) True
32. 32.🛞 More or less friction: a tyre with deep treads? (a) less friction (b) more friction
33. 33.Which of these is a wheel and axle? (a) a water tap handle (b) a bottle opener (c) the tip of a nail (d) a nutcracker
34. 34.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a fridge (c) a telescope (d) a microscope
35. 35.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
36. 36.💪 Which force is at work: shoes grip the floor? (a) friction (b) muscular force (c) magnetic force (d) gravity
37. 37.🏋️ A machine lifts a load of 760 N when you push with 190 N. What is its mechanical advantage (MA)?
38. 38.🔺 A flat frame has 6 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
39. 39.💪 In a tug of war, one team pulls left with 15 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
40. 40.🦺 What protects your eyes when sawing or drilling? (a) nothing (b) sunglasses (c) safety goggles (d) a cap

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