Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 285 · 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.⚖️ In a class 1 lever, what is in the middle? (a) the fulcrum (b) the effort (c) nothing (d) the load
2. 2.True or false: plucking a mango is a pull. (a) True (b) False
3. 3.🪝 Fixed or movable pulley: which one halves the effort? (a) a fixed pulley (b) a movable pulley
4. 4.📐 On a plan, 1 cm stands for 5 m. A real bridge is 50 m long. How long is it on the plan, in centimetres?
5. 5.🔍 Which is the odd one out? (a) an axe blade (b) a chisel (c) a door stopper (d) a crowbar
6. 6.True or false: a switch contact needs a waterproof material. (a) True (b) False
7. 7.🤝 In a design team, who tracks what is used up? (a) team leader (b) materials manager (c) recorder (d) tester
8. 8.🧪 A paper bridge was tested three times. It held 240 g, 180 g and 300 g. What is the mean (average) load it held, in grams?
9. 9.📐 On a plan, 1 cm stands for 5 m. A wall is 20 cm long on the plan. How long is the real wall, in metres?
10. 10.⚖️ On a seesaw, a heavier child should sit … (a) on the pivot (b) closer to the pivot (c) anywhere (d) farther from the pivot
11. 11.True or false: hitting a cricket ball is a pull. (a) True (b) False
12. 12.⚙️ Which simple machine is a bottle opener? (a) pulley (b) wheel and axle (c) screw (d) lever
13. 13.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) raising heavy tanks high (c) stacking loose bricks (d) adding steel to concrete
14. 14.🪝 More rope sections holding a load means … (a) less effort needed (b) the load floats (c) no change (d) more effort needed
15. 15.🏋️ A machine lifts a load of 180 N when you push with 90 N. What is its mechanical advantage (MA)?
16. 16.🔍 Which is the odd one out? (a) stacking loose bricks (b) using flexible joints (c) using a heavy roof (d) raising heavy tanks high
17. 17.🤝 In a design team, who runs the tests? (a) recorder (b) builder (c) tester (d) team leader
18. 18.⚙️ Which simple machine is an axe blade? (a) lever (b) wedge (c) wheel and axle (d) screw
19. 19.True or false: “deck hangs from cables” is a beam bridge. (a) False (b) True
20. 20.True or false: “pushes out on its ends” is an arch bridge. (a) True (b) False
21. 21.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
22. 22.🪢 Tension or compression: a pillar under a roof? (a) tension (b) compression
23. 23.🧑‍🔧 Which kind of engineer builds rockets? (a) computer (b) aerospace (c) mechanical (d) civil
24. 24.🛠️ What does an engineer do before building anything? (a) paints the model (b) buys every material (c) understands the problem (d) builds at once
25. 25.🛞 More or less friction: chalk on a gym bar? (a) more friction (b) less friction
26. 26.🤝 A teammate’s idea seems odd. What should you do first? (a) ignore it (b) listen and ask why (c) walk away (d) laugh at it
27. 27.⚖️ Going along a lever from one end to the other, the order is: fulcrum, effort, load. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
28. 28.🪝 Fixed or movable pulley: which one only changes direction? (a) a movable pulley (b) a fixed pulley
29. 29.Which need does a bridge meet? (a) cross a wide river (b) keep food fresh longer (c) store water for summer (d) make water safe to drink
30. 30.True or false: a biomedical engineer designs a flyover. (a) False (b) True
31. 31.📐 A model car is drawn so that 1 cm stands for 30 cm. The car is 10 cm long in the drawing. How long is the real car, in centimetres?
32. 32.Which need does a tunnel meet? (a) reach a top floor fast (b) keep food fresh longer (c) go through a mountain (d) talk to someone far away
33. 33.🛠️ Engineers use maths and which other subject the most? (a) science (b) dance (c) music (d) cooking
34. 34.⚖️ A lever bar balances. The load is 240 N at ? cm from the fulcrum. The effort is 120 N at 60 cm from the fulcrum on the other side. What is the missing distance in centimetres?
35. 35.🔍 Which is the odd one out? (a) iron (b) graphite (c) aluminium (d) dry wood
36. 36.🛠️ Which of these is a problem an engineer could solve? (a) a lost cricket match (b) a sad song (c) a road that floods (d) a boring story
37. 37.🧪 A paper bridge was tested three times. It held 320 g, 170 g and 230 g. What is the mean (average) load it held, in grams?
38. 38.True or false: a swing chain is in tension (pulled). (a) True (b) False
39. 39.⚖️ A lever bar balances. The load is 90 N at 50 cm from the fulcrum. The effort is ? N at 90 cm from the fulcrum on the other side. What is the missing force in newtons?
40. 40.🧪 Why repeat a test three times? (a) to use more paper (b) it looks busy (c) to get reliable results (d) the first is wrong

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