Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 3 · 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.True or false: a tent guy rope is in tension (pulled). (a) True (b) False
2. 2.🔢 To build and test a straw bridge, which is the LAST step? (a) read the challenge rules (b) choose and draw one (c) load it with coins (d) strengthen the weak part
3. 3.🔢 To follow the engineering design process, which is the LAST step? (a) Improve (b) Test (c) Ask (d) Imagine
4. 4.⚖️ A seesaw balances. Meena (330 N) sits 1 m from the pivot on one side; Arjun (? N) sits 3 m from the pivot on the other side. What is the missing weight in newtons?
5. 5.📐 A beam is 720 cm long. How long is it in metres? =
6. 6.True or false: to blame others for faults is poor teamwork. (a) False (b) True
7. 7.⚖️ Along a straight bar, measured from the left end, the effort is at 90 cm, the fulcrum at 50 cm and the load at 20 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
8. 8.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) rubber (d) copper
9. 9.⚖️ A seesaw balances. Meena (380 N) sits 3 m from the pivot on one side; Asha (570 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
10. 10.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “choose and draw one”? (a) build it with straws (b) choose and draw one
11. 11.🪝 What does a single fixed pulley change? (a) the direction of pull (b) the size of the load (c) the colour of rope (d) gravity
12. 12.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) having a wide base (c) using flexible joints (d) stacking loose bricks
13. 13.💪 Which force is at work: a thrown ball comes down? (a) gravity (b) muscular force (c) magnetic force (d) friction
14. 14.⚖️ Which class of lever is a fishing rod? (a) class 1 (b) class 2 (c) class 3
15. 15.📐 On a plan, 1 cm stands for 20 m. A wall is 18 cm long on the plan. How long is the real wall, in metres?
16. 16.Which of these is found in nature? (a) a mobile phone (b) a water filter (c) a railway track (d) a seashell
17. 17.🔍 Which is the odd one out? (a) leaving out steel bars (b) building tall and narrow (c) raising heavy tanks high (d) fitting rubber base pads
18. 18.📋 A design meets every criterion but costs more than the budget. Is it acceptable? (a) yes, it works (b) no, it breaks a limit (c) only if it is red (d) yes, always
19. 19.🏚️ Why is a wide base safer? (a) it is colourful (b) it is taller (c) it is lighter (d) it is harder to tip over
20. 20.🔍 Which is the odd one out? (a) keeping a simple shape (b) raising heavy tanks high (c) having a wide base (d) fitting rubber base pads
21. 21.🪢 A beam rests on two supports and is pressed down in the middle. Its bottom edge is … (a) twisted (b) not affected (c) squeezed (compression) (d) stretched (tension)
22. 22.🏋️ Pushing a crate 7 m took 1820 J of work. What force was used, in newtons?
23. 23.⚖️ Along a straight bar, measured from the left end, the effort is at 40 cm, the fulcrum at 60 cm and the load at 10 cm. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
24. 24.🏋️ Pushing a crate 4 m took 1320 J of work. What force was used, in newtons?
25. 25.True or false: a microscope helps people reach a top floor fast. (a) False (b) True
26. 26.🤝 How do engineers share a design with others? (a) no drawings at all (b) clear labelled sketches (c) secret notes (d) only talking fast
27. 27.⚖️ Along a straight bar, measured from the left end, the effort is at 20 cm, the fulcrum at 10 cm and the load at 30 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
28. 28.💪 Which force is at work: shoes grip the floor? (a) muscular force (b) friction (c) magnetic force (d) gravity
29. 29.🧪 A paper bridge was tested three times. It held 210 g, 70 g and 170 g. What is the mean (average) load it held, in grams?
30. 30.True or false: to dream up possible fixes is the Test step. (a) True (b) False
31. 31.📐 A model car is drawn so that 1 cm stands for 20 cm. The car is 10 cm long in the drawing. How long is the real car, in centimetres?
32. 32.🏋️ Pushing a crate 10 m took 2200 J of work. What force was used, in newtons?
33. 33.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
34. 34.⚖️ A lever bar balances. The load is ? N at 30 cm from the fulcrum. The effort is 60 N at 90 cm from the fulcrum on the other side. What is the missing force in newtons?
35. 35.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a wooden plank 6 N, a carpet 10 N, ice 4 N, a glass sheet 5 N. Which surface gave the most friction? (a) a glass sheet (b) a carpet (c) ice (d) a wooden plank
36. 36.True or false: to listen to every idea is poor teamwork. (a) False (b) True
37. 37.🌉 Which bridge type: “tall towers hold cables”? (a) arch bridge (b) suspension bridge (c) beam bridge
38. 38.🔍 Which is the odd one out? (a) use at most 20 straws (b) carry 10 coins (c) hold up 500 g (d) roll at least 2 metres
39. 39.True or false: an aerospace engineer plans a space mission. (a) False (b) True
40. 40.⚖️ A lever bar balances. The load is 180 N at 50 cm from the fulcrum. The effort is 450 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?

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