Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 152 · 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.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a carpet 6 N, sandpaper 7 N, ice 1 N, a glass sheet 3 N. Which surface gave the least friction? (a) a carpet (b) a glass sheet (c) sandpaper (d) ice
2. 2.🔢 To follow the engineering design process, which comes first: “Ask” or “Test”? (a) Test (b) Ask
3. 3.True or false: a wet tiled floor gives less friction. (a) False (b) True
4. 4.📋 For a model bridge challenge, is “lift a cup of water” a constraint or a criterion? (a) a criterion (b) a constraint
5. 5.🦺 In the workshop, is it safe to cut towards your hand? (a) safe (b) not safe
6. 6.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
7. 7.🔺 A frame shaped like a triangle is made of straws joined by loose pins, with 0 corner-to-corner braces. Is it rigid or wobbly? (a) wobbly (b) rigid
8. 8.🔺 Which strong shape does a shelf on two brackets use? (a) dome (b) arch (c) triangle (d) beam
9. 9.⚙️ A screw is really … (a) a tiny pulley (b) a bent lever (c) a ramp wrapped round (d) a kind of wheel
10. 10.🪢 Tension or compression: a tent guy rope? (a) tension (b) compression
11. 11.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) copper (d) iron
12. 12.True or false: a microscope helps people see very tiny things. (a) True (b) False
13. 13.📋 For a model bridge challenge, is “use only paper and tape” a constraint or a criterion? (a) a constraint (b) a criterion
14. 14.⚖️ A seesaw balances. Ravi (390 N) sits ? m from the pivot on one side; Zoya (130 N) sits 3 m from the pivot on the other side. What is the missing distance in metres?
15. 15.🔺 A flat frame has 5 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
16. 16.📐 Why do engineers use scale drawings? (a) to hide sizes (b) to save ink only (c) big things fit on paper (d) to make them pretty
17. 17.True or false: to fix the weak part is the Improve step. (a) True (b) False
18. 18.True or false: to brainstorm many ideas is the Test step. (a) False (b) True
19. 19.True or false: to do all the work alone is poor teamwork. (a) True (b) False
20. 20.📐 On a plan, 1 cm stands for 5 m. A wall is 12 cm long on the plan. How long is the real wall, in metres?
21. 21.📐 A beam is 340 cm long. How long is it in metres? =
22. 22.🌉 Which bridge type: “deck hangs from cables”? (a) arch bridge (b) beam bridge (c) suspension bridge
23. 23.⚖️ Which class of lever is a pair of scissors? (a) class 1 (b) class 3 (c) class 2
24. 24.True or false: a planetarium roof uses a dome. (a) False (b) True
25. 25.🪢 Tension or compression: a suspension cable? (a) tension (b) compression
26. 26.🛞 Rubbing your hands fast makes them … (a) warm (b) magnetic (c) cold (d) wet
27. 27.⚖️ A seesaw balances. Ravi (? N) sits 3 m from the pivot on one side; Arjun (300 N) sits 1 m from the pivot on the other side. What is the missing weight in newtons?
28. 28.True or false: a crane hook block is a wedge. (a) True (b) False
29. 29.🌉 Which bridge type: “a log across a stream”? (a) arch bridge (b) suspension bridge (c) beam bridge
30. 30.True or false: an aerospace engineer plans a power grid. (a) True (b) False
31. 31.🏋️ A longer ramp to the same height needs … (a) no effort (b) less effort (c) the same effort (d) more effort
32. 32.True or false: natural gas is a non-renewable energy source. (a) False (b) True
33. 33.Which of these happens in the Ask step? (a) follow the plan to build (b) draw a labelled diagram (c) find the limits (d) list the materials
34. 34.True or false: wind is a non-renewable energy source. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) a tyre with deep treads (b) a rough doormat (c) skating on ice (d) a grippy rubber sole
36. 36.⚖️ A lever balances when … (a) the bar is short (b) both weights are equal (c) the fulcrum moves (d) turning effects match
37. 37.True or false: to share the work fairly is poor teamwork. (a) False (b) True
38. 38.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: sandpaper 12 N, a glass sheet 1 N, a wooden plank 5 N, a carpet 8 N. How many newtons more were needed on sandpaper than on a glass sheet?
39. 39.🌉 In a stone arch bridge, the stones are in … (a) no force (b) compression (c) friction (d) tension
40. 40.📐 A model car is drawn so that 1 cm stands for 20 cm. The car is 15 cm long in the drawing. How long is the real car, in centimetres?

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