Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 738 · 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.🤝 A team plans for 25 minutes, builds for 10 minutes and then tests for 5 minutes, one after another. How many minutes is that in all?
2. 2.Which of these is reduce (use less)? (a) melt cans into new cans (b) give old books away (c) switch off unused lights (d) turn plastic into tiles
3. 3.🧪 A paper bridge was tested three times. It held 280 g, 200 g and 210 g. What is the mean (average) load it held, in grams?
4. 4.🔍 Which is the odd one out? (a) powder on a carrom board (b) a rough doormat (c) a smooth steel slide (d) a wet tiled floor
5. 5.True or false: a table leg is in tension (pulled). (a) True (b) False
6. 6.True or false: a curved stone doorway uses an arch. (a) False (b) True
7. 7.💪 A bag has a mass of 12 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
8. 8.⚖️ Which class of lever is a lemon squeezer? (a) class 3 (b) class 2 (c) class 1
9. 9.📐 On a plan, 1 cm stands for 5 m. A wall is 10 cm long on the plan. How long is the real wall, in metres?
10. 10.🔺 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
11. 11.🔢 To follow the engineering design process, which comes first: “Plan” or “Test”? (a) Test (b) Plan
12. 12.🔍 Which is the odd one out? (a) graphite (b) rubber (c) glass (d) dry wood
13. 13.🦺 How should you carry scissors? (a) while running (b) points up, open (c) points down, closed (d) by the blades
14. 14.Which job does a chemical engineer do? (a) designs satellites (b) designs a paint factory (c) designs a metro tunnel (d) wires a new building
15. 15.Which of these needs an electrical conductor? (a) a car windscreen (b) a plug pin (c) a raincoat (d) an oven glove
16. 16.Which job does an aerospace engineer do? (a) designs factory machines (b) refines crude oil (c) designs a paint factory (d) plans a space mission
17. 17.🌉 A beam bridge 60 m long is split by piers into 4 equal spans. How long is each span, in metres?
18. 18.🔍 Which is the odd one out? (a) tie back long hair (b) put tools back after use (c) wear safety goggles (d) play near a moving drill
19. 19.📋 For a model bridge challenge, is “keep ice for 1 hour” a constraint or a criterion? (a) a constraint (b) a criterion
20. 20.🔍 Which is the odd one out? (a) a hanging lamp chain (b) a bridge pier (c) a pillar under a roof (d) a table leg
21. 21.True or false: a telephone helps people talk to someone far away. (a) True (b) False
22. 22.True or false: to brainstorm many ideas is the Imagine step. (a) False (b) True
23. 23.🔍 Which is the odd one out? (a) stand in a fan breeze (b) lift a cup of water (c) use only paper and tape (d) keep ice for 1 hour
24. 24.⚖️ A seesaw balances. Arjun (200 N) sits 2 m from the pivot on one side; Meena (? N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?
25. 25.♻️ Which is the BEST order to think about waste? (a) reduce, reuse, recycle (b) recycle, reuse, reduce (c) reuse, recycle, reduce (d) burn, bury, forget
26. 26.True or false: a movable pulley halves the effort. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) a tug of war rope (b) a tow rope on a car (c) a suspension cable (d) a stone in an arch
28. 28.📐 A beam is 280 cm long. How long is it in metres? =
29. 29.🔺 A flat frame has 4 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
30. 30.🏋️ A force of 30 N pushes a cart 4 m along the floor. How much work is done, in joules?
31. 31.Which of these uses a beam? (a) a planetarium roof (b) a truss bridge side (c) a lintel over a door (d) a bicycle frame
32. 32.📐 Why do engineers use scale drawings? (a) big things fit on paper (b) to save ink only (c) to hide sizes (d) to make them pretty
33. 33.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
34. 34.🏚️ Three solid model towers are made of the same material. Tower A is 10 cm tall on a 10 cm wide base, tower B is 120 cm tall on a 40 cm base and tower C is 80 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
35. 35.🔍 Which is the odd one out? (a) a bridge (b) a mountain (c) a satellite (d) a water filter
36. 36.True or false: to do all the work alone is poor teamwork. (a) False (b) True
37. 37.True or false: a civil engineer designs power lines. (a) False (b) True
38. 38.🌉 Which bridge type: “the longest spans of all”? (a) suspension bridge (b) arch bridge (c) beam bridge
39. 39.⚖️ Which class of lever is your forearm? (a) class 3 (b) class 1 (c) class 2
40. 40.Which of these is a suspension bridge? (a) a log across a stream (b) a curve under the deck (c) a rope bridge in hills (d) good for short gaps

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