Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 212 · 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 is the odd one out? (a) a dam (b) a seashell (c) a bridge (d) a railway track
2. 2.⚖️ In a class 1 lever, what is in the middle? (a) the load (b) the effort (c) nothing (d) the fulcrum
3. 3.Which of these is reduce (use less)? (a) pulp old paper (b) turn plastic into tiles (c) buy less packaging (d) melt cans into new cans
4. 4.Which of these happens in the Improve step? (a) build the model (b) measure its performance (c) make it better, retest (d) pick the build order
5. 5.📋 For a model bridge challenge, is “float for 1 minute” a constraint or a criterion? (a) a criterion (b) a constraint
6. 6.🤝 How do engineers share a design with others? (a) no drawings at all (b) secret notes (c) clear labelled sketches (d) only talking fast
7. 7.Which of these is reuse (use again)? (a) switch off unused lights (b) refill a water bottle (c) turn plastic into tiles (d) buy less packaging
8. 8.📐 A model car is drawn so that 1 cm stands for 40 cm. The car is 13 cm long in the drawing. How long is the real car, in centimetres?
9. 9.True or false: to listen to every idea is poor teamwork. (a) True (b) False
10. 10.🦺 In the workshop, is it safe to wear safety goggles? (a) not safe (b) safe
11. 11.True or false: to leave tools on the floor is safe. (a) False (b) True
12. 12.Which of these happens in the Test step? (a) try it out (b) draw a labelled diagram (c) brainstorm many ideas (d) find the limits
13. 13.💪 In which unit do we measure force? (a) litre (L) (b) metre (m) (c) second (s) (d) newton (N)
14. 14.True or false: a movable pulley needs effort = load. (a) True (b) False
15. 15.Which need does a train meet? (a) carry many people far (b) go through a mountain (c) store water for summer (d) reach a top floor fast
16. 16.True or false: a box pushed on carpet gives more friction. (a) False (b) True
17. 17.🔍 Which is the odd one out? (a) lift a cup of water (b) keep ice for 1 hour (c) fit on a school desk (d) hold up 500 g
18. 18.Which need does a dam meet? (a) go through a mountain (b) store water for summer (c) talk to someone far away (d) make water safe to drink
19. 19.Which of these is a beam bridge? (a) a curve under the deck (b) pushes out on its ends (c) the simplest bridge (d) the longest spans of all
20. 20.True or false: a train helps people carry many people far. (a) True (b) False
21. 21.🔍 Which is the odd one out? (a) using flexible joints (b) having a wide base (c) fitting rubber base pads (d) using a heavy roof
22. 22.True or false: a chemical engineer designs satellites. (a) True (b) False
23. 23.🏋️ A 20 kg box is lifted straight up by 3 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
24. 24.💪 A bag has a mass of 45 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
25. 25.♻️ A school bench is made from 450 recycled plastic bottles. How many benches can be made from 2250 bottles?
26. 26.⚙️ Which simple machine is a nutcracker? (a) inclined plane (b) wheel and axle (c) wedge (d) lever
27. 27.🏋️ A smooth ramp is 8 m long and rises 2 m. What effort pushes a 3400 N box up it, in newtons? (ideal ramp, no friction)
28. 28.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 170 g and design C held 270 g. Which design was the strongest? (a) design B (b) design A (c) design C
29. 29.🤝 In a design team, who tracks what is used up? (a) builder (b) tester (c) team leader (d) materials manager
30. 30.🔺 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
31. 31.Which of these is caused by magnetic force? (a) shoes grip the floor (b) a river flows downhill (c) a compass needle turns (d) squeezing a lemon
32. 32.🤝 In a design team, who shares out the jobs? (a) materials manager (b) builder (c) recorder (d) team leader
33. 33.🏋️ A force of 440 N did 3080 J of work. How many metres did the object move?
34. 34.📐 A beam is 120 cm long. How long is it in metres? =
35. 35.🧪 A paper bridge was tested three times. It held 270 g, 100 g and 200 g. What is the mean (average) load it held, in grams?
36. 36.🪝 A load of 510 N hangs from a pulley system in which 3 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
37. 37.🔧 Which tool would you use to drive in a nail? (a) a tape measure (b) a hammer (c) a spirit level (d) a saw
38. 38.🏋️ Work is done when a force moves something … (a) very slowly (b) only upwards (c) through a distance (d) without moving it
39. 39.🪝 A load of 160 N hangs from a pulley system in which 2 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
40. 40.True or false: “spend at most ₹100” is a criterion (a goal). (a) True (b) False

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