Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 901 · 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 strong shape does a bicycle frame use? (a) beam (b) arch (c) triangle (d) dome
2. 2.Which job is a spirit level for? (a) tighten a nut (b) check a shelf is level (c) drive in a nail (d) make a hole in wood
3. 3.🛞 Is friction helpful or a problem here: writing with a pencil? (a) helpful (b) a problem
4. 4.⚖️ Which class of lever is a pair of scissors? (a) class 2 (b) class 1 (c) class 3
5. 5.True or false: to change only one thing is good testing. (a) True (b) False
6. 6.🪝 A winch has a wheel of radius 30 cm and an axle of radius 5 cm. What effort on the wheel lifts a 480 N bucket on the axle, in newtons? (ideal)
7. 7.True or false: to measure the same way is poor testing. (a) True (b) False
8. 8.Which of these is in compression (pushed)? (a) a crane lifting cable (b) a tow rope on a car (c) a bridge pier (d) a suspension cable
9. 9.Which of these needs a flexible material? (a) a skipping rope (b) an oven glove (c) a plug pin (d) a switch contact
10. 10.🔍 Which is the odd one out? (a) keep ice for 1 hour (b) spend at most ₹100 (c) use at most 20 straws (d) finish in 40 minutes
11. 11.🧪 A paper bridge was tested three times. It held 290 g, 130 g and 270 g. What is the mean (average) load it held, in grams?
12. 12.🔍 Which is the odd one out? (a) float for 1 minute (b) hold up 500 g (c) finish in 40 minutes (d) carry 10 coins
13. 13.🛠️ People need to keep food fresh longer. Which invention helps? (a) a telephone (b) a fridge (c) a bridge (d) a water filter
14. 14.📋 Constraint: the tower must be no taller than 70 cm. The team’s tower is 64 cm tall. Is it within the constraint? (a) No (b) Yes
15. 15.True or false: to follow the plan to build is the Create step. (a) True (b) False
16. 16.True or false: a pair of tweezers is a class 1 lever (fulcrum in the middle). (a) True (b) False
17. 17.🧪 Why repeat a test three times? (a) the first is wrong (b) it looks busy (c) to use more paper (d) to get reliable results
18. 18.🌉 Which bridge type can cross the widest gap in one span? (a) suspension bridge (b) arch bridge (c) beam bridge (d) log bridge
19. 19.🧪 A paper bridge was tested three times. It held 250 g, 100 g and 190 g. What is the mean (average) load it held, in grams?
20. 20.Which need does a water filter meet? (a) make power from sunlight (b) go through a mountain (c) make water safe to drink (d) talk to someone far away
21. 21.📋 For a model bridge challenge, is “keep ice for 1 hour” a constraint or a criterion? (a) a criterion (b) a constraint
22. 22.True or false: a chemical engineer designs a paint factory. (a) True (b) False
23. 23.True or false: to measure an angle, use a protractor. (a) False (b) True
24. 24.What does the materials manager do? (a) collects the supplies (b) cuts and joins parts (c) shares out the jobs (d) keeps the team on track
25. 25.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) computer (b) chemical (c) biomedical (d) civil
26. 26.True or false: to record every result is poor testing. (a) False (b) True
27. 27.⚙️ Which simple machine is the tip of a nail? (a) inclined plane (b) wedge (c) wheel and axle (d) lever
28. 28.True or false: “spend at most ₹100” is a constraint (a limit). (a) False (b) True
29. 29.True or false: “stones squeezed together” is a beam bridge. (a) True (b) False
30. 30.🪝 Fixed or movable pulley: which one makes you pull 2× rope? (a) a movable pulley (b) a fixed pulley
31. 31.🦺 What protects your eyes when sawing or drilling? (a) a cap (b) sunglasses (c) safety goggles (d) nothing
32. 32.📐 How many centimetres are in 1 metre? (a) 60 (b) 10 (c) 1000 (d) 100
33. 33.💪 Which force is at work: a rolling ball slows? (a) friction (b) gravity (c) muscular force (d) magnetic force
34. 34.📐 A beam is 430 cm long. How long is it in metres? =
35. 35.⚖️ Going along a lever from one end to the other, the order is: effort, fulcrum, load. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
36. 36.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a telescope (c) a shake table (d) a microscope
37. 37.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
38. 38.True or false: to ignore the team plan is poor teamwork. (a) True (b) False
39. 39.🌉 Which bridge type: “deck hangs from cables”? (a) suspension bridge (b) arch bridge (c) beam bridge
40. 40.🔢 To build and test a straw bridge, which is the LAST step? (a) build it with straws (b) strengthen the weak part (c) choose and draw one (d) read the challenge rules

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