Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 884 · 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 flat deck on piers” is a suspension bridge. (a) True (b) False
2. 2.📐 A beam is 880 cm long. How long is it in metres? =
3. 3.🪢 Tension is a force that … (a) turns things (b) heats things (c) pushes or squeezes (d) pulls or stretches
4. 4.🌉 What holds up a long beam bridge in the middle? (a) nothing (b) cables only (c) piers (d) balloons
5. 5.True or false: to hide a failed test is poor testing. (a) True (b) False
6. 6.⚙️ Which simple machine is a wheelchair ramp? (a) pulley (b) screw (c) wedge (d) inclined plane
7. 7.🏋️ In which unit is work measured? (a) newton (N) (b) metre (m) (c) watt hour (d) joule (J)
8. 8.True or false: a solar panel helps people talk to someone far away. (a) True (b) False
9. 9.💪 A force is a … (a) kind of colour (b) push or a pull (c) unit of time (d) type of sound
10. 10.True or false: a biomedical engineer builds hospital scanners. (a) True (b) False
11. 11.🛠️ Is a bridge made by engineers or found in nature? (a) found in nature (b) made by engineers
12. 12.🧪 A paper bridge was tested three times. It held 290 g, 190 g and 180 g. What is the mean (average) load it held, in grams?
13. 13.True or false: an electrical engineer designs satellites. (a) False (b) True
14. 14.True or false: a solar panel helps people keep food fresh longer. (a) True (b) False
15. 15.True or false: to cut towards your hand is not safe. (a) True (b) False
16. 16.🏋️ A smooth ramp is 18 m long and rises 3 m. What effort pushes a 1500 N box up it, in newtons? (ideal ramp, no friction)
17. 17.💪 In a tug of war, one team pulls right with 80 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
18. 18.⚖️ Along a straight bar, measured from the left end, the effort is at 20 cm, the fulcrum at 50 cm and the load at 80 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
19. 19.📐 Why do engineers use scale drawings? (a) to make them pretty (b) to save ink only (c) to hide sizes (d) big things fit on paper
20. 20.♻️ Which is the BEST order to think about waste? (a) burn, bury, forget (b) reduce, reuse, recycle (c) reuse, recycle, reduce (d) recycle, reuse, reduce
21. 21.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
22. 22.💪 Two children push a box to the right, one with 80 N and the other with 10 N. What is the net (total) force on the box, in newtons?
23. 23.True or false: to play near a moving drill is not safe. (a) False (b) True
24. 24.True or false: to cut towards your hand is safe. (a) True (b) False
25. 25.True or false: a dam helps people see very tiny things. (a) True (b) False
26. 26.True or false: “use at most 20 straws” is a constraint (a limit). (a) False (b) True
27. 27.⚖️ Which class of lever is a wheelbarrow? (a) class 1 (b) class 3 (c) class 2
28. 28.⚖️ A lever bar balances. The load is 210 N at ? cm from the fulcrum. The effort is 60 N at 70 cm from the fulcrum on the other side. What is the missing distance in centimetres?
29. 29.True or false: “float for 1 minute” is a constraint (a limit). (a) True (b) False
30. 30.True or false: to use the same load is poor testing. (a) False (b) True
31. 31.🔍 Which is the odd one out? (a) touch a hot glue tip (b) use a cracked tool (c) run while holding tools (d) wear safety goggles
32. 32.True or false: to drive in a nail, use sandpaper. (a) False (b) True
33. 33.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
34. 34.♻️ Is wind a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
35. 35.🛠️ Is a mobile phone made by engineers or found in nature? (a) found in nature (b) made by engineers
36. 36.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
37. 37.🔍 Which is the odd one out? (a) spend at most ₹100 (b) roll at least 2 metres (c) stand in a fan breeze (d) carry 10 coins
38. 38.🏋️ A force of 10 N did 30 J of work. How many metres did the object move?
39. 39.🛠️ People need to carry many people far. Which invention helps? (a) a microscope (b) a train (c) a water filter (d) a tunnel
40. 40.📋 A design meets every criterion but costs more than the budget. Is it acceptable? (a) yes, always (b) yes, it works (c) no, it breaks a limit (d) only if it is red

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