Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 847 · 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.🔢 To follow the engineering design process, which is the FIRST step? (a) Plan (b) Create (c) Imagine (d) Ask
2. 2.🔄 Which design-process step is it to ask who will use it? (a) Improve (b) Test (c) Ask (d) Plan
3. 3.⚖️ A seesaw balances. Kabir (180 N) sits 2 m from the pivot on one side; Zoya (? N) sits 1 m from the pivot on the other side. What is the missing weight in newtons?
4. 4.📐 On a plan, 1 cm stands for 10 m. A real bridge is 90 m long. How long is it on the plan, in centimetres?
5. 5.🔍 Which is the odd one out? (a) a bridge pier (b) a tow rope on a car (c) a hanging lamp chain (d) a stretched rubber band
6. 6.🔍 Which is the odd one out? (a) finish in 40 minutes (b) hold up 500 g (c) use only paper and tape (d) use at most 20 straws
7. 7.📐 How many metres are in 1 kilometre? (a) 10000 (b) 100 (c) 10 (d) 1000
8. 8.🛞 Which surface gives the MOST friction to a sliding block? (a) polished marble (b) glass (c) sandpaper (d) ice
9. 9.🔺 A flat frame has 11 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
10. 10.🪝 What does a single fixed pulley change? (a) the size of the load (b) the colour of rope (c) the direction of pull (d) gravity
11. 11.🏋️ A longer ramp to the same height needs … (a) the same effort (b) less effort (c) more effort (d) no effort
12. 12.🤝 A team plans for 40 minutes, builds for 35 minutes and then tests for 5 minutes, one after another. How many minutes is that in all?
13. 13.🧱 Which property matters most for an umbrella cover? (a) flexible (b) transparent (c) heat insulator (d) waterproof
14. 14.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) raising heavy tanks high (c) having a wide base (d) fitting rubber base pads
15. 15.🧱 Which property matters most for a yoga mat? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
16. 16.⚖️ A lever balances when … (a) the bar is short (b) the fulcrum moves (c) both weights are equal (d) turning effects match
17. 17.True or false: pulling a cart is a pull. (a) True (b) False
18. 18.⚖️ A lever bar balances. The load is 20 N at ? cm from the fulcrum. The effort is 30 N at 20 cm from the fulcrum on the other side. What is the missing distance in centimetres?
19. 19.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
20. 20.🏋️ A machine lifts a load of 680 N when you push with 170 N. What is its mechanical advantage (MA)?
21. 21.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
22. 22.🌉 Which bridge type can cross the widest gap in one span? (a) log bridge (b) arch bridge (c) suspension bridge (d) beam bridge
23. 23.📋 Your team’s budget is ₹60. You must buy one roll of tape for ₹20. Straws cost ₹2 each. What is the greatest number of straws you can buy?
24. 24.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
25. 25.Which of these is caused by magnetic force? (a) an apple falls down (b) a river flows downhill (c) squeezing a lemon (d) a magnet picks up pins
26. 26.Which of these is reuse (use again)? (a) melt glass into new jars (b) pulp old paper (c) fix a dripping tap (d) give old books away
27. 27.🔄 In which step do engineers draw a labelled diagram? (a) Ask (b) Improve (c) Test (d) Plan
28. 28.True or false: a movable pulley stays in one place. (a) True (b) False
29. 29.💪 Which force pulls everything towards the Earth? (a) gravity (b) magnetism (c) wind (d) friction
30. 30.🛞 More or less friction: a grippy rubber sole? (a) less friction (b) more friction
31. 31.🏋️ In which unit is work measured? (a) newton (N) (b) watt hour (c) joule (J) (d) metre (m)
32. 32.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a glass sheet 4 N, a wooden plank 8 N, sandpaper 11 N, ice 3 N. Which surface gave the most friction? (a) a glass sheet (b) a wooden plank (c) sandpaper (d) ice
33. 33.True or false: “spend at most ₹100” is a criterion (a goal). (a) False (b) True
34. 34.Which job does a chemical engineer do? (a) makes medicines in bulk (b) plans a dam (c) designs aeroplane wings (d) plans a space mission
35. 35.🪝 A bucket weighing 440 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
36. 36.Which of these is a lever? (a) the tip of a nail (b) a nutcracker (c) a wheelchair ramp (d) a round doorknob
37. 37.🛠️ People need to store water for summer. Which invention helps? (a) a lift (b) a dam (c) a water filter (d) a fridge
38. 38.💪 Two children push a box to the right, one with 85 N and the other with 15 N. What is the net (total) force on the box, in newtons?
39. 39.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a telescope (c) a fridge (d) a shake table
40. 40.🦺 In the workshop, is it safe to touch a hot glue tip? (a) not safe (b) safe

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