Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 732 · 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) finish in 40 minutes (b) keep ice for 1 hour (c) carry 10 coins (d) roll at least 2 metres
2. 2.🪝 A load of 560 N hangs from a pulley system in which 4 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
3. 3.🔍 Which is the odd one out? (a) a rough doormat (b) powder on a carrom board (c) oil on a squeaky hinge (d) a wheel on ball bearings
4. 4.🪝 A winch has a wheel of radius 35 cm and an axle of radius 5 cm. What effort on the wheel lifts a 980 N bucket on the axle, in newtons? (ideal)
5. 5.♻️ A sustainable design … (a) uses the most plastic (b) lasts one day (c) wastes water (d) protects the future
6. 6.⚙️ How many simple machines are there in the usual list? (a) 10 (b) 12 (c) 3 (d) 6
7. 7.Which of these is a screw? (a) a jar lid (b) a crane hook block (c) a water tap handle (d) a steering wheel
8. 8.Which job does a civil engineer do? (a) refines crude oil (b) designs a metro tunnel (c) wires a new building (d) plans a power grid
9. 9.🔍 Which is the odd one out? (a) change lots at once (b) use a new load each time (c) skip writing results (d) measure the same way
10. 10.🦺 What protects your eyes when sawing or drilling? (a) sunglasses (b) a cap (c) nothing (d) safety goggles
11. 11.⚖️ Along a straight bar, measured from the left end, the effort is at 0 cm, the fulcrum at 50 cm and the load at 40 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
12. 12.Which of these needs a waterproof material? (a) a car seat belt (b) a hair band (c) a spectacle lens (d) a water tank
13. 13.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 170 g. How many more grams did it hold?
14. 14.Which job is a spanner for? (a) make a hole in wood (b) tighten a nut (c) cut a wooden plank (d) drive in a nail
15. 15.🧪 A paper bridge was tested three times. It held 230 g, 170 g and 140 g. What is the mean (average) load it held, in grams?
16. 16.🛠️ Is a ceiling fan made by engineers or found in nature? (a) made by engineers (b) found in nature
17. 17.🔺 A flat frame has 9 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
18. 18.🤝 Is it good or poor teamwork to talk over others? (a) good teamwork (b) poor teamwork
19. 19.🪝 A pulley system has 4 rope sections holding up the load. To lift the load by 8 m, how many metres of rope must you pull?
20. 20.🔧 Which tool would you use to measure a long length? (a) a saw (b) a tape measure (c) a spirit level (d) sandpaper
21. 21.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
22. 22.⚖️ Which class of lever is a pair of tweezers? (a) class 2 (b) class 1 (c) class 3
23. 23.🤝 A team of 5 shares 10 equal jobs fairly. Each job takes 3 minutes. How many minutes does each person work?
24. 24.🪝 What does a single fixed pulley change? (a) the colour of rope (b) gravity (c) the direction of pull (d) the size of the load
25. 25.🔺 Which strong shape does a planetarium roof use? (a) dome (b) arch (c) beam (d) triangle
26. 26.⚖️ Turning effect = force × … (a) time taken (b) distance from fulcrum (c) colour of bar (d) mass of fulcrum
27. 27.💪 Which force is at work: an apple falls down? (a) muscular force (b) gravity (c) friction (d) magnetic force
28. 28.🪝 Fixed or movable pulley: which one rises with the load? (a) a fixed pulley (b) a movable pulley
29. 29.⚖️ A seesaw balances. Arjun (100 N) sits ? m from the pivot on one side; Asha (200 N) sits 1 m from the pivot on the other side. What is the missing distance in metres?
30. 30.Which job is a tape measure for? (a) turn a screw (b) make a hole in wood (c) measure a long length (d) smooth a rough edge
31. 31.True or false: to tie back long hair is not safe. (a) False (b) True
32. 32.🤝 In a design team, who runs the tests? (a) tester (b) builder (c) recorder (d) team leader
33. 33.⚖️ To lift a heavy rock with a crowbar more easily, push … (a) near the fulcrum (b) far from the fulcrum (c) on the fulcrum (d) on the rock
34. 34.🪝 A pulley system has 1 rope section holding up the load. To lift the load by 6 m, how many metres of rope must you pull?
35. 35.🔺 Which shape keeps its shape best when its corners are pinned? (a) square (b) triangle (c) rectangle (d) hexagon
36. 36.♻️ Is natural gas a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
37. 37.Which of these happens in the Test step? (a) fix the weak part (b) make a prototype (c) define the problem (d) check it against goals
38. 38.Which job does a civil engineer do? (a) makes medicines in bulk (b) designs power lines (c) designs a paint factory (d) designs a flyover
39. 39.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
40. 40.♻️ A project report has 92 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?

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