Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 304 · 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 playground slide (b) a crowbar (c) a wheelchair ramp (d) a truck loading ramp
2. 2.True or false: “be under 30 cm tall” is a constraint (a limit). (a) True (b) False
3. 3.📋 Constraint: the tower must be no taller than 90 cm. The team’s tower is 96 cm tall. Is it within the constraint? (a) No (b) Yes
4. 4.🧱 Which property matters most for a yoga mat? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
5. 5.🪢 Tension is a force that … (a) pushes or squeezes (b) turns things (c) heats things (d) pulls or stretches
6. 6.True or false: “hold up 500 g” is a criterion (a goal). (a) False (b) True
7. 7.⚖️ A seesaw balances. Zoya (280 N) sits 1 m from the pivot on one side; Ravi (140 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
8. 8.🧑‍🔧 Which kind of engineer designs a flyover? (a) civil (b) mechanical (c) electrical (d) chemical
9. 9.⚖️ On a seesaw, a heavier child should sit … (a) closer to the pivot (b) farther from the pivot (c) on the pivot (d) anywhere
10. 10.📐 How many millimetres are in 1 centimetre? (a) 10 (b) 1000 (c) 5 (d) 100
11. 11.⚙️ Which simple machine is a nut and bolt? (a) lever (b) wedge (c) pulley (d) screw
12. 12.⚖️ Along a straight bar, measured from the left end, the effort is at 40 cm, the fulcrum at 60 cm and the load at 10 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
13. 13.🏋️ In which unit is work measured? (a) watt hour (b) metre (m) (c) joule (J) (d) newton (N)
14. 14.⚖️ A seesaw balances. Arjun (480 N) sits 4 m from the pivot on one side; Meena (? N) sits 3 m from the pivot on the other side. What is the missing weight in newtons?
15. 15.🔢 To follow the engineering design process, which comes first: “Plan” or “Improve”? (a) Plan (b) Improve
16. 16.🔍 Which is the odd one out? (a) use at most 20 straws (b) fit on a school desk (c) keep ice for 1 hour (d) finish in 40 minutes
17. 17.Which of these uses an arch? (a) a fort gateway (b) an igloo (c) a shelf on two brackets (d) a truss bridge side
18. 18.Which of these is in tension (pulled)? (a) a table leg (b) a tug of war rope (c) a pillar under a roof (d) a brick at a wall base
19. 19.🔄 Which design-process step is it to ask who will use it? (a) Imagine (b) Create (c) Ask (d) Plan
20. 20.🤝 How do engineers share a design with others? (a) only talking fast (b) secret notes (c) no drawings at all (d) clear labelled sketches
21. 21.True or false: to cut a wooden plank, use pliers. (a) False (b) True
22. 22.🔺 A flat frame has 4 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
23. 23.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a wooden plank 6 N, a carpet 7 N, sandpaper 10 N, a glass sheet 2 N. How many newtons more were needed on sandpaper than on a glass sheet?
24. 24.📋 Your team’s budget is ₹34. You must buy one roll of tape for ₹20. Straws cost ₹1 each. What is the greatest number of straws you can buy?
25. 25.🔺 Which strong shape does a slab over a canal use? (a) arch (b) dome (c) beam (d) triangle
26. 26.Which of these is a lever? (a) a steering wheel (b) a road up a hill (c) a seesaw (d) a water tap handle
27. 27.True or false: to run while holding tools is not safe. (a) False (b) True
28. 28.Which of these is reuse (use again)? (a) buy less packaging (b) pulp old paper (c) print on both sides (d) refill a water bottle
29. 29.🔢 To follow the engineering design process, which comes first: “Improve” or “Plan”? (a) Improve (b) Plan
30. 30.📋 For a model bridge challenge, is “lift a cup of water” a constraint or a criterion? (a) a criterion (b) a constraint
31. 31.🧱 Which property matters most for a boat hull? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
32. 32.💪 Two children push a box to the right, one with 25 N and the other with 45 N. What is the net (total) force on the box, in newtons?
33. 33.🤝 Is it good or poor teamwork to share the work fairly? (a) good teamwork (b) poor teamwork
34. 34.🏋️ A force of 200 N pushes a cart 6 m along the floor. How much work is done, in joules?
35. 35.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “build it with straws”? (a) load it with coins (b) build it with straws
36. 36.🌉 Which bridge type can cross the widest gap in one span? (a) log bridge (b) arch bridge (c) suspension bridge (d) beam bridge
37. 37.🧑‍🔧 Which branch of engineering works on aeroplanes and rockets? (a) chemical (b) civil (c) aerospace (d) computer
38. 38.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) building tall and narrow (c) using a light roof (d) adding cross bracing
39. 39.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
40. 40.Which of these needs a transparent material? (a) a magnifier lens (b) a raincoat (c) a roof sheet (d) a skipping rope

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