Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 654 · 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.⚙️ A screw is really … (a) a kind of wheel (b) a ramp wrapped round (c) a tiny pulley (d) a bent lever
2. 2.Which of these needs an electrical conductor? (a) a car seat belt (b) the core of a wire (c) a magnifier lens (d) a spectacle lens
3. 3.🧪 The first prototype held 160 g. After the team improved it, the new prototype held 330 g. How many more grams did it hold?
4. 4.Which of these is an inclined plane? (a) a crowbar (b) the tip of a nail (c) a screw jack (d) a truck loading ramp
5. 5.Which job does an electrical engineer do? (a) plans a space mission (b) designs a gearbox (c) builds rockets (d) wires a new building
6. 6.True or false: “spend at most ₹100” is a constraint (a limit). (a) True (b) False
7. 7.🪢 Which material is good in tension but useless in compression? (a) a stone (b) a rope (c) a brick (d) a concrete block
8. 8.Which of these is a wedge? (a) the tip of a nail (b) a screw jack (c) a well-bucket rope wheel (d) a crane hook block
9. 9.🤝 Is it good or poor teamwork to blame others for faults? (a) poor teamwork (b) good teamwork
10. 10.🔧 Which tool would you use to tighten a nut? (a) sandpaper (b) a spanner (c) a protractor (d) a spirit level
11. 11.📐 A model car is drawn so that 1 cm stands for 10 cm. The car is 12 cm long in the drawing. How long is the real car, in centimetres?
12. 12.True or false: to hide a mistake is poor teamwork. (a) False (b) True
13. 13.⚙️ Which simple machine is a nutcracker? (a) screw (b) lever (c) wedge (d) inclined plane
14. 14.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) glass (d) rubber
15. 15.⚖️ A seesaw balances. Ravi (170 N) sits 4 m from the pivot on one side; Meena (? N) sits 1 m from the pivot on the other side. What is the missing weight in newtons?
16. 16.🪝 A well winch has a handle (wheel) of radius 15 cm turning an axle of radius 3 cm. What is its mechanical advantage (MA)?
17. 17.🤝 A team of 2 shares 6 equal jobs fairly. Each job takes 7 minutes. How many minutes does each person work?
18. 18.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
19. 19.📋 Constraint: the tower must be no taller than 80 cm. The team’s tower is 82 cm tall. Is it within the constraint? (a) Yes (b) No
20. 20.📐 On a plan, 1 cm stands for 2 m. A wall is 3 cm long on the plan. How long is the real wall, in metres?
21. 21.True or false: a tug of war rope is in tension (pulled). (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) cut towards your hand (b) clamp wood before sawing (c) tie back long hair (d) wear safety goggles
23. 23.🔍 Which is the odd one out? (a) a stone in an arch (b) a brick at a wall base (c) a tent guy rope (d) a temple column
24. 24.🤝 A teammate’s idea seems odd. What should you do first? (a) walk away (b) laugh at it (c) listen and ask why (d) ignore it
25. 25.🪢 Tension is a force that … (a) turns things (b) heats things (c) pulls or stretches (d) pushes or squeezes
26. 26.True or false: “finish in 40 minutes” is a constraint (a limit). (a) False (b) True
27. 27.True or false: a tall bridge tower is in tension (pulled). (a) True (b) False
28. 28.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) friction (c) gravity (d) muscular force
29. 29.🌉 Which bridge type can cross the widest gap in one span? (a) suspension bridge (b) beam bridge (c) log bridge (d) arch bridge
30. 30.📐 On a plan, 1 cm stands for 20 m. A real bridge is 300 m long. How long is it on the plan, in centimetres?
31. 31.Which of these is found in nature? (a) a mobile phone (b) a mountain (c) a lift (d) a water filter
32. 32.True or false: a wheelbarrow is a class 2 lever (load in the middle). (a) False (b) True
33. 33.📋 For a model bridge challenge, is “carry 10 coins” a constraint or a criterion? (a) a constraint (b) a criterion
34. 34.⚖️ A lever balances when … (a) turning effects match (b) both weights are equal (c) the fulcrum moves (d) the bar is short
35. 35.📋 Criterion: the model bridge must hold at least 200 g. In the test it held 300 g. Does it meet the criterion? (a) No (b) Yes
36. 36.♻️ Which energy source will never run out? (a) petrol (b) coal (c) diesel (d) sunlight
37. 37.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to sell them at once (c) to test ideas cheaply (d) to avoid testing
38. 38.True or false: coal is a renewable energy source. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) using a light roof (b) building tall and narrow (c) keeping a simple shape (d) having a wide base
40. 40.🦺 In the workshop, is it safe to run while holding tools? (a) safe (b) not safe

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