Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 785 · 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 box weighs 20 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
2. 2.♻️ Reduce, reuse or recycle: plant in old tyres? (a) recycle (b) reduce (c) reuse
3. 3.Which of these is made by engineers? (a) a mobile phone (b) a river (c) a volcano (d) a cloud
4. 4.⚙️ How many simple machines are there in the usual list? (a) 12 (b) 10 (c) 6 (d) 3
5. 5.♻️ A sustainable design … (a) uses the most plastic (b) wastes water (c) protects the future (d) lasts one day
6. 6.📐 How many metres are in 1 kilometre? (a) 10 (b) 100 (c) 10000 (d) 1000
7. 7.Which of these needs an electrical conductor? (a) a car seat belt (b) a switch contact (c) a water tank (d) a window pane
8. 8.🤝 Is it good or poor teamwork to hide a mistake? (a) poor teamwork (b) good teamwork
9. 9.🔢 To follow the engineering design process, which is the FIRST step? (a) Plan (b) Create (c) Ask (d) Improve
10. 10.🤝 Is it good or poor teamwork to help a stuck teammate? (a) poor teamwork (b) good teamwork
11. 11.🪝 A pulley system lifts a 1040 N load with an effort of 260 N. What is its mechanical advantage (MA)?
12. 12.Which of these needs a waterproof material? (a) a hair band (b) a magnifier lens (c) a roof sheet (d) a car seat belt
13. 13.Which need does a lift meet? (a) talk to someone far away (b) reach a top floor fast (c) keep food fresh longer (d) make water safe to drink
14. 14.🧱 Which property matters most for a tea flask lining? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
15. 15.True or false: hitting a cricket ball is a push. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) a bridge pier (b) a stretched rubber band (c) a crane lifting cable (d) a tow rope on a car
17. 17.📋 For a model bridge challenge, is “spend at most ₹100” a constraint or a criterion? (a) a constraint (b) a criterion
18. 18.📋 For a model bridge challenge, is “use only paper and tape” a constraint or a criterion? (a) a criterion (b) a constraint
19. 19.🪝 A bucket weighing 300 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
20. 20.⚙️ A screw is really … (a) a bent lever (b) a tiny pulley (c) a kind of wheel (d) a ramp wrapped round
21. 21.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using flexible joints (c) keeping a simple shape (d) making brittle joints
22. 22.🔄 Which design-process step is it to fix the weak part? (a) Test (b) Plan (c) Imagine (d) Improve
23. 23.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) one (c) two (d) none
24. 24.🤝 In a design team, who shares out the jobs? (a) tester (b) team leader (c) builder (d) recorder
25. 25.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
26. 26.🔍 Which is the odd one out? (a) a river (b) a cloud (c) a banyan tree (d) a satellite
27. 27.🔍 Which is the odd one out? (a) adding steel to concrete (b) keeping a simple shape (c) having a wide base (d) building tall and narrow
28. 28.🏋️ A smooth ramp is 6 m long and rises 3 m. What effort pushes a 1000 N box up it, in newtons? (ideal ramp, no friction)
29. 29.📋 For a model bridge challenge, is “finish in 40 minutes” a constraint or a criterion? (a) a constraint (b) a criterion
30. 30.⚙️ Which simple machine is a nut and bolt? (a) screw (b) inclined plane (c) wedge (d) wheel and axle
31. 31.🔍 Which is the odd one out? (a) a railway track (b) a mountain (c) a cloud (d) a waterfall
32. 32.⚖️ A lever balances when … (a) the fulcrum moves (b) the bar is short (c) both weights are equal (d) turning effects match
33. 33.⚖️ A lever bar balances. The load is ? N at 40 cm from the fulcrum. The effort is 280 N at 30 cm from the fulcrum on the other side. What is the missing force in newtons?
34. 34.⚖️ A seesaw balances. Asha (390 N) sits ? m from the pivot on one side; Meena (520 N) sits 3 m from the pivot on the other side. What is the missing distance in metres?
35. 35.Which of these happens in the Create step? (a) make it better, retest (b) make a prototype (c) brainstorm many ideas (d) list the materials
36. 36.📐 On a plan, 1 cm stands for 5 m. A real bridge is 75 m long. How long is it on the plan, in centimetres?
37. 37.⚖️ Which class of lever is a pair of tweezers? (a) class 1 (b) class 2 (c) class 3
38. 38.🔧 Which tool would you use to make a hole in wood? (a) a spirit level (b) a spanner (c) a hand drill (d) a screwdriver
39. 39.🔺 A beam bends under a load. Its top side is … (a) stretched (tension) (b) not affected (c) floating (d) squeezed (compression)
40. 40.True or false: kicking a football is a push. (a) True (b) False

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