Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 627 · 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.⚖️ Going along a lever from one end to the other, the order is: fulcrum, load, effort. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
2. 2.♻️ Reduce, reuse or recycle: reuse gift paper? (a) reuse (b) reduce (c) recycle
3. 3.📐 On a plan, 1 cm stands for 20 m. A wall is 16 cm long on the plan. How long is the real wall, in metres?
4. 4.True or false: a bridge helps people cross a wide river. (a) False (b) True
5. 5.Which job does a biomedical engineer do? (a) makes medicines in bulk (b) designs car engines (c) designs a flyover (d) designs knee implants
6. 6.🔍 Which is the odd one out? (a) a ceiling fan (b) a lift (c) a seashell (d) a satellite
7. 7.Which of these uses a dome? (a) a shelf on two brackets (b) an electric pylon (c) a planetarium roof (d) a curved stone doorway
8. 8.📐 A model car is drawn so that 1 cm stands for 30 cm. The car is 13 cm long in the drawing. How long is the real car, in centimetres?
9. 9.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
10. 10.🔍 Which is the odd one out? (a) cut towards your hand (b) put tools back after use (c) leave tools on the floor (d) use a cracked tool
11. 11.Which of these happens in the Improve step? (a) draw a labelled diagram (b) measure its performance (c) define the problem (d) fix the weak part
12. 12.Which of these is a suspension bridge? (a) a log across a stream (b) the simplest bridge (c) good for short gaps (d) deck hangs from cables
13. 13.🏋️ A force of 330 N did 990 J of work. How many metres did the object move?
14. 14.True or false: a table leg is in tension (pulled). (a) False (b) True
15. 15.🪝 Fixed or movable pulley: which one hangs on the rope loop? (a) a movable pulley (b) a fixed pulley
16. 16.Which need does a dam meet? (a) talk to someone far away (b) cross a wide river (c) store water for summer (d) see very tiny things
17. 17.⚖️ A seesaw balances. Kabir (? N) sits 2 m from the pivot on one side; Meena (240 N) sits 1 m from the pivot on the other side. What is the missing weight in newtons?
18. 18.🧪 A paper bridge was tested three times. It held 250 g, 240 g and 230 g. What is the mean (average) load it held, in grams?
19. 19.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 2 N, a glass sheet 3 N, a wooden plank 6 N, a carpet 7 N. Which surface gave the least friction? (a) ice (b) a wooden plank (c) a glass sheet (d) a carpet
20. 20.True or false: a movable pulley stays in one place. (a) False (b) True
21. 21.🏋️ A force of 180 N pushes a cart 5 m along the floor. How much work is done, in joules?
22. 22.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) plastic (d) brass
23. 23.Which of these needs a waterproof material? (a) an oven glove (b) a car seat belt (c) a car windscreen (d) a raincoat
24. 24.🔄 What is the FIRST step of the engineering design process? (a) Test (b) Ask (c) Create (d) Improve
25. 25.True or false: a seesaw is a class 1 lever (fulcrum in the middle). (a) True (b) False
26. 26.🪝 A winch has a wheel of radius 9 cm and an axle of radius 3 cm. What effort on the wheel lifts a 300 N bucket on the axle, in newtons? (ideal)
27. 27.Which job is a screwdriver for? (a) turn a screw (b) tighten a nut (c) grip and bend wire (d) smooth a rough edge
28. 28.♻️ Reduce, reuse or recycle: buy less packaging? (a) recycle (b) reduce (c) reuse
29. 29.🏋️ A longer ramp to the same height needs … (a) less effort (b) more effort (c) no effort (d) the same effort
30. 30.📐 Why do engineers use scale drawings? (a) to hide sizes (b) to make them pretty (c) to save ink only (d) big things fit on paper
31. 31.🔢 To follow the engineering design process, what comes right after “Imagine”? (a) Plan (b) Ask (c) Test (d) Improve
32. 32.🧑‍🔧 Which kind of engineer designs satellites? (a) aerospace (b) mechanical (c) civil (d) biomedical
33. 33.⚖️ Which class of lever is a pair of scissors? (a) class 1 (b) class 2 (c) class 3
34. 34.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
35. 35.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
36. 36.⚖️ Which class of lever is a pair of kitchen tongs? (a) class 1 (b) class 2 (c) class 3
37. 37.🏋️ Pushing a crate 3 m took 1440 J of work. What force was used, in newtons?
38. 38.🧑‍🔧 Which branch of engineering designs machines with moving parts? (a) mechanical (b) biomedical (c) chemical (d) civil
39. 39.True or false: to measure a long length, use a hand drill. (a) True (b) False
40. 40.Which of these is in compression (pushed)? (a) a swing chain (b) a tug of war rope (c) a brick at a wall base (d) a stretched rubber band

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