Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 366 · 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.🏋️ In which unit is work measured? (a) newton (N) (b) metre (m) (c) watt hour (d) joule (J)
2. 2.True or false: natural gas is a renewable energy source. (a) True (b) False
3. 3.🪝 A bucket weighing 490 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
4. 4.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
5. 5.🔍 Which is the odd one out? (a) keeping a simple shape (b) adding steel to concrete (c) leaving out steel bars (d) using flexible joints
6. 6.⚖️ A seesaw balances. Asha (180 N) sits ? m from the pivot on one side; Ravi (720 N) sits 1 m from the pivot on the other side. What is the missing distance in metres?
7. 7.📐 A model car is drawn so that 1 cm stands for 20 cm. The car is 11 cm long in the drawing. How long is the real car, in centimetres?
8. 8.🧪 What is a prototype? (a) the final product (b) an early test model (c) a sales poster (d) a broken part
9. 9.⚖️ On a seesaw, a heavier child should sit … (a) farther from the pivot (b) on the pivot (c) anywhere (d) closer to the pivot
10. 10.🪢 A sign weighing 120 N hangs from 4 identical vertical ropes that share the load equally. What is the tension in each rope, in newtons?
11. 11.🪝 Fixed or movable pulley: which one needs effort = load? (a) a fixed pulley (b) a movable pulley
12. 12.What does the recorder do? (a) keeps the team on track (b) tracks what is used up (c) keeps the design notes (d) collects the supplies
13. 13.🛞 More or less friction: a tyre with deep treads? (a) less friction (b) more friction
14. 14.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
15. 15.🛠️ Is a lift made by engineers or found in nature? (a) made by engineers (b) found in nature
16. 16.🏋️ A force of 210 N pushes a cart 1 m along the floor. How much work is done, in joules?
17. 17.⚖️ Going along a lever from one end to the other, the order is: effort, load, fulcrum. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
18. 18.True or false: a tug of war rope is in tension (pulled). (a) False (b) True
19. 19.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
20. 20.🪢 Which material is good in tension but useless in compression? (a) a stone (b) a rope (c) a concrete block (d) a brick
21. 21.True or false: a river is made by engineers. (a) True (b) False
22. 22.Which need does a train meet? (a) talk to someone far away (b) make power from sunlight (c) make water safe to drink (d) carry many people far
23. 23.🤝 How do engineers share a design with others? (a) no drawings at all (b) only talking fast (c) clear labelled sketches (d) secret notes
24. 24.🪝 A well winch has a handle (wheel) of radius 8 cm turning an axle of radius 2 cm. What is its mechanical advantage (MA)?
25. 25.🔍 Which is the odd one out? (a) adding cross bracing (b) adding steel to concrete (c) using flexible joints (d) building tall and narrow
26. 26.True or false: “a log across a stream” is a suspension bridge. (a) False (b) True
27. 27.🧑‍🔧 Which kind of engineer designs car engines? (a) civil (b) mechanical (c) biomedical (d) electrical
28. 28.True or false: a flagpole rope wheel is a pulley. (a) False (b) True
29. 29.True or false: a playground slide is an inclined plane. (a) False (b) True
30. 30.Which of these is reuse (use again)? (a) print on both sides (b) melt glass into new jars (c) plant in old tyres (d) carry a cloth bag
31. 31.Which of these is in compression (pushed)? (a) a temple column (b) a swing chain (c) a tow rope on a car (d) a tug of war rope
32. 32.🪝 A pulley system has 1 rope section holding up the load. To lift the load by 3 m, how many metres of rope must you pull?
33. 33.🔍 Which is the odd one out? (a) cotton cloth (b) glass (c) clay pottery (d) steel
34. 34.🔄 Which design-process step is it to think of wild ideas? (a) Create (b) Plan (c) Imagine (d) Ask
35. 35.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
36. 36.🤝 A team plans for 60 minutes, builds for 10 minutes and then tests for 5 minutes, one after another. How many minutes is that in all?
37. 37.🏋️ A 14 kg box is lifted straight up by 4 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
38. 38.🛞 How can we reduce friction in a machine? (a) add sand (b) oil the moving parts (c) make parts rough (d) press parts harder
39. 39.🦺 In the workshop, is it safe to touch a hot glue tip? (a) not safe (b) safe
40. 40.🧱 Which property matters most for a car seat belt? (a) transparent (b) flexible (c) waterproof (d) heat insulator

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