Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 278 · 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 seesaw balances. Asha (570 N) sits ? m from the pivot on one side; Zoya (570 N) sits 3 m from the pivot on the other side. What is the missing distance in metres?
2. 2.♻️ A project report has 24 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
3. 3.📐 On a plan, 1 cm stands for 10 m. A wall is 11 cm long on the plan. How long is the real wall, in metres?
4. 4.♻️ Is wind a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
5. 5.🧑‍🔧 Which branch of engineering designs machines with moving parts? (a) chemical (b) civil (c) mechanical (d) biomedical
6. 6.True or false: to carry scissors closed is safe. (a) False (b) True
7. 7.⚖️ Along a straight bar, measured from the left end, the effort is at 10 cm, the fulcrum at 60 cm and the load at 20 cm. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
8. 8.Which of these happens in the Test step? (a) define the problem (b) ask who will use it (c) redesign after testing (d) check it against goals
9. 9.Which of these is a screw? (a) a flagpole rope wheel (b) a chisel (c) a truck loading ramp (d) a jar lid
10. 10.🛞 More or less friction: skating on ice? (a) less friction (b) more friction
11. 11.True or false: a bicycle frame uses triangles. (a) False (b) True
12. 12.🔄 In which step do engineers draw a labelled diagram? (a) Test (b) Ask (c) Plan (d) Improve
13. 13.🧑‍🔧 Which kind of engineer writes app software? (a) computer (b) chemical (c) electrical (d) mechanical
14. 14.🤝 In a design team, who keeps the team on track? (a) recorder (b) materials manager (c) team leader (d) builder
15. 15.🧪 Three prototype bridges were tested with the same method. Design A held 320 g, design B held 220 g and design C held 270 g. Which design was the weakest? (a) design A (b) design B (c) design C
16. 16.Which of these is an arch bridge? (a) stones squeezed together (b) the simplest bridge (c) a log across a stream (d) a rope bridge in hills
17. 17.🤝 A team plans for 60 minutes, builds for 45 minutes and then tests for 25 minutes, one after another. How many minutes is that in all?
18. 18.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a wooden plank 5 N, a carpet 8 N, ice 1 N, a glass sheet 3 N. Which surface gave the most friction? (a) a carpet (b) ice (c) a wooden plank (d) a glass sheet
19. 19.🤝 In a design team, who shares out the jobs? (a) materials manager (b) team leader (c) tester (d) builder
20. 20.🪢 A beam rests on two supports and is pressed down in the middle. Its bottom edge is … (a) not affected (b) squeezed (compression) (c) twisted (d) stretched (tension)
21. 21.True or false: to share the work fairly is good teamwork. (a) True (b) False
22. 22.🧪 Three prototype bridges were tested with the same method. Design A held 320 g, design B held 270 g and design C held 370 g. Which design was the weakest? (a) design B (b) design A (c) design C
23. 23.🧪 A paper bridge was tested three times. It held 270 g, 220 g and 170 g. What is the mean (average) load it held, in grams?
24. 24.🪢 Tension is a force that … (a) pushes or squeezes (b) pulls or stretches (c) turns things (d) heats things
25. 25.Which of these is caused by gravity? (a) lifting a school bag (b) a magnet picks up pins (c) an apple falls down (d) brakes stop a bicycle
26. 26.True or false: to find the limits is the Plan step. (a) False (b) True
27. 27.Which need does a microscope meet? (a) reach a top floor fast (b) store water for summer (c) carry many people far (d) see very tiny things
28. 28.🪝 A pulley system lifts a 690 N load with an effort of 230 N. What is its mechanical advantage (MA)?
29. 29.♻️ Which energy source will never run out? (a) coal (b) petrol (c) diesel (d) sunlight
30. 30.🌉 A beam bridge is 550 m long. Piers split it into equal spans of 50 m. How many spans are there?
31. 31.True or false: an electric pylon uses a dome. (a) False (b) True
32. 32.🛞 Rubbing your hands fast makes them … (a) wet (b) warm (c) magnetic (d) cold
33. 33.🤝 How do engineers share a design with others? (a) secret notes (b) only talking fast (c) clear labelled sketches (d) no drawings at all
34. 34.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a wooden plank 3 N, a carpet 6 N, sandpaper 9 N, ice 2 N. How many newtons more were needed on sandpaper than on ice?
35. 35.🔺 A frame shaped like a square is made of straws joined by loose pins, with 1 corner-to-corner brace. Is it rigid or wobbly? (a) rigid (b) wobbly
36. 36.🤝 In a design team, who keeps the design notes? (a) recorder (b) builder (c) tester (d) team leader
37. 37.🛠️ People need to keep food fresh longer. Which invention helps? (a) a solar panel (b) a dam (c) a fridge (d) a lift
38. 38.🔧 Which tool would you use to measure a long length? (a) a spirit level (b) a hammer (c) a tape measure (d) pliers
39. 39.🪝 Fixed or movable pulley: which one rises with the load? (a) a movable pulley (b) a fixed pulley
40. 40.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe

Free engineering lessons, practice and worksheets at talentjr.in/engineering-for-kids