Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 262 · 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.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
2. 2.🪝 Fixed or movable pulley: which one rises with the load? (a) a fixed pulley (b) a movable pulley
3. 3.True or false: an aerospace engineer designs factory machines. (a) True (b) False
4. 4.🤝 In a design team, who puts the model together? (a) team leader (b) recorder (c) materials manager (d) builder
5. 5.🌉 In a stone arch bridge, the stones are in … (a) no force (b) tension (c) compression (d) friction
6. 6.📐 On a plan, 1 cm stands for 5 m. A wall is 2 cm long on the plan. How long is the real wall, in metres?
7. 7.🧑‍🔧 Which branch of engineering designs machines with moving parts? (a) biomedical (b) mechanical (c) civil (d) chemical
8. 8.🦺 In the workshop, is it safe to run while holding tools? (a) safe (b) not safe
9. 9.🌉 A beam bridge 140 m long is split by piers into 4 equal spans. How long is each span, in metres?
10. 10.True or false: “fit on a school desk” is a criterion (a goal). (a) False (b) True
11. 11.🧑‍🔧 Which kind of engineer designs knee implants? (a) biomedical (b) chemical (c) mechanical (d) electrical
12. 12.🔍 Which is the odd one out? (a) having a wide base (b) adding cross bracing (c) stacking loose bricks (d) using flexible joints
13. 13.⚖️ Along a straight bar, measured from the left end, the effort is at 20 cm, the fulcrum at 80 cm and the load at 50 cm. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
14. 14.🏋️ A machine lifts a load of 350 N when you push with 70 N. What is its mechanical advantage (MA)?
15. 15.🔢 To follow the engineering design process, which is the FIRST step? (a) Improve (b) Plan (c) Test (d) Ask
16. 16.🏋️ A smooth ramp is 6 m long and rises 3 m. What effort pushes a 1400 N box up it, in newtons? (ideal ramp, no friction)
17. 17.🔧 Which tool would you use to cut a wooden plank? (a) a hammer (b) a protractor (c) a saw (d) a tape measure
18. 18.📐 How many centimetres are in 1 metre? (a) 1000 (b) 60 (c) 10 (d) 100
19. 19.🪝 Fixed or movable pulley: which one is on a flagpole top? (a) a movable pulley (b) a fixed pulley
20. 20.True or false: to draw a labelled diagram is the Improve step. (a) False (b) True
21. 21.⚖️ A seesaw balances. Arjun (340 N) sits ? m from the pivot on one side; Asha (170 N) sits 2 m from the pivot on the other side. What is the missing distance in metres?
22. 22.🛠️ People need to see very tiny things. Which invention helps? (a) a train (b) a microscope (c) a dam (d) a telephone
23. 23.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) load it with coins (b) read the challenge rules (c) strengthen the weak part (d) choose and draw one
24. 24.🏋️ Can a simple machine reduce the work done? (a) yes, always (b) yes, by half (c) no, work stays the same (d) only on Mondays
25. 25.Which of these is an arch bridge? (a) tall towers hold cables (b) the longest spans of all (c) a curve under the deck (d) the simplest bridge
26. 26.🔍 Which is the odd one out? (a) a wood screw (b) a bottle cap (c) a screw jack (d) a chisel
27. 27.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) strengthen the weak part (b) sketch three ideas (c) choose and draw one (d) load it with coins
28. 28.🧪 Three prototype bridges were tested with the same method. Design A held 100 g, design B held 200 g and design C held 150 g. Which design was the strongest? (a) design A (b) design C (c) design B
29. 29.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
30. 30.True or false: to check a shelf is level, use a spirit level. (a) False (b) True
31. 31.⚖️ A seesaw balances. Asha (? N) sits 1 m from the pivot on one side; Ravi (140 N) sits 1 m from the pivot on the other side. What is the missing weight in newtons?
32. 32.🔺 Which strong shape does an igloo use? (a) triangle (b) dome (c) beam (d) arch
33. 33.⚖️ Turning effect = force × … (a) time taken (b) colour of bar (c) mass of fulcrum (d) distance from fulcrum
34. 34.💪 Two children push a box to the right, one with 95 N and the other with 70 N. What is the net (total) force on the box, in newtons?
35. 35.⚖️ A lever bar balances. The load is ? N at 20 cm from the fulcrum. The effort is 80 N at 20 cm from the fulcrum on the other side. What is the missing force in newtons?
36. 36.📋 For a model bridge challenge, is “float for 1 minute” a constraint or a criterion? (a) a criterion (b) a constraint
37. 37.🧑‍🔧 Which branch of engineering works on aeroplanes and rockets? (a) aerospace (b) chemical (c) civil (d) computer
38. 38.🤝 A teammate’s idea seems odd. What should you do first? (a) laugh at it (b) listen and ask why (c) walk away (d) ignore it
39. 39.🧪 A paper bridge was tested three times. It held 390 g, 230 g and 310 g. What is the mean (average) load it held, in grams?
40. 40.Which of these is in tension (pulled)? (a) a tent guy rope (b) a table leg (c) a bridge pier (d) a temple column

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