Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 94 · 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 a design team, who runs the tests? (a) materials manager (b) builder (c) tester (d) team leader
2. 2.🧑‍🔧 Which branch of engineering uses engineering to help doctors? (a) biomedical (b) electrical (c) aerospace (d) civil
3. 3.⚙️ Which simple machine is an axe blade? (a) wedge (b) wheel and axle (c) lever (d) screw
4. 4.📋 Your team’s budget is ₹72. You must buy one roll of tape for ₹15. Straws cost ₹3 each. What is the greatest number of straws you can buy?
5. 5.🌉 Which bridge type: “cables tied down at ends”? (a) beam bridge (b) suspension bridge (c) arch bridge
6. 6.Which of these happens in the Ask step? (a) dream up possible fixes (b) measure its performance (c) ask who will use it (d) fix the weak part
7. 7.🔍 Which is the odd one out? (a) hold up 500 g (b) carry 10 coins (c) keep ice for 1 hour (d) fit on a school desk
8. 8.Which of these uses a beam? (a) a bicycle frame (b) a lintel over a door (c) a planetarium roof (d) a round palace roof
9. 9.🪝 More rope sections holding a load means … (a) no change (b) more effort needed (c) less effort needed (d) the load floats
10. 10.True or false: to record every result is poor testing. (a) True (b) False
11. 11.🔍 Which is the odd one out? (a) spend at most ₹100 (b) finish in 40 minutes (c) hold up 500 g (d) use only paper and tape
12. 12.Which of these is found in nature? (a) a lift (b) a mountain (c) a bicycle (d) a satellite
13. 13.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
14. 14.⚖️ Going along a lever from one end to the other, the order is: effort, fulcrum, load. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
15. 15.Which of these uses an arch? (a) an old stone bridge (b) a plank over a drain (c) a bicycle frame (d) a lintel over a door
16. 16.♻️ Is diesel a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
17. 17.📐 A model car is drawn so that 1 cm stands for 40 cm. The car is 6 cm long in the drawing. How long is the real car, in centimetres?
18. 18.🔺 A frame shaped like a square is made of straws joined by loose pins, with 0 corner-to-corner braces. Is it rigid or wobbly? (a) wobbly (b) rigid
19. 19.True or false: a pair of tweezers is a class 1 lever (fulcrum in the middle). (a) False (b) True
20. 20.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 200 g. How many more grams did it hold?
21. 21.🔺 One side of a straw bridge is a row of 10 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
22. 22.📐 On a plan, 1 cm stands for 10 m. A real bridge is 90 m long. How long is it on the plan, in centimetres?
23. 23.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
24. 24.📋 A design meets every criterion but costs more than the budget. Is it acceptable? (a) yes, it works (b) only if it is red (c) yes, always (d) no, it breaks a limit
25. 25.🤝 In a design team, who cuts and joins parts? (a) tester (b) builder (c) team leader (d) materials manager
26. 26.🛠️ Engineers use maths and which other subject the most? (a) science (b) music (c) dance (d) cooking
27. 27.⚖️ A seesaw balances. Arjun (150 N) sits ? m from the pivot on one side; Kabir (300 N) sits 1 m from the pivot on the other side. What is the missing distance in metres?
28. 28.True or false: a wheelbarrow is a class 3 lever (effort in the middle). (a) False (b) True
29. 29.⚙️ Most simple machines make work easier by letting us … (a) use a smaller force (b) stop all friction (c) switch off gravity (d) make new energy
30. 30.🪝 Fixed or movable pulley: which one rises with the load? (a) a movable pulley (b) a fixed pulley
31. 31.🪝 A pulley system has 3 rope sections holding up the load. To lift the load by 6 m, how many metres of rope must you pull?
32. 32.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
33. 33.📐 On a plan, 1 cm stands for 20 m. A real bridge is 380 m long. How long is it on the plan, in centimetres?
34. 34.🧪 A paper bridge was tested three times. It held 190 g, 140 g and 120 g. What is the mean (average) load it held, in grams?
35. 35.📐 On a plan, 1 cm stands for 5 m. A real bridge is 70 m long. How long is it on the plan, in centimetres?
36. 36.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
37. 37.True or false: to repeat each test is poor testing. (a) True (b) False
38. 38.True or false: to hide a failed test is good testing. (a) False (b) True
39. 39.Which of these is in compression (pushed)? (a) a hanging lamp chain (b) a tall bridge tower (c) a crane lifting cable (d) a tow rope on a car
40. 40.📐 On a plan, 1 cm stands for 20 m. A wall is 10 cm long on the plan. How long is the real wall, in metres?

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