Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 390 · 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.Which job does a civil engineer do? (a) lays out a highway (b) designs school networks (c) builds rockets (d) designs power lines
2. 2.🧪 A paper bridge was tested three times. It held 280 g, 150 g and 200 g. What is the mean (average) load it held, in grams?
3. 3.🔢 To follow the engineering design process, which comes first: “Ask” or “Plan”? (a) Ask (b) Plan
4. 4.True or false: an umbrella cover needs a heat insulator. (a) True (b) False
5. 5.🤝 Why do engineers work in teams? (a) to work alone (b) many skills and ideas (c) to finish nothing (d) to argue more
6. 6.🪢 Compression is a force that … (a) pulls or stretches (b) pushes or squeezes (c) cools things (d) makes light
7. 7.🏋️ A machine lifts a load of 120 N when you push with 20 N. What is its mechanical advantage (MA)?
8. 8.🔍 Which is the odd one out? (a) a wheel on ball bearings (b) a wet tiled floor (c) oil on a squeaky hinge (d) a grippy rubber sole
9. 9.🔍 Which is the odd one out? (a) oil on a squeaky hinge (b) powder on a carrom board (c) a smooth steel slide (d) a box pushed on carpet
10. 10.Which of these is in tension (pulled)? (a) a table leg (b) a brick at a wall base (c) a hanging lamp chain (d) a squeezed spring
11. 11.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) biomedical (b) computer (c) civil (d) chemical
12. 12.🪝 Fixed or movable pulley: which one needs effort = load? (a) a movable pulley (b) a fixed pulley
13. 13.📐 A model car is drawn so that 1 cm stands for 20 cm. The car is 9 cm long in the drawing. How long is the real car, in centimetres?
14. 14.📋 For a model bridge challenge, is “lift a cup of water” a constraint or a criterion? (a) a criterion (b) a constraint
15. 15.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: sandpaper 11 N, ice 1 N, a glass sheet 5 N, a wooden plank 7 N. Which surface gave the most friction? (a) ice (b) sandpaper (c) a glass sheet (d) a wooden plank
16. 16.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
17. 17.🏋️ A machine lifts a load of 600 N when you push with 100 N. What is its mechanical advantage (MA)?
18. 18.⚙️ Which simple machine is a crane hook block? (a) pulley (b) wedge (c) screw (d) lever
19. 19.🔍 Which is the odd one out? (a) fitting rubber base pads (b) adding cross bracing (c) having a wide base (d) raising heavy tanks high
20. 20.🛞 Is friction helpful or a problem here: gripping a cricket bat? (a) helpful (b) a problem
21. 21.📋 For a model bridge challenge, is “finish in 40 minutes” a constraint or a criterion? (a) a criterion (b) a constraint
22. 22.⚖️ A seesaw balances. Asha (380 N) sits 4 m from the pivot on one side; Meena (760 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
23. 23.What does the materials manager do? (a) tracks what is used up (b) keeps the team on track (c) checks the goals are met (d) cuts and joins parts
24. 24.⚖️ Turning effect = force × … (a) distance from fulcrum (b) time taken (c) mass of fulcrum (d) colour of bar
25. 25.Which of these uses a dome? (a) an old stone bridge (b) a lintel over a door (c) an igloo (d) a plank over a drain
26. 26.True or false: to check a shelf is level, use pliers. (a) True (b) False
27. 27.💪 A force is a … (a) type of sound (b) unit of time (c) kind of colour (d) push or a pull
28. 28.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
29. 29.📋 Your team’s budget is ₹53. You must buy one roll of tape for ₹10. Straws cost ₹3 each. What is the greatest number of straws you can buy?
30. 30.🧑‍🔧 Which kind of engineer plans a space mission? (a) biomedical (b) aerospace (c) chemical (d) computer
31. 31.🔍 Which is the odd one out? (a) having a wide base (b) stacking loose bricks (c) keeping a simple shape (d) using flexible joints
32. 32.🏋️ A 13 kg box is lifted straight up by 2 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
33. 33.📐 A beam is 580 cm long. How long is it in metres? =
34. 34.True or false: to change only one thing is good testing. (a) False (b) True
35. 35.🏋️ Pushing a crate 2 m took 80 J of work. What force was used, in newtons?
36. 36.🛠️ Engineers use maths and which other subject the most? (a) science (b) dance (c) cooking (d) music
37. 37.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) one (c) two (d) none
38. 38.True or false: a movable pulley rises with the load. (a) False (b) True
39. 39.Which job is pliers for? (a) check a shelf is level (b) grip and bend wire (c) drive in a nail (d) smooth a rough edge
40. 40.📋 Criterion: the model bridge must hold at least 200 g. In the test it held 150 g. Does it meet the criterion? (a) Yes (b) No

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