Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 350 · 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 property matters most for a car seat belt? (a) heat insulator (b) transparent (c) flexible (d) waterproof
2. 2.True or false: “use at most 20 straws” is a constraint (a limit). (a) True (b) False
3. 3.🔍 Which is the odd one out? (a) the tip of a nail (b) a door stopper (c) a water tap handle (d) an axe blade
4. 4.💪 Which force pulls everything towards the Earth? (a) friction (b) gravity (c) wind (d) magnetism
5. 5.🤝 In a design team, who puts the model together? (a) builder (b) team leader (c) materials manager (d) tester
6. 6.Which job does a computer engineer do? (a) runs a fertiliser plant (b) designs satellites (c) builds a website (d) wires a new building
7. 7.True or false: to agree before changing is poor teamwork. (a) True (b) False
8. 8.📋 For a model bridge challenge, is “use at most 20 straws” a constraint or a criterion? (a) a criterion (b) a constraint
9. 9.True or false: a tunnel helps people reach a top floor fast. (a) True (b) False
10. 10.⚖️ On a seesaw, a heavier child should sit … (a) farther from the pivot (b) anywhere (c) on the pivot (d) closer to the pivot
11. 11.🏋️ Pushing a crate 5 m took 250 J of work. What force was used, in newtons?
12. 12.⚙️ Which simple machine is a well-bucket rope wheel? (a) screw (b) wheel and axle (c) wedge (d) pulley
13. 13.📐 On a plan, 1 cm stands for 2 m. A real bridge is 18 m long. How long is it on the plan, in centimetres?
14. 14.🤝 A team of 4 shares 8 equal jobs fairly. Each job takes 9 minutes. How many minutes does each person work?
15. 15.Which of these is in compression (pushed)? (a) a crane lifting cable (b) a tug of war rope (c) a stretched rubber band (d) a pillar under a roof
16. 16.🔍 Which is the odd one out? (a) powder on a carrom board (b) a smooth steel slide (c) sand on a slippery path (d) skating on ice
17. 17.📐 Why do engineers use scale drawings? (a) to hide sizes (b) big things fit on paper (c) to make them pretty (d) to save ink only
18. 18.⚙️ Which simple machine is a flagpole rope wheel? (a) wheel and axle (b) inclined plane (c) screw (d) pulley
19. 19.True or false: a knife edge is a screw. (a) True (b) False
20. 20.🧪 A paper bridge was tested three times. It held 320 g, 290 g and 320 g. What is the mean (average) load it held, in grams?
21. 21.🧪 Why repeat a test three times? (a) the first is wrong (b) it looks busy (c) to get reliable results (d) to use more paper
22. 22.⚙️ A screw is really … (a) a tiny pulley (b) a ramp wrapped round (c) a bent lever (d) a kind of wheel
23. 23.⚖️ A seesaw balances. Zoya (340 N) sits ? m from the pivot on one side; Asha (340 N) sits 2 m from the pivot on the other side. What is the missing distance in metres?
24. 24.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 3 N, a glass sheet 4 N, a wooden plank 6 N, a carpet 9 N. Which surface gave the least friction? (a) a wooden plank (b) a carpet (c) ice (d) a glass sheet
25. 25.🏋️ A force of 380 N pushes a cart 5 m along the floor. How much work is done, in joules?
26. 26.💪 A bag has a mass of 60 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
27. 27.Which of these is found in nature? (a) a dam (b) a ceiling fan (c) a seashell (d) a satellite
28. 28.📋 Your team’s budget is ₹41. You must buy one roll of tape for ₹15. Straws cost ₹1 each. What is the greatest number of straws you can buy?
29. 29.Which job does an electrical engineer do? (a) designs satellites (b) designs electric motors (c) designs a gearbox (d) plans a dam
30. 30.💪 Which force is at work: rubbing hands warms them? (a) muscular force (b) friction (c) magnetic force (d) gravity
31. 31.🪢 Tension or compression: a brick at a wall base? (a) compression (b) tension
32. 32.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) strengthen the weak part (b) build it with straws (c) choose and draw one (d) read the challenge rules
33. 33.🌉 In a stone arch bridge, the stones are in … (a) tension (b) friction (c) compression (d) no force
34. 34.🪢 A stage stands on 6 identical legs and each leg is squeezed with 125 N. What is the total load on the stage, in newtons?
35. 35.⚖️ A lever bar balances. The load is 700 N at 40 cm from the fulcrum. The effort is ? N at 70 cm from the fulcrum on the other side. What is the missing force in newtons?
36. 36.🪝 A pulley system has 2 rope sections holding up the load. To lift the load by 1 m, how many metres of rope must you pull?
37. 37.True or false: a bridge pier is in compression (pushed). (a) False (b) True
38. 38.♻️ A project report has 76 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
39. 39.🔺 Which strong shape does a curved stone doorway use? (a) arch (b) beam (c) dome (d) triangle
40. 40.⚖️ A lever bar balances. The load is ? N at 20 cm from the fulcrum. The effort is 40 N at 30 cm from the fulcrum on the other side. What is the missing force in newtons?

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