Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 954 · 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 of these is a lever? (a) a knife edge (b) a claw hammer on a nail (c) a crane hook block (d) a wheelchair ramp
2. 2.🏋️ A machine lifts a load of 750 N when you push with 150 N. What is its mechanical advantage (MA)?
3. 3.True or false: pulling a cart is a pull. (a) False (b) True
4. 4.📋 For a model bridge challenge, is “use at most 20 straws” a constraint or a criterion? (a) a constraint (b) a criterion
5. 5.True or false: to wear safety goggles is safe. (a) True (b) False
6. 6.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) using a heavy roof (c) using a light roof (d) fitting rubber base pads
7. 7.🔄 After testing, a design does not work well. What comes next? (a) Ask (b) Imagine (c) Improve (d) give up
8. 8.⚖️ A lever bar balances. The load is 600 N at 30 cm from the fulcrum. The effort is 300 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
9. 9.Which of these uses an arch? (a) an electric pylon (b) an old stone bridge (c) a bicycle frame (d) a crane arm
10. 10.What does the builder do? (a) writes down results (b) keeps the team on track (c) collects the supplies (d) cuts and joins parts
11. 11.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
12. 12.♻️ Which is the BEST order to think about waste? (a) recycle, reuse, reduce (b) reuse, recycle, reduce (c) burn, bury, forget (d) reduce, reuse, recycle
13. 13.🤝 Why do engineers work in teams? (a) to finish nothing (b) to work alone (c) to argue more (d) many skills and ideas
14. 14.📐 On a plan, 1 cm stands for 10 m. A wall is 5 cm long on the plan. How long is the real wall, in metres?
15. 15.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a wooden plank 2 N, a carpet 3 N, sandpaper 6 N, a glass sheet 1 N. Which surface gave the most friction? (a) a glass sheet (b) a wooden plank (c) a carpet (d) sandpaper
16. 16.⚖️ Which class of lever is a crowbar? (a) class 3 (b) class 1 (c) class 2
17. 17.🪝 More rope sections holding a load means … (a) no change (b) the load floats (c) more effort needed (d) less effort needed
18. 18.Which of these is an arch bridge? (a) a flat deck on piers (b) a rope bridge in hills (c) stones squeezed together (d) cables tied down at ends
19. 19.What does the builder do? (a) runs the tests (b) keeps the team on track (c) puts the model together (d) shares out the jobs
20. 20.🔍 Which is the odd one out? (a) a banyan tree (b) a ceiling fan (c) a satellite (d) a mobile phone
21. 21.⚖️ A seesaw balances. Zoya (? N) sits 1 m from the pivot on one side; Kabir (140 N) sits 4 m from the pivot on the other side. What is the missing weight in newtons?
22. 22.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 20 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 150 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
23. 23.🤝 Is it good or poor teamwork to ignore the team plan? (a) poor teamwork (b) good teamwork
24. 24.🪝 A pulley system lifts a 520 N load with an effort of 260 N. What is its mechanical advantage (MA)?
25. 25.🌉 Which bridge type: “the longest spans of all”? (a) suspension bridge (b) arch bridge (c) beam bridge
26. 26.📋 Your team’s budget is ₹23. You must buy one roll of tape for ₹5. Straws cost ₹1 each. What is the greatest number of straws you can buy?
27. 27.🔄 Which design-process step is it to define the problem? (a) Test (b) Improve (c) Imagine (d) Ask
28. 28.True or false: to change only one thing is poor testing. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) a wheel on ball bearings (b) skating on ice (c) a smooth steel slide (d) a rough doormat
30. 30.Which job is a tape measure for? (a) grip and bend wire (b) measure a long length (c) tighten a nut (d) check a shelf is level
31. 31.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
32. 32.🤝 How do engineers share a design with others? (a) only talking fast (b) no drawings at all (c) secret notes (d) clear labelled sketches
33. 33.Which of these is a suspension bridge? (a) good for short gaps (b) a curve under the deck (c) tall towers hold cables (d) a flat deck on piers
34. 34.Which of these is recycle (make new things)? (a) give old books away (b) print on both sides (c) melt glass into new jars (d) use a jar as a pen stand
35. 35.Which of these is in tension (pulled)? (a) a stone in an arch (b) a suspension cable (c) a table leg (d) a brick at a wall base
36. 36.⚙️ How many simple machines are there in the usual list? (a) 3 (b) 12 (c) 10 (d) 6
37. 37.🔍 Which is the odd one out? (a) brass (b) graphite (c) plastic (d) aluminium
38. 38.📋 For a model bridge challenge, is “be under 30 cm tall” a constraint or a criterion? (a) a criterion (b) a constraint
39. 39.Which of these is found in nature? (a) a ceiling fan (b) a rainbow (c) a dam (d) a bridge
40. 40.What does the tester do? (a) tracks what is used up (b) keeps the design notes (c) puts the model together (d) checks the goals are met

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