Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 997 · 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.What does the team leader do? (a) cuts and joins parts (b) shares out the jobs (c) keeps the design notes (d) writes down results
2. 2.🧑‍🔧 Which kind of engineer refines crude oil? (a) chemical (b) civil (c) aerospace (d) computer
3. 3.True or false: a screw jack is a screw. (a) False (b) True
4. 4.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) sketch three ideas (b) choose and draw one (c) strengthen the weak part (d) load it with coins
5. 5.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) copper (c) aluminium (d) iron
6. 6.Which job is pliers for? (a) smooth a rough edge (b) drive in a nail (c) grip and bend wire (d) measure a long length
7. 7.⚖️ A lever bar balances. The load is 40 N at 10 cm from the fulcrum. The effort is ? N at 20 cm from the fulcrum on the other side. What is the missing force in newtons?
8. 8.🤝 A team of 2 shares 6 equal jobs fairly. Each job takes 10 minutes. How many minutes does each person work?
9. 9.🔍 Which is the odd one out? (a) aluminium (b) plastic (c) rubber (d) cotton cloth
10. 10.🪢 A sign weighing 900 N hangs from 6 identical vertical ropes that share the load equally. What is the tension in each rope, in newtons?
11. 11.📐 How many millimetres are in 1 centimetre? (a) 1000 (b) 10 (c) 5 (d) 100
12. 12.True or false: a suspension cable is in tension (pulled). (a) False (b) True
13. 13.📐 On a plan, 1 cm stands for 10 m. A real bridge is 30 m long. How long is it on the plan, in centimetres?
14. 14.🧪 The first prototype held 130 g. After the team improved it, the new prototype held 220 g. How many more grams did it hold?
15. 15.🪝 Fixed or movable pulley: which one is on a flagpole top? (a) a movable pulley (b) a fixed pulley
16. 16.📐 A model car is drawn so that 1 cm stands for 20 cm. The car is 5 cm long in the drawing. How long is the real car, in centimetres?
17. 17.⚖️ A lever bar balances. The load is ? N at 10 cm from the fulcrum. The effort is 60 N at 80 cm from the fulcrum on the other side. What is the missing force in newtons?
18. 18.🔍 Which is the odd one out? (a) skating on ice (b) chalk on a gym bar (c) powder on a carrom board (d) a smooth steel slide
19. 19.🛠️ Is a coral reef made by engineers or found in nature? (a) made by engineers (b) found in nature
20. 20.🛞 Is friction helpful or a problem here: brakes stopping a cycle? (a) a problem (b) helpful
21. 21.⚖️ In a class 3 lever, what is in the middle? (a) the pulley (b) the fulcrum (c) the effort (d) the load
22. 22.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
23. 23.True or false: sand on a slippery path gives more friction. (a) True (b) False
24. 24.🔺 A flat frame has 7 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
25. 25.🔍 Which is the odd one out? (a) raising heavy tanks high (b) adding cross bracing (c) leaving out steel bars (d) building tall and narrow
26. 26.🏋️ A force of 260 N pushes a cart 1 m along the floor. How much work is done, in joules?
27. 27.🤝 Is it good or poor teamwork to hide a mistake? (a) good teamwork (b) poor teamwork
28. 28.⚖️ Going along a lever from one end to the other, the order is: load, effort, fulcrum. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
29. 29.♻️ A sustainable design … (a) uses the most plastic (b) protects the future (c) wastes water (d) lasts one day
30. 30.📐 On a plan, 1 cm stands for 5 m. A wall is 10 cm long on the plan. How long is the real wall, in metres?
31. 31.⚙️ A screw is really … (a) a kind of wheel (b) a ramp wrapped round (c) a bent lever (d) a tiny pulley
32. 32.📋 Your team’s budget is ₹36. You must buy one roll of tape for ₹10. Straws cost ₹3 each. What is the greatest number of straws you can buy?
33. 33.🤝 Is it good or poor teamwork to do all the work alone? (a) good teamwork (b) poor teamwork
34. 34.📐 A beam is 950 cm long. How long is it in metres? =
35. 35.⚖️ A seesaw balances. Arjun (380 N) sits 1 m from the pivot on one side; Kabir (? N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?
36. 36.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
37. 37.Which need does a water filter meet? (a) store water for summer (b) make water safe to drink (c) see very tiny things (d) carry many people far
38. 38.Which job is a saw for? (a) smooth a rough edge (b) cut a wooden plank (c) tighten a nut (d) measure a long length
39. 39.🏋️ A force of 390 N pushes a cart 4 m along the floor. How much work is done, in joules?
40. 40.🔧 Which tool would you use to tighten a nut? (a) a saw (b) a tape measure (c) sandpaper (d) a spanner

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