Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 34 · 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 reuse (use again)? (a) fix a dripping tap (b) melt glass into new jars (c) buy less packaging (d) plant in old tyres
2. 2.💪 Which force pulls everything towards the Earth? (a) friction (b) wind (c) gravity (d) magnetism
3. 3.♻️ Is coal a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
4. 4.Which job is pliers for? (a) grip and bend wire (b) measure a long length (c) cut a wooden plank (d) turn a screw
5. 5.🦺 How should you carry scissors? (a) while running (b) points up, open (c) by the blades (d) points down, closed
6. 6.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) adding cross bracing (c) having a wide base (d) using a heavy roof
7. 7.🌉 A beam bridge 400 m long rests on the two river banks and on piers in between, making equal spans of 40 m. How many piers are there?
8. 8.📐 On a plan, 1 cm stands for 10 m. A real bridge is 190 m long. How long is it on the plan, in centimetres?
9. 9.True or false: to agree before changing is poor teamwork. (a) True (b) False
10. 10.📐 How many metres are in 1 kilometre? (a) 10 (b) 1000 (c) 100 (d) 10000
11. 11.Which of these needs a heat insulator? (a) a car seat belt (b) an umbrella cover (c) a roof sheet (d) a cooking pot handle
12. 12.📐 A beam is 410 cm long. How long is it in metres? =
13. 13.Which need does a train meet? (a) go through a mountain (b) keep food fresh longer (c) store water for summer (d) carry many people far
14. 14.⚖️ A lever bar balances. The load is ? N at 50 cm from the fulcrum. The effort is 150 N at 90 cm from the fulcrum on the other side. What is the missing force in newtons?
15. 15.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
16. 16.Which need does a water filter meet? (a) see very tiny things (b) go through a mountain (c) make water safe to drink (d) reach a top floor fast
17. 17.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
18. 18.🔍 Which is the odd one out? (a) a box pushed on carpet (b) a grippy rubber sole (c) chalk on a gym bar (d) skating on ice
19. 19.Which of these happens in the Ask step? (a) find the limits (b) make a prototype (c) measure its performance (d) check it against goals
20. 20.🛠️ A scientist asks “why does it happen?”. An engineer mostly asks … (a) who won the match? (b) what is for lunch? (c) how can we build it? (d) why is the sky blue?
21. 21.🔧 Which tool would you use to smooth a rough edge? (a) a saw (b) a tape measure (c) a spanner (d) sandpaper
22. 22.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) load it with coins (b) sketch three ideas (c) strengthen the weak part (d) choose and draw one
23. 23.True or false: an electrical engineer designs factory machines. (a) False (b) True
24. 24.🪢 Tension or compression: a brick at a wall base? (a) compression (b) tension
25. 25.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a glass sheet 4 N, a carpet 6 N, sandpaper 7 N, ice 3 N. Which surface gave the most friction? (a) a glass sheet (b) a carpet (c) ice (d) sandpaper
26. 26.🪝 A bucket weighing 170 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
27. 27.🤝 Is it good or poor teamwork to hide a mistake? (a) good teamwork (b) poor teamwork
28. 28.📐 On a plan, 1 cm stands for 20 m. A wall is 16 cm long on the plan. How long is the real wall, in metres?
29. 29.🏋️ Pushing a crate 1 m took 280 J of work. What force was used, in newtons?
30. 30.🛞 Which surface gives the MOST friction to a sliding block? (a) ice (b) glass (c) sandpaper (d) polished marble
31. 31.🪢 Tension or compression: a swing chain? (a) compression (b) tension
32. 32.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
33. 33.Which job does a chemical engineer do? (a) plans a space mission (b) makes medicines in bulk (c) designs hearing aids (d) builds a website
34. 34.📋 Criterion: the model bridge must hold at least 800 g. In the test it held 950 g. Does it meet the criterion? (a) No (b) Yes
35. 35.🏋️ A force of 160 N pushes a cart 10 m along the floor. How much work is done, in joules?
36. 36.🪢 Compression is a force that … (a) pulls or stretches (b) cools things (c) makes light (d) pushes or squeezes
37. 37.💪 Which force is at work: pedalling a cycle? (a) muscular force (b) friction (c) magnetic force (d) gravity
38. 38.⚖️ A seesaw balances. Arjun (400 N) sits 4 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?
39. 39.⚖️ A lever bar balances. The load is ? N at 40 cm from the fulcrum. The effort is 40 N at 60 cm from the fulcrum on the other side. What is the missing force in newtons?
40. 40.True or false: a mechanical engineer lays out a highway. (a) False (b) True

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