Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 216 · 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.⚖️ A lever bar balances. The load is ? N at 40 cm from the fulcrum. The effort is 280 N at 30 cm from the fulcrum on the other side. What is the missing force in newtons?
2. 2.Which of these is a beam bridge? (a) tall towers hold cables (b) cables tied down at ends (c) pushes out on its ends (d) the simplest bridge
3. 3.Which of these is a wedge? (a) a door stopper (b) a seesaw (c) a window blind cord (d) a screw jack
4. 4.🔍 Which is the odd one out? (a) cut away from your body (b) leave tools on the floor (c) put tools back after use (d) carry scissors closed
5. 5.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 3 N, a glass sheet 6 N, a carpet 7 N, sandpaper 10 N. How many newtons more were needed on sandpaper than on ice?
6. 6.Which need does a bridge meet? (a) reach a top floor fast (b) go through a mountain (c) cross a wide river (d) make power from sunlight
7. 7.🛠️ Is a bridge made by engineers or found in nature? (a) made by engineers (b) found in nature
8. 8.True or false: a lift helps people reach a top floor fast. (a) True (b) False
9. 9.True or false: to repeat each test is poor testing. (a) True (b) False
10. 10.🏚️ Why is a wide base safer? (a) it is taller (b) it is colourful (c) it is harder to tip over (d) it is lighter
11. 11.Which need does a fridge meet? (a) cross a wide river (b) see very tiny things (c) talk to someone far away (d) keep food fresh longer
12. 12.🔍 Which is the odd one out? (a) making brittle joints (b) adding steel to concrete (c) using a heavy roof (d) leaving out steel bars
13. 13.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
14. 14.💪 A bag has a mass of 2 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
15. 15.📐 On a plan, 1 cm stands for 10 m. A real bridge is 200 m long. How long is it on the plan, in centimetres?
16. 16.🪝 A pulley system lifts a 40 N load with an effort of 20 N. What is its mechanical advantage (MA)?
17. 17.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) raising heavy tanks high (c) having a wide base (d) adding cross bracing
18. 18.⚖️ Going along a lever from one end to the other, the order is: load, fulcrum, effort. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
19. 19.Which of these is found in nature? (a) a cloud (b) a ceiling fan (c) a bridge (d) a dam
20. 20.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) iron (c) aluminium (d) copper
21. 21.True or false: a grippy rubber sole gives less friction. (a) True (b) False
22. 22.♻️ Reduce, reuse or recycle: melt cans into new cans? (a) reuse (b) reduce (c) recycle
23. 23.🔄 Which design-process step is it to ask who will use it? (a) Test (b) Ask (c) Create (d) Imagine
24. 24.Which need does a tunnel meet? (a) see very tiny things (b) store water for summer (c) go through a mountain (d) make power from sunlight
25. 25.🏋️ A 17 kg box is lifted straight up by 4 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
26. 26.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
27. 27.🧱 Which material is best for the bars inside concrete? (a) steel (b) glass (c) rubber (d) plastic
28. 28.🛞 Why are tyres made with deep treads? (a) to look nice (b) to go slower (c) to save rubber (d) to grip the road
29. 29.🧪 What is a prototype? (a) a sales poster (b) an early test model (c) a broken part (d) the final product
30. 30.Which of these is found in nature? (a) a mobile phone (b) a bridge (c) a ceiling fan (d) a volcano
31. 31.Which of these is caused by muscular force? (a) a compass needle turns (b) squeezing a lemon (c) a fridge magnet sticks (d) shoes grip the floor
32. 32.🛠️ What does an engineer do before building anything? (a) understands the problem (b) paints the model (c) buys every material (d) builds at once
33. 33.🪢 A stage stands on 5 identical legs and each leg is squeezed with 875 N. What is the total load on the stage, in newtons?
34. 34.⚙️ Which simple machine is a flagpole rope wheel? (a) pulley (b) lever (c) inclined plane (d) wedge
35. 35.🏋️ A force of 30 N pushes a cart 2 m along the floor. How much work is done, in joules?
36. 36.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) on the very top (c) low down (d) hanging outside
37. 37.🪝 A pulley system lifts a 200 N load with an effort of 100 N. What is its mechanical advantage (MA)?
38. 38.🪢 Tension or compression: a squeezed spring? (a) tension (b) compression
39. 39.🌉 Which bridge type: “deck hangs from cables”? (a) beam bridge (b) arch bridge (c) suspension bridge
40. 40.🪢 Tension or compression: a hanging lamp chain? (a) tension (b) compression

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