Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 680 · 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 project report has 70 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
2. 2.True or false: a pillar under a roof is in compression (pushed). (a) True (b) False
3. 3.True or false: to listen to every idea is good teamwork. (a) True (b) False
4. 4.What does the materials manager do? (a) writes down results (b) puts the model together (c) runs the tests (d) collects the supplies
5. 5.True or false: to measure a long length, use a tape measure. (a) True (b) False
6. 6.Which of these is found in nature? (a) a satellite (b) a mountain (c) a bicycle (d) a mobile phone
7. 7.🤝 Why do engineers work in teams? (a) many skills and ideas (b) to finish nothing (c) to work alone (d) to argue more
8. 8.⚖️ To lift a heavy rock with a crowbar more easily, push … (a) on the fulcrum (b) far from the fulcrum (c) near the fulcrum (d) on the rock
9. 9.True or false: to give kind feedback is poor teamwork. (a) False (b) True
10. 10.🏚️ 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 120 cm tall on a 30 cm base and tower C is 80 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
11. 11.🪢 A beam rests on two supports and is pressed down in the middle. Its bottom edge is … (a) not affected (b) stretched (tension) (c) twisted (d) squeezed (compression)
12. 12.🛞 Is friction helpful or a problem here: writing with a pencil? (a) a problem (b) helpful
13. 13.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
14. 14.🔢 To follow the engineering design process, what comes right after “Imagine”? (a) Improve (b) Ask (c) Create (d) Plan
15. 15.📐 How many metres are in 1 kilometre? (a) 100 (b) 10000 (c) 1000 (d) 10
16. 16.📐 Why do engineers use scale drawings? (a) big things fit on paper (b) to make them pretty (c) to save ink only (d) to hide sizes
17. 17.Which need does a microscope meet? (a) carry many people far (b) keep food fresh longer (c) see very tiny things (d) make power from sunlight
18. 18.🔍 Which is the odd one out? (a) a rainbow (b) a cloud (c) a ceiling fan (d) a waterfall
19. 19.True or false: sunlight is a non-renewable energy source. (a) True (b) False
20. 20.🌉 Which bridge type: “cables tied down at ends”? (a) suspension bridge (b) arch bridge (c) beam bridge
21. 21.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “sketch three ideas”? (a) sketch three ideas (b) build it with straws
22. 22.⚖️ Which class of lever is a pair of scissors? (a) class 2 (b) class 3 (c) class 1
23. 23.🏚️ Three solid model towers are made of the same material. Tower A is 150 cm tall on a 30 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 70 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
24. 24.⚖️ A seesaw balances. Ravi (180 N) sits 2 m from the pivot on one side; Asha (? N) sits 1 m from the pivot on the other side. What is the missing weight in newtons?
25. 25.🪝 A bucket weighing 360 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
26. 26.🪢 A sign weighing 650 N hangs from 5 identical vertical ropes that share the load equally. What is the tension in each rope, in newtons?
27. 27.🧑‍🔧 Which branch of engineering works on aeroplanes and rockets? (a) civil (b) computer (c) chemical (d) aerospace
28. 28.♻️ Is wind a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
29. 29.🧪 A paper bridge was tested three times. It held 270 g, 190 g and 110 g. What is the mean (average) load it held, in grams?
30. 30.True or false: to leave tools on the floor is not safe. (a) True (b) False
31. 31.🏋️ In which unit is work measured? (a) metre (m) (b) newton (N) (c) joule (J) (d) watt hour
32. 32.🛞 More or less friction: oil on a squeaky hinge? (a) less friction (b) more friction
33. 33.True or false: “the simplest bridge” is an arch bridge. (a) False (b) True
34. 34.🔄 Which design-process step is it to build the model? (a) Create (b) Improve (c) Plan (d) Imagine
35. 35.💪 Which force is at work: rubbing hands warms them? (a) friction (b) magnetic force (c) gravity (d) muscular force
36. 36.🦺 In the workshop, is it safe to tie back long hair? (a) safe (b) not safe
37. 37.🪝 A pulley system lifts a 220 N load with an effort of 110 N. What is its mechanical advantage (MA)?
38. 38.⚙️ How many simple machines are there in the usual list? (a) 12 (b) 6 (c) 3 (d) 10
39. 39.📐 On a plan, 1 cm stands for 5 m. A wall is 18 cm long on the plan. How long is the real wall, in metres?
40. 40.🏋️ A force of 70 N did 70 J of work. How many metres did the object move?

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