Actual Engineering
AERO
Cables
Trivial
Dumb
100
1 Horsepower to Watts
746 watts
100
What is the name for the phenomenon of downforce under a car due to a small gap with the road?
Ground effect
100
What does USB stand for?
Universal Serial Bus
100
Why can improving heat transfer lead to system overheating?
Because improving heat transfer changes the operating mode of the system and can increase heat generation more than heat removal.
100
This Italian landmark is now a famous tourist attraction due to it's famous "feature", which is definetly not accidental.
The leaning tower of Pisa
200
In thermodynamics, this "Second Law" states that the total disorder or randomness of a system always increases.
Entropy
200
What does CFD stands for?
Computational Fluid Dynamics
200
This connector was controversially removed by Apple on the iPhone 7
The headphone jack
200
Why does ice float in water?
Because it is less dense.
200
In 1999, NASA lost a $125 million Mars Orbiter because one engineering team used Metric units while another used this system.
Imperial
300
This is the measure of a material's resistance to localized plastic deformation, often tested by pressing a diamond into it.
Hardness
300
Why can flow separation occur at a high angle of attack?
A high angle of attack creates conditions in which the boundary layer cannot remain on the wing and breaks away
300
How do you tell apart USB A 3.0 from 2.0?
USB 3.0 connectors typically have a blue color, making them stand out from the black or white connectors of USB 2.0 cables.
300
Under what conditions does increasing the safety factor reduce the reliability of a structure?
If mass or construction complexity increase
300
NASA spent MILLIONS of dollars developing a high-tech space pen. What did the soviets use for writing in space?
A pencil
400
In bridge building, this "T" shaped structure uses triangles to distribute weight across a span.
Truss
400
What does the Reynolds number indicate?
This shows what physical flow regime is realized under specific conditions.
400
What is the right side connector called?
USB Type B
400
What is the formula for material density?
400
This famous bridge in the baltics could collapse at any moment.
Cable Bridge (Vanšu tilts)
500
The bearing capacity of Fd, KN, hanging driven and depressed piles and reinforced concrete pile-shell, submerged without excavation of soil, operating on the injercising load, should be determined as the sum of the calculated resistances of the base soils under the lower end of the pile and on its side surface according to the formula
500
What is boundary layer in aerodynamics?
It is a thin layer of fluid at the surface of a body in which the flow velocity varies from zero at the surface to the velocity of the main flow.
500
What is this connector called?
SDI
500
Why can increasing power supply efficiency worsen electromagnetic compatibility?
Because increasing the efficiency of a switching power supply is almost always achieved by “sharper” switching and less damping, and this directly worsens EMC/EMI.
500
What is the most expensive project in Eastern Europe?
Railbaltica