aerospace engineer
chemical engineer
computer engineer
mechanical engineer
marine engineer
100

This chaotic, swirling flow regime features high mixing and significantly increases skin friction drag on an aircraft fuselage.

 What is turbulent flow?

100

This basic mode of heat transfer happens when hot air or liquid physically moves and carries heat with it, like a boiling pot or a home heater.


  • What is convection?
100

Computer hardware relies on this base-2 numbering system, which uses only the digits 0 and 1.


    • What is binary?

100

This rotational equivalent of mass measures a rigid body's resistance to angular acceleration about a specific axis.

What is the mass moment of inertia?

100

Due to their extreme thermal efficiency and ability to run for weeks continuously, this specific type of large internal combustion engine powers nearly all massive cargo ships.

What is a marine diesel engine

200

In a liquid bipropropellant system, this chemical element is typically paired with liquid hydrogen to act as the oxidizer.

What is oxygen

200

$600 Clue: This common unit of pressure is defined as the average weight of the Earth's air pressing down at sea level.


What is an atmosphere (or atm)?

200

This specialized hardware component is responsible for executing arithmetic operations (like addition) and logical operations (like bitwise AND) inside a CPU.

What is an ALU (Arithmetic Logic Unit)?

200

This physical property measures a fluid's internal resistance to flow, often thought of as the fluid's thickness.


    • What is viscosity?

200

e: This heavy, viscous residual fuel oil historically burned by container ships must be heavily heated on board just to make it thin enough to pump into the engine injectors.

What is bunker fuel

300

This specific class of liquid propellants spontaneously ignites the exact moment they come into physical contact with each other, requiring no spark plug.

What are hypergolic propellants?

300

This type of smooth, organized fluid flow happens when a liquid flows in calm, straight parallel lines without splashing or swirling.


    •  What is laminar flow?




300

This small, ultra-fast memory layer sits directly inside or next to the CPU to store frequently used data, speeding up retrieval times.

What is cache memory?

300

This dimensionless number represents the ratio of convective heat transfer to conductive heat transfer across a fluid boundary layer.

What is the Nusselt number?

300

To protect marine ecosystems, international maritime law strictly mandates that bilge water pass through this specific machine to ensure it contains less than 15 parts per million of oil before discharge.

What is an Oily Water Separator (

400

This core mathematical equation dictates the maximum change in velocity a spacecraft can achieve based on its structural mass, propellant mass, and exhaust velocity.


    • What is the Tsiolkovsky rocket equation?




400

This scale from 0 to 14 is used by engineers to measure exactly how acidic or basic a liquid solution is.

What is the pH scale?

400

This core system software acts as the primary interface between the user, the application software, and the physical computer hardware.

What is an Operating System (OS)?

400

This mechanical mechanism converts rotational motion into precise linear motion using a profiled rotating wheel and a sliding rod.


    • What is a cam and follower?

400

Because seawater accelerates electrochemical reactions, this destructive form of iron oxidation is the primary maintenance headache for steel-hulled ships.

What is rust?

500

Named after a pioneering Nyquist-related theorem, this standard rate dictates that a digital telemetry system must sample an analog flight signal at least twice its highest frequency to avoid aliasing.


    •  What is the Nyquist sampling rate?




500

This separation process involves spinning a liquid mixture at incredibly high speeds to force heavy solids to the bottom of a tube.


    • What is centrifugation?




500

This 12-digit or 4-part numerical label is assigned to every device connected to a computer network that uses the Internet Protocol for communication.


    • What is an IP address?
500

This dimensionless material constant represents the ratio of lateral strain to axial strain when a sample is stretched or compressed.


    • What is Poisson's ratio?




500

Instead of sacrificial metals, this active, automated system uses a direct current (DC) power source and permanent anodes to continuously protect a large ship's hull from galvanic corrosion.


    • What is Impressed Current Cathodic Protection (ICCP)?