Generally the larger line is the inlet and the smaller line is the return.
The pelvic inlet (surface that defines the border between the abdominal and pelvic cavities) in males is "andriod" shaped, i.e. heart or wedge shaped.
A bay
It depends on the vehicle you have. In many cases (but not all) the inlet hose is smaller than the outlet hose.
Typically, the gas spud has a smaller diameter compared to the gas inlet. The gas spud is designed to emit a controlled flow of gas into a burner, while the gas inlet is where the gas supply enters the system, requiring a larger diameter for efficient distribution.
A strait.
Generally a "pond" is taught of as a still body of water smaller than a lake. "still" implies no flow movement and would mean that there is no inlet or outlet. However, the term "pond" is sometimes extended as in "Mill Pond" which would have both an inlet and an outlet.
In the inlet line on the evaporator core. It is the smaller one.
outlet ports are smaller to reduce the exhaust losses
A normal chest xray but angled up a little and a smaller area at the top of your chest.
A island
The smaller nozzle hole increases the velocity of the fluid passing through it, creating a stronger suction force. This helps draw in more air or fluid into the system. The larger air inlet allows for a greater volume of air to enter the system, which can then be controlled and directed more effectively by the nozzle.