Question

Shocks generated due to an interaction of two bodies are called ______

(a) Oblique shock

(b) Bow shock

(c) Moving shock

(d) Detonation

The question was posed to me in an internship interview.

This intriguing question comes from Velocity of Sound or Pressure Wave in a Fluid in portion Compressible Flow of Fluid Mechanics

Answer 1

Correct choice is (c) Moving shock

For explanation I would say: Shocks that are generated by the interaction of two bodies of gas. This interaction takes place at different pressure, with the shock wave propagating into a lower pressure gas and an expansion wave propagates into a high-pressure gas.