Question

Pressure loss co-efficient is defined as the ratio between the main upstream and downstream pressures during the scavenging period.

(a) True

(b) False

I had been asked this question in an online interview.

My question is from Scavenging Pumps topic in portion Two Stroke Engines of IC Engine

Answer 1

Answer: (b) False

Explanation:

The pressure loss coefficient is not defined as the ratio between the main upstream and downstream pressures during the scavenging period. Instead, it is typically a measure of the pressure drop across a component or system. In the context of scavenging pumps or systems, the pressure loss coefficient quantifies the loss of pressure due to friction, changes in velocity, or other factors as the flow of gases or fluids moves through the system.

The correct definition involves the loss of pressure due to resistance rather than the ratio of upstream and downstream pressures. Therefore, the statement is False.