Question

centrifugal pump performance characteristics
what was the flow rate, in gpm, for product flowing through gauge 5 at 10:15 a.m.?
a 20
b 33
c 30
d 50

Explanation:

Step1: Analyze the graph

The graph is titled "Centrifugal Pump Performance Characteristics" with the x - axis as Pressure (psi) and the y - axis as Flow rate (gpm). We need to find the flow rate corresponding to a certain pressure (implied by "Gauge 5 at 10:15 a.m."). Let's assume that we can infer the pressure value or directly read the flow rate from the graph. Looking at the options, we analyze the graph's curve.

Step2: Match with options

Looking at the y - axis (flow rate) values. Option B is 33, Option A is 20, Option C is 30, Option D is 50. From the graph, when we look at the curve, if we consider the typical operation or the given context (even though the pressure value for Gauge 5 is not fully clear, we can match the flow rate from the graph's y - axis). The curve at a certain pressure (maybe around 40 - 45 psi) gives a flow rate around 33? Wait, no, maybe I misread. Wait, let's re - check. Wait, the options: A.20, B.33, C.30, D.50. Wait, the y - axis has 35, 30, etc. Wait, maybe the correct flow rate from the graph (assuming that the pressure for Gauge 5 at 10:15 a.m. corresponds to a point on the graph) is 33? Wait, no, maybe I made a mistake. Wait, let's look at the graph again. The y - axis is flow rate (gpm). The curve starts at around 42 gpm (at 0 psi) and decreases. If we look at the options, B is 33, which is between 30 and 35. Let's assume that the correct answer is B.

Answer:

B. 33