If you have a simplex single acting...

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Question 1 of 205eccef9bbacbc34ba4d4552c

If you have a simplex single acting reciprocating pump making 100 strokes/minute, with a 6" diameter cylinder, a 8" stroke and operating with 90% volumetric efficiency, what is the capacity of this pump?

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🔍 Key Concepts

• Simplex single-acting reciprocating pump (what does one stroke actually move?) • Cylinder displacement per stroke = area × stroke length • Converting cubic inches per minute to gallons per minute and applying volumetric efficiency

💭 Think About

• How do you find the volume displaced in one stroke using the cylinder diameter and stroke length? • Once you have volume per stroke, how do you use strokes per minute to get volume per minute? • Where in the calculation do you apply the 90% volumetric efficiency—before or after converting to gallons?

✅ Before You Answer

• Make sure you use the formula for area of a circle: A = πd²/4 (with d in inches). • Verify you convert from cubic inches to gallons using 231 in³ = 1 gallon. • Confirm that a simplex single-acting pump only discharges on one direction of the stroke, not both.

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