If you have a simplex single acting...

Question 1 of 270705eccef9dbacbc34ba4d45e1b

If you have a simplex single acting reciprocating pump making 160 strokes/minute, with a 6" diameter cylinder, a 5" stroke and operating with 96% volumetric efficiency, what is the capacity of this pump?

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Question 1 of 27070

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🔍 Key Concepts

• Pump capacity for reciprocating pumps = volume per stroke × strokes per minute • Converting cylinder dimensions (diameter and stroke in inches) into cubic inches, then into gallons • Applying volumetric efficiency (percentage of theoretical capacity that is actually delivered)

💭 Think About

• How do you find the area of a circular piston from its diameter, and then use the stroke length to get volume per stroke? • Once you know cubic inches per stroke, how do you convert that to gallons per minute using the given strokes per minute? • Where in the calculation should the 96% volumetric efficiency be applied: before or after you find the theoretical flow rate?

✅ Before You Answer

• Confirm you use the formula for area of a circle: A = π × (D/2)², with D in inches • Be sure to convert cubic inches to gallons using 231 in³ = 1 gallon • Apply the 96% efficiency as a multiplier to the theoretical capacity at the end (i.e., actual = theoretical × 0.96)