If a belt-driven reciprocating air...

If a belt-driven reciprocating air...

Question 1 of 270705eccef9bbacbc34ba4d455d4

If a belt-driven reciprocating air compressor is operating at a lower than design displacement capacity (in cubic feet per minute), which of the following would be a cause?

Question 1 of 27070

Q

If a belt-driven reciprocating air compressor is operating at a lower than design displacement capacity (in cubic feet per minute), which of the following would be a cause?

🔍 Key Concepts

• Effect of belt tension on speed and power transmission in belt-driven machinery • How slippage or mechanical losses affect compressor displacement (CFM) • Relationship between compressor RPM and volumetric displacement

💭 Think About

• Ask yourself: which condition would most directly reduce the actual RPM of the compressor compared to the driver’s RPM? • Which option could cause the belt to not fully transmit torque under load, especially when resistance increases during compression? • Which of these issues would primarily affect flow rate (CFM) rather than causing immediate overheating, noise, or mechanical damage?

✅ Before You Answer

• Compare how too tight vs too loose belts affect slippage and load on bearings. • Consider whether misalignment or poor lubrication would first show up as reduced CFM, or as other symptoms such as vibration, heat, or bearing failure. • Focus on the choice that most obviously leads to belt slip under load, lowering the compressor’s effective speed and thus displacement.