The air compressor shown in the...

Question 1 / 2707066636eee28f7522a1c51e4e8

Question 1 of 2707066636eee28f7522a1c51e4e8

The air compressor shown in the illustration, when used aboard a vessel is typically operated as __________. Illustration GS-0119

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Question 1 of 27070

The air compressor shown in the illustration, when used aboard a vessel is typically operated as __________. Illustration GS-0119

If the question has a related picture, it will appear here.

🔍 Key Concepts

• Receiver tank and pressure switch control of small service air compressors • Difference between on-off cycling and constant pressure/constant capacity operation • Typical use of this type of packaged air compressor on ships (service/control air vs. diesel starting air only)

💭 Think About

• Look closely at the receiver tank, control panel, and any pressure-sensing devices: do they suggest the compressor runs all the time, or starts and stops as needed? • Ask yourself whether the piping and accessories in the illustration look like a dedicated engine starting system, or a general service air system for the vessel. • Consider what operating method would best protect the motor and compressor from unnecessary running while still keeping the receiver at a usable pressure range.

✅ Before You Answer

• Identify if there is a pressure switch or controller connected to both the receiver and the motor starter controls. • Decide whether the system is arranged to maintain a narrow pressure band by cycling on and off, or to run continuously with unloading devices. • Verify whether any components or labels indicate the compressor is dedicated to diesel engine starting, or if it appears to be a more general ship service air package.

Question 1 of 27070

The air compressor shown in the illustration, when used aboard a vessel is typically operated as __________. Illustration GS-0119

a constant pressure unit while operating under all load conditions

an on-off cycle unit

a diesel engine air start unit only

a constant capacity unit

Question 1 / 2707066636eee28f7522a1c51e4e8

Question 1 of 2707066636eee28f7522a1c51e4e8

The air compressor shown in the illustration, when used aboard a vessel is typically operated as __________. Illustration GS-0119

Back

Question 1 of 27070

The air compressor shown in the illustration, when used aboard a vessel is typically operated as __________. Illustration GS-0119

If the question has a related picture, it will appear here.