The purpose of the sentinel valve installed...

Question 1 / 270705eccefa0bacbc34ba4d47121

Question 1 of 270705eccefa0bacbc34ba4d47121

The purpose of the sentinel valve installed on a turbine casing is to __________.

Question 1 of 27070

The purpose of the sentinel valve installed on a turbine casing is to __________.

🔍 Key Concepts

• Function of a sentinel valve on a steam turbine casing • Difference between warning devices and pressure-relief/venting devices • Where excess steam from a turbine casing is normally sent in abnormal overpressure situations

💭 Think About

• Ask yourself: Does a sentinel valve handle the full flow of excess steam, or is it mainly there to alert the watchstander to a dangerous condition? • Think about which turbine casing (high pressure or low pressure) is most associated with a sentinel valve and what condition would be most dangerous there. • Consider how a main condenser and extraction points are normally protected—are they protected by the same device that gives an audible/visual alarm from the turbine casing?

✅ Before You Answer

• Identify whether a sentinel valve is primarily a safety relief valve or an alarm/indicator device. • Check which answer choice describes an alarm/warning function versus a pressure-relief/venting path. • Verify which option specifically mentions the location/section of the turbine that is typically monitored by a sentinel valve.

Question 1 of 27070

The purpose of the sentinel valve installed on a turbine casing is to __________.

warn the engineer of excessive pressure in the low-pressure turbine casing

vent excess steam to the main condenser

warn the engineer of backflow of steam from the exhaust trunk

relieve excess pressure to the turbine extraction points

Question 1 / 270705eccefa0bacbc34ba4d47121

Question 1 of 270705eccefa0bacbc34ba4d47121

The purpose of the sentinel valve installed on a turbine casing is to __________.

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Question 1 of 27070

The purpose of the sentinel valve installed on a turbine casing is to __________.