Question 723Steam Plants - Assistant Engineer70% to pass
While a vessel is underway, one of the FIRST indications of the failure of the gland leak off exhaust fan motor is _______________.
AI Explanation
The correct answer is A) excessive steam leakage at the turbine glands.
The failure of the gland leak off exhaust fan motor would result in a loss of airflow through the turbine glands, causing excessive steam leakage at the turbine glands. This is because the gland leak off exhaust fan is responsible for maintaining a negative pressure in the gland leak off system, which prevents steam from escaping the turbine glands. If the fan fails, the lack of airflow would allow steam to leak out, which would be one of the first indications of the fan failure.
The other options are incorrect because they would not be the first indication of the gland leak off exhaust fan motor failure. Loss of vacuum, water knock, and increased turbine exhaust temperature would be secondary effects that would occur after the initial steam leakage.
Related Questions
#721 For the gland seal regulator shown in the illustration, an increase in gland seal pressure will result in _ . Illustration SE-0019 #722 In a cross compound main propulsion unit, the astern turbine is usually installed at the _______________.#724 As shown in the illustration, live steam is supplied to the gland seal regulator via _______________. Illustration SE-0019 #725 While making engine room rounds at sea, you observe excessive steam leaking from the forward gland on the high-pressure turbine. This may indicate that the _______________.#726 During maneuvering, a vessel has just reached full ahead from a dead slow condition. Which of the following actions reflects the first operation of the gland seal regulator shown in the illustration? Illustration SE-0004