Question 74Steam Plants - QMED70% to pass
According to the illustrated diagram, what statement is true concerning the operation of the "make-up valve"? Illustration SG-0010
AI Explanation
The correct answer is C. The "make-up valve" opens when the level in the main condenser hot well drops to a certain level and allows make-up water to be drawn out of the distilled water tank via vacuum drag into the main condenser.
This is correct because the main condenser hot well is where the condensed steam from the turbine is collected. If the level in the hot well drops, the make-up valve opens to allow additional distilled water to be drawn in to maintain the proper water level in the condenser.
The other options are incorrect because they do not accurately describe the function of the make-up valve in relation to the main condenser hot well level. The make-up valve does not open to pump excess water from the hot well or the deaerating feed tank to the distilled water tank.
Related Questions
#72 Clean low pressure steam drains are collected in the _______________.#73 The atmospheric drain tank (ADT) normally drains to the _______________.#75 High pressure and low pressure drain systems are part of the _______________.#76 Which of the labeled items within the illustrated steam drum represents the last line of defense in helping to prevent moisture carryover into the saturated steam leaving the steam drum? Illustration SG-0011 #77 Which of the labeled items within the illustrated steam drum represents the means by which feed water is introduced into the steam drum? Illustration SG-0011