Question 58Steam Plants - QMED70% to pass
Which of the pumps listed operates at constant speed and delivers water to the deaerating feed tank at a nearly constant pressure?
AI Explanation
The correct answer is A) Main condensate pump.
The main condensate pump operates at a constant speed and delivers water to the deaerating feed tank at a nearly constant pressure. This is because the main condensate pump is responsible for drawing condensate from the main condenser and delivering it to the deaerating feed tank, which is a critical function in the boiler water supply system. The constant speed and pressure ensure a reliable and consistent flow of water to the deaerating feed tank, which is necessary for the proper operation of the boiler.
The other options, such as the main feed booster pump, main circulating pump, and main feed pump, are not the correct answer as they may operate at variable speeds or deliver water at varying pressures, depending on the system's demands.
Related Questions
#56 In terms of the completeness of combustion, in viewing the condition of the stack, what would be the indication of the MOST complete combustion and HIGHEST boiler efficiency? #57 The leakage of air into the pump casing by way of the packing gland of a condensate pump, is prevented by _______________.#59 In a main propulsion steam turbine installation, the condensate pump initially discharges to the _______________.#60 According to the illustrated diagram, what is the correct sequential order of heat exchangers that the main condensate pump pumps condensate through? (SG-0010 #61 While underway, vacuum in the main condenser is primarily caused by the _______________.