Pass Benchmark: 70% (21/30) • Standard: USCG NMC / 46 CFR

USCG Steam Plants (Boilers & Turbines) (Set 20)

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Question 1 of 30

Dissolved oxygen in the condensate can result from __________.

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30 MCQs

#1 Dissolved oxygen in the condensate can result from __________. #2 Salt water contamination of condensate could occur at which component? #3 If the salinity indicator periodically registers high salinity in the main hot well, the cause may be __________. #4 Which of the conditions listed could prevent a centrifugal condensate pump from developing its rated capacity? #5 Excessive condensate depression can result in __________. #6 While maneuvering out of port, you answer a stop bell. You notice a lot of steam coming out of the gland exhaust condenser vent, in addition to the main condenser hot well level being low. For this condition you should __________. #7 From which of the areas listed are condensate drains normally collected and returned to the low pressure drain system? #8 A basic comparison can be made between a low pressure evaporator operation and a main condenser with regards to the removal of non-condensable gases. The vacuum drag line for the main condenser is specifically connected in which area? #9 Which of the listed systems would be a potential source for the high pressure drain system? #10 High pressure steam drains are normally discharged to the __________. #11 The property of a fuel oil which is a measurement of its available energy, is known as its __________. #12 Which of the significant combustible elements of fuel oil is a major source of boiler corrosion? #13 The minimum temperature requirements for fuel oil in storage tanks is related to the _________. #14 The most harmful slag forming compounds found in fuel oils are __________. #15 Which constituent of fuel oil determines the specific heat? #16 Which combustible element in fuel oil is considered a significant and major source of air pollution? #17 The BTU value of fuel oil is determined by a/an __________. #18 The flash point of a residual fuel oil should be used to determine the highest temperature to which the oil may be heated __________. #19 When testing boiler flue gas with a chemical absorption apparatus, to obtain accurate results __________. #20 The absence of carbon monoxide in the flue gas of a boiler indicates __________. #21 When burning fuel oil in a boiler, a high CO2 content is desired in the stack gas because __________. #22 A mechanical carbon dioxide recorder operates by detecting the difference between air and the __________. #23 A flue gas analysis is performed to determine the __________. #24 Which of the following chemicals is used in an Orsat apparatus to absorb carbon dioxide? #25 If an analysis of boiler flue gas determines there is no excess air for combustion, you should expect the nitrogen content of the flue gas to be approximately __________. #26 Generally, a 12% to 14% content of carbon dioxide in boiler flue gases indicates __________. #27 The temperature of the fuel oil received during bunkering operations is critical in determining the __________. #28 When you are transferring fuel oil to the settling tanks, precautions to be observed should include __________. #29 When you are transferring fuel oil from one double bottom tank to another, precautions to be observed should include __________. #30 Which of the pumps listed takes fuel oil suction from the double bottom tanks and discharges it to the settling tanks?

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