POWER PLANT OPERATIONS PART 3
Quiz by Zahid Nabi Wasa
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20 questions
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- Q1a closed pressure vessel in which water is boiled and converted into steam under controlled conditionsBoiler30s
- Q2a system that controls the temperature of steam leaving a boiler by using water injection through a control valveDesuperheater30s
- Q3tubes exposed to the firebox that transfer water from the steam drum to the mud drumDowncomers30s
- Q4the section of a boiler used to preheat feed water before it enters the main boiler systemEconomizer30s
- Q5(1) the lower drum of a boiler that is used as a junction area for boiler tubes. (2) A low place in a boiler where heavy particles in the water will settle out so that they can be blown downMud drum30s
- Q6tubes that go into the side or top of the steam drum, allowing heated water and steam to flow up from the mud drumRisers30s
- Q7the top drum of a boiler where all of the generated steam gathers before entering the separating equipmentSteam drum30s
- Q8steam that has been heated to a very high temperature so that a majority of the moisture content has been removed (also called dry steam)Superheated steam30s
- Q9a set of tubes, located near the boiler outlet, that increases (superheats) the temperature of the steamSuperheater30s
- Q10In order to contain and redirect heat back into the firebox, a special ______lining (a brick like form of insulation) is used.refractory30s
- Q11Hot water is less ______than cold water, so it tends to ______.dense, rise30s
- Q12Boilers are designed in two major types:water tube, fire tube30s
- Q13The purpose of a boiler is tomake steam30s
- Q14(sight glass) is a tube that indicates the water leve in a boiler.Gauge glass30s
- Q15At sea level, atmospheric pressure is approximately......14.7 psia30s