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68 Cards in this Set

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  • Back
Two identical pressurizers are connected to the same location on two identical reactor coolant systems operating at 1,000 psia. Pressurizer A volume contains 50 percent saturated water and 50 percent saturated steam. Pressurizer B volume contains 50 percent subcooled water (at 300EF) and 50 percent nitrogen. Which one of the following explains which pressurizer will maintain the highest pressure following a sudden 10 percent liquid outsurge from each pressurizer? A. Pressurizer A due to vaporizing of saturated water as pressure begins to decrease B. Pressurizer A due to the expansion characteristics of saturated steam being better than the expansion characteristics of nitrogen C. Pressurizer B due to the subcooled water resulting in a smaller amount of energy being lost upon the outsurge D. Pressurizer B due to the expansion characteristics of nitrogen being better than the expansion characteristics of saturated steam
A.
Two identical pressurizers are connected to the same location on two identical reactor coolant systems operating at 1,000 psia. Pressurizer A volume contains 50 percent subcooled water (at 300EF) and 50 percent nitrogen. Pressurizer B volume contains 50 percent saturated water and 50 percent saturated steam. Which one of the following explains which pressurizer will maintain the highest pressure during a sudden 10 percent liquid outsurge from each pressurizer? A. Pressurizer A due to the subcooled water resulting in a smaller amount of energy being lost during the outsurge. B. Pressurizer A due to the expansion characteristics of nitrogen being better than the expansion characteristics of saturated steam. C. Pressurizer B due to vaporizing of saturated water as pressure begins to decrease. D. Pressurizer B due to the expansion characteristics of saturated steam being better than the expansion characteristics of nitrogen.
C.
A nuclear reactor is operating normally at 100 percent power. Reactor coolant enters the reactor vessel at a temperature of 556EF and a total flow rate of 320,000 gpm. The reactor coolant leaves the reactor vessel at 612EF. What is the approximate flow rate of the reactor coolant leaving the reactor vessel? A. 320,000 to 329,000 gpm B. 330,000 to 339,000 gpm C. 340,000 to 349,000 gpm D. 350,000 to 359,000 gpm
D.
A liquid is saturated with 0 percent quality. Assuming pressure remains constant, the addition of a small amount of heat will... A. raise the liquid temperature above the boiling point. B. result in a subcooled liquid. C. result in vaporization of the liquid. D. result in a superheated liquid.
C.
A pressurizer is operating in a saturated condition at 636EF. If a sudden pressurizer level decrease of 10 percent occurs, pressurizer pressure will ______________ and pressurizer temperature will ________________. A. remain the same; decrease B. remain the same; remain the same C. decrease; decrease D. decrease; remain the same
C.
Consider a water/steam mixture with a current quality of 99 percent. If pressure remains constant and heat is removed from the mixture, the temperature of the mixture will __________ and the quality of the mixture will __________. (Assume the mixture remains saturated.) A. decrease; remain the same B. decrease; decrease C. remain the same; remain the same D. remain the same; decrease
D.
A nuclear power plant is shut down with the following pressurizer conditions: Pressurizer liquid temperature: 588EF Pressurizer vapor temperature: 607EF Pressurizer pressure: 1,410 psia If the pressurizer is vented until pressure equals 1,200 psia, pressurizer liquid temperature will... A. increase due to condensation of vapor. B. increase due to evaporation of liquid. C. decrease due to condensation of vapor. D. decrease due to evaporation of liquid.
D.
Which one of the following describes the temperature of a saturated liquid? A. Below the boiling point B. At the boiling point C. Above the boiling point D. Unrelated to the boiling point
B.
Consider a water/steam mixture with a current quality of 95 percent. If pressure remains constant and heat is added to the mixture, the temperature of the mixture will __________ and the quality of the mixture will __________. (Assume the mixture remains saturated.) A. increase; remain the same B. increase; increase C. remain the same; remain the same D. remain the same; increase
D.
If 1 pound-mass of liquid water is in a saturated condition at a constant pressure, the addition of 1 Btu will... A. raise the temperature of the water by 1EF. B. vaporize a portion of the water. C. increase the density of the water. D. result in 1EF of superheat.
B.
Consider a steam-water mixture with a current quality of 79 percent. If pressure remains constant and heat is added to the mixture, the temperature of the mixture will __________ and the quality of the mixture will __________. (Assume the mixture remains saturated.) A. increase; increase B. increase; remain the same C. remain the same; increase D. remain the same; remain the same
C.
A nuclear power plant is shut down with the pressurizer in a saturated condition as follows: Pressurizer liquid temperature = 588EF Pressurizer vapor temperature = 588EF Pressurizer pressure = 1,410 psia Pressurizer spray is initiated to lower pressurizer pressure to 1350 psia. When pressurizer pressure stabilizes at 1350 psia, liquid temperature will be ____________ and vapor temperature will be ____________. A. the same; the same B. the same; lower C. lower; the same D. lower; lower
D.
A steam-water mixture is initially saturated with a quality of 50 percent, when a small amount of heat is added. Assuming pressure remains constant and the mixture remains saturated, mixture steam quality will ___________ and mixture temperature will ___________. A. increase; increase B. increase; remain the same C. remain the same; increase D. remain the same; remain the same
B.
Which one of the following is the approximate steam quality of a steam-water mixture at 467EF with an enthalpy of 1,000 Btu/lbm? A. 25 percent B. 27 percent C. 73 percent D. 75 percent
C.
Consider a pressurizer containing a saturated water/steam mixture at 636EF with a quality of 50 percent. If an outsurge removes 10 percent of the liquid volume from the pressurizer, the temperature of the mixture will __________, and the quality of the mixture will __________. (Assume the mixture remains saturated.) A. decrease; decrease B. decrease; increase C. remain the same; decrease D. remain the same; increase
B.
Which one of the following describes the effect of removing heat from a steam-water mixture that is in a saturated condition? (Assume the mixture remains saturated.) A. Temperature will increase. B. Temperature will decrease. C. Quality will increase. D. Quality will decrease.
D.
A nuclear power plant is shut down with the pressurizer in a saturated condition as follows: Pressurizer liquid temperature = 588EF Pressurizer vapor temperature = 588EF Pressurizer pressure = 1,410 psia Pressurizer heaters are energized to raise pressurizer pressure to 1,450 psia. When pressurizer pressure stabilizes at 1,450 psia, liquid temperature will be ____________ and vapor temperature will be ____________. A. the same; the same B. the same; higher C. higher; the same D. higher; higher
D.
An open container holds one pound-mass of liquid water at saturated conditions and atmospheric pressure. The addition of 4 Btu will... A. raise the temperature of the water by 4EF. B. vaporize a portion of the water. C. increase the density of the water. D. result in 4EF of superheat.
B.
Consider a sealed vessel containing 1,000 lbm of a saturated water/vapor mixture at 500EF. The mixture is currently stable with no net heat gain or loss occurring. If a leak near the bottom of the vessel results in a loss of 10 percent of the liquid volume from the vessel, the temperature of the mixture will __________, and the overall quality of the mixture will __________. (Assume the mixture remains saturated.) A. decrease; increase B. decrease; decrease C. remain the same; increase D. remain the same; decrease
A.
Given the following: C A saturated steam-water mixture with an inlet quality of 60 percent is flowing through a moisture separator. C The moisture separator is 100 percent efficient for removing moisture. How much moisture will be removed by the moisture separator from 50 lbm of the steam-water mixture? A. 10 lbm B. 20 lbm C. 30 lbm D. 40 lbm
B.
Given the following: ¥ A saturated steam-water mixture with an inlet quality of 40 percent is flowing through a moisture separator. ¥ The moisture separator is 100 percent efficient for removing water. How much water will be removed by the moisture separator from 50 lbm of the steam-water mixture? A. 10 lbm B. 20 lbm C. 30 lbm D. 40 lbm
C.
Any vapor having a temperature above saturation temperature is a... A. saturated vapor. B. superheated vapor. C. dry saturated vapor. D. wet saturated vapor.
B.
A reactor trip occurred 10 minutes ago due to a loss of coolant accident. Emergency coolant injection is in progress and pressurizer level is increasing. Current pressurizer conditions are as follows: Pressurizer liquid temperature = 540EF Pressurizer vapor temperature = 607EF Pressurizer pressure = 1,410 psia Pressurizer level = 60 percent Given these conditions, the pressurizer liquid is ____________ and the pressurizer vapor is ____________. A. saturated; saturated B. saturated; superheated C. subcooled; saturated D. subcooled; superheated
D.
Consider a saturated water/steam mixture at 500EF with a quality of 90 percent. If the pressure of the mixture is decreased with no heat gain or loss, the temperature of the mixture will __________ and the quality of the mixture will __________. (Assume the mixture remains saturated.) A. decrease; decrease B. decrease; increase C. remain the same; decrease D. remain the same; increase
B.
An open vessel contains one pound-mass of water at 206EF and standard atmospheric pressure. Which one of the following will be caused by the addition of 3.0 Btu to the water? A. The water temperature will rise by approximately 3EF. B. Approximately 3 percent of the water mass will vaporize. C. The water density will decrease by approximately 3 percent. D. The water will become superheated by approximately 3EF.
A.
A nuclear reactor is shut down with reactor coolant system (RCS) pressure at 1,500 psia and core decay heat is being removed via the steam generators (S/Gs). What pressure must be maintained in the S/Gs to obtain a 110EF subcooling margin in the RCS loop cold legs? (Assume a negligible temperature difference across the S/G tubes.) A. 580 psia B. 600 psia C. 620 psia D. 640 psia
B.
Which one of the following steam generator (S/G) pressures will come closest to producing a 50EF reactor coolant system (RCS) subcooling margin with RCS pressure at 1,000 psia? (Assume a negligible delta-T across the S/G tubes.) A. 550 psia B. 600 psia C. 650 psia D. 700 psia
C.
Which one of the following changes will result in increased subcooling of the condensate in the condenser hotwell? A. Isolate one bay of the condenser circulating water system. B. Increase circulating water temperature. C. Decrease circulating water flow. D. Decrease the main turbine steam flow rate.
D.
A nuclear power plant has been operating at 100 percent power (3,400 MWt) for six months when a main steamline break results in a reactor trip. The break is isolated and all steam generators (S/Gs) stop depressurizing at 700 psia. The reactor coolant system (RCS) cooldown stops at 503EF and a heatup begins. Current plant conditions are as follows: Total mass of water in the RCS and S/Gs: 800,000 lbm Specific heat of RCS and S/G water: 1.2 Btu/lbm-EF Reactor coolant pump heat input to RCS: 15 MWt Decay heat generation rate: 3 percent RCS pressure: 1,600 psia Feedwater flow to S/Gs: Isolated The above parameters do not change once the break is isolated. The RCS and S/Gs remain in thermal equilibrium during the heatup. The S/Gs remain saturated and the only S/G heat removal path is via the safety valve. Approximately how long from break isolation will it take for S/G pressure to reach the safety valve setpoint of 1,100 psia? A. 2 minutes B. 8 minutes C. 16 minutes D. 30 minutes
B.
Which one of the following is the approximate temperature of a water-steam mixture that has an enthalpy of 1,150 Btu/lbm and a quality of 95 percent? A. 220EF B. 270EF C. 360EF D. 440EF
C.
Given a set of steam tables with the following parameters for saturated steam-water mixtures: C Pressure C Enthalpy C Specific volume C Entropy C Temperature One can determine the ____________ of a saturated steam-water mixture given only the ____________. A. temperature; enthalpy B. temperature; pressure C. pressure; entropy D. pressure; specific volume
B.
Which one of the following is the approximate reactor coolant system subcooling margin when reactor coolant temperature is 280EF and pressurizer pressure is 400 psig? A. 165EF B. 168EF C. 265EF D. 268EF
B.
Given the following reactor coolant system (RCS) parameters, determine the approximate RCS subcooling margin. RCS pressure = 2,235 psig RCS hot leg temperature = 610EF A. 25EF B. 31EF C. 38EF D. 43EF
D.
The saturation pressure for water at 328EF is approximately... A. 85 psig. B. 100 psig. C. 115 psig. D. 130 psig.
A.
If a wet vapor is at 130EF and has a quality of 90 percent, its specific enthalpy is approximately... A. 1,015 Btu/lbm. B. 1,093 Btu/lbm. C. 1,118 Btu/lbm. D. 1,216 Btu/lbm.
A.
Given the following nuclear power plant conditions: Core Thermal Power = 3,400 MWt RCS Tave = 573.5EF S/G Tstm = 513.5EF A nuclear power plant is shut down for maintenance, during which 5.0 percent of the total steam generator (S/G) tubes are plugged. Upon completion of the maintenance, the plant is returned to 3,400 MWt with RCS mass flow rate and RCS temperatures unchanged. Which one of the following is the approximate new S/G steam pressure with the plant at 3,400 MWt? A. 711 psia B. 734 psia C. 747 psia D. 762 psia
C.
Main condenser hotwell condensate is 4EF subcooled at a temperature of 112EF. What is the condenser pressure? A. 1.78 psia B. 1.51 psia C. 1.35 psia D. 1.20 psia
B.
If steam pressure is 230 psia at a temperature of 900EF, what is the approximate amount of superheat? A. 368EF B. 393EF C. 506EF D. 535EF
C.
Which one of the following is the approximate amount of heat required to convert 3 lbm of water at 100EF and 100 psia to a saturated vapor at 100 psia? A. 889 Btu B. 1,119 Btu C. 2,666 Btu D. 3,358 Btu
D.
Saturated steam undergoes an ideal expansion process in an ideal turbine from 1,000 psia to 28 inches Hg vacuum. Approximately how much specific work is being performed by the turbine? A. 1,193 Btu/lbm B. 805 Btu/lbm C. 418 Btu/lbm D. 388 Btu/lbm
C.
1.0 x 106 lbm/hr saturated steam at 30 percent steam quality is leaving a main turbine and entering a condenser at 2.0 psia. Condensate is entering the hotwell at 118EF. Which one of the following is the approximate condenser heat transfer rate? A. 3.1 x 108 Btu/hr B. 5.8 x 108 Btu/hr C. 7.2 x 108 Btu/hr D. 9.9 x 108 Btu/hr
A.
Which one of the following is the approximate amount of heat required to convert 2.0 lbm of water at 100EF and 100 psia to a saturated vapor at 100 psia? A. 1,119 Btu B. 1,187 Btu C. 2,238 Btu D. 2,374 Btu
C.
A steam line is carrying steam at 500 psia and 507EF. Approximately how much ambient heat loss is required before moisture formation occurs in the steam line? A. 31 Btu/lbm B. 45 Btu/lbm C. 58 Btu/lbm D. 71 Btu/lbm
A.
Which one of the following is the approximate amount of heat required to convert 2.0 lbm of water at 100EF and 100 psia to a superheated vapor at 400EF and 100 psia? A. 1,119 Btu B. 1,159 Btu C. 2,238 Btu D. 2,318 Btu
D.
What is the specific heat (Btu/lbm-EF) of water at 300EF and 100 psia? A. 1.03 Btu/lbm-EF B. 1.11 Btu/lbm-EF C. 1.17 Btu/lbm-EF D. 1.25 Btu/lbm-EF
A.
With a nuclear power plant operating near rated power, air inleakage into the main condenser causes main condenser pressure to increase from 1.0 psia to 2.0 psia. Given the following: ¥ Initial main condenser condensate depression was 4EF. ¥ After the plant stabilizes, with main condenser pressure at 2.0 psia, main condenser condensate depression is 2EF. Which one of the following is the approximate increase in main condenser specific heat rejection needed to restore condensate depression to 4EF? A. 2 Btu/lbm B. 4 Btu/lbm C. 8 Btu/lbm D. 16 Btu/lbm
A.
Given the following: ¥ A nuclear power plant is operating near rated power. ¥ The main turbine is comprised of a single unit with no reheat. ¥ Main turbine inlet steam conditions are 900 psia and 100 percent quality. ¥ Ideal steam expansion is occurring in the main turbine. ¥ Main condenser pressure is 1.0 psia. Which one of the following is the approximate main condenser specific heat rejection needed to establish condensate depression at 4EF? A. 716 Btu/lbm B. 782 Btu/lbm C. 856 Btu/lbm D. 1,132 Btu/lbm
A.
The temperature of a saturated steam-water mixture is 467EF. Which one of the following additional parameter values, when paired with the temperature, provides insufficient data to determine the approximate steam quality of the mixture? A. Pressure at 499.96 psia B. Enthalpy at 977.33 Btu/lbm C. Entropy at 1.17 Btu/lbm -ER D. Specific volume at 0.817 ft3/lbm
A.
A steam line is carrying saturated steam vapor at 500 psia and 467EF. Approximately how much specific heat addition to the steam vapor is necessary to achieve 60EF of superheat? A. 31 Btu/lbm B. 45 Btu/lbm C. 58 Btu/lbm D. 71 Btu/lbm
B.
An ideal main turbine generator (MTG) is producing 1,000 MW of electrical power while being supplied with 100 percent quality steam at 920 psig. Steam supply pressure is then gradually increased to 980 psig at the same quality. Assume turbine control valve position and condenser vacuum remain the same. Which one of the following describes why the MTG output increases as steam pressure increases? A. Each lbm of steam entering the turbine has a higher specific heat. B. Each lbm of steam entering the turbine has a higher specific enthalpy. C. Each lbm of steam passing through the turbine expands to fill a greater volume. D. Each lbm of steam passing through the turbine performs increased work in the turbine.
D.
Which one of the following is the approximate amount of heat required to convert 2 lbm of water at 100EF and 100 psia to a saturated vapor at 100 psia? A. 560 Btu B. 1,120 Btu C. 2,238 Btu D. 3,356 Btu
C.
The following stable nuclear power plant conditions existed just prior to a plant shutdown for maintenance: Power = 100 percent RCS Tave = 572EF SG Tstm = 534EF During the shutdown, 5 percent of the total steam generator (SG) tubes were plugged. Which one of the following will be the approximate SG steam pressure when the plant is returned to 100 percent power? (Assume RCS mass flow rate and RCS Tave are the same as their pre-shutdown 100 percent power values.) A. 813 psia B. 841 psia C. 870 psia D. 900 psia
D.
A 100 ft3 vessel contains a saturated water-steam mixture at 1,000 psia. The water portion occupies 30 ft3 and the steam portion occupies the remaining 70 ft3. What is the approximate total mass of the mixture in the vessel? A. 1,547 lbm B. 2,612 lbm C. 3,310 lbm D. 4,245 lbm
A.
A nuclear power plant has been operating at full power for six months when a sustained station blackout occurs, resulting in a reactor trip and a complete loss of forced reactor coolant circulation. All means of reactor coolant injection and steam generator heat removal are unavailable. Reactor coolant system (RCS) pressure is being maintained at approximately 2,100 psia by operation of the pressurizer relief valves. The following conditions exist five minutes after the reactor trip: RCS pressure: 2,100 psia Core exit thermocouple (CET) temperature: 550EF With RCS pressure constant at 2,100 psia, which one of the following describes the future response of the CET temperature indication? A. CET indication will remain stable at approximately 550EF until the core becomes uncovered; then, CET indication will become erratic. B. CET indication will remain stable at approximately 550EF until the core becomes uncovered; then, CET indication will increase to approximately 643EF where it will become erratic. C. CET indication will steadily increase to approximately 643EF and stabilize; then, as the core begins to uncover, CET indication will increase further until it becomes erratic. D. CET indication will steadily increase until it becomes erratic.
C.
Main steam is being used to reheat high-pressure (HP) turbine exhaust in a moisture separator reheater (MSR). Given: ¥ The HP turbine exhaust enters the MSR reheater section as saturated steam (100 percent quality). ¥ The exhaust enters and exits the reheater section at 280 psia and a flow rate of 1.0E6 lbm/hr. ¥ The main steam heat transfer rate in the reheater section is 42.1E6 Btu/hr. Which one of the following is the approximate temperature of the HP turbine exhaust leaving the reheater section of the MSR? A. 450EF B. 475EF C. 500EF D. 525EF
B.
Saturated steam at 50 percent steam quality is leaving a main turbine at a flow rate of 1.0 x 106 lbm/hr and entering a condenser at 1.6 psia. Condensate is entering the hotwell at 112EF. Which one of the following is the approximate condenser heat transfer rate? A. 3.1 x 108 Btu/hr B. 3.8 x 108 Btu/hr C. 4.5 x 108 Btu/hr D. 5.2 x 108 Btu/hr
D.
A nuclear power plant is operating at 100 percent power. The main turbine has one high pressure (HP) unit and one low pressure (LP) unit. Main steam enters the HP unit of the main turbine with the following parameters: Pressure: 1,000 psia Quality: 100 percent The exhaust steam exits the HP unit at 200 psia, then goes through a moisture separator/reheater, and enters the LP units with the following parameters: Pressure: 200 psia Temperature: 500EF The main condenser pressure is 1.0 psia. Assume that each unit of the main turbine is 100 percent efficient. The higher enthalpy steam is being supplied to the ________ unit of the main turbine; and the greater moisture content is found in the exhaust of the ___________ unit. A. LP; LP B. LP; HP C. HP; LP D. HP; HP
A.
Consider a 100 lbm quantity of a steam-water mixture at standard atmospheric pressure. The mixture has a quality of 70 percent. Assume that pressure remains constant and there is no heat loss from the mixture. Which one of the following is the approximate heat addition needed to increase the quality of the mixture to 100 percent? A. 5,400 Btu B. 12,600 Btu C. 29,100 Btu D. 67,900 Btu
C.
An open vessel contains one pound-mass of water at 204EF and standard atmospheric pressure. If 16.0 Btu of heat is added to the water, the water temperature will rise by about ___________; and approximately ___________ of the water mass will become vapor. A. 8EF; 1 percent B. 8EF; 10 percent C. 16EF; 1 percent D. 16EF; 10 percent
A.
Water enters an ideal convergent-divergent nozzle with the following parameters: Pressure = 300 psia Temperature = 102EF Velocity = 50 ft/sec The velocity of the water at the throat of the nozzle is 200 ft/sec. Given that nozzles convert enthalpy to kinetic energy, and assuming no heat transfer to or from the nozzle, what is the approximate pressure of the water at the throat of the nozzle? A. 296 psia B. 150 psia C. 75 psia D. 50 psia
D.
An open vessel contains one pound-mass of water at 206EF and standard atmospheric pressure. Which one of the following will be caused by the addition of 12.0 Btu to the water? A. The water temperature will rise by about 6EF and none of the water will vaporize. B. The water temperature will rise by about 6EF and some of the water will vaporize. C. The water temperature will rise by about 12EF and none of the water will vaporize. D. The water temperature will rise by about 12EF and some of the water will vaporize.
B.
A feedwater pump discharges into a 16-inch diameter discharge line. Given the following: Pump discharge pressure: 950 psia Feedwater temperature: 300EF Feedwater velocity: 15.2 ft/sec What is the feedwater pump discharge flow rate in pounds-mass per hour (lbm/hr)? A. 1.1 x 106 lbm/hr B. 4.4 x 106 lbm/hr C. 1.8 x 107 lbm/hr D. 5.3 x 107 lbm/hr
B.
Saturated steam enters a frictionless convergent-divergent nozzle with the following parameters: Pressure = 850 psia Velocity = 10 ft/sec The steam at the throat of the nozzle has a subsonic velocity of 950 ft/sec. Given that nozzles convert enthalpy to kinetic energy, and assuming no heat transfer to or from the nozzle, what is the enthalpy of the steam at the throat of the nozzle? A. 1,162 Btu/lbm B. 1,171 Btu/lbm C. 1,180 Btu/lbm D. 1,189 Btu/lbm
C.
An ideal auxiliary steam turbine exhausts to the atmosphere. The steam turbine is supplied with saturated steam at 900 psia. Which one of the following is the maximum specific work (Btu/lbm) that can be extracted from the steam by the steam turbine? A. 283 Btu/lbm B. 670 Btu/lbm C. 913 Btu/lbm D. 1,196 Btu/lbm
A.
An ideal steam turbine exhausts to a steam condenser at 1.0 psia. The turbine is driven by saturated steam at 600 psia. What is the work (Btu/hr) of the steam turbine if the turbine steam flow rate is 200,000 lbm/hr? A. 7.9 x 106 Btu/hr B. 1.6 x 107 Btu/hr C. 7.9 x 107 Btu/hr D. 1.6 x 108 Btu/hr
C.
A steam turbine exhausts to a steam condenser at 1.0 psia. The steam turbine is supplied with saturated steam at 900 psia at a flow rate of 200,000 lbm/hr. What is the approximate rate of condensate addition to the condenser hotwell in gallons per minute (gpm)? A. 400 gpm B. 2,400 gpm C. 4,000 gpm D. 24,000 gpm
A.
What happens to the enthalpy of the saturated steam in a steam generator (SG) as heat addition to the feedwater increases SG pressure from 100 psia to 1,000 psia? A. The enthalpy increases during the entire pressure increase. B. The enthalpy initially increases and then decreases. C. The enthalpy decreases during the entire pressure increase. D. The enthalpy initially decreases and then increases.
B.
Water enters a positive displacement pump at 50 psig and 90EF. What is the available net positive suction head for the pump? A. 80 feet B. 114 feet C. 133 feet D. 148 feet
D.