Quiz
Thermo Fluids Practice Final 1
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Perguntas do quiz (30)
1In turbines, heat transfer occurs primarily by conduction and convection
- AVerdadeiro
- BFalso
2Head losses are frictional forces that occur in ducts and pipes due to flow.
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3At free delivery, the net pump head is at a maximum.
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4A compressor is a type of blower that generates pressure differences in excess of 30 iwg.
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5Orifice plates disrupt the flow within a system, while balancing valves improve the flow within the system.
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6Mollier Diagrams are used to determine the efficiency of the pump, by looking at the expansion lines, entropy, and enthalpy.
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7CPVC, ABS, and PEX are all types of pipes used within systems.
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8Rankin cycle is a type of gas power cycle
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9I=B=R should be used over the DOE rating for boilers or water heaters with larger capacity.
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10In impulse turbines, steam expands in both stationary nozzles and across the moving blades.
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11Heat exchangers are devices that facilitate energy transfer between two fluids at different temperatures without mixing them.
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12Reynold's number is the ratio of convective to conductive heat transfer within a fluid flow.
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13Effectiveness Number of Transfer Units is a method used for both heat exchanger design and performance analysis of a heat exchanger.
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14NTU is the Number of Terminal Units within a turbine system.
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15Pump efficiency is the ratio of actual flow to the actual flow.
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16Availability is the access to the fluid throughout the pipe
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17Double Pipe Heat Exchangers distribute heat by having two different pipes move through a system that transfer heat in a larger space.
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18Reheaters reheat partially [blank_start]expanded steam[blank_end] and increase the performance and life of the turbine
- Aexpanded steam
19Effectiveness is a measure of the [blank_start]quality[blank_end] of a component design or performance.
- Aquality
20NTU values are typically [blank_start]lower[blank_end] than 3 to 5, depending on the heat exchanger configuration.
- Alower
21The rate of heat transfer across the surfaces in a heat exchanger is governed by the [blank_start]thermal resistance[blank_end] to heat transfer across those surfaces.
- Athermal resistance
22Another common way to refer to NPSH is NPSHA, which is the Net Pump Suction Head [blank_start]Available[blank_end].
- AAvailable
23IWG stands for inches of water [blank_start]gauge[blank_end].
- Agauge
24Reynold's number is used to characterize the [blank_start]flow[blank_end] regime.
- Aflow
25First Law Efficiency is based on actual energy use and does not take into account things like excess [blank_start]entropy[blank_end].
- Aentropy
26The three sections of the boiler are: the [blank_start]Economizer[blank_end], Evaporator, and Superheater.
- AEconomizer
27The two methods to find the inlet and outlet temperature of a feedwater heater are: [blank_start]DCA[blank_end] and [blank_start]TTD[blank_end]
- ADCA
- BTTD
28Which of the following are part of the conditions for general design?
- ADetailed specifications, evaluate concepts, perform feasibility studies.
- BFabricate and Manufacture
- CPresent design with results
- DRedesign after prototypes
- EResearch additional specifications after design
- FConduct an economic analysis
29Which of the following are general considerations when sizing a pipe?
- AFriction loss
- BShape of the duct
- CMaterial
30Which of the following are fundamentals with selecting pumps?
- ACapacity
- BNet Pump Head
- CWater Horsepower
- DBrake Horsepower
- ETransfer Units
- FAvailability
- GEfficiency
Informações
- Descrição
- Practice Final
- Autor
- Kathryn D
- Idioma
- English
- Visualizações
- 80
- Etiquetas
- Avaliação
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