Solve the MCQ Consider a simple ideal Rankine cycle with fixed turbine inlet conditions. What is the effect of lowering the condenser pressure on the steam quality at the turbine exit a. Incroase b. Decrease c. Remain the same 2. All radiations in a black body are a. Reflected b. Absorbed c. Transmitted 3. Overall heat transfer coefficient is used for heat transfer problems that include a. Radiation b. Convection c. Conduction and convection 4. A grey body is one whose absorptivity a. varies with temperature b. varies with wavelength of the incident radiation c. equal to its emissivity 5. In a heat exchange, doubling the mass flowrate of a fluid while leaving everything unchanged the temperature change of that fluid will a. decreases by 50% b. increase by 50% c. increases by 100% 6. If a heat exchanger LMTD is zero then heat transfer surface become a. Maximum b. Minimum c. Infinity 7. During stagnation process, kinetic energy of the fluid is converted to a. Enthalpy b. Entropy c. Pressure 8. When the fuel is burned and the water appears in the vapour phase, the heating value of fuel is called a. Enthalpy of formation b. Higher heating value c. Lower heating value
Solve the MCQ Consider a simple ideal Rankine cycle with fixed turbine inlet conditions. What is the effect of lowering the condenser pressure on the steam quality at the turbine exit a. Incroase b. Decrease c. Remain the same 2. All radiations in a black body are a. Reflected b. Absorbed c. Transmitted 3. Overall heat transfer coefficient is used for heat transfer problems that include a. Radiation b. Convection c. Conduction and convection 4. A grey body is one whose absorptivity a. varies with temperature b. varies with wavelength of the incident radiation c. equal to its emissivity 5. In a heat exchange, doubling the mass flowrate of a fluid while leaving everything unchanged the temperature change of that fluid will a. decreases by 50% b. increase by 50% c. increases by 100% 6. If a heat exchanger LMTD is zero then heat transfer surface become a. Maximum b. Minimum c. Infinity 7. During stagnation process, kinetic energy of the fluid is converted to a. Enthalpy b. Entropy c. Pressure 8. When the fuel is burned and the water appears in the vapour phase, the heating value of fuel is called a. Enthalpy of formation b. Higher heating value c. Lower heating value
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Solve the MCQ
Consider a simple ideal Rankine cycle with fixed turbine inlet conditions. What is the effect of lowering the condenser pressure on the steam quality at the turbine exit
a. Incroase
b. Decrease
c. Remain the same
2. All radiations in a black body are
a. Reflected
b. Absorbed
c. Transmitted
3. Overall heat transfer coefficient is used for heat transfer problems that include
a. Radiation
b. Convection
c. Conduction and convection
4. A grey body is one whose absorptivity
a. varies with temperature
b. varies with wavelength of the incident radiation
c. equal to its emissivity
5. In a heat exchange, doubling the mass flowrate of a fluid while leaving everything unchanged the temperature change of that fluid will
a. decreases by 50%
b. increase by 50%
c. increases by 100%
6. If a heat exchanger LMTD is zero then heat transfer surface become
a. Maximum
b. Minimum
c. Infinity
7. During stagnation process, kinetic energy of the fluid is converted to
a. Enthalpy
b. Entropy
c. Pressure
8. When the fuel is burned and the water appears in the vapour phase, the heating value of fuel is called
a. Enthalpy of formation
b. Higher heating value
c. Lower heating value
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