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Recent questions tagged power-engineering
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GATE2015-2-39
The total emissive power of a surface is $500 \: W/ m^2$ at a temperature $T_1$ and $1200 \: W/m^2$ at a temperature $T_2$, where the temperatures are in Kelvin. Assuming the emissivity of the surface to be constant, the ratio of the temperatures $\dfrac{T_1}{T_2}$ is $0.308$ $0.416$ $0.803$ $0.874$
Arjun
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Applications
Feb 24, 2017
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Arjun
27.4k
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gateme-2015-set2
power-engineering
applications
fluid-mechanics-and-thermal-science
0
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0
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GATE Mechanical 2014 Set 3 | Question: 41
A certain amount of an ideal gas is initially at a pressure $p_1$ and temperature $T_1$. First, it undergoes a constant pressure process $1$-$2$ such that $T_2$ = $3T_1$/$4$. Then, it undergoes a constant volume process $2$-$3$ such that $T_3$ = $T_1$/$2$. The ratio of the final volume to the initial volume of the ideal gas is $0.25$ $0.75$ $1.0$ $1.5$
Arjun
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in
Applications
Feb 19, 2017
by
Arjun
27.4k
points
gateme-2014-set3
fluid-mechanics-and-thermal-science
applications
power-engineering
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