[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
Fourier’s law of heat conduction applies to __________ surfaces. Read More »
CHEMICAL ENGINEERING, Heat Transfer[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
Fourier’s law applies to the heat transfer by Read More »
CHEMICAL ENGINEERING, Heat Transfer[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
Loss of heat from untagged steam pipe to the ambient air is by Read More »
CHEMICAL ENGINEERING, Heat Transfer A. absolute temperature (T)
B. I2
C. f
D. t
E. 1/r
A. p = 0, x = 0 and a = 1
B. p=l,x = 0anda = 0
C. p = 0, x = 1 and a = 0
D. x – 0, a + p = 1
E. a=0,x + p= 1.
where a = absorptivity, p = reflectivity, X = transmissivity
Depending on the radiating properties, a body will be opaque when _________________? Read More »
Heat Transfer A. p = 0, x = 0 and a = 1
B. p=l,T = 0anda = 0
C. p = 0, x = 1 and a = 0
D. x = 0, a + p = 1
E. a = 0, x + p = 1.
where a = absorptivity, p = reflectivity, x = transmissivity
Depending on the radiating properties, a body will be white when_________________? Read More »
Heat Transfer A. Krichoff’s law
B. Stefan’s law
C. Wien’ law
D. Planck’s law
E. Black body law
A. less than those for gases
B. jess than those for liquids
C. more than those for liquids and gases
D. more or less same as for liquids and gases
E. zerci
The thermal diffusivities for solids are generally__________________? Read More »
Heat Transfer A. absolute temperature
B. T2
C. T5
D. t
E. l/T
A. p = 0, x = 0 and a = 1
B. p= l,T = 0anda = 0
C. p = 0, x = 1 and a = 0
D. x = 0, a + p = 0
E. a = 0,x + p= 1.
where a = absorptivity, p == reflectivity, X = transmissivity
Depending on the radiating properties, a body will be black when_________________? Read More »
Heat Transfer