Learn Everything at One Place !

Slab made up of carbon steel is initially at a temperature of 500°C...

Q.  
Slab made up of carbon steel is initially at a temperature of 500°C (Ti) and it is exposed to air at 30°C (Ta). The thickness of the slab is 1 cm (L). What will be the temperature of the slab after one minute (t)? Assume that the convective heat transfer coefficient (h) on the surface of the slab is 40 W/m2K.


Answer & Explanation

Answer :   Option: A


Discuss below! No Explanation Available for This Question.

Similar Questions

Start Discussion :




Comments :
More Questions Heat and Mass Transfer:

Q.  
A body which absorb all the radiation falling on it regardless of its wavelength or direction is a

A. Black body

B. Gray body

C. White Body

D. None of these


Answer & Explanation

Q.  
The temperatures of two plates connected by a copper rod are maintained at (T1) 500 K and (T2) 350 K. Find the rate of heat transfer through the rod if the diameter (d) of the rod is 15 cm and length (L) is 1.5 m. Assume that the thermal conductivity is 0.4 kW/nK and there is no heat transfer on the surface of the rod.

A. 707 kW

B. 0.707 kW

C. 70.7 kW

D. 0.0707 kW


Answer & Explanation

Q.  
Prandtl and Reynolds analogy are same, when Prandtl number is

A. 0.5

B. 1

C. >2

D. 1.5


Answer & Explanation

Q.  
The frequency at which the electromagnetic radiation given off by a black body radiator is most intense, is completely determine by the black body's

A. Frequency

B. Size

C. Shape

D. Temperature


Answer & Explanation
(Click here) Practice More Questions/MCQ on Heat and Mass Transfer