The average value of thermal conductivity for air at 20?C is about – McqOptions

MCQOPTIONS

1.	The average value of thermal conductivity for air at 20?C is about
A.	0.11
B.	0.011
C.	0.022
D.	None of the above
E.	Nichrome
Answer» D.

Discussion

No Comment Found

Related MCQs

Two bodies one hot and the other cold are kept in vacuum. What will happen to the temperature of the hot body after sometime?
If a body reflects entire radiation incident on it, then it is known as
In a psychrometric chart the abscissa represents
The highest value of thermal conductivity is expected for
Elongation of a rod when heated
Ablation heat transfer method is used on
Plank's law of radiation is applicable to
If the amount of radiant energy received per unit area per second from the sun is measured at the Earth, Mars and Jupiter it will be
The phenomenon of boiling the milk in an open container when milk spills over the vessel is termed as
The surface temperatures of a flat wall are 650?C and 450?C respectively and the thermal conductivity of the wall material is 0.30 kcal/m-hr-?C. The heat flux for a wall of 20 cm thickness will be