Multiple Choice
A body which transmits all the radiations falling on it is known as
A) Black body
B) Grey body
C) Transparent body
D) White body
E) None of the above
Correct Answer:
Verified
Correct Answer:
Verified
Q13: The value of the wavelength for maximum
Q14: A non-dimensional number generally associated with natural
Q15: The material preferred for the fabrication of
Q16: Gases have poor<br>A)Absorptivity<br>B)Transmissivity<br>C)Reflectivity<br>D)Reflectivity + absorptivity<br>E)Absorptivity + transmissivity
Q17: The unit of thermal diffusivity is<br>A)m<sup>2</sup>/hr°C<br>B)m<sup>2</sup>/hr<br>C)m/hr°C<br>D)kcal/m<sup>2</sup>-hr<br>E)m/hr
Q19: The process of removal of oil from
Q20: Unsteady state of heat flow occurs in<br>A)Flow
Q21: Prandtl number for liquid metals is generally
Q22: Heat conduction does not occur<br>A)If the parts
Q23: Hygrometer is used to measure<br>A)Convective heat transfer