Multiple Choice
If a body reflects entire radiation incident on it, then it is known as
A) White body
B) Black body
C) Grey body
D) Transparent body
E) Opaque body
Correct Answer:
Verified
Correct Answer:
Verified
Q27: Transmission of heat by molecular collision is<br>A)Scattering<br>B)Transmission<br>C)Radiation<br>D)Convection<br>E)Conduction
Q28: In a shell and tube heat exchanger,
Q29: A hollow sphere with uniform interior temperature
Q30: A dimensionless number which is the ratio
Q31: Which rays have the least wavelength?<br>A)Ultraviolet<br>B)Cosmic rays<br>C)Irifrared<br>D)X-rays<br>E)Radio
Q33: A high value of Prandtl number indicates<br>A)rapid
Q34: The transfer of heat in case of
Q35: The thermal conductivity of wood depends upon<br>A)Density<br>B)Moisture
Q36: Ablation heat transfer method is used on<br>A)nuclear
Q37: Which one of the following will radiate