Correct answer
B. Both A. & B.
Explanation
The correct answer is Both A. & B..
________ is used for determining the tensile strength of steels?
Wetted wall tower experiment determines the________?
Presence of bacteria in potable (drinking) water causes________?
Electrometallurgy is not involved in the extraction of ________ from its ore?
Internal energy is independent of the ________ for an ideal gas?
The effect of changing the evaporator temperature on COP as compared to that of changing the condenser temperature (in vapour compression refrigeration system) is________?