Engineering Thermodynamics An adiabatic wall is one which Prevents thermal interaction Discourages thermal interaction Encourages thermal interaction Permits thermal interaction Prevents thermal interaction Discourages thermal interaction Encourages thermal interaction Permits thermal interaction ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The polytropic index (n) is given by log (p2/ p1)/log (v1/ v2) log [(p1v1)/(p2v2)] log (v1/ v2)/ log (p1/p2) log (p1p2)/log (v1v2) log (p2/ p1)/log (v1/ v2) log [(p1v1)/(p2v2)] log (v1/ v2)/ log (p1/p2) log (p1p2)/log (v1v2) ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Minimum work in compressor is possible when the value of adiabatic index ‘n’ is equal to 1 0.75 1.35 1.27 1 0.75 1.35 1.27 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Which of the following cycles has maximum efficiency? Brayton Carnot Rankine Stirling Brayton Carnot Rankine Stirling ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics No liquid can exist as liquid at 273°K Vacuum Centre of earth Zero pressure 273°K Vacuum Centre of earth Zero pressure ANSWER DOWNLOAD EXAMIANS APP