Engineering Thermodynamics
The index of compression ‘n’ tends to reach ratio of specific heats ‘y’ when

Flow is uniform and steady
Process is isothermal
Process is isentropic and specific heat does not change with temperature
Process is isentropic

ANSWER DOWNLOAD EXAMIANS APP

Engineering Thermodynamics
Producer gas is obtained by

Partial combustion of coal, coke, anthracite coal or charcoal in a mixed air steam blast
Passing steam over incandescent coke
Passing air and a large amount of steam over waste coal at about 650°C
Carbonization of bituminous coal

ANSWER DOWNLOAD EXAMIANS APP