Engineering Thermodynamics
A manufacturer claims to have a heat engine capable of developing 20 h.p. by receiving heat input of 400 kcal/mt and working between the temperature limits of 227° C and 27° C. His claim is

May be possible with lot of sophistications
Cost will be very high
Theoretically possible
Not possible

ANSWER DOWNLOAD EXAMIANS APP

Engineering Thermodynamics
Producer gas is obtained by

Carbonization of bituminous coal
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

ANSWER DOWNLOAD EXAMIANS APP