Engineering Thermodynamics
An open system is one in which

Mass crosses the boundary but not the energy
Neither mass nor energy crosses the boundaries of the system
Both energy and mass cross the boundaries of the system
Mass does not cross boundaries of the system, though energy may do so

ANSWER DOWNLOAD EXAMIANS APP

Engineering Thermodynamics
Intensive property of a system is one whose value

Depends on the mass of the system, like volume
Is not dependent on the path followed but on the state
Is dependent on the path followed and not on the state
Does not depend on the mass of the system, like temperature, pressure, etc.

ANSWER DOWNLOAD EXAMIANS APP

Engineering Thermodynamics
Producer gas is obtained by

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

ANSWER DOWNLOAD EXAMIANS APP