Steam Boilers, Engines, Nozzles and Turbines
For water, at pressures below atmospheric;

Melting point rises slightly and boiling point drops markedly
Melting point rises markedly and boiling point drops markedly
Melting point drops slightly and boiling point drops slightly
Melting point drops slightly and boiling point drops markedly

ANSWER DOWNLOAD EXAMIANS APP

Steam Boilers, Engines, Nozzles and Turbines
A regenerative steam cycle renders

Increased thermal efficiency
Decreased work output per unit mass of steam
Decreased work output per unit mass of steam as well as increased thermal efficiency
Increased work output per unit mass of steam

ANSWER DOWNLOAD EXAMIANS APP

Steam Boilers, Engines, Nozzles and Turbines
The object of producing draught in a boiler is

To discharge the gases of combustion to the atmosphere through the chimney
To exhaust the gases of combustion from the combustion chamber
To provide an adequate supply of air for the fuel combustion
All of the listed here

ANSWER DOWNLOAD EXAMIANS APP