Steam Boilers, Engines, Nozzles and Turbines
In a uniflow engine

Steam enters at one end and exhausts at the centre
Steam enters and exhausts through the same port
Steam enters at the centre and exhausts at the other end
None of these

ANSWER DOWNLOAD EXAMIANS APP

Steam Boilers, Engines, Nozzles and Turbines
Spontaneous combustion is a phenomenon in which

Coal bursts into flame without any external ignition source but by itself due to gradual increase in temperature as a result of heat released by combination of oxygen with coal
All the fuel burns instantaneously producing high energy release
Fuel burns with less air
Explosion in furnace

ANSWER DOWNLOAD EXAMIANS APP