Question No : 22
Fire tube boilers are limited to a maximum working pressure of
Question No : 23
A turbine is said to have an axial discharge when the steam leaves the blade tip at _________ to the direction of the blade motion.
Question No : 24
The air pressure at the fuel bed is reduced below that of atmosphere by means of a fan placed at or near the bottom of the chimney to produce a draught. Such a draught is called
Question No : 25
The ratio of the actual vacuum to the ideal vacuum in a condenser is called
Question No : 26
In a Parson's turbine stage, blade velocity is 320 m/s at the mean radius and rotor blade exit angle is 30°. For minimum kinetic energy of the steam leaving the stage, the steam velocity at the exit of the rotor will be
Question No : 27
Adiabatic process is
Question No : 28
In case of condensing steam engines, the pressure of steam in the cylinder during exhaust stroke is _________ the atmospheric pressure.