SSC JE Mechanical Engineering 25th May 2014 Shift-1
For the following questions answer them individually
Crude oil of kinematic viscosity 2.25 stokes flows through a 20 cm diameter pipe, the rate of flow being 1.5 litres/s. the flow will be
The power transmitted by a belt is maximum when the maximum tension in the belt compared to centrifugal tension is
A reaction turbine (hydraulic) discharge 34 m$$^3$$/s under a head of 8 m and with an overall efficiency of 91%. The power developed in MW is:
The equivalent evaporation (kg/hr) of a boiler producing 2000kg/hr. of steam with enthalpy content of 2426 kJ/kg from feed water at temp, $$40^\circ C$$ (liquid enthalpy = 168 kJ/kg; enthalpy of vaporization of water at $$100^\circ C$$ = 2258 kJ/kg) is:
For maximum work output in a two stage expansion gas turbine with perfect, the intermediate pressure (P) has the following relationship with maximum pressure ($$P_1$$) and minimum pressure ($$P_2$$) of the cycle:
