Steam Boilers, Engines, Nozzles and Turbines Fire tube boilers are Internally as well as externally fired Externally fired None of these Internally fired Internally as well as externally fired Externally fired None of these Internally fired ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines 100% efficiency of a thermal cycle cannot be achieved because of Frictional losses Non availability of ideal substance It is not possible to achieve 0°K temperature Leakage Frictional losses Non availability of ideal substance It is not possible to achieve 0°K temperature Leakage ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The efficiency of reaction turbine is maximum when (where α = Angle made by the absolute velocity ‘V’ at inlet) Vb = 0.5 V² cosα Vb = 0.5 V cosα Vb = V cos α Vb = V² cos α Vb = 0.5 V² cosα Vb = 0.5 V cosα Vb = V cos α Vb = V² cos α ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Hard coke is used in Cement industry Blast furnace Thermal power plant Domestic use Cement industry Blast furnace Thermal power plant Domestic use ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The critical pressure ratio is given by (where p₁ = Initial pressure of steam, and p₂ = Pressure of steam at throat or critical pressure) p₁/p₂ p₁ + p₂ p₂/p₁ p₁. p₂ p₁/p₂ p₁ + p₂ p₂/p₁ p₁. p₂ ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines At critical point, i.e. p=225.65 kg/cm², the latent enthalpy of vaporisation is Zero Maximum Minimum Depends on temperature also Zero Maximum Minimum Depends on temperature also ANSWER DOWNLOAD EXAMIANS APP
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