Engineering Thermodynamics The polytropic index (n) is given by log (p2/ p1)/log (v1/ v2) log (v1/ v2)/ log (p1/p2) log [(p1v1)/(p2v2)] log (p1p2)/log (v1v2) log (p2/ p1)/log (v1/ v2) log (v1/ v2)/ log (p1/p2) log [(p1v1)/(p2v2)] log (p1p2)/log (v1v2) ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The amount of heat required to raise the temperature of 1 kg of water through one Kelvin is called Specific heat at constant pressure None of these kilo-Joule Specific heat at constant volume Specific heat at constant pressure None of these kilo-Joule Specific heat at constant volume ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics During throttling process Heat exchange does not take place There is no change of internal energy of steam All of these No work is done by expanding steam Heat exchange does not take place There is no change of internal energy of steam All of these No work is done by expanding steam ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Which of the following is the correct statement? All engines are designed as reversible in order to obtain maximum efficiency. All the reversible and irreversible engines have the same efficiency. Irreversible engines have maximum efficiency. All the reversible engines have the same efficiency. All engines are designed as reversible in order to obtain maximum efficiency. All the reversible and irreversible engines have the same efficiency. Irreversible engines have maximum efficiency. All the reversible engines have the same efficiency. ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Which of the following parameters is constant for a mole for most of the gases at a given temperature and pressure Volume Enthalpy Entropy Mass Volume Enthalpy Entropy Mass ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The ___ is obtained when carbonization of coal is carried out at 500° to 700° C. Pulverized coal Hard coal Bituminous coal Soft coal Pulverized coal Hard coal Bituminous coal Soft coal ANSWER DOWNLOAD EXAMIANS APP
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