Engineering Thermodynamics A closed system is one in which Mass does not cross boundaries of the system, though energy may do so Neither mass nor energy crosses the boundaries of the system Mass crosses the boundary but not the energy Both energy and mass cross the boundaries of the system Mass does not cross boundaries of the system, though energy may do so Neither mass nor energy crosses the boundaries of the system Mass crosses the boundary but not the energy Both energy and mass cross the boundaries of the system 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 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 Specific heat at constant pressure ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics One reversible heat engine operates between 1600 K and T2 K and another reversible heat engine operates between T2 K and 400 K. If both the engines have the same heat input and output, then temperature T2 is equal to 1200 K 1000 K 1400 K 800 K 1200 K 1000 K 1400 K 800 K ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The heat supplied to the gas at constant volume is (where m = Mass of gas, cv = Specific heat at constant volume, cp = Specific heat at constant pressure, T2 - T1 = Rise in temperature, and R = Gas constant) mcp (T2 + T1) mcp (T2 - T1) mR (T2 - T1) mcv (T2 - T1) mcp (T2 + T1) mcp (T2 - T1) mR (T2 - T1) mcv (T2 - T1) ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The first law of thermodynamics is the law of Conservation of momentum Conservation of mass Conservation of heat Conservation of energy Conservation of momentum Conservation of mass Conservation of heat Conservation of energy ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The ideal efficiency of a Brayton cycle without regeneration, with increase in pressure ratio will Increase Increase/decrease depending on application Decrease Remain unchanged Increase Increase/decrease depending on application Decrease Remain unchanged ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS