Engineering Thermodynamics In an isothermal process, the internal energy First increases and then decreases Decreases Increases Remain constant First increases and then decreases Decreases Increases Remain constant ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics If a system after undergoing a series of processes, returns to the initial state then Process is executed in closed system cycle Its entropy will change due to irreversibility Sum of heat and work transfer will be zero Process is thermodynamically in equilibrium Process is executed in closed system cycle Its entropy will change due to irreversibility Sum of heat and work transfer will be zero Process is thermodynamically in equilibrium ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The fuel mostly used in blast furnace for extracting pig iron from iron ores is Bituminous coal Soft coke Hard coke Pulverized coal Bituminous coal Soft coke Hard coke Pulverized coal ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The efficiency of Diesel cycle with decrease in cut-off Decreases First increases and then decreases First decreases and then increases Increases Decreases First increases and then decreases First decreases and then increases Increases ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The expansion ratio (r) is the ratio of (where v1 = Volume at the beginning of expansion, and v2 = Volume at the end of expansion) (v1 + v2)/v1 v1/v2 v2/v1 (v1 + v2)/v2 (v1 + v2)/v1 v1/v2 v2/v1 (v1 + v2)/v2 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The general gas energy equation is (where Q1 - 2 = Heat supplied, dU = Change in internal energy, and W1 - 2 = Work done in heat units) Q1 - 2 = dU + W1 - 2 Q1 - 2 = dU - W1 - 2 Q1 - 2 = dU × W1 - 2 Q1 - 2 = dU/W1 - 2 Q1 - 2 = dU + W1 - 2 Q1 - 2 = dU - W1 - 2 Q1 - 2 = dU × W1 - 2 Q1 - 2 = dU/W1 - 2 ANSWER DOWNLOAD EXAMIANS APP
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