Engineering Thermodynamics For a thermodynamic process to be reversible, the temperature difference between hot body and working substance should be Infinity Zero Minimum Maximum Infinity Zero Minimum Maximum 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 A gas is compressed in a cylinder by a movable piston to a volume one half its original volume. During the process 300 kJ heat left the gas and internal energy remained same. The work done on gas in Nm will be 300 Nm 300,000 Nm 3000 Nm 30 Nm 300 Nm 300,000 Nm 3000 Nm 30 Nm ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The efficiency of the Carnot cycle is (where T1 and T2 = Highest and lowest temperature during the cycle) 1 - (T2/T1) 1 - (T1/T2) 1 + (T2/T1) (T1/T2) - 1 1 - (T2/T1) 1 - (T1/T2) 1 + (T2/T1) (T1/T2) - 1 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)/v2 v2/v1 v1/v2 (v1 + v2)/v1 (v1 + v2)/v2 v2/v1 v1/v2 (v1 + v2)/v1 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The property of a working substance which increases or decreases as the heat is supplied or removed in a reversible manner, is known as Entropy Internal energy Enthalpy External energy Entropy Internal energy Enthalpy External energy ANSWER DOWNLOAD EXAMIANS APP
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