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) v2/v1 (v1 + v2)/v2 v1/v2 (v1 + v2)/v1 v2/v1 (v1 + v2)/v2 v1/v2 (v1 + v2)/v1 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics According to First law of thermodynamics, Total energy of a system remains constant Total internal energy of a system during a process remains constant Work-done by a system is equal to the heat transferred by the system Internal energy, enthalpy and entropy during a process remain constant Total energy of a system remains constant Total internal energy of a system during a process remains constant Work-done by a system is equal to the heat transferred by the system Internal energy, enthalpy and entropy during a process remain constant ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The compression ratio for petrol engines is 5 to 8 10 to 20 15 to 30 3 to 6 5 to 8 10 to 20 15 to 30 3 to 6 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The molecular mass expressed in gram (i.e. 1 g - mole) of all gases, at N. T. P., occupies a volume of 0.224 liters 224 liters 22.4 liters 2.24 liters 0.224 liters 224 liters 22.4 liters 2.24 liters ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Carbonization of coal consists of Heating the wood with a limited supply of air to temperature not less than 280°C None of these Moulding the finely ground coal under pressure with or without a binding material Drying and crushing the coal to a fine powder Heating the wood with a limited supply of air to temperature not less than 280°C None of these Moulding the finely ground coal under pressure with or without a binding material Drying and crushing the coal to a fine powder ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The absolute zero temperature is taken as -273°C 273°C 237°C -237°C -273°C 273°C 237°C -237°C ANSWER DOWNLOAD EXAMIANS APP
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