Articles Posted in the " Thermodynamics " Category

  • MULTIPLE CHOICE QUESTION (MCQ) ANSWERS ON NOZZLES

    MULTIPLE CHOICE QUESTION (MCQ) ANSWERS ON NOZZLES

    MULTIPLE CHOICE QUESTION (MCQ) ANSWERS ON NOZZLES  The critical pressure ratio for initially dry saturated steam across a steam nozzle is (a) 0.582 (b) 0.546 (c) 0.578 (d) none Ans: (c) The critical pressure ratio for initially wet steam across a steam nozzle is (a) 0.582 (b) 0. 546 (c) 0.578 (d) None Ans: (a) 3. The […]


  • INTERVIEW SHORT MULTIPLE CHOICE QUESTION (MCQ) ANSWERS ON WATER AND STEAM

    INTERVIEW SHORT MULTIPLE CHOICE QUESTION (MCQ) ANSWERS ON WATER AND STEAM

    INTERVIEW SHORT MULTIPLE CHOICE QUESTION (MCQ) ANSWERS ON WATER AND STEAM Boiling point of water at 2 bar is (a) 1000C (b) 1100C (c) 1200C (d) None Ans: (c) 2. The triple point temperature  of water is (a) -56.20C (b) 0.010C (c) 374.150C (d) None Ans: (b) 3. The critical temperature  of water is (a) -56.20C (b) […]


  • MULTIPLE CHOICE QUESTION ANSWERS ( MCQ) ON ENTROPY AND THERMODYNAMIC CYCLES

    MULTIPLE CHOICE QUESTION ANSWERS ( MCQ) ON ENTROPY AND THERMODYNAMIC CYCLES

    MULTIPLE CHOICE QUESTION ANSWERS ( MCQ) ON ENTROPY AND THERMODYNAMIC CYCLES Entropy of a refrigerant is zero in S.I. units at a temperature of (a) 00C (b) -400C (c) +1000C (d) None Ans: (b) Change of entropy during heating at constant pressure is equal to (a) Cpln(T2/T1) (b) Cpln(V2/V1) (c) Cpln(T2/T1)+ Cpln(V2/V1) (d)None Ans: (a) Change of entropy from p1 to […]




  • IDEAL GAS, REAL GAS AND GAS LAWS

    IDEAL GAS, REAL GAS AND GAS LAWS

    IDEAL GAS, REAL GAS AND GAS LAWS A gas is a vapor with degree of superheat greater than 500C. Degree of superheat is degrees above the saturation temperature. Therefore air (NBP= -1940C), nitrogen (NBP = -1830C), oxygen (NBP = -1960C), argon (NBP = – 185.60C)     , hydrogen (NBP = – 2530C) and helium (NBP= – 2690C) are […]