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Consider a simple gas turbine (Brayton) cycle and a gas turbine cycle with perfect regeneration. In both the cycles, the pressure ratio is 6 and the ratio of the specific heats of the working medium is 1.4. The ratio of minimum to maximum temperature1 AnswerAn ideal Brayton cycle, operating between the pressure limits of 1 bar and 6 bar -gate-mechanical-20111 AnswerIn a gas turbine the pressure ratio is 10. Temperature of gas at the inlet of turbine is 300 K. 1 AnswerA calorically perfect gas (specific heat at constant pressure 1000 J/kg.K) enters and leaves a gas turbine with the same velocity. The temperatures of the gas at turbine entry and exit are 1100 K and 400 K, respectively. The power produced is 4.6 MW and heat escapes at the rate of 300 kJ/s through the turbine casing. The mass flow rate of the gas (in kg/s) through the turbine is1 AnswerA rocket motor has combustion chamber temperature of 2600 K and the products have molecular weight of 25 g/mol and ratio of specific heats 1.2. GATE-Aerospace Engineering-Question-20121 AnswerWrite brief notes on the operation of open cycle gas turbine with a labeled diagram. Mention its advantages and disadvantages.1 AnswerThe intake pressure of a diesel engine is 1 bar and pressure at the end of the compression is 34 bar. The adiabatic exponent is 1.3 and the expansion ratio is 7. The diesel cycle efficiency in percentage is __________________ Gate-Agricultural-20161 AnswerIn the Rankine cycle for a steam power plant the turbine entry and exit enthalpies are 2803 kJ/kg and 1800 kJ/kg, respectively. The enthalpies of water at pump entry and exit are 121 kJ/kg and 124 kJ/kg, respectively. The specific steam consumption (in kg/k W.h) of the cycle is _______1 AnswerA diesel engine has a compression ratio of 17 and cut-off take place at 10% of the stroke. Assuming ratio of specific heats ( γ ) as 1.4, the air-standard efficiency (in percent) is______. (Gate mechanical engineering 2014)1 AnswerIf the heights of two cylinders are in the ratio of 4 : 3 and their radii are in the ratio of 3 : 4 then what is the ratio of their volumes? CBSE class 9 mathematics 1 AnswerKönigsberger ratio refers to: (-Gate geology and geophysics 2014)1 AnswerThe ratio of total deposits that a commercial bank has to keep with Reserve Bank of India is called:( choose the correct alternative) - CBSE Economics class 121 AnswerDivide 20 pens between Sheela and Sangeeta in the ratio of 3 : 2.-Mathematics-cbse-std 6th-Ratio and Proportion1 AnswerWhich one of the following statement is TRUE?1 AnswerThe values of enthalpy of steam at the inlet and outlet of a steam turbine in a Rankine cycle -gate-mechanical-20111 AnswerFind the ratio of the following:-Mathematics-cbse-std 6th-Ratio and Proportion1 AnswerIf the ratio of the sum of the first n terms of two A.Ps is (7n + 1) : (4n + 27), then find the ratio of their 9th terms. Mathematics CBSE class 10 20171 AnswerThe ideal static pressure coefficient of a diffuser with an area ratio of 2.0 is GATE-Aerospace Engineering-Question-20121 AnswerFind the ratio of 6 to 30.-Mathematics-cbse-std 6th-Ratio and Proportion6 AnswerIf a plant is shifted to cold temperature, which of the following changes would take place in its membrane? - Gate biotechnology 2014 question paper1 Answer