Q.4. Two thermocouples (temperature measurement devices) are tested by inserting their probes in boil- ing water, recording the readings, removing and drying the probes, and then doing it again. The results of five measurements are as follows: T(°C)-Thermocouple A | 72.4 | 73.1 | 72.6 72.8 | 73.0 T(C) Thermocouple B 973 1014 98.701100.4 (a) For each set of temperature readings, calculate the sample mean, the range, and the sample (b) Which thermocoupie readings exhibit the higher degree of scatter? Which thermocouple is more standard deviation. accurate?

To design a steam turbine to produce 12,000 hp power. a engineer comsiders using a steady state stean low st 1160fr and engineer considers using a steady state steam flow at 1160°r and 450 psia to drive this steam turbine. the exhaust of the steam is cooled by the lake (vacuum). heat losing to the surroundings is measured at a rate of 555.55 btu/s. (a) sketch the system with the given conditions. (b) neglecting kinetic and potential energy changes from inlet to exit, determine the volumetric flow rate of the steam at the inlet, (ft'/hr). must clearly show unit conversions at crtical terms.