Asystem executes a power cycle while receiving 900 btu by heat transfer at a temperature of 900°r and discharging 800 btu by heat transfer at a temperature of 540°r. there are no other heat transfers. determine the cycle thermal efficiency. use the clausius inequality to determine σcycle, in btu/°r. determine if this cycle is internally reversible, irreversible, or impossible

When at a point two solid phase changes to one solid phase on cooling then it is known as a) eutectoid point b) eutectic point c) peritectic point d) peritectoid point

An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature

Which from the following instrument is commonly used to detect the high pitch butzing sound in bearings? [clo4] a)-digital ultrasonic meter b)-infrared camera c)-spectroscopic d)-vibrometer