Which of the following is not correct regarding the Mohr’s circle? Question 7 options: The two principal stress points are located at the opposite ends of a diameter. The center of the circle is always on the horizontal axis. The radius of the circle is equal to the magnitude of the maximum in-plane shear stress. If a state point moves by 2θ about the center along the circle, the corresponding stress element rotates by 2θ.

Refrigerant-134a enters the compressor of a refrigerator as superheated vapor at 0.14 mpa and -10°c at a rate of 0.05 ka/s and leaves at 0.8 mpa and 50°c. the refrigerant is cooied in the condenser to 0.72 mpa and 26'c. it is then throttled to 0.15 mpa. sketch the t-s diagram for the system and evaluate: 6) the rate of heat removai from the refrigerated space (kw), it) the power input to the compressor (kw), ii) the isentropic efficiency of the compressor (%), and iv) the cop of the refrigerator.