A circuit has four inputs PQRS and five outputs UVWYZ. PQRS represents a binary integer.

UV represents the quotient and WYZ the remainder when PQRS is divided by 5 (UV and WYZ represent 2-bit and 3-bit binary numbers respectively).

Realize the circuit using:

(a) a ROM

(b) a minimum two-level OR-AND

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.