If an instalment plan quotes a monthly interest rate of 4%, the effective annual/yearly interest rate would be . 4% Between 4% and 48% 48% More than 48%

6–43 a food department is kept at 2128c by a refrigerator in an environment at 308c. the total heat gain to the food department is estimated to be 3300 kj/h and the heat rejection in the condenser is 4800 kj/h. determine the power input to the compressor, in kw and the cop of the refrigerator.