Refer to Q7, and Express the answer in btu/lb.

1.	Refer to Q7, and Express the answer in btu/lb.
A.	0.0421 btu/lb
B.	0.0532 btu/lb
C.	0.0514 btu/lb
D.	0.0432 btu/lb
Answer» D. 0.0432 btu/lb

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Refer to Q7, and Express the answer in btu/lb.
Water is pumped from a storage tank through a tube of 3.0 cm inside diameter at the rate of 0.001 m3 /s. What is the kinetic energy per kg water in the tube?
Refer to Q4 and estimate the maximum refrigeration load imposed by this freezing installation assuming the fans but not their motors are in the tunnel.
It is desired to freeze 10,000 loaves of bread each weighing 0.75 kg from an initial room temperature of 18 C to a final temperature of -18 C. The bread-freezing operation is to be carried out in an air-blast freezing tunnel. It is found that the fan motors are rated at a total of 80 horsepower and measurements suggest that they are operating at around 90% of their rating, under which conditions their manufacturer s data claims a motor efficiency of 86%. If 1 ton of refrigeration is 3.52 kW, estimate the maximum refrigeration load imposed by this freezing installation assuming that fans and motors are all within the freezing tunnel insulation and the heat-loss rate from the tunnel to the ambient air has been found to be 6.3 kW. Extraction rate from freezing bread (maximum) = 104 kW
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If 35,000kg of whole milk containing 4% fat is to be separated in a 6 hour period into skim milk with 0.45% fat and cream with 45% fat, what are the flow rates of the two output streams from a continuous centrifuge which accomplishes this separation? (Basis 1 hour s flow of whole milk.)
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Refer to Q7, and Express the answer in btu/lb.

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