63. A logging firm in Isabella operates a Diesel Electric Plant to supply its electric energy

requirements. During a 2 hour period, the plant consumed 250 gallons of fuel at 80°F and

produced 2900 kW-hrs. Industrial fuel is used at 30°API and was purchased at P30/li at 60°F.

Determine the overall thermal efficiency of the plant.

A. 26.08%

B. 34.23%

C. 28.00%

D. 18.46%