It is good design practice to select a steam coil size
a) so that 100% of the coil capacity is needed when the air temperature entering the coil is -1 degrees C
b) so that at least 40% of the coil capacity is needed when the air temperature entering the coil is -1 degree C
c) so that at least 80% of the coil capacity is needed when the air temperature at the coil inlet is -1 degree C
d) so that at least 10% of the coil capacity is needed when the air temperature at the coil inlet is -5 degrees C
e) so that it is twice the size that is required to handle the heating load
Answer: B