When an air conditioning coil is added to an existing furnace :

When an air conditioning coil is added to an existing furnace
 
  A) the existing blower settings should work
  B) The blower wheel may need to be reversed in summer
  C) The blower motor horsepower and speed may need to be increased
  D) the blower motor is wired to operate constantly

 Q. 2

When an evaporator coil is installed on a furnace, it is placed
 
  A) In a separate plenum that is parallel to the gas or oil fired furnace
  B) After (downstream) the gas or oil fired furnace
  C) Either before (upstream) or after (downstream) the gas or oil fired furnace
  D) Before (upstream) the gas or oil fired furnace