The most commonly applied oil heater, is the combination convection and __________ type heater because of its efficiency.
a) superheater
b) conduction
c) radiant
d) stationary
e) portable
Answer: C
The most commonly applied oil heater, is the combination convection and __________ type heater because of its efficiency.
a) superheater
b) conduction
c) radiant
d) stationary
e) portable
Answer: C