As the refractory temperature increases, the combustion ...

[corkyiscool3328]

As the refractory temperature increases, the combustion efficiency
 
  A) increases B) fluctuates C) decreases D) stays the same

Question 2

Which types of oil feed system are generally self-purging?
 
  A) one pipe oil feed systems
  B) two pipe oil feed systems
  C) both one and two pipe systems are self purging
  D) both one and two pipe systems require manual purging

[chevyboi1976]

Answer to Question 1

A

Answer to Question 2

B

[corkyiscool3328]

Both answers were spot on, thank you once again

[chevyboi1976]

Great! Please up vote