What does white smoke exhaust smoke indicate? A) Excessive ...

[newyorker26]

What does white smoke exhaust smoke indicate?
 
  A) Excessive fuel B) Insufficient fuel
  C) Coolant in combustion chamber D) Burning oil

Question 2

The voltage output of a zirconia oxygen sensor when the exhaust stream is lean (excess oxygen) is ________.
 
  A) Relatively high (close to 1 volt)
  B) About in the middle of the voltage range
  C) Relatively low (close to 0 volt)
  D) Either A or B, depending on atmospheric pressure

[stanleka1]

Answer to Question 1

C

Answer to Question 2

C