190202b

Question 1

Engines that have a positive pressure forced into the cylinder, by an exhaust driven centrifugal compressor (turbo), are called:

Answer 1

Turbocharged engines

Question 2

What the reasons an engine may be turbocharged?

Answer 2

• It offsets the effects of decreased performance when operating at higher altitudes
• It increases the engines power output without adding much more weight
• It increases the power output without increasing engine size
  It compensates for varying load demands during operation
• It decreases emissions due to an increased combustion efficiency and fuel economy

Question 3

When an engine is turbocharged, the intake air temperature increases. What effect does this have on power output?

Answer 3

It decreases engine power output as the oxygen molecules are farther apart, therefore decreasing volumetric efficiency.