Induction and Exhaust Quiz 2

2. Which of the following would be a factor in the failure of a turbo-supercharged engine to develop full power at takeoff?

Improper adjustment of alternate heat valve control linkage.

5. What is the purpose of the density controller in a turbocharger system?

Limits the maximum manifold pressure that can be produced by the turbocharger at full throttle.

11. The purpose of a sonic venturi on a turbocharged engine is to

limit the amount of air that can flow from the turbocharger into the induction manifold.

4. Normalized manifold pressure is generally considered to be any manifold pressure below

30 inches Hg.

12. What is used to drive a supercharger?

Waste gate closed restricted exhaust gases through the turbine.

7. What directly regulates the speed of a turbo supercharger?

Waste gate position.

9. What are not the basic regulating components of a sea level (Lycoming Engine) boosted turbocharger system? 1. Exhaust bypass assembly. 2. Compressor assembly. 3. Pump and bearing casing. 4. Density controller. 5. Differential pressure controller.

1 & 4.

14. How do the turbines which are driven by the exhaust gases of a turbo-compound engine contribute to total engine power output?

By driving the crankshaft through suitable couplings.

8. What is the purpose of a sea level boosted turbocharger system for a small reciprocating aircraft engine?

Compresses air to maintain manifold pressure above sea level pressure to the critical altitude of the engine.

6. What is the purpose of the rate-of-change controller in a turbocharger system?

Controls the rate at which the turbocharger discharge pressure will increase.

13. The purpose of an intercooler or pre-cooler when used with a turbo supercharger is to cool the

exhaust gases before they come in contact with the turbo drive.

16. Compared to normally aspirated engines turbocharged engine exhaust systems operate at

higher temperatures and higher pressures

3. If the turbo supercharger waste gate is completely closed

most of the exhaust gases are blocked through the exhaust bypass.

10. The differential pressure controller in a turbocharger system

reduces bootstrapping during full-throttle operation.

1. Bootstrapping of a turbocharged engine is indicated by

the manifold pressure to drift in an attempt to reach a state of equilibrium.

15. Power recovery turbines used on some reciprocating engines are driven by the

velocity of the exhaust gases.