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- (8859) How do the turbines which are driven by the exhause gases of a turbo-compound engine contribute to total engine power output?
- A. By driving the crankshaft through sutable couplings.
- (8871) Compared to normally aspirated engines, turbocharged engine exhaust systems operate at:
- B. Higher temperatures and higher pressures.
- (8861) Power recovery turbines used on reciprocating engines are driven by the:
- C. Velocity of the exhaust gasses.
- (8837) The purpose of an intercooler when used with a turbocharger is to cool the:
- C. Air entering thecarburetor from the turbocharger.
- (8786) If the turbocharger waste gate is completely closed,:
- C. All the exhaust gasses are directed through the turbine.
- (8809) In an airplane equipped with an alternate air system, if the main air duct air filter becomes clogged, the:
- A. System will automatically allow warm, unfiltered air to be drawn into the engine.
- (8788) What is the purpose of the density controller in a turbocharger system?
- B. Limits the maximum manifold pressure that can be produced by the turbocharger at full throttle.
- (8782) Ad manifold pressure increases in a reciprocating engine, the:
- C. Density of the air in the cylinder increases.
- (8795) What is used to drive a supercharger?
- B. Gear train from the crankshaft.
- (8780) During full power output of an unsupercharged engine equipped with a float-type carburetor, in which of the following areas will the highest pressure exist?
- C. Carburetor air scoop.
- (8793) The differential pressure in a turbocharger system:
- A. Reduces bootstrapping during part-throttle operation.
- (8783) Which of the following statements regarding volumetric efficiency of an engine is true?
- C. It is possible to exceed 100 percent volumetric efficiency of some engines by the use of supercharges of the proper type.
- (8793.1) The pressure between the turbocharger and the throttle valve is called:
- C. Upper deck clearance.
- (8791) What is the purpose of a turbocharger system for a small reciprocating engine?
- C. Compresses air to maintain manifold pressure constant from sea level to the critical altitude of the engine.
- (8789) What is the purpose of the rate-of-change controller in a turbocharger system?
- B. Controls the rate at which the turbocharger discharge pressure will increase.
- (8790) What directly regulates the speed of a turbocharger?
- B. Waste gate.
- (8787) Boost manifold pressure is generally considered to be any manifold pressure above:
- C. 30 Inches in Hg.
- (8792) What are the three basic components of a sea-level boosted turbocharger?
- 1. Exhaust bypass assembly.
- 4. Density Controller.
- 5. Differential Pressure controller.
- B. 1,4,5.
- (8784) Bootstrapping of a turbocharged engine is indicated by:
- B. A transient increase in engine power.
- (8803) If carburetor or induction system icing is not present when carburetor heat in applied with no change in the throttle setting, the:
- A. Mixture will become richer.
- (8773) Carburetor icing is most severe at:
- A. Air temperatures between 30 and 40°F.
- (8808) In addition to causing accelerated wear, dust or sand ingested by a reciprocating engine may also cause:
- A. Silicone fouling of spark plugs.
- (8782) As manifold pressure increases in a reciprocating engine, the:
- C. Density of air in the air increases
- ( Eddy put this question into the review twice >_> )
- (8775) Carburetor icing on an engine equipped with a constant-speed propeller can be detected by:
- C. Decrease in manifold pressure with a constant RPM.
- (8804) When starting an engine equipped with a carburetor air heater, in what position should the heater be placed?
- B. Cold
- (8824) Which of the following assists in removing heat from the metal walls and fins of an air-cooled cylinder assembly?
- B. A baffle and cowl arrangement.
- (8838) Prolonged idling of an engine will usually result in:
- C. Foreign material buildup on spark plugs.
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