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What is the purpose of a turbocharger system for small reciprocating aircraft engine?

Compress air to main manifold pressure constant from sea level to the critical altitude of the engine

Repair of exhaust system components

Is not recommended to be accomplished in the field

What is the function of the differential pressure controller?

It controls all positions of the waste gate except at full open position

A bent cooling fin on an aluminum cylinder head should be

Left alone if no crack has formed

The purpose of a sonic Venturi on a turbochargered engine is so?

Limit the amount of air that can flow from the turbocharger into the cabin for pressurization

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

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

Reciprocating engine exhausts systems that have repairs or sloppy weld beads which protrude internally are unacceptable because they cause

Local hot spots

Ball joints in reciprocating engine exhaust systems should be

Loose enough to permit some movement

Increased engine heat will cause volumetric efficiency to

decrease

What are the three basic regulating components of a sea-level boosted turbocharger system?

1, 4, 5

Boost manifold pressure is generally considered to be any pressure above?

30 inches Hg

Dislodged internal muffler baffles on a small reciprocating engine may cause

Excessive exhaust back pressure

Augment tubes are part of which reciprocating engines system

Exhaust

The primary purpose of baffles and deflectors installed around cylinders of air cooled aircraft engines is to

For cooling air into close contact with all parts of the cylinder

What is the position of the cowl flaps during engine starting and warmup operations under normal conditions

Full open at all times.

What is used to drive a supercharger?

Gear train from the crankshaft

Compared to normally aspirated engines a turbocharged engine exhaust system operate

Higher temp at higher pressures

The position of the cowl flaps during normal cruise flight condition is

Closed

Bootstrapping of a turbocharged engine is indicated by?

A transient increase in engine power

The purpose of an inter cooler when used with a turbocharger is to cool the

Air entering the carburetor from the turbocharger

If the turbocharger water gate is completely closed?

All the exhaust gases are directed through the turbine

(1) some aircraft exhaust systems include an augmented system to draw additional air over the engine for cooling (2) augmented systems are used to create a low pressure area at the lower rear of the aircraft engine cowling

Both no. 1 and no. 2 are true

What type of nuts are used to hold an exhaust

Brass or heat resistant nuts

How should ceramic coated exhaust components be cleaned

By degreasing.

How do cowl flaps aid in cooling a horizontally opposed aircraft engine?

Controls the amount of air flowing around the cylinders.

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

Aircraft reciprocating engine cylinder baffles and deflectors should be repaired as required to prevent loss of

Cooling

Which of the following results in a decrease in volumetric efficiency

Part-throttle operation.

What could be a result of undetected exhuast system leaks in a reciprocating engine powered airplane

Pilot passenger incapacition caused by carbon monoxide entering the cabin

The differential pressure controller in a turbocharger system?

Reduces bootstrapping during party throttle operation

Select a characteristic of a good weld on exhuast stacks

The weld should taper off smoothly into the metal

Cylinder head temperatures are measure by means of an indicator and a

Thermocouple sending device

What is the purpose of an augmented used in some recip engine exhaust systems

To aid in cooling the engine

What is the purpose of an exhaust outlet guard on a small reciprocating engine

To prevent dislodged muffler baffles from obstructing the muffler outlet.

Which of the following defects would likely cause a hot spot on a recip engine cylinder

Too much cooling fin area broken off.

What directly regulates the speed of a turbocharger?

Turbine

The pressure between the turbocharger and the throttle valve is called?

Upper deck pressure

How should corrosion resistant steel parts such exhaust collectors cleaned

Use sand which has not previously been used in iron or steel

During ground operation of an engine, the cowl flaps should be in what position?

fully open

A broken cooling fin on a cylinder head

may be filed to smooth contours if damage and/or repair limits are not exceeded.

Most exhaust system failures result from thermal fatigue cracking in the areas of stress concentration. This condition is usually caused by

the high temperatures at which the exhaust system operates