Induction + Engine Airflow

Question 1

A non-supercharged reciprocating engine is called what?

Answer 1

Naturally aspirated.

Question 2

The types of air intake filters:

Answer 2

1) Metal screen covered with flock.
2) Pleated paper filters
3) Polyurethane foam

Question 3

T/F

Polyurethane foam filter elements can be cleaned and reinstalled.

Answer 3

False.

They must be replaced when removed.

Question 4

If converting an aircraft engine to foam filtering, what is required?

Answer 4

Form 337 for an Alteration.

Question 5

Which type of filter(s) can be cleaned?

Answer 5

1) Flock type.

2) Pleated paper.

Question 6

Forms of induction system ice:

Answer 6

1) Throttle ice.
2) Fuel discharge Venturi ice.
3) Front of the air filter icing.

Question 7

Carburetor heat is obtained how?

Answer 7

By passing induction air around part of the exhaust system.

Question 8

When should carburetor heat NOT be used?

Answer 8

When aircraft is on the ground.

Question 9

When the carburetor heat control is in the HOT position the incoming air is ________.

Answer 9

Unfiltered

Question 10

What is the purpose of the supercharger?

Answer 10

To allow the aircraft to reach higher altitudes by increasing air pressure before it enters the cylinders.

Question 11

Superchargers are ______-driven.

Answer 11

Gear.

Question 12

Turbochargers are _________-driven.

Answer 12

Exhaust gas.

Question 13

A ________ is the controllable butterfly valve that determines the amount of exhaust gases that can leave the exhaust pipe.

Answer 13

Waste gate.

Question 14

When the waste gate is open, the speed of the turbocharger ________.

Answer 14

Reduces.

Question 15

The altitude above which a reciprocating engine will no longer produce its rated horsepower:

Answer 15

Critical altitude.

Question 16

Four types of Continental turbocharger controllers:

Answer 16

1) Absolute pressure controller.
2) Pressure ratio controller.
3) Rate of change controller.
4) Variable absolute pressure controller.

Question 17

_________ is also know as turbocharger discharge pressure.

Answer 17

Upper deck pressure.

Question 18

If there is no oil pressure, the waste gate will remain in what position?

Answer 18

Open

Question 19

The bellows in the absolute pressure controller (APC) senses what pressure?

Answer 19

Upper deck pressure

Question 20

At high upper deck pressures the APC bellows collapses and _______ (opens/closes) the connected valve

Answer 20

Opens

Question 21

When the absolute pressure controller valve opens, what does the waste gate do?

Answer 21

Opens

Question 22

A _______ eliminates the pilot’s need to manually maintain the safe critical altitude for the engine.

Answer 22

Pressure ratio controller

Question 23

The pressure ratio controller senses _______ and _______ pressures.

Answer 23

1) Ambient air pressure.

2) Upper deck

Question 24

If upper deck pressure exceeds _____ times the ambient pressure the pressure ratio controller valve will ______.

Answer 24

2.2

Open.

Question 25

The Textron-Lycoming components similar to the APC and pressure ratio controllers are the ______ and the ______.

Answer 25

Density controller.

Differential pressure controller.

Question 26

Define bootstrapping in terms of the turbocharger:

Answer 26

A transient increase in engine power that causes the turbo to speed up, which in turn causes the engine to produce more power.

Question 27

The differential pressure controller senses ______ and ______ pressures.

Answer 27

Upper deck.

Manifold.

Question 28

Aside from providing air for combustion, upper deck air is additionally used for:

Answer 28

Cabin pressure.

Fuel injection pumps.

Question 29

The turbine inlet is intended to ______, ______ and ______ incoming air.

Answer 29

Slow, compress and smooth.