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40問 • 1年前

ユーザ名非公開

通報

問題一覧

The primary condition(s) that allow(s) microorganisms to grow in the fuel in aircraft fuel tank is (are)

The presence of water

Boost pumps in a fuel system

Provide positive flow of fuel to the engine pump.

It is desirable that fuel lines have a gentle slope upward or downward and not have sharp curves or sharp rises and/or falls in order to

Prevent vapor lock

Kerosene is used as turbine engine fuel because

Kerosene has more heat per gallon and lubricates fuel system components

Where physical separation of the fuel lines from electrical wiring or conduit is impracticable, locate the fuel line

Below the wiring and clamp the line securely to the airframe structure

What are the principal advantages of the duplex fuel nozzle used in many turbine engines?

Provides better atomization and uniform flow pattern

What is the final authority for the details of carburetor overhaul?

The manufacturer’s recommendations

Which of the following turbine fuel filters has the greatest filtering action of any present day filter type?

Micron filter

When an electric primer is used, fuel pressure is built up by the

Booster pump

(Refer to Figure 7) What is the purpose of the fuel transfer ejectors?

To assist in the transfer of fuel from the main tank to the boost pump sump

Fuel pressure produced by the engine-driven fuel pump is adjusted by the

Relief valve adjusting screw

It is necessary to control acceleration and deceleration rates in turbine engines in order to

Prevent blowout or die-out

Fuel boost pumps are operated

To provide a positive flow of fuel to the engine

Maximum power is normally considered to be developed in a reciprocating engine with a fuel/air mixture ratio of approximately

12:1

Fuel crossfeed systems are used in aircraft to

Maintain aircraft stability

The fuel pump relief valve directs excess fuel to the

Inlet side of the fuel pump

What causes the fuel divider valve to open in a turbine engine duplex fuel nozzle?

Fuel pressure

The fuel systems of aircraft certificated in the standard classification must include which of the following?

A positive means of shutting off the fuel to all engines

If an engine equipped with a float-type carburetor backfires or misses when the throttle is advanced, a likely cause is that the

Accelerating pump is not operating properly

What is a characteristics of a centrifugal-type fuel boost pump?

It separates air and vapor from the fuel

A fuel strainer or filter must be located between the

Tank outlet and the fuel metering device

The purpose of the diaphragm in most vane-type fuel pumps is to

Compensate fuel pressures to altitude changes

Fuel pump relief valves designed to compensate for atmospheric pressure variations are known as

Balanced-type relief valves

How often should float carburetors be overhauled?

At engine overhaul

What precaution should be taken when putting thread lubricant on a tapered pipe plug in a carburetor float bowl?

Engage the first thread of the plug, then put a small amount of lubricant on the second thread and screw the plug in

During what period does the fuel pump bypass valve open and remain open?

When the boost pump pressure is greater then fuel pump pressure

Fuel lines are kept away from sources of heat, and sharp bends and steep rises are avoided to reduce the possibility of

Vapor lock

Where is the engine fuel shutoff valve usually located?

Aft of the firewall

What is the purpose of an engine-driven fuel pump bypass valve?

To prevent a damaged or inoperative pump from blocking the fuel flow of another pump in series with it

Which type of pump is commonly used as a fuel pump on reciprocating engines?

Vane

What is the purpose of the flow divider in a turbine engine duplex fuel nozzle?

Creates the primary and secondary fuel supplies

Excessively rich or lean idle mixtures result in

Incomplete combustion

Boost pumps in a fuel system

Provide a positive flow of fuel to the engine pump

A pilot reports that the fuel pressure fluctuates and exceeds the upper limits whenever the throttle is advanced. The most likely cause of the trouble is

A sticking fuel pump relief valve

A rotary-vane pump is best described as a

Positive-displacement pump

Which of the following statements concerning a centrifugal-type fuel boost pump located in a fuel supply tank is NOT true?

The centrifugal-type pump is classified as a positive displacement pump

Where should the main fuel strainer be located in the aircraft fuel system?

At the lowest point in the fuel system

The Federal Aviation Regulations require the fuel flow rate for gravity systems (main and reserve) to be

150 percent of the takeoff fuel consumption of the engine

Most large aircraft reciprocating engines are equipped with which of the following types of engine-driven fuel pumps?

Rotary-vane-type fuel pump

Which statement is true regarding proper throttle rigging of an airplane?

The throttle stop on the carburetor must be contacted before the stop in the cockpit

wood structure

wood structure

assembly and rigging

assembly and rigging

aircraft finishes

aircraft finishes

basic electricity

basic electricity

maintenance forms and record

ユーザ名非公開 · 36問 · 1年前

maintenance forms and record

wood structure

wood structure

wood structure

wood structure

FUEL METERING SYSTEM

FUEL METERING SYSTEM

INDUCTION AND ENGINE FLOW SYSTEM

ユーザ名非公開 · 39問 · 1年前

INDUCTION AND ENGINE FLOW SYSTEM

AIRLAW

AIRLAW

AIRLAW 2.0

AIRLAW 2.0

AIRLAW3.0

AIRLAW3.0

問題一覧

The primary condition(s) that allow(s) microorganisms to grow in the fuel in aircraft fuel tank is (are)

The presence of water

Boost pumps in a fuel system

Provide positive flow of fuel to the engine pump.

It is desirable that fuel lines have a gentle slope upward or downward and not have sharp curves or sharp rises and/or falls in order to

Prevent vapor lock

Kerosene is used as turbine engine fuel because

Kerosene has more heat per gallon and lubricates fuel system components

Where physical separation of the fuel lines from electrical wiring or conduit is impracticable, locate the fuel line

Below the wiring and clamp the line securely to the airframe structure

What are the principal advantages of the duplex fuel nozzle used in many turbine engines?

Provides better atomization and uniform flow pattern

What is the final authority for the details of carburetor overhaul?

The manufacturer’s recommendations

Which of the following turbine fuel filters has the greatest filtering action of any present day filter type?

Micron filter

When an electric primer is used, fuel pressure is built up by the

Booster pump

(Refer to Figure 7) What is the purpose of the fuel transfer ejectors?

To assist in the transfer of fuel from the main tank to the boost pump sump

Fuel pressure produced by the engine-driven fuel pump is adjusted by the

Relief valve adjusting screw

It is necessary to control acceleration and deceleration rates in turbine engines in order to

Prevent blowout or die-out

Fuel boost pumps are operated

To provide a positive flow of fuel to the engine

Maximum power is normally considered to be developed in a reciprocating engine with a fuel/air mixture ratio of approximately

12:1

Fuel crossfeed systems are used in aircraft to

Maintain aircraft stability

The fuel pump relief valve directs excess fuel to the

Inlet side of the fuel pump

What causes the fuel divider valve to open in a turbine engine duplex fuel nozzle?

Fuel pressure

The fuel systems of aircraft certificated in the standard classification must include which of the following?

A positive means of shutting off the fuel to all engines

If an engine equipped with a float-type carburetor backfires or misses when the throttle is advanced, a likely cause is that the

Accelerating pump is not operating properly

What is a characteristics of a centrifugal-type fuel boost pump?

It separates air and vapor from the fuel

A fuel strainer or filter must be located between the

Tank outlet and the fuel metering device

The purpose of the diaphragm in most vane-type fuel pumps is to

Compensate fuel pressures to altitude changes

Fuel pump relief valves designed to compensate for atmospheric pressure variations are known as

Balanced-type relief valves

How often should float carburetors be overhauled?

At engine overhaul

What precaution should be taken when putting thread lubricant on a tapered pipe plug in a carburetor float bowl?

Engage the first thread of the plug, then put a small amount of lubricant on the second thread and screw the plug in

During what period does the fuel pump bypass valve open and remain open?

When the boost pump pressure is greater then fuel pump pressure

Fuel lines are kept away from sources of heat, and sharp bends and steep rises are avoided to reduce the possibility of

Vapor lock

Where is the engine fuel shutoff valve usually located?

Aft of the firewall

What is the purpose of an engine-driven fuel pump bypass valve?

To prevent a damaged or inoperative pump from blocking the fuel flow of another pump in series with it

Which type of pump is commonly used as a fuel pump on reciprocating engines?

Vane

What is the purpose of the flow divider in a turbine engine duplex fuel nozzle?

Creates the primary and secondary fuel supplies

Excessively rich or lean idle mixtures result in

Incomplete combustion

Boost pumps in a fuel system

Provide a positive flow of fuel to the engine pump

A pilot reports that the fuel pressure fluctuates and exceeds the upper limits whenever the throttle is advanced. The most likely cause of the trouble is

A sticking fuel pump relief valve

A rotary-vane pump is best described as a

Positive-displacement pump

Which of the following statements concerning a centrifugal-type fuel boost pump located in a fuel supply tank is NOT true?

The centrifugal-type pump is classified as a positive displacement pump

Where should the main fuel strainer be located in the aircraft fuel system?

At the lowest point in the fuel system

The Federal Aviation Regulations require the fuel flow rate for gravity systems (main and reserve) to be

150 percent of the takeoff fuel consumption of the engine

Most large aircraft reciprocating engines are equipped with which of the following types of engine-driven fuel pumps?

Rotary-vane-type fuel pump

Which statement is true regarding proper throttle rigging of an airplane?

The throttle stop on the carburetor must be contacted before the stop in the cockpit