Volume 4

The engine section from which bleed air is usually taken is the?

What is the approximate temperature and pressure of engine bleed air as it is tapped from the engine compression section?

Which component determines the amount of bleed air bled from a gas turbine compressor?

What engine bleed air component prevents a loss of air through the engine when it is shutdown?

What component stops the flow of air to the air-conditioning system?

Why are orifices installed between the air source and the air-conditioning system?

What is the bleed air system component that protects downstream components from excessive pressure by controlling the airflow?

The amount of airflow through a pressure limiter is effected by each of these?

The flow control valve control in the bleed air air-conditioning system controls flow by maintaining a constant differential pressure between the?

To remedy the limitations of a flow control valve, which bleed air system component is usually installed upsteam of the flow control valve?

What is the bleed air system component that modulates to maintain a constant downstream air pressure?

The lockout butterfly of the airflow regulator has an offset center of rotation. This design gives the butterfly a pressure that is unbalanced towards which position?

After replacing a bleed air system air-conditioning airflow regulator fusible plug, you must also reset the?

The downstream air temperature of the bleed air air-conditioning system has exceeded the predetermined temperature. This has caused the butterfly to close. What flow control and shutoff valve component will now open?

While installing a bleed air system bolted flange face duct end, you use a new crush-type gasket, align the flange, and insert the bottom bolts first to form a cradle. Then, you install the remaining bolts and tighten all the nuts. After installation is complete you perform an operational check that reveals a leak. From the above information what important procedure did you overlook?

What type of high-pressure/high-temperature ducting does not require a gasket?

What corrective action should be taken when a compressible flange duct end becomes distorted?

Which lubricant can be used on a beaded channel clamp sleeve to ease installation?

Expansion joints in bleed air systems are best used on?

An operation check of the bleed air system consists of an electrical operational checkout of the?

Leaks can best be detected during an operational check of the bleed air distribution system by?

Bleed air leaks are permissible around?

You perform a bleed air system leakage check using the pressure decay method with aircraft engine; the time for the pressure to drop 30 psi took 11 seconds. This indicates that the system leakage test?

Low engine pressure ratio (EPR) could be caused by a bleed air system that has?

An excessive pressure in the bleed air system can cause an ususually high cockpit temperature due to?

The small drill hole in the outlet of some engine bleed air shutoff valves serves to?

An aircraft's bleed air cooling air system precooler is also known as the?

A precooler assembly is usually a self-contained cooling package with its own?

Skip #29

Hot bleed air used for air-conditioning is cooled in a heat exchanger by?

To create a greater cooling effect, atomized water is sprayed across the inlet of the bleed air system secondary heat exchanger by the?

One purpose of the fan in the bleed air system cooling turbine and fan assembly is to prevent?

Bleed air system water separators remove 70 to 85 percent of the moisture that accumulates in the conditioned air. This is accomplished as a result of?

The bleed air system water separator anti-icing system prevents the condenser bag from icing by keeping turbine?

The bleed air system component that causes the aircraft cooling turbine to slow down when an icing condition occurs is the?

What air source ventilates the cockpit when smoke or fumes are discharged from the air-conditioning system?

When a fighter aircraft air-conditioning system is being operated on the ground, the ram air necessary to cool the bleed air flowing through the heat exchangers is provided by the?

How is the warning light in the cockpit activated if duct pressure on a fighter air-conditioning system becomes excessive?

The temperature of conditioned air going to the crew compartment depends on the position of the?

Where does the final stage of cooling take place before the conditioned air enters the crew area of a fighter aircraft?

What air-conditioning component prevents excessive moisture from reaching the cockpit of a fighter aircraft?

Bleed air inlet pressure is maintained at 40 psig (at sea level) on a bomber air-conditioning system (ACS) by the?

On a bomber aircraft, the cabin ducting manual control valves are closed and the cabin zone controller is calling for heat. Under these conditions, the component that keeps the hot air supply ducts and couplings from rupturing is the?

An increase or decrease in control pressure causes a distinct butterfly position for the flow control valve in the bomber ACS. The increase or decrease is sensed by the flow control?

The turbine inlet sensor on a cargo air-conditioning system has sensed a temperature in excess of 210 F. This will cause what component to close?

The cargo aircraft temperature control component that produces an electrical signal that causes the temperature control valve to increase or decrease compartment temperature as required to correct an unbalanced bridge condition is the temperature conrol?

Pressure to the floor heat ejector on a cargo aircraft floor heat system is regulated by the?

On a cargo type aircraft, the function of the floor heat system pneumatic anticipator is to?

The purpose of the anti-G suit system is to supply air pressure to?

The probable cause of a partially effective windshield defogging system is?

Which adjustment potentiometer adjusts the width of the NESA glass temperature range?

If #4 and #5 NESA pilot's window are inoperative and #3 window is operating satisfactory, the probable cause is the?

To determine if the NESA autotransformer is operating properly, what power requirement should be applied after you disconnect leads X1 or X2?

The venturi in the windshield rain removal system?

Bleed air airflow through the anti-icing distribution tube is modulated by the control valve in response to temperature changes that are sensed by the?

During aircraft takeoff, the air-to-air heat exchanger outlet temperatures exceed the normal operating ranges. The air-conditioning system components that could cause this condition are faulty ground-cooling?

During flight, the air-condtitioning system is delivering only cold air, this malfunction could be caused by the?

Which condition will not cause high temperatures in the cockpit during group operation?

Which pressurization range maintains a constant cabin pressure?

The action of the outflow valve in a fixed-isobaric, single-differential pressurization system is controlled by?

Which section of the dual-differential cabin pressure regulator prevents the outflow calve from slamming shut and causing a rapid buildup of cabin pressure?

If the dual-differential cabin pressure regulator should fail during flight, cabin pressure would be maintained by the?

The isobaric range of a pressurization system can be varied by the?

The manual control calve in the cariable isobaric pressurization system is used as an alternate when the?

Which component provides the control by which the canopy seal is inflated and deflated in unison with the opening and closing of the canopy?

Which component allows each cabin pressurization system outflow safety valve to operate at the same time and to be subject to the same pressure?

Which condition would cause an aircraft to not pressurize?

If one outflow safety valve opens when the aircraft starts to pressurize, you should check the corresponding?

The timed pressure drop method determines cabin pressure leakage by measuring?

When performing a cabin pressure leakage test using the flow rate test method, you would use a flowmeter to indicate the?