FAA (4)

In Gas Tungsten Arc (GTA) welding, a stream of inert gas is used to. prevent the formation of oxides in the puddle. concentrate the heat of the arc and prevent its dissipation. lower the temperature required to properly fuse the metal.

(8689) (Refer to Figure 15) What is the approximate drag load on an antenna with a frontal area of .137 square feet installed on an aircraft with a speed of 275 mph?. 3.387 pounds. 3.741 pounds. 3.592 pounds.

Which best describes cabin differential pressure?. Difference between cabin flight altitude pressure and mean sea level pressure. Difference between the ambient and internal air pressure. Difference between cabin pressure controller setting and actual cabin pressure.

Which of the following instruments will normally have range markings?. Altimeter. Cylinder head temperature gauge and airspeed indicator. Altimeter and airspeed indicator.

For doped and overlapping span-wise seams on a wing's leading edge, overlap the fabric at least 4 inches, and. cover with finishing tape at least 3 inches wide, with the tape centered on the leading edge of the wing. cover with finishing tape at least 4 inches wide, with the tape centered on the leading edge of the wing. cover with finishing tape at least 4 inches wide, with the tape centered at the outside edge of the overlap seam.

Fuel flow transmitters are designed to transmit data. mechanically. electrically. utilizing fluid power.

What are three methods of anti-icing aircraft windshields?. An electric heating element in the windshield, a heated air circulating system, and windshield wipers and anti-icing fluid. A blanket-type heating system, an electric heating element in the windshield, and a ribbon-type heating system. An electric heating element in the O windshield, a heated air circulating system, and a hot water system.

Microswitches are used primarily as limit switches to. limit generator output. control electrical units automatically. prevent overcharging of a battery.

What is ventilating air used for on a combustion heater?. Provides combustion air for ground blower. Carries heat to the places where needed. Provides air required to support the flame.

What is the material layer used within the vacuum bag pressure system to absorb excess resin during curing called?. Bleeder. Breather. Release.

What markings must be placed on or near each appropriate fuel filler cover on standard category aircraft?. The word 'Avgas' and the minimum fuel grade, and the total fuel tank capacity. The word 'Avgas' and the minimum fuel grade or designation for the engines, and the usable fuel tank capacity. The word 'Avgas' and the minimum fuel grade.

Nose gear centering cams are used in many retractable landing gear systems. The primary purpose of the centering device is to. align the nosewheel prior to touchdown. engage the nosewheel steering. center the nosewheel before it enters the wheel well.

How can it be determined that a vapor-cycle cooling system is charged with the proper amount of freon?. Air bubbles in the sight glass disappear. The compressor loads up and RPM decreases. Air bubbles appear in the sight glass.

Fiberglass laminate damage that extends completely through one facing and into the core. cannot be repaired. requires the replacement of the damaged core and facing. can be repaired by using a typical metal facing patch.

Which procedure is correct when using a reamer to finish a drilled hole to the correct size?. Turn the reamer in the cutting direction when enlarging the hole and in the opposite direction to remove from the hole. Turn the reamer only in the cutting direction. Apply considerable pressure on the reamer when starting the cut and reduce the pressure when finishing the cut.

Movement about the lateral axis (pitch) in a helicopter is effected by movement of the. collective pitch control. cyclic pitch control. tail rotor pitch control.

What is an important factor in selecting aircraft fuses?. The current exceeds a predetermined value. The voltage rating should be lower than the maximum circuit voltage. Capacity matches the needs of the circuit.

What type of remote-reading fuel quantity indicating system has several probes installed in each fuel tank?. Electromechanical. Electronic. Direct reading.

When soldering close fitting parts, solder is drawn into the space between the two parts by. capillary action. the dissimilar temperatures of the parts. the pressure caused by the flame of the soldering torch.

Which rivet may be used as received without further treatment?. 2024-T4. 2117-T3. 2017-T3.

As the angle of attack of an airfoil increases, the center of pressure will. move toward the trailing edge. remain stationary because both lift and drag components increase proportionally to increased angle of attack. move toward the leading edge.

What does a reciprocating engine manifold pressure gauge indicate when the engine is not operating?. Zero pressure. The differential between the manifold pressure and the atmospheric pressure. The existing atmospheric pressure.

How does acoustic emission testing detect defects in composite materials?. By picking up the 'noise' of any deterioration that may be present. By analyzing ultrasonic signals transmitted into the parts being inspected. By creating sonogram pictures of the areas being inspected.

Which of the following conditions will determine acceptance of wood with mineral streaks?. Careful inspection fails to reveal any decay. They produce only a small effect on grain direction. Local irregularities do not exceed limitations specified for spiral and diagonal grain.

(Refer to Figure 26) Where is the strongest signal for this antenna? (antenna larga). Below the antenna. Above the antenna. Ahead of the antenna.

A faint line running across the grain of a wood spar generally indicates. compression failure. shear failure. decay.