FAA (5)

In a hovering helicopter equipped with a tail rotor, directional control is maintained by. varying the pitch of the tail rotor blades. changing the tail rotor RPM. tilting the main rotor disk in the desired direction.

A radar altimeter indicates. altitude above ground level or AGL altitude. flight level (pressure) altitude. altitude above sea level.

The preferred way to make permanent repairs on composites is by. laminating on new repair plies. bonding on metal or cured composite patches. riveting on metal or cured composite patches.

An electrical type fuel quantity indicating system consists of an indicator in the flight deck and a float. in the tank that moves a connecting arm to the wiper on a variable resistor in the tank. attached to a rod that moves up or down in a calibrated cylinder. in the tank that operates with alternating current and uses constant resistance in a circuit to drive a ratiometer-type indicator.

(Refer to Figure 17.) What is the purpose of the pump crossfeed valve?. Allow operation of engines from one tank. Balance the fuel in the tanks. Allow operation of the left engine when the right fuel-boost pump is inoperative.

MS20426AD-6-5 indicates a countersunk rivet which has. an overall length of 5/16 inch. a shank length of 5/16 inch (excluding head). a shank length of 5/32 inch (excluding head).

Integrated drive generators (IDG) employ a type of high output AC generator that utilizes. a brushless system to produce current. brushes and slip rings to carry generated DC exciter current to the rotating field. battery current to excite the field.

When must the emergency locator transmitter (ELT) battery be replaced (other than reading the replacement date)?. When the transmitter has been in use for more than one cumulative hour. Must be replaced annually or if the five-G switch has been activated. When the transmitter has been tested more than ten times. When the transmitter has been in use for more than two cumulative hours.

Lockout deboosters are primarily pressure reducing valves that. allow full debooster piston travel without fluid from the high pressure side entering the low pressure chamber. cannot allow full debooster piston travel without fluid from the high pressure side entering the low pressure chamber. must be bled separately after brake bleeding has been completed. allow full debooster piston travel without fluid from the low pressure side entering the high pressure chamber.

Where would you find the operating conditions that make a 100-hour inspection mandatory?. 14 CFR Part 91. 14 CFR Part 43. 14 CFR Part 23.

Quick-disconnect couplings in hydraulic systems provide a means of. quickly connecting and disconnecting hydraulic lines without loss of fluid or entrance of air into the system. easily replacing hydraulic lines in areas where leaks are common. quickly connecting and disconnecting hydraulic lines and eliminate the possibility of contaminates entering the system.

When dope-proofing the parts of the aircraft structure that come in contact with doped fabric, which of the following provide an acceptable protective coating?. Aluminum foil and cellulose tape. Resin impregnated cloth tape and cellulose tape. Aluminum foil and resin impregnated cloth tape.

The method of mounting aircraft instruments in their respective panels depends on the. design of the instrument case. instrument manufacturer. design of the instrument panel.

What is the ratio of turns between the primary coil winding and the secondary coil winding of a transformer designed to triple its input voltage?. Primary will have one-third as many turns as its secondary. Primary will have twice as many turns as its secondary. Primary will have three times as many turns as its secondary.

Engine mount members should preferably be repaired by using a. larger diameter tube with fishmouth and rosette welds. larger diameter tube with fishmouth and no rosette welds. smaller diameter tube with fishmouth and rosette welds.

As a general rule, which statement is true regarding fuel leaks?. Stains, seeps, and heavy seeps (in addition to running leaks), are considered flight hazards when located in unvented areas of the aircraft. Stains, seeps, and heavy seeps are not flight hazards. All fuel leaks regardless of location or severity are considered a hazard to flight.

Which of the following are generally characteristic of carbon/graphite fiber composites?. Stiffness, high compressive strength, and corrosive effect in contact with aluminum. Flexibility, high compressive strength, and corrosive effect in contact with aluminum. Ability to conduct electricity.

What component is the sensing device in an electromechanical autopilot system?. Gyro. Servo. Controller.

The position of the thermostatic expansion valve in a vapor-cycle cooling system is determined by temperature and pressure of the. freon in the outlet of the evaporator. freon entering the evaporator. air in the outlet of the condenser.

A rivet set used to drive MS20470 rivets should. have a slightly greater radius than the rivet head. have the same radius as the rivet head. be nearly flat on the end, with a slight radius on the edge to prevent damage to the sheet being riveted.

When testing a 406 MHz emergency locator transmitter (ELT). care must be taken as the unit could send an emergency signal, activating search and rescue (SAR) agencies. testing inside of a metal hangar will prevent detection of an emergency ELT signal. the unit sends a test signal that will not generate an emergency signal.

The type of fuel-boost pump that separates air and vapor from the fuel before it enters the line to the carburetor is the. centrifugal-type pump. gear-type pump. sliding vane-type pump.

A resurfaced soldering iron cannot be used effectively until after the working face has been. tinned. fluxed. polished.

The function of a CRT in an EFIS is to. display alphanumeric data and representations of aircraft instruments. allow the pilot to select the appropriate system configuration for the current flight situation. receive and process input signals from aircraft and engine sensors and send the data to the appropriate display.

When patching a plywood skin, abrupt changes in cross-sectional areas which will develop dangerous stress concentration should be avoided by using. circular or elliptical patches. square patches. doublers with any desired shaped patches.

When repairing a small hole on a metal stressed skin, the major consideration in the design of the patch should be. the shear strength of the riveted joint. to use rivet spacing similar to a seam in the skin. that the bond between the patch and the skin is sufficient to prevent dissimilar metal corrosion.

When using an ohmmeter to check the continuity of a generator field coil, the coil should. show very low resistance if it is a series field coil. be removed from the generator housing. show high resistance when the meter prods are connected to the terminals of the coil.

In cases of elongated bolt holes in a wood spar or cracks in the vicinity of boltholes. a new section of spar should be spliced in or the spar replaced entirely. it is permissible to ream the hole, plug with hardwood, and redrill. the spar may be reinforced by using hardwood reinforcing plates.

Aircraft structural units, such as spars, engine supports, etc., which have been built up from sheet metal, are normally. repairable, using approved methods. repairable, except when subjected to compressive loads. not repairable, but must be replaced when damaged or deteriorated.

What is the purpose of refrigerating 2017 and 2024 aluminum alloy rivets after heat treatment?. To retard age hardening. To accelerate age hardening. To relieve internal stresses.

Overinflated aircraft tires may cause damage to the. wheel flange. brake linings. wheel hub.

What will be the result if the instrument static pressure line becomes disconnected inside a pressurized cabin during cruising flight?. The altimeter and airspeed indicator will both read low. The altimeter and airspeed indicator will both read high. The altimeter will read low and the airspeed indicator will read high. The altimeter will read high and the airspeed indicator will read low.

Hydraulic fluid reservoirs are sometimes designed with a standpipe in one of the outlet ports in order to assure emergency supply of fluid. The outlet port with the standpipe in it furnishes fluid to the. normal system power pump. emergency pump when the fluid supply to the normal system has been depleted. emergency pump at any time it is required.