Airframe 1
What is the function of a vortex generator?
It is designed to delay or prevent separation of the boundary layer.
What happens to the stem of a self-plugging (friction lock) rivet when the rivet is installed?
The stem is pulled until it snaps off and the remaining projecting part is trimmed flush with the head.
Why are two antennas usually required for an ILS system?
The localizer and glideslope signals are transmitted on different frequencies.
Which of the five stresses is the most common cause of rivet failure?
Shear
What are some other names for a single-point fueling system?
An undenting or pressure fueling system.
What are the three axes of an airplane?
Longitudinal. lateral. and vertical.
Why do some aircraft have fuel jettison systems?
To allow the crew to reduce the weight of the aircraft down to or below the maximum allowable landing weight.
What factors cause spray paint sags and runs?
Inadequate surface preparation or paint sprayed on too thickly.
What regulation governs the application of the registration numbers to aircraft registered in the United States?
FAR Part 45
Are thermal switches wired in series or in parallel with each other?
Parallel
Name several secondary flight controls and describe their general purpose?
Secondary flight controls consist of various types to trim tabs such as balance tabs. anti-servo and servo tabs. and spring tabs. Their function is to assist the pilot in moving the controls and to trim the aircraft to fly hands-off.
What are the effects of arcing on an electrically heated windshield?
Localized overheating and damage to the windshield.
Why are electronic (capacitance-type) fuel quantity indicating systems more accurate than other types?
They measure the mass of the fuel instead of the volume.
What are the three different types of accumulators?
Piston. diaphragm. and bladder.
Where do you find the regulation that specifies the operating conditions that make 100-hour inspections mandatory?
FAR Part 91
By what usual means does the stall warning system in a small aircraft alert the pilot of an impending stall?
An audible alert and/or a warning light.
Which method of welding is less likely to cause buckling or warping of thin metal sheets?
Electric arc (or TIG) welding.
A drill bit used for drilling composites should have an included angle of how many degrees?
135 degrees.
What is the name of the effect that causes a gyro to respond to an applied force at a point 90 degrees further in the direction of rotation?
Gyroscopic precession
After equipment is installed in accordance with an STC. who must approve the return to service?
An A & P mechanic who holds an Inspection Authorization.
What is the function or purpose of reinforcing tape?
Reinforcing tape is used between the fabric and the rib stitching to prevent the lacing cord from cutting through the fabric.
Name several types of electrical devices that would be considered intermittent loads on an electrical system.
Landing gear. cowl and wing flap motors. radio transmitters.
Other than appearance. what is another reason for touching up painted surfaces?
Reduction or elimination of general corrosion problems.
Why should you avoid cleaning obstructions from the sensing holes in a pilot-static system with a tool?
The holes are aerodynamically critical.
Where would you find information on the acceptable limits of windshield delamination?
In reference material provided by the manufacturer.