Aviation Maintenance Precautions Exam Solution Manual Already Passed

Aviation Maintenance Precautions Exam Solution Manual Already Passed Center of Gravity (CG) - Answers Point where the aircraft's weight is evenly distributed Datum - Answers Reference point for weight and balance calculations Positive and Negative Integers - Answers Rules for adding and subtracting numbers with opposite signs Rounding Off Calculations - Answers Adjusting numbers to a certain decimal place Fraction to Decimal Conversion - Answers Dividing the numerator by the denominator Unlike Fractions Addition/Subtraction - Answers Finding a common denominator before adding or subtracting Fraction Division - Answers Inverting the divisor and multiplying Decimal to Percent Conversion - Answers Multiplying by 100 and adding % sign Percent to Decimal Conversion - Answers Divide by 100 and remove % sign Ratio Representation - Answers Expressed as a fraction, with a colon, or using the word 'to' Proportion - Answers Equality statement between ratios Square of a Number - Answers Multiplying a number by itself Scientific Notation - Answers Representation of numbers using powers of 10 Area of Rectangle and Triangle - Answers Rectangle: Length x Width, Triangle: 1/2 x Base x Height Pi - Answers Constant relating circle circumference and diameter, approx. 3.1416 Trapezoid - Answers Four-sided figure with two parallel sides Density Altitude Risks - Answers Decreased engine and aerodynamic performance at higher altitudes Control Surface Repair Risks - Answers Incorrect repair can lead to control surface separation in flight Performance Data Risks - Answers Developing own data can lead to unsafe modifications Unit Confusion Risks - Answers Misinterpretation of data, overloading, or incorrect fueling Matter - Answers Anything with mass and volume States of Matter - Answers Solid, liquid, gas Kinetic Energy - Answers Energy of motion Work - Answers Result of force applied over a distance Lever Components - Answers Rigid bar and fulcrum for pivoting Second-Class Lever - Answers Type of lever with the load between the fulcrum and effort Thermal Expansion Impact - Answers All states affected, gas most significantly British Thermal Unit (BTU) - Answers Heat energy to raise 1 lb of water by 1°F Heat Transfer Methods - Answers Conduction, convection, radiation Absolute Zero - Answers Temperature where molecular motion stops Liquid Compression - Answers Liquids are generally incompressible Pressure Units - Answers Pounds per square inch (psi) Pressure Transmission in Liquids - Answers Equal transmission in all directions Force-Pressure-Area Relationship - Answers Force = Pressure x Area Speed of Sound at Sea Level - Answers Approximately 1,125 ft/s on a standard day Force Formula - Answers Force equals area times pressure Speed of Sound - Answers Approximately 661 knots or 340 meters per second Atmospheric Pressure at Sea Level - Answers 29.92 inches of Mercury or 1013.2 millibars Standard Day Temperature - Answers 59 deg. F or 15 deg. C Density Altitude Factors - Answers Temperature and atmospheric pressure Relative Humidity - Answers Ratio of actual moisture to saturation in the air Principle Forces on Airplane - Answers Lift, drag, thrust, and gravity Angle of Attack - Answers Angle between relative wind and airfoil chord line Wing Stall Factors - Answers Exceeding critical angle of attack causing airflow separation Flaps Effects - Answers Increase lift, drag, decrease stall speed Vortex Generator Function - Answers Prevents airflow separation on wing during high-speed flight Blade Flapping in Helicopter - Answers Compensates for lift dissymmetry on rotor blades Airflow in Helicopter Autorotation - Answers Downward in normal flight, upward in autorotation Friction - Answers Opposition to relative motion between objects in contact Kilowatt to Watts Conversion - Answers 1 kilowatt = 1,000 watts Ohm's Law - Answers Fundamental relationship in electrical circuits Elements of Ohm's Law - Answers Voltage, current, resistance Ohm's Law Equations - Answers E=I x R, R = E/I, or I= E/R Current Change with Voltage Doubling - Answers Current also doubles in a DC circuit Power Measurement in DC Circuits - Answers Measured in watts Elements of Electrical Circuit - Answers Energy source, load, and conductors Types of DC Circuits - Answers Series, parallel, and complex (series-parallel) Cells in 24-Volt Lead-Acid Battery - Answers 12 cells Specific Gravity of Charged Lead-Acid Battery - Answers Varies between 1.275 and 1.3 Specific Gravity Correction Temp Range - Answers Below 70 deg. F or above 90 deg. F Battery Storage Precaution - Answers Separate facilities for different battery types Ni-Cad Battery State of Charge - Answers Cannot be determined by electrolyte specific gravity Advantage of AC over DC - Answers Efficient long-distance power transmission Opposition to AC Current Flow - Answers Resistance, inductive reactance, capacitive reactance Inductance Definition - Answers Opposite induced voltage to applied voltage Capacitance Creation Component - Answers A capacitor Capacitor Electricity Storage - Answers Energy stored in electrostatic charge between conductors Impedance in AC Circuits - Answers Total opposition to current flow Ni-Cad Battery Failure Causes - Answers Faulty cells or cell imbalance Multimeter Measurements - Answers Typically measure voltage, current, and resistance. Tolerance on Aircraft Drawings - Answers Controls part fit; incorrect sizes can damage structure.