United Airlines Flight Simulator Technician Trade Practice Test

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• Which description best defines a silicon controlled rectifier (SCR)?
• In Boolean algebra, the notation XY means which operation?
• In a gyroscope, which principle explains its resistance to changes in orientation?
• What is the standard atmospheric pressure in inches of mercury (in.Hg) at sea level?
• Which statement best describes the difference between a turn coordinator and a turn-and-slip indicator?
• In the OSI model, Telnet resides in which layer?
• In an NPN transistor, applying base current controls current flow from which terminal to which?
• In the TCP/IP model, which layer provides end-to-end data transport and reliability when using TCP?
• Which instrument in aviation uses changes in ambient pressure to determine altitude?
• Which statement best describes IPv4 versus IPv6 addressing?
• Which statement correctly maps the three primary axes to their controlling flight surfaces on a conventional airplane?
• What do flaps on a wing primarily do?
• Newton's first law of motion states which of the following?
• Flight path angle is influenced by which three variables?
• Which equation relates pressure, volume, and temperature for a fixed amount of gas when conditions can change, i.e., the combined gas law?
• In resistor color codes, which color represents the digit 4?
• Which statement correctly describes how area affects hydraulic force at constant pressure?
• Which axis runs from nose to tail of the aircraft?
• What is the primary role of flip-flops in sequential digital circuits?
• DME operates in which frequency range?
• Angle of attack is defined as... and what should it not do in flight?
• What are the two fundamental principles that explain gyroscope behavior?
• When measuring resistance with a multimeter, what must be true about the circuit?
• What is a correct statement about accumulators with respect to energy storage?
• In a hydraulic system, what is the purpose of an accumulator and its precharge?
• Which instrument indicates the rate of climb or descent in feet per minute?
• What is the critical Mach number?
• In an ideal transformer, the secondary voltage is determined by the turns ratio. If the secondary has half as many turns as the primary, the secondary voltage is
• Which of the following is a type of hydraulic check valve?
• FTP stands for which protocol?
• What is the standard atmospheric pressure in hectopascals (hPa) at sea level?
• What is the impedance looked into the input of a transistor amplifier commonly called?
• During an ILS approach, what instrument displays horizontal deviation from the localizer course?
• What frequency range do VOR navigation aids operate in?
• Marker beacons on the ILS use which frequency?
• How many degrees off is the glide slope from horizontal usually?
• Pitch angle gauge in the cockpit shows pitch attitude. Which instrument provides this information?
• What is zero fuel weight?
• What is the typical value of gamma (γ), the ratio of Cp to Cv, for dry air?
• In a capacitor, which statement best describes the phase relationship between current and voltage?
• Compute 0x19 AND 0x1A in hexadecimal.
• In the Boolean expression f = (A + B + C) X Y, when will f be 1?
• Which flight control surface primarily controls pitch about the lateral axis?
• Which colors on a glideslope indicate a good approach?
• Which surfaces are the primary flight controls, and what are the three secondary surfaces along with their general functions?
• If your aircraft does not have DME, it must have ________.
• What is the formula for hydraulic force on a piston?
• MMI stands for which maintenance term?
• What principle does an altimeter rely on to display altitude?
• SMNP stands for which protocol?
• In Boolean algebra, AB + AC equals which property?
• When an instrument face displays a flag, what does this typically indicate?
• What is the standard atmospheric pressure in millibars at sea level?
• Which statement best describes the output impedance of a circuit?
• What is the standard atmospheric pressure in atmospheres (atm)?
• Which option represents a hydraulic rod seal?
• In a VOR/DME navigation setup, what does DME provide?
• QMS stands for which term?
• ESD stands for Electrostatic Discharge. How should you handle sensitive electronics to prevent ESD damage?
• Is DME required when flying an LOC approach alone?
• Which meter function is used to measure resistance?
• In a skid, where does the slip-skid ball move and what does that indicate?
• Which arithmetic operation is common to binary, decimal, and hexadecimal number systems?
• Capacitors slow the change of current in a circuit because they take time to charge.
• Which method reverses the direction of a three-phase motor?
• What is a loopback address used for?
• Absolute humidity measures what?
• If two pistons with different areas are connected by hydraulic fluid, how does displacement relate?
• What does FMCW stand for and what is it used for?
• Which formula gives the energy stored in a capacitor?
• Radio waves travel at approximately how many kilometers per second in air?
• What best describes a servo motor in control systems?
• What are two common sources to drive gyroscopic instruments?
• Are localizer frequencies UHF or VHF? Glideslope?
• Which statement about JK flip-flops is true?
• Gay-Lussac's Law expresses the relationship between pressure and temperature at constant volume. Which equation correctly represents this law?
• Charles' Law describes the relationship between which two properties of a gas? And what is the formula?
• In a two-piston hydraulic arrangement, the displacement relation is described by which equation?
• Hydrostatic pressure at the bottom of a vertical column of liquid is described by which equation?
• What is relative wind?
• DME provides distance information to a VOR or VOR/DME station and uses which type of frequencies?
• Missing Malfunction Inoperative (MMI) repair timeframe is which option?
• Which color band indicates a 5% tolerance on a resistor?
• An operational amplifier (op-amp) is best described as what?
• Which description best defines a turn-and-bank indicator?
• In a VOR/DME navigation system, which function does the VOR primarily provide?
• How do magnetic compasses work, how do you adjust them, what are their tolerances?
• AGL is an aviation term that stands for what?
• If the static ports are blocked in flight, which two instruments are most affected?
• Which instrument helps indicate coordination in flight by showing slip or skid?
• What does DHCP do?
• In a circuit using negative logic, which signal level represents a true condition?
• Which option is a type of hydraulic pump?
• Which parameter is determined by the pitot tube to indicate indicated airspeed?
• Which system primarily determines indicated airspeed in most aircraft?
• What is the general trend of water vapor content as altitude increases?
• Which statement is true about 1's complement representation?
• What is the key difference between a static IP and a dynamic IP?
• Which statement correctly describes a NAND gate's output for all inputs?
• A radio altimeter is an automatic device that measures altitude above ground using radio waves. Which frequency band does it use, and what altitude range does it typically provide?
• An SCR latches on when gate is triggered and turns off when what occurs?
• Which device is a bidirectional thyristor used for AC power control?
• Six atmospheres of pressure is most closely equivalent to which of the following?
• Which four gases are the main components of Earth's atmosphere by abundance?
• Which three cockpit instruments utilize gyroscopes?
• Which valve prevents backflow in a hydraulic line?
• If the angle of incidence increases, what is the typical effect on lift and drag at a given angle of attack?
• In which atmospheric layer does temperature generally decrease with altitude and host the coldest temperatures?
• What is the result of binary addition 1011 and 0110?
• Which statement describes a JK flip-flop's behavior?
• Which color marker beacon light corresponds to the middle marker?
• What happens aerodynamically as speed approaches the critical Mach number?
• Which ILS component provides vertical guidance to the pilot on approach?
• Which layers comprise the TCP/IP model?
• Which law describes the inverse relationship between pressure and volume for a gas at constant temperature?
• Evaluate 0xC9 OR 0x2A.
• Which number system uses only two symbols: 0 and 1?
• Lift is directed perpendicular to what direction?
• Which statement correctly compares IPv4 and IPv6 addressing?
• What are the four forces acting on an aircraft in flight?
• In instrument flying, a standard-rate turn is defined as turning at how many degrees per second?
• What does DNS stand for?
• What is Mach number and how does Mach 1 behave at sea level versus other altitudes?
• Which term best describes the direction the aircraft's nose is pointing relative to magnetic north?
• Which of the following is a type of hydraulic pump?
• A JK flip-flop is a type of which digital element?
• How does air density generally change with increasing altitude?
• What is the wing chord line?
• Which factors affect the capacitance of a parallel-plate capacitor?
• A flip-flop stores how many bits of information?
• Which statement best describes the difference between an aerodynamic slip and a skid?
• Which statement best describes drag in flight?
• Capacitance increases when distance between plates decreases.
• Which atmospheric layer is characterized by extremely thin air and is where auroras commonly occur?
• For a two-input XOR gate, when is the output equal to 1?
• To measure voltage with a multimeter, how should you connect the meter in the circuit?
• SNMP stands for which protocol used in network management?
• ASCII as used in computing stands for which phrase?
• What happens in the cockpit when a marker beacon is passed?
• An RS flip-flop has which pair of inputs?
• What is the primary function of a relief valve in a hydraulic system?
• VOR azimuth courses are referenced to which type of north?
• Which item is a type of hydraulic seal?
• What is the approximate temperature lapse rate per 1000 feet in the standard atmosphere?
• What is the standard dry adiabatic lapse rate, i.e., the rate at which temperature decreases with altitude per 1000 meters?
• Which term describes the actual path of the aircraft over the ground?
• Telnet is used for which of the following remote interactions?
• What is the standard atmospheric pressure expressed in pascals?
• Zero fuel weight is used to determine what aspect of flight planning?
• Which statement accurately describes VOR/DME navigation?
• A flip-flop is a bistable multivibrator with how many stable states?
• What frequencies do the three ILS components use?
• ASCII stands for and what is its purpose?
• Which marker is used as the standard decision maker?
• Which color marker beacon light indicates the middle marker?
• What is the standard formula for work in physics?
• In resistor color codes, what digit does orange represent?
• In digital logic, which statement correctly contrasts positive logic and negative logic?
• What is the primary use of 2's complement in binary numbers?
• Which layer contains the ozone layer?
• How does a positive displacement pump move fluid?
• Which CFR Part pertains to flight simulators?
• Which information is typically provided by DHCP to clients?
• 14 CFR Part 60 governs which aspect in aviation training?
• What component provides the stable reference platform for measuring yaw, roll, pitch, and azimuth in gyroscopic instruments?
• Which equation expresses the relationship among pressure, volume, and temperature for a fixed amount of gas according to the ideal gas law?
• Dutch roll is a coupled lateral-directional oscillation in swept-wing aircraft. Which action best helps prevent or correct it?
• Pascal's Law states that pressure applied to a confined fluid is transmitted in which way?
• Which surface, when deployed, increases maximum lift at high angles of attack by energizing the airflow over the leading edge?
• What is the primary function of DNS?
• Bernoulli's principle explains which fundamental relationship in aerodynamics?
• In aircraft wing design, dihedral refers to which of the following?
• What is the boundary between the first and second atmospheric layers called?
• In a logic circuit, the OR gate outputs a 1 when?
• MR is commonly used to refer to which maintenance term?
• Which indicates a 20% tolerance in resistor color codes?
• What is a key benefit of using an op-amp in audio applications?
• What is the function of DNS in a network?
• What is the dielectric constant of air?
• Which describes the basic operation of a PNP transistor?
• Angle of incidence is defined as the angle between the wing's chord line and the aircraft's longitudinal axis. Does it affect lift?
• Which unit is not a typical aviation pressure unit?
• Which transistor type is described as involving current in the base controlling main current from Collector to Emitter?
• Which of the following is a basic digital function?
• Which expression represents Charles' Law in two-point form?
• Which equation expresses Ohm's Law relating voltage, current, and resistance?
• Which statement best defines pressure altitude and density altitude?
• IPv6 loopback address which is commonly used for local testing?
• Which description defines a coordinated turn?
• What is the approximate value of the specific gas constant for dry air, R, in J/(kg·K)?
• What is aerodynamic lift?
• What is the function of a shuttle valve in a hydraulic circuit?