Common Core Ground School 2 Practice Exam

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• How many stages of compression are in the engine's N1 section?
• Which component transmits the pilot's flight control inputs to the hydraulic actuators?
• When the (4 way beeper) switch is moved to the left, the power of engine #1 is ____________, while the power of engine #2 is _____________, and the ______ RPM remains constant.
• How many pounds is the capacity of the main fuel tanks?
• When pushing left pedal, which direction will the helicopter turn around the yaw axis?
• In the combustion section, which two elements are mixed and ignited to create power?
• The AFCS basic structure comprises three types of components. Which of the following is one of those component types?
• Go-Around (GA) mode button is used in case of a missed approach. Which option reflects the correct label for this mode?
• Which of the following is NOT a type of AFCS component?
• Which component converts mechanical energy to electrical energy?
• What does AFCS stand for in helicopter systems?
• Which AFCS mode allows for hands-off flight?
• The TOT value is displayed on which display?
• Low natural stability of a helicopter requires a _______ _______ of the pilot?
• What component sits between the main transmission and the tail rotor gearbox?
• Pressing the SAS/AP CUT switch on the cyclic will take you to what Level?
• Which device provides emergency 24 VDC for the emergency lighting system and the standby horizon?
• SAS ON (Stability Augmentation System On) is a 4-way toggle used to (re)engage the pitch/roll/yaw backup SAS
• If an engine is shutdown by the over-speed protection system, the other engines over-speed protection systems will be ___.
• In manual mode, which switch adjusts the engine trim?
• AFCS Levels 4 and 5 allow hands-off flying?
• The 4-Way directional control switch is used to extend and retract which equipment?
• The major components of the accessory gearbox are which two gear trains?
• Beep Trim does what?
• What system is used for basic stabilization of helicopters?
• Which audio warning cannot be suppressed by the RESET switch on the cyclic?
• What AFCS system makes inputs that cannot be seen in the flight controls?
• What component changes the power flow coming from the main transmission to the tail rotor gearbox?
• Which statement best describes a function of the engine control system regarding manual fuel flow control?
• The VAR NR caution on the CAD and MAN pushbutton illuminate in flight if the engines experience a torque split that exceeds what percent?
• What does SAS stand for in helicopter systems?
• To prevent the starter from overheating when using the battery to start the engine, limit starter to ______ seconds of activation.
• FTR stands for which term?
• If the magnetic oil drain plug detects metal particles, will a cockpit chip light illuminate to warn the pilot?
• Hydro-mechanical control is a term used to describe control within which system?
• Which tank receives fuel from the Forward Main Tank via transfer pumps?
• The forward supporting structure of the engine provides the drive gears for which items?
• The Fuel Prime Pumps are used during which operation?
• Which oil’s contamination is indicated by a CAD caution on the main transmission oil?
• What control disengages SAS and AFCS simultaneously?
• The main transmission reduces the input RPM to the output RPM for the, main rotor, tail rotor, and accessories.
• Which control is used to operate the landing light on or off?
• To enable Level 3 operation on the UH-72 when FTR is off, which sequence correctly completes the steps: Level, APMS action, and the location of the FTR switch?
• Which engine system has failed?
• The aft supporting structure is associated with which subsystem?
• In forward flight, the Delta hinge system allows for ________.
• The ________________supplies fuel via the jet pump into the __________, which supplies fuel via the transfer pumps into the ____________for delivery to the engines.
• In low stability conditions, the pilot's workload is typically what?
• Which rotor motion is enabled by the Delta hinge system in forward flight?
• What is the name of the system that permits stopping the main rotor as quickly as possible after the engines have been shut down?
• To avoid simultaneous flame out of both engines, the forward main tank is connected to the supply tanks by two overflows installed at different heights to avoid which condition?
• The two sections of the fuel control unit are which two types?
• Which direction does the 4-Way directional control switch move the searchlight to extend and retract?
• Which statement correctly describes the relationship between the transmission shaft and the turbine in this engine?
• Momentarily placing the BAT MSTR switch to ENGAGE connects the battery to which busses?
• M stands for which term?
• The engine trim 4 way beeper switch on the pilot's and co-pilot's collective is active only when which mode is selected?
• Which AFCS component's inputs are not perceivable by the pilot through the flight controls?
• How many levels of AFCS control are in sequence?
• The thermocouples on each engine are used to measure what parameter displayed on the FLI?
• Which component is the Main Transmission?
• Which of the following is an additive blended into JP-8 fuel?
• The forward supporting structure of the engine is associated with which subsystem?
• Which flight control changes the blade pitch equally on all four main rotor blades?
• During extended ground operations and AFCS test during run-up, the collective must be secured with the ______.
• Pilots can see and feel flight control inputs during which AFCS mode?
• Which cyclic switch is a 4-way toggle switch that allows the pilot to modify the attitude reference when operating in ATT (Attitude) mode?
• The symbol on the FLI indicates the compressor bleed valve is which state?
• When operated by the generators, how many VDC (Volts DC) does the electrical power supply system supply to the airborne electrical system?
• Which statement best describes the lubrication system?
• Which subcomponent of the number 2 hydraulic system boosts the control signals from pedals to reduce pilot workload?
• In the event of an over-speed, which valves activate to shut down the engine?
• Which component reduces the engine output speed and transmits power from the engines to the main and tail rotor systems?
• At what N1 percentage does the ENG START switch disengage?
• Which component is the Main Rotor Blade?
• Transmission oil pressure and temperature indications are displayed on Lane 2 of the VEMD.
• Which engine module reduces the power turbine RPM and transfers power forward to the power output flange?
• If this caution is displayed on the CAD it means that the ___________ oil is contaminated by ___________ particles.
• The VAR NR caution illuminates on which display when torque split exceeds threshold?
• The rotor brake system is used to stop rotor rotation.
• Which of the following is a function of the engine control system?
• VA stands for which word?
• When the rotor RPM is above 70%, the mast moment indication is depicted by a __________ scale; what type of scale?
• Which component transforms gas energy into mechanical power to drive the reduction gearbox?
• What does SAS ON do?
• If the magnetic oil drain plug on the intermediate transmission detects metal particles, will a cockpit chip light illuminate to notify the pilot?
• Which hydraulic system boosts tail rotor controls?
• Which flight control allows the pilot to change the pitch and roll (bank angle) of the aircraft?
• Which component drives the hydraulic pumps?
• In the main transmission oil filter assembly, the bypass valve provides what function?
• ENG START switch disengages at 40% N1, and the generator is connected to the electrical system when N1 exceeds what percent?
• Which description best captures the redundancy feature of the transmission lubrication system?
• The component that increases hydraulic fluid pressure to move the actuators is which?
• Where are the prime pumps located relative to the transfer pumps in the UH-72 fuel system?
• The backup SAS is activated by turning on which switches and pressing which switch on the cyclic?
• The FTR switch is located on which panel?
• When operated by the battery, how many VDC does the power supply system provide to the airborne electrical system?
• TOT stands for which engine parameter?
• The engine has an independent _________ _____________ lubrication system installed on each engine.
• How many fuel tanks are located beneath the cabin floor in the UH-72?
• The cyclic control primarily affects which motion?
• Which switch on the cyclic would you use to disable the backup SAS?
• How many pounds does the left supply tank hold?
• The minimum power required to start the UH-72A is ______ Volts.
• Hydro-mechanical control is a term used to describe control within which system?
• Which component changes the direction of power flow from the intermediate gearbox to the tail rotor assembly?
• At which AFCS level is Autopilot (attitude retention) engaged?
• In the main transmission oil filter assembly, which component provides an alternate oil path when clogging is detected and includes an indicator button?
• The SEMAs provide the actuator input for which system to dampen disturbances?
• Which design describes how blade flap and lead-lag movement are accomplished?
• Which component transmits the three amplified main rotor control signals to the swashplate?
• What action is required if mast moment indicator reaches 77% or higher?
• Force Trim Release (FTR) describes which effect?
• When rotor RPM is below 70%, mast moment indication is shown on which type of scale?
• The component that provides a constant resistance to tail rotor pedal input to prevent over-control is which?
• Which component recharges the battery when the engines are running?
• What is the purpose of the transmission shaft in the turbine system?
• The Freewheeling Unit (Clutch) prevents a reverse power flow from the main transmission to the engines.
• In Level 1 Unstabilized operation, pressing the SAS ON button on the cyclic transitions to which level?
• Which component provides actuation in AFCS?
• The device that reduces the power turbine RPM and transfers power to the power output flange is the:
• Which system has limited flight control authority in certain AFCS modes?
• Which control on the cyclic allows attitude adjustment via a four-way toggle during ATT mode?
• The reduction gearbox reduces the RPM of which turbine?
• What type of air is used to aid in start injector ventilation, prevent compressor stalls, and provide cabin heat?
• Which component provides electrical power to the UH-72 when the engines are running?
• HYD Test switch cautions: Which of the following is true?
• Which cyclic switch is used to turn off the backup SAS?
• What is the total amount in the two supply tanks combined until the main tanks are exhausted?
• Which gear train drives the main transmission, powering both the main and tail rotor systems?
• How many fire detectors are mounted in each engine compartment to indicate an external engine fire?
• Which component provides the first stage of compression?
• In GA Go Around, after how many seconds does GA revert to VS mode?
• Pressing the ________ switch on either cyclic will switch from Level 4 Attitude Hold to Level 1 Unstabilized.
• R stands for which term?
• The Mast Moment Indicator measures what parameter?
• Name the four fuel tanks in the UH-72.
• Electrical power consumers are divided into which 3 busses?
• What system provides attitude hold in the helicopter?
• Which flight control counteracts main rotor torque and controls yaw?
• S stands for which term?
• Which of the following pairs best describes the two sections of the fuel control unit?
• An External Power Unit (EPU) is used for engine start if battery power falls below what VDC?
• A fuel sample should be taken prior to the 1st Flight of the day.
• What voltage is used by the emergency power supply for standby horizon and emergency lighting?
• The Gas Generator High Pressure Section provides which functions?
• Which component stores chemical energy and provides electrical energy to the system as a power source?
• In the event of a dual generator failure both the Non-essential and Shed Buses are disconnected from the electrical system. Which of these buses can be reconnected to electrical power from the battery using an overhead switch?
• The starter-generator automatically transitions from start mode to generator mode when engine N1 speed exceeds -__________%?
• What is the correct fuel path order from source to engines?
• If AP MD DCPL is pressed for less than one second, which autopilot mode does the system revert to?
• What is the primary function of the GCU (Generator Control Unit)?
• If an engine is shutdown by the over-speed protection system, the other engines' over-speed protection systems will be ___.
• During the start sequence, you must turn on the ____________ __________ switches in order to supply fuel to the engines.
• The wiper switch is designed to allow for what action of the wiper blade?
• The RESET pushbutton enables the pilot to acknowledge which cues?
• The UH-72 AFCS controls which three axes, forming a 3-axis system?
• If the pop-up indicator pin is found popped during preflight, which action should the pilot take?
• GA (Go Around) mode behavior?
• Which component supplies the drive gears for the starter/generator, N1 fuel control/pump and oil pump?
• What component acts as the yaw SAS for the UH-72A?
• Which control input primarily affects yaw motion of the aircraft?
• Which switch must be pressed on the cyclic to move from Level 5 Upper Modes to Level 4 Attitude Hold?
• Which supply tank is larger in the UH-72?
• The tail rotor actuator is part of which hydraulic system?
• Which component transmits flight control signals from the swash plate to the main rotor blades?
• The twist grip caution light reference is associated with which cockpit display?
• The three types of flight controls used to fly the helicopter are the
• The cyclic controls which axes of the helicopter?
• The operational advantage of having a transmission with a 'Redundant' type Lubrication System is that the system consists of two identical lubrication circuits; if one circuit fails the other continues to lubricate the entire transmission system.
• Which component both starts the engine and recharges the battery during operation?
• TO stands for which parameter?
• NOT one of the three main sub-systems of the Electrical System?
• Which component provides the second stage of compression, combustion, and first stage of expansion?
• Which component generates lift and propulsion during flight?
• Which system measures and indicates bending moments on the rotor mast?
• Which device dampens wind and turbulence as part of the yaw control?
• Which component reduces RPM from the Power Turbine and transfers power forward to the Transmission Shaft?
• The ENG OIL P caution indicates that which condition is occurring?
• The MM EXCEED warning illuminates on CAD. CAD stands for
• If the CAD display shows a tank alert indicating emptiness, which tanks are empty?
• The MM EXCEED caution illuminates on CAD if the mast moment exceeds ______.
• Autopilot Module Decouple switch does what?
• SAS/AP Cut disengages which systems simultaneously?
• The 4-Way switch is primarily used in which mode to adjust engine trim?
• At which AFCS level is Autopilot (upper modes) engaged?
• The AFCS level corresponding to Autopilot (upper modes) is which level number?
• What does the SAS/AP Cut switch do?
• During engine start, if the BAT DISCH caution illuminates on the CAD, what corrective action is required?
• Do not operate the rotor brake until both engines are ___________ and the rotor RPM (NR) is below ________%.
• The cyclic primarily controls the aircraft's attitude about which axis?
• The primary purpose of the tail rotor is to counteract the torque effect of which rotor?
• In AFCS terms, which component is primarily responsible for maintaining the helicopter's attitude automatically?
• How many fire detectors are mounted in each engine compartment to indicate an external engine fire?
• Which AFCS level corresponds to Digital SAS (autopilot on - trim motors off)?
• The purpose of the Fuel Vent System is to keep the fuel tanks __________ under all operating conditions.
• Which control is used to reengage the backup SAS after disconnection?
• How many pounds does the right supply tank hold?
• The anti-torque pedals control movement about which axis?
• For the Force Trim Release, where is the release action described as located?
• Are cyclic and collective control inputs independent of each other?
• Which component can supply electrical power to the UH-72?
• Pushing the right pedal causes tail rotor thrust to decrease; what is the resulting nose direction?
• Where is the AP MD DCPL switch located?
• Level 5 Upper Modes is associated with what flight control status?
• The oil level of the main transmission is checked via the ______ ______.
• Which tanks ultimately deliver fuel to the engines?
• UH-72A rotor system type?
• The VARTOMS Mode Selector on the main switch panel is controlled by which pushbutton?
• The two sections of the fuel control unit are the ________ control and the hydro-________ control.
• Before attempting an inflight restart, wait for the N1 to equal __________ %.
• When pushing right pedal, the helicopter yaw turns in which direction?
• The lift and propulsion required for flight are generated by which component?
• What type of lubrication system is installed on each engine?
• The _____________ ___________ turbine drives the compressor.
• The landing on search light switch (on/off) is located in which position?
• In Level 1 Unstabilized operation, pressing the SAS ON button on the cyclic moves the system to Level 2 Backup SAS.
• Which component provides a constant resistance in the pedals to prevent over-control of the tail rotor?
• Which display would show the VAR NR caution when torque split exceeds threshold?
• A mast moment indicator above 77% requires what action to be taken?
• The power output flange receives power from which component?
• Which tank feeds the jet pump to Forward Main Tank?
• A separate power module provides 24 VDC as emergency power for the emergency lighting system and the _________.
• The aft supporting structure reduces RPM from the Power Turbine and transfers power forward to the Transmission Shaft. Which component is this describing?
• The power output flange is connected via which component?
• When pushing right pedal, the tail rotor thrust is decreased, causing the nose to turn which direction?
• The N1 gear train drives which two components?
• A fuel sample should be taken prior to the __________ of the day.
• Which AFCS component does not allow for hands-off flight?
• What is the total fuel capacity of the UH-72 fuel tank systems in pounds?
• The Trim mode in AFCS is designed to what primary outcome?
• In which position should the twist grip be placed to extinguish the TWIST GRIP caution light on the CAD?
• The Axial Compressor Assembly provides which stage of compression?
• Which statement best describes the rotor brake system’s purpose?
• What does VARTOMS stand for?
• Which component picture corresponds to the Main Rotor Head?
• Which AFCS mode has the capacity for full flight control authority?
• Which component is used for engine start if battery voltage is insufficient?
• Which system must be in manual mode for the engine trim 4-way beeper to be active?