CDC Z2a655 Hydraulic Journeyman Vol 3
(27).webp "CDC Z2a655 Hydraulic Journeyman Vol 3 - Quiz")
Questions and Answers
- 1.
WHAT IS THE WIRE SCREEN CALLED IN A NON-PRESSURIZED RESERVOIR?
- A.
ELEMENT SCREEN
- B.
THUMB SCREEN
- C.
FINGER SCREEN
- D.
FILTER SCREEN
Correct Answer
C. FINGER SCREENExplanation
A wire screen used in a non-pressurized reservoir is called a finger screen. This type of screen is typically made up of multiple parallel wires or bars that are spaced apart to allow water to pass through while trapping larger debris such as leaves, sticks, or other solid particles. The term "finger" refers to the shape of the individual wire or bar elements, which resemble fingers when viewed from the side. The finger screen helps to prevent clogging or blockage of the reservoir by removing larger contaminants from the water flow.Rate this question:
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- 2.
WHAT IS THE PURPOSE OF A STANDPIPE IN A RESERVOIR?
- A.
PROTECT THE PUMP
- B.
RESERVE FLUID FOR THE POWER PUMP
- C.
SUPPLY THE PUMP DURING INVERTED FLIGHT
- D.
RESERVE FLUID FOR THE EMERGENCY PUMP
Correct Answer
D. RESERVE FLUID FOR THE EMERGENCY PUMPExplanation
A standpipe in a reservoir is used to reserve fluid for the emergency pump. In case of any emergency or failure of the main pump, the standpipe ensures that there is a backup supply of fluid available to power the emergency pump. This helps to maintain the functionality and operation of the system even in critical situations.Rate this question:
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- 3.
DURING ONE COMPLETE CYCLE OF A SINGLE ACTING DOUBLE DISPLACMENT TYPE HAND PUMP, FLUID IS DRAWN THROUGH THE INLET (SUPPLY) LINE ON ____________
- A.
ONE STROKE AND FORCED OUT ON ONE STROKE
- B.
BOTH STROKES AND FORCED OUT ON ONE STROKE
- C.
ONE STROKE AND FORCED OUT ON BOTH STROKES
- D.
BOTH STROKES AND FORCED OUT ON BOTH STROKES
Correct Answer
C. ONE STROKE AND FORCED OUT ON BOTH STROKESExplanation
During one complete cycle of a single acting double displacement type hand pump, fluid is drawn through the inlet (supply) line on one stroke and forced out on both strokes. This means that during the first stroke, the fluid is drawn into the pump through the inlet line, and during both the first and second strokes, the fluid is forced out of the pump.Rate this question:
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- 4.
WHY DON'T VARIABLE-VOLUME PUMPS REQUIRE A SEPERATE PRESSURE-REGULATING DEVICE IN THE SYSTEM?
- A.
THEY DELIVER LOW PRESSURE
- B.
THE CASE DRAIN WILL RELIEVE HIGH SYSTEM PRESSURE
- C.
THEY HAVE AN INTEGRAL FLOW CONTROL VALVE (COMPENSATOR)
- D.
THERE IS NO ANGLE BETWEEEN THE DRIVE SHAFT AND CYLINDER BLOCK
Correct Answer
C. THEY HAVE AN INTEGRAL FLOW CONTROL VALVE (COMPENSATOR)Explanation
Variable-volume pumps do not require a separate pressure-regulating device in the system because they have an integral flow control valve (compensator). This valve allows the pump to automatically adjust the flow rate based on the system's pressure requirements, effectively regulating the pressure without the need for an additional device. This feature eliminates the need for a separate pressure-regulating device, making the system more efficient and cost-effective.Rate this question:
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- 5.
WHAT PRINCIPLE DOES A FILTER ASSEMBLY WITH A DIFFERENTIAL PRESSURE INDICATOR OPERATE?
- A.
INCREASE OF FLUID VISCOSITY AS THE TEMPERATURE IS LOWERED
- B.
SPRING-LOADED MEGNETIC INDICATOR PISTON POP-UP WHEN CONTAMINATED
- C.
COLLECTION OF CONTAMINATED PARTICLES ON THE OUTSIDE OF THE FILTER ELEMENT
- D.
DIFFERENCE BETWEEEN PRESSURE ENTERING THE ELEMENT AND PRESSURE LEAVING THE ELEMENT
Correct Answer
D. DIFFERENCE BETWEEEN PRESSURE ENTERING THE ELEMENT AND PRESSURE LEAVING THE ELEMENTExplanation
A filter assembly with a differential pressure indicator operates based on the principle of the difference between the pressure entering the element and the pressure leaving the element. This means that the indicator measures the pressure drop across the filter element, which indicates the level of contamination or clogging in the filter. As the filter becomes more contaminated, the pressure drop increases, and the differential pressure indicator provides a visual or audible signal to alert the operator to the need for maintenance or replacement of the filter element.Rate this question:
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- 6.
HYDRAULIC MANIFOLDS ARE USED IN A HYDRAULIC SYSTEM TO PROVIDE A LOCATION WHERE ____________
- A.
RETURN LINES CAN JOIN TOGETHER
- B.
PRESSURE LINES CAN JOIN TOGETHER
- C.
COMMON FLUID LINES CAN COME TOGETHER
- D.
THE HYDRAULIC TEST STAND CAN BE CONNECTED
Correct Answer
C. COMMON FLUID LINES CAN COME TOGETHERExplanation
Hydraulic manifolds are used in a hydraulic system to provide a location where common fluid lines can come together. This allows for the distribution of hydraulic fluid to different components of the system efficiently. By connecting the common fluid lines, the manifold ensures that the fluid flows smoothly and evenly to all the necessary parts, optimizing the performance of the hydraulic system.Rate this question:
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- 7.
WHAT SHOULD YOU DO TO ENSURE AN AUTOMATIC CHECK VALVE IS INSTALLED PROPERLY?
- A.
MAKE SURE THAT THE ARROW MARKED ON THE VALVE HOUSING IS POINTING IN THE OPPOSITE DIRECTION OF FLUID-FLOW
- B.
MAKE SURE THAT THE ARROW MARKED ON THE VALVE HOUSING IS POINTING IN THE DIRECTION OF FREE-FLOW
- C.
ADJUST THE SPRING TENSION SO THE VALVE WILL OPEN AT THE SPECIFIED PRESSURE
- D.
ADJUST THE CHECK VALVE SO THE FLUID FLOWS IN ONE DIRECTION ONLY
Correct Answer
B. MAKE SURE THAT THE ARROW MARKED ON THE VALVE HOUSING IS POINTING IN THE DIRECTION OF FREE-FLOWExplanation
To ensure that an automatic check valve is installed properly, you should make sure that the arrow marked on the valve housing is pointing in the direction of free-flow. This is because the arrow indicates the direction in which the fluid should flow through the valve. Installing the valve in the opposite direction of free-flow can result in the valve not functioning correctly and potentially causing damage to the system.Rate this question:
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- 8.
ONE WHICH LINE IS A MANUALLY-OPERATED CHECK VALVE USUALLY INSTALLED?
- A.
RETURN
- B.
SUPPLY
- C.
PRESSURE
- D.
CASE DRAIN
Correct Answer
C. PRESSUREExplanation
A manually-operated check valve is usually installed on the pressure line. This is because the check valve is designed to allow fluid flow in one direction only, preventing backflow and maintaining pressure in the system. By installing the check valve on the pressure line, it ensures that the fluid flows in the desired direction and maintains the required pressure.Rate this question:
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- 9.
WHICH TYPE OF SHUTOFF VALVE GIVES A POSITIVE INDICATION OF THE POSITION OF THE VALVE?
- A.
HYDRAULICALLY-OPERATED
- B.
MANUALLY-OPERATED
- C.
SOLENOID-OPERATED
- D.
MOTOR OPERATED
Correct Answer
D. MOTOR OPERATEDExplanation
A motor-operated shutoff valve gives a positive indication of the position of the valve because it uses an electric motor to control the opening and closing of the valve. This motor is connected to a position indicator, such as a limit switch or a feedback sensor, which provides feedback on the exact position of the valve. This allows operators to easily monitor and verify the status of the valve, ensuring that it is fully open or fully closed as intended.Rate this question:
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- 10.
IF A RELIEF VALVE WITH A BALL SEAT AREA 1/6 SQ INCH IS TO RELIEVE 1800 POUNDS PER SQUARE INCH (PSI), THE SPRING FORCE WOULD BE __________
- A.
1800 POUNDS
- B.
600 POUNDS
- C.
300 POUNDS
- D.
30 POUNDS
Correct Answer
C. 300 POUNDSExplanation
The spring force would be 300 pounds because the relief valve is designed to relieve pressure up to 1800 pounds per square inch (PSI) and has a ball seat area of 1/6 square inch. The spring force is the force exerted by the spring to keep the relief valve closed until the pressure exceeds the set limit. In this case, the spring force is calculated by multiplying the pressure (1800 PSI) by the ball seat area (1/6 square inch), which equals 300 pounds.Rate this question:
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- 11.
A BALANCED OUTLET RELIEF VALVE __________
- A.
CONTROLS FLUID-FLOW
- B.
ELEMINATES BACK PRESSURE
- C.
PREVENTS SYSTEM SURGES DUE TO HIGH BACK PRESSURE
- D.
ELIMINATES THE EFFECTIVE AREA THAT BACK PRESSURE CAN ACT UPON
Correct Answer
D. ELIMINATES THE EFFECTIVE AREA THAT BACK PRESSURE CAN ACT UPON -
- 12.
IN THE POPPET-TYPE SOLENOID-OPERATED SELECTOR VALVE, THE POPPETS ARE ATTACHED TO THE SOLENOIDS BY A ________________
- A.
PLUNGER
- B.
SPRING
- C.
SPOOL
- D.
SEAT
Correct Answer
A. PLUNGERExplanation
The correct answer is "PLUNGER". In a poppet-type solenoid-operated selector valve, the poppets are attached to the solenoids by a plunger. The plunger is a cylindrical component that moves back and forth within the solenoid, controlling the opening and closing of the valve. When the solenoid is energized, the plunger is pulled in, allowing the poppets to open and fluid to flow through the valve. When the solenoid is de-energized, the plunger returns to its original position, closing the poppets and stopping the flow of fluid.Rate this question:
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- 13.
THE DIFFERENCE BETWEEN A SELECTOR VALVE AND A SERVO VALVE IS THAT ____________
- A.
SELECTOR VALVE HAS FOUR PARTS
- B.
SELECTOR VALVE IS MORE COMPLEX
- C.
SERVO VALVE WILL CONTROL FLUID FLOW
- D.
SERVO VALVE IS ELETRICALLY OPERATED
Correct Answer
C. SERVO VALVE WILL CONTROL FLUID FLOW -
- 14.
WITHIN A TANDEM ACUTATOR THAT UTILIZES A POWER CONTROL CYLINDER, WHAT COMPONENT ALLOWS FLUID TO POSITION THE ACTUATOR CYLINDER?
- A.
SOLENOID-OPERATED SHUTOFF VALVE
- B.
FLAPPER SERVO VALVE
- C.
SLIDE CONTROL VALVE
- D.
BYPASS VALVE
Correct Answer
C. SLIDE CONTROL VALVEExplanation
The slide control valve within a tandem actuator that utilizes a power control cylinder allows fluid to position the actuator cylinder. This valve regulates the flow of fluid and controls the movement of the actuator cylinder, enabling precise positioning and control of the actuator.Rate this question:
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- 15.
HOW IS THE SELECTOR VALVE IN A NONAUTOMATIC HYDRAULIC ACTUATING SYSTEM CONTROLLED?
- A.
AUTOMATICALLY BY ELETRICAL SEQUENCING
- B.
MANUALLY BY MECHANICAL SEQUENCING
- C.
AUTOMATICALLY BY MICROSWITCHES
- D.
MANUALLY BY OPERATOR
Correct Answer
D. MANUALLY BY OPERATORExplanation
In a nonautomatic hydraulic actuating system, the selector valve is controlled manually by the operator. This means that the operator physically manipulates the valve to direct the flow of hydraulic fluid. This manual control allows the operator to choose the desired function or operation of the system by adjusting the position of the selector valve. It provides the operator with direct control and flexibility in managing the hydraulic system's functions and operations.Rate this question:
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- 16.
IN AN ELETRICAL FOLLOW-UP SYSTEM, THE FOLLOW-UP ACTION WILL CATCH UP AND NEUTRALIZE SERVO VALVE WHEN THE ______________
- A.
INPUT AND FOLLOW-UP TRANSDUCERS SEND THE SAME SIGNAL TO THE APMLIFIER
- B.
INPUT AND FOLLOW-UP TRANSDUCERS SEND THE SAME SIGNAL TO THE SERVO VALVE
- C.
SERVO VALVE AND AMPLIFIER SEND THE SAME SIGNAL TO THE FOLLOW-UP TRANSDUCER
- D.
FOLLOW-UP TRANSDUCER AND AMPLIFIER SEND THE SAME SIGNAL TO INPUT TRANSDUCER.
Correct Answer
A. INPUT AND FOLLOW-UP TRANSDUCERS SEND THE SAME SIGNAL TO THE APMLIFIERExplanation
In an electrical follow-up system, the follow-up action will catch up and neutralize the servo valve when the input and follow-up transducers send the same signal to the amplifier. This means that the input and follow-up transducers are providing consistent and synchronized signals to the amplifier, which allows for proper control and adjustment of the servo valve.Rate this question:
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- 17.
WHICH TYPE OF ORIFICE ALLOWS NORMAL SPEED OF OPERATION IN ONE DIRECTION, BUT LIMITS SPEED IN THE OTHER?
- A.
FIXED
- B.
MANUAL
- C.
VARIABLE
- D.
CHECK VALVE
Correct Answer
D. CHECK VALVEExplanation
A check valve is a type of orifice that allows normal speed of operation in one direction but limits speed in the other. It is designed to allow fluid or air to flow freely in one direction while preventing backflow or reverse flow in the opposite direction. This restriction of flow in one direction helps to control the speed of operation, ensuring that it remains within a desired range.Rate this question:
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- 18.
HYDRUALIC FLOW REGULATORS REGULATE FLUID-FLOW ____________
- A.
IN BOTH DIRECTIONS
- B.
IN ONE DIRECTION ONLY
- C.
ONLY WHEN THERE IS NO LOAD ON THE ACTUATOR
- D.
ONLY WHEN THERE IS MAXIMUM LOAD ON THE ACTUATOR
Correct Answer
B. IN ONE DIRECTION ONLYExplanation
Hydraulic flow regulators are devices that control the flow of fluid in a hydraulic system. They are designed to regulate fluid flow in one direction only, allowing the fluid to flow freely in that direction while restricting or blocking it in the opposite direction. This ensures that the fluid can only flow in the desired direction, providing control and stability to the hydraulic system.Rate this question:
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- 19.
IF FLUID DOES NOT SPLIT EVENLY IN THE FLOW EQUALIZER, A __________
- A.
FREE FLOATING PISTON SHIFTS POSITION
- B.
VARIABLE ORIFICE CHANGES IT'S OPENING
- C.
CHECK VALVE OPENS ON THE SIDE HAVING LESS PRESSURE
- D.
CHECK VALVE OPENS ON THE SIDE HAVING GREATER PRESSURE
Correct Answer
A. FREE FLOATING PISTON SHIFTS POSITIONExplanation
When the fluid does not split evenly in the flow equalizer, it means that there is an imbalance in the flow. In order to maintain balance and equal distribution of the fluid, the free floating piston, which is designed to move freely, will shift its position. This movement of the piston allows the fluid to redistribute itself and achieve a more even flow.Rate this question:
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- 20.
WHAT IS THE PURPOSE OF INSTALLING SEQUENCE VALVES IN A HYDRAULIC SYSTEM?
- A.
SO ONLY ONE SYSTEM CAN OPERATE AT A TIME
- B.
TO ENSURE THAT SYSTEM ACTUATORS EXTEND AND RETRACT AT THE SAME RATE
- C.
SO ONE OPERATION IS PERFORMED BEFORE THE REST OF THE SYSTEM CAN OPERATE
- D.
TO PREVENT THE NORMAL AND EMERGENCY SYSTEM FROM OPERATING AT THE SAME TIME
Correct Answer
C. SO ONE OPERATION IS PERFORMED BEFORE THE REST OF THE SYSTEM CAN OPERATEExplanation
Sequence valves are installed in a hydraulic system to ensure that one operation is performed before the rest of the system can operate. This is important in situations where a specific order of operations is required for the system to function properly. The sequence valve allows for the controlled flow of fluid to different actuators, ensuring that each actuator extends and retracts at the appropriate time. By regulating the sequence of operations, the sequence valve helps to prevent damage to the system and ensures its efficient and safe functioning.Rate this question:
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- 21.
IN A TYPICAL ELETRICALLY SEQUENCED SYSTEM, WHAT UNIT IS USED TO ENSURE PROPER SEQUENCING?
- A.
MICROSWITCH
- B.
PRIORITY VALVE
- C.
THERMAL SWITCH
- D.
BALANCED RELIEF VALVE
Correct Answer
A. MICROSWITCHExplanation
A microswitch is used in a typical electrically sequenced system to ensure proper sequencing. A microswitch is a small switch that is activated by a physical force, such as the movement of a component or the presence of a certain condition. In this context, the microswitch would be used to detect the completion of a certain step or the presence of a certain condition before allowing the system to proceed to the next step. This ensures that the sequence of operations is followed correctly and prevents any potential issues or malfunctions.Rate this question:
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- 22.
IN AN EMERGENCY, THE ENGINE-DRIVEN HYDRAULIC PUMP SHUTOFF VALES MAY BE OPERATED BY _____________
- A.
PULLING THE T-HANDLE
- B.
STOPPING THE ENGINES
- C.
PULLING THE CIRCUIT BREAKERS
- D.
STOPPING THE SUCTION BOOST PUMP
Correct Answer
A. PULLING THE T-HANDLEExplanation
In an emergency, the engine-driven hydraulic pump shutoff valves may be operated by pulling the T-handle. This action allows for the immediate shutdown of the hydraulic pump, which can help prevent further damage or potential hazards in the event of an emergency. Pulling the T-handle is a quick and effective way to stop the hydraulic pump from operating and is a standard procedure in emergency situations.Rate this question:
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- 23.
WHEN ELETRICAL POWER IS LOST IN A HYDRAULIUC POWER SYSTEM, WHAT WOULD BE THE POSITION OF THE SOLENOID-OPERATED SHUTOFF VALVES?
- A.
OPEN
- B.
CLOSED
- C.
BYPASS
- D.
RUNAROUND
Correct Answer
A. OPENExplanation
When electrical power is lost in a hydraulic power system, the solenoid-operated shutoff valves would be in the open position. This means that the valves would allow the flow of hydraulic fluid to continue, ensuring that the system remains operational even without electrical power.Rate this question:
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- 24.
WHEN THE PUMP LOW-PRESSURE WARNING LIGHT ILLUMINATES WHILE THE ENGINES ARE RUNNING AND THE PRESSURE READING ON THE ACCUMULATOR PRESSURE GAUGE READS LOW, THE FIRST COMPONENT THAT SHOULD BE SUSPECTED HAVING A MALFUCTION IS THE ___________
- A.
SNUBBER
- B.
ACCUMULATOR
- C.
ENGINE-DRIVEN PUMP
- D.
PRESSURE TRANSMITTER
Correct Answer
C. ENGINE-DRIVEN PUMPExplanation
When the pump low-pressure warning light illuminates while the engines are running and the pressure reading on the accumulator pressure gauge reads low, the first component that should be suspected of having a malfunction is the engine-driven pump. This is because the engine-driven pump is responsible for supplying the necessary pressure to the system, and if it is not functioning properly, it can result in low pressure in the system.Rate this question:
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- 25.
IF WHEN THE ENGINES SHUTDOWN, ONE OF THE ENGINE PUMPS LOW-PRESSURE WARNING LIGHTS FAILS TO ILLUMINATE, WHAT WOULD BE THE FIRST THING YOU SHOULD CHECK?
- A.
INTERNAL LEAKAGE IN VALVE
- B.
ELETRICAL POWER AT THE PUMP
- C.
LOW-PRESSURE WARNING SWITCH
- D.
PRESS-TO-TEST FEATURE OF THE WARNING LIGHT
Correct Answer
D. PRESS-TO-TEST FEATURE OF THE WARNING LIGHTExplanation
The first thing you should check is the press-to-test feature of the warning light. This feature allows you to manually test the functionality of the warning light. If the light fails to illuminate during the test, it indicates a problem with the warning light itself rather than any other potential issues such as internal leakage in the valve, electrical power at the pump, or the low-pressure warning switch.Rate this question:
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- 26.
WHEN FILLING A SYSTEM RESERVOIR, YOU MUST OBSERVE THE FLUID LEVEL, BECAUSE OVERFILLING MAY CAUSE THE RESERVOIR TO _______________
- A.
VENT
- B.
RUPTURE
- C.
OVERHEAT
- D.
CREATE A VACUUM
Correct Answer
B. RUPTUREExplanation
When filling a system reservoir, it is important to observe the fluid level because overfilling may cause the reservoir to rupture. This means that if the reservoir is filled beyond its capacity, the pressure inside the reservoir may increase to a point where it exceeds the strength of the reservoir material, causing it to break or burst open. This can lead to leakage of the fluid and potential damage to the system. Therefore, it is crucial to avoid overfilling to prevent such a catastrophic failure.Rate this question:
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- 27.
WHEN BLEEDING A POWER SYSTEM, HOW MUCH ADDITIONAL FLUID SHOULD YOU BLEED OUT AFTER AIR BUBBLES ARE NO LONGER EVIDENT?
- A.
NONE
- B.
1 QUART
- C.
1/2 QUART
- D.
1 GALLON
Correct Answer
B. 1 QUARTExplanation
After bleeding the power system and removing all the air bubbles, it is recommended to bleed out an additional 1 quart of fluid. This is necessary to ensure that any remaining air pockets are completely eliminated from the system, which could potentially cause issues with the power system's performance. By bleeding out this additional amount of fluid, the system will be properly filled and free from any air bubbles, allowing it to function optimally.Rate this question:
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- 28.
WHAT MUST YOU DO ANYTIME YOU INSTALL A JUMPER WIRE IN ANY SYSTEM?
- A.
PLACE A WRITE-UP IN THE AIRCRAFT FORMS UNDER A READ DASH
- B.
PLACE A WRITE-UP IN THE AIRCRAFT FORMS UNDER A RED X
- C.
TELL YOUR SUPERVISOR
- D.
TELL YOUR FLIGHT CHIEF
Correct Answer
B. PLACE A WRITE-UP IN THE AIRCRAFT FORMS UNDER A RED XExplanation
Whenever a jumper wire is installed in any system, it is necessary to place a write-up in the aircraft forms under a red X. This is done to document the installation of the jumper wire and indicate that it was not part of the original system design. This helps in maintaining a record of any modifications or changes made to the system and ensures that proper documentation is available for future reference or troubleshooting purposes.Rate this question:
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- 29.
WHEN TAKING FLUID SAMPLES ON A HYDRAULIC SYSTEM, YOU SHOULD ____________
- A.
REMOVE AND REPLACE THE FILTERS
- B.
BENCH CHECK THE ENGINE-DRIVEN PUMP
- C.
TAKE THE SAMPLE FROM THE SERVOIR ONLY
- D.
TAKE THE SAMPLE FROM THE RESERVOIR AND VARIOUS OTHER LOCATIONS IN THE SYSTEM
Correct Answer
D. TAKE THE SAMPLE FROM THE RESERVOIR AND VARIOUS OTHER LOCATIONS IN THE SYSTEMExplanation
When taking fluid samples on a hydraulic system, it is important to take the sample from the reservoir and various other locations in the system. This is because different components within the system may have different levels of contamination or wear, and taking samples from multiple locations allows for a more comprehensive analysis of the system's overall condition. By sampling from various locations, potential issues or abnormalities can be identified and addressed before they lead to more serious problems or system failures.Rate this question:
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- 30.
IF A HYDRAULIC SYSTEM IS FOUND TO BE CONTAMINATED, WHERE SHOULD YOU BEGIN DRAINING THE AFFECTED SYSTEM?
- A.
BRAKES
- B.
RESERVOIR
- C.
FLAP ACTUATORS
- D.
AILERON ACTUATORS
Correct Answer
B. RESERVOIRExplanation
If a hydraulic system is found to be contaminated, the best place to begin draining the affected system would be the reservoir. The reservoir is the main storage tank for hydraulic fluid, and draining it would help remove any contaminated fluid from the system. By starting with the reservoir, it ensures that the majority of the contaminated fluid is removed before moving on to other components such as the brakes, flap actuators, or aileron actuators. This helps prevent further contamination and allows for a more effective cleaning and maintenance process.Rate this question:
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- 31.
WHEN ACCOMPLISHING A PISTON SEIZURE TEST ON A HYDRAULIC ACCUMULATOR, HYDRAULIC PRESSURE, MEASURED IN POUNDS PER SQUARE INCH GAUGE (PSIG) SHOULD NOT EXCEED ____________
- A.
50 PSIG
- B.
100 PSIG
- C.
1500 PSIG
- D.
3000 PSIG
Correct Answer
A. 50 PSIGExplanation
When accomplishing a piston seizure test on a hydraulic accumulator, the hydraulic pressure should not exceed 50 PSIG. This is because exceeding this pressure limit can cause damage to the piston and potentially lead to a seizure. It is important to keep the pressure within a safe range to ensure the proper functioning and longevity of the hydraulic accumulator.Rate this question:
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- 32.
WHICH TEST SHOULD YOU PERFORM TO DETERMINE IF THE ACCUMMULATOR PISTON SEALS ARE LEAKING OR BYPASSING?
- A.
AN EXTERNAL LEAKAGE TEST
- B.
AN INTERNAL LEAKAGE TEST
- C.
A PROOF PRESSURE TEST
- D.
A PISTON SEIZURE TEST
Correct Answer
B. AN INTERNAL LEAKAGE TESTExplanation
An internal leakage test should be performed to determine if the accumulator piston seals are leaking or bypassing. This test involves pressurizing the accumulator and monitoring the pressure over a period of time. If the pressure drops significantly, it indicates that there is internal leakage occurring, which could be caused by faulty piston seals. This test helps to identify any issues with the seals and allows for necessary repairs or replacements to be made.Rate this question:
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- 33.
WHEN PERFORMING AN INTERNAL LEAKAGE TEST, AIR BUBBLES COMING OUT OF THE ACCUMULATOR END CAP INDICATES _____________
- A.
A LACK OF PROPER ACCUMULATOR VENTING
- B.
EXCESSIVE GAS PRESSURE IS BEING APPLIED
- C.
INTERNAL LEAKING OF THE ACCUMULATOR PISTON
- D.
INTERNAL LEAKING OF THE ACCUUMULATOR END CAP
Correct Answer
C. INTERNAL LEAKING OF THE ACCUMULATOR PISTONExplanation
Air bubbles coming out of the accumulator end cap during an internal leakage test indicate internal leaking of the accumulator piston. This means that there is a problem with the sealing of the piston, allowing air to escape from the piston area. This can lead to a decrease in the accumulator's performance and efficiency. It is important to address this issue to ensure the proper functioning of the accumulator.Rate this question:
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- 34.
THE PURPOSE OF THE FLUID QUANTITY SYSTEM TEST IS TO TEST THE ___________
- A.
PRESSURIZATION SYSTEM
- B.
INDICATION SYSTEM
- C.
NITROGEN SYSTEM
- D.
SUCTION SYSTEM
Correct Answer
B. INDICATION SYSTEMExplanation
The purpose of the fluid quantity system test is to test the indication system. This is because the fluid quantity system is responsible for measuring and indicating the amount of fluid (such as fuel or oil) present in a system or tank. By testing the indication system, one can ensure that the measurements and readings provided by the system are accurate and reliable, allowing for proper monitoring and management of fluid levels.Rate this question:
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- 35.
DURING EXTENSION AND RETRACTION, WHAT UNIT SLOWS THE LANDING GEAR AS IT APPROACHES THE DOWN AND LOCKED AND THE UP AND LOCKED POSITIONS?
- A.
PRESSURE REDUCER
- B.
TWO-WAY RESISTOR
- C.
SOLENOID-OPERATED VALVE
- D.
SPRING-LOADED SLIDING-VALVE SNUBBING ASSEMBLY
Correct Answer
D. SPRING-LOADED SLIDING-VALVE SNUBBING ASSEMBLYExplanation
The spring-loaded sliding-valve snubbing assembly slows down the landing gear as it approaches the down and locked and the up and locked positions. This assembly is designed to dampen the movement of the landing gear during extension and retraction, preventing any sudden or excessive force that could potentially damage the gear or the aircraft. The spring-loaded mechanism helps to absorb the energy and provide a smooth and controlled movement for the landing gear.Rate this question:
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- 36.
N/A
- A.
RIGHT
- B.
WRONG
- C.
WRONG
- D.
WRONG
Correct Answer
A. RIGHT -
- 37.
N/A
- A.
RIGHT
- B.
WRONG
- C.
WRONG
- D.
WRONG
Correct Answer
A. RIGHT -
- 38.
WHAT WOULD YOU USE TO REMOVE THE SLEEVE FROM A SLECTOR VALVE BODY?
- A.
MAGNET
- B.
DRIFT PUNCH
- C.
WOODEN DOWEL
- D.
NEEDLE-NOSE PLIERS
Correct Answer
C. WOODEN DOWELExplanation
A wooden dowel would be the most suitable tool to remove the sleeve from a selector valve body. This is because a wooden dowel is a non-abrasive and non-magnetic tool that can be used to gently tap and push out the sleeve without causing any damage to the valve body. Using a magnet, drift punch, or needle-nose pliers may result in scratching, denting, or magnetizing the valve body, which could affect its functionality. Therefore, a wooden dowel is the best option for safely and effectively removing the sleeve.Rate this question:
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- 39.
WHILE DISASSEMBLING A SELECTOR VALVE, YOU NOTICE AN "X" MARKED ON THE SLEEVE OF THE SHUTTLE AND SLEEVE ASSEMBLY. IT IS MARKED IN THE MANNER TO INDICATE _________
- A.
THE SLEEVE IS DEFECTIVE
- B.
OVERSIZED SLEEVES ARE INSTALLED
- C.
PROPER POSITION OF MATCHED PARTS
- D.
IT IS A BENCH STOCK ITEM CODED XB3
Correct Answer
C. PROPER POSITION OF MATCHED PARTSExplanation
The "X" marked on the sleeve of the shuttle and sleeve assembly indicates the proper position of matched parts. This marking serves as a visual indicator to ensure that the sleeve is correctly aligned and installed in the valve. It helps in maintaining the proper functioning and alignment of the valve components, ensuring optimal performance.Rate this question:
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- 40.
IF THE STEERING BECAME SLUGGISH, WHAT ITEM WITIHIN THE METERING VALVE MIGHT YOU SUSPECT OF CAUSING THE PROBLEM?
- A.
PRESSURE COMPENSATOR IS NOT WORKING PROPERLY
- B.
METERING VALVE FILTER HAS BECOME CLOGGED
- C.
STEERING CENTERING MECHANISM IS BROKEN
- D.
NOSEWHEEL STEERING ACTUARTOR IS LEAKING
Correct Answer
B. METERING VALVE FILTER HAS BECOME CLOGGEDExplanation
If the steering became sluggish, the item within the metering valve that might be suspected of causing the problem is the metering valve filter becoming clogged. This is because a clogged filter can restrict the flow of fluid through the metering valve, leading to decreased steering response and sluggishness.Rate this question:
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- 41.
IN THE EVENT A BRAKE LINE RUPTURES AND THE HYDRAULIC FUSE SETS, HOW MUCH HYDRAULIC FLUID (IN CUBIC INCHES) WILL BE LOST?
- A.
10 (+5/-0)
- B.
20 (+10/-5)
- C.
40 (+10/-0)
- D.
60 (+5/-0)
Correct Answer
C. 40 (+10/-0) -
- 42.
AFTER RECIEVING A WRITE-UP FOR DRAGGING BRAKES, YOU HAVE CHECKED THE BRAKE ADJUSTMENTS AND FOUND IT TO BE CORRECT. THE NEXT LOGICAL STEP IN TROUBLESHOOTING THE PROBLEM IS TO CHECK THE ___________
- A.
METERING VALVES
- B.
RETURN PRESSURE
- C.
FILTER ELEMENTS
- D.
SHUTTLE VALVES
Correct Answer
B. RETURN PRESSUREExplanation
After checking the brake adjustments and finding them to be correct, the next logical step in troubleshooting the problem is to check the return pressure. This is because the return pressure can affect the performance of the brakes and if it is not within the appropriate range, it can cause dragging brakes. Therefore, checking the return pressure is necessary to identify if it is the cause of the problem.Rate this question:
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- 43.
DURING A POSTFLIGHT DEBRIEFING, THE PILOT REPORTS THAT THE ANTISKID IS COMPLETELY INOPERATIVE. UPON INSPECTION YOU FIND THAT THE ANTISKID SWITCH IS ON, AND ALL CIRCUIT BREAKERS ARE ENGAGED. WHAT IS THE NEXT COMPONENT YOU WOULD CHECK?
- A.
BRAKE PEDALS
- B.
THE ACCUMULATOR
- C.
ANTISKID CONTROL BOX
- D.
BRAKE METERING VALVE
Correct Answer
C. ANTISKID CONTROL BOXExplanation
The next component that should be checked is the antiskid control box. This is because the pilot has reported that the antiskid system is completely inoperative, and the antiskid control box is responsible for controlling and regulating the antiskid system. By inspecting the control box, any potential issues or malfunctions can be identified and addressed to restore the functionality of the antiskid system.Rate this question:
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- 44.
WHEN DISASSEMBLING A BRAKE, YOU SHOULD NOT DISASASEMBLE THE GRIP AND TUBE PARTS OF THE ASSEMBLE BECAUSE THEY ARE ___________
- A.
MATED PARTS
- B.
NONREPARABLE
- C.
DIFFICULT TO DISASSEMBLE
- D.
SERIALLY CONTROLLED PARTS
Correct Answer
A. MATED PARTSExplanation
When disassembling a brake, you should not disassemble the grip and tube parts of the assembly because they are mated parts. Mated parts are designed to fit together and work as a unit, and disassembling them may cause damage or affect the functionality of the brake. Therefore, it is recommended to leave the grip and tube parts intact during the disassembly process.Rate this question:
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- 45.
IN THE AIRCRAFT'S ROLL AXIS, WHAT SYSTEM COMPENSATES FOR IMBALANCE OR EXTERNAL ENVIORMENTAL CONDITIONS THAT AFFECT STABILIZED FLIGHT?
- A.
MECHANICAL
- B.
HYDRAULIC
- C.
ELETRICAL
- D.
TRIM
Correct Answer
D. TRIMExplanation
The trim system in the aircraft's roll axis compensates for imbalance or external environmental conditions that affect stabilized flight. It helps to adjust the control surfaces to maintain the desired attitude and balance of the aircraft, allowing for smoother and more efficient flight. This can be done mechanically, hydraulically, or electrically depending on the specific aircraft and its systems.Rate this question:
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- 46.
WHAT FLIGHT CONTROL SURFACE IS USED TO AUGMENT THE AILERONS TO ACHIEVE THE ROLL RATE COMMAND EITHER BY PILOT OR AUTOPILOT?
- A.
ELEVATOR
- B.
RUDDER
- C.
SPOILER
- D.
FLAP
Correct Answer
C. SPOILERExplanation
Spoilers are flight control surfaces that are used to augment the ailerons to achieve the roll rate command either by the pilot or autopilot. Spoilers are located on the wings and are used to disrupt the airflow over the wings, which reduces lift and causes the aircraft to roll. By deploying the spoilers asymmetrically, the pilot or autopilot can control the roll rate of the aircraft. This allows for precise control during maneuvers and helps maintain stability and control in various flight conditions.Rate this question:
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- 47.
IF DURING A PREFLIGHT CHECK THE PILOT NOTED THAT HE HAD NO ROLL INPUT IN THE MECHANICAL CODE OF OPERATION, WHAT IS THE FIRST THING THAT HYDRAULIC TECHNICIAN SHOULD DO?
- A.
CHECK THE CONDITION OF THE RATIO CHANGER CONNECTING LINK
- B.
CONSULT THE APPROPRIATE GENERAL SYSTEM (GS) MANUAL
- C.
CONSULT THE APPROPRIATE FAULT ISOLATION (FI) MANUAL
- D.
PERFORM AN OPERATIONAL CHECK
Correct Answer
C. CONSULT THE APPROPRIATE FAULT ISOLATION (FI) MANUALExplanation
The correct answer suggests that the first thing the hydraulic technician should do is consult the appropriate Fault Isolation (FI) manual. This manual contains detailed instructions and procedures for troubleshooting and isolating faults in the hydraulic system. By consulting the FI manual, the technician can find specific steps to identify and resolve the issue with the roll input in the mechanical code of operation. It is important to consult the FI manual as it provides the necessary guidance to diagnose and fix hydraulic system problems effectively.Rate this question:
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- 48.
WHAT IS THE POSITION OF THE BOOM HOIST LEVER WHEN THE BOOM IS BEING FLOWN?
- A.
FLIGHT
- B.
NEUTRAL
- C.
FREEWHEEL
- D.
RAISE/LOWER
Correct Answer
C. FREEWHEELExplanation
When the boom is being flown, the position of the boom hoist lever is set to "FREEWHEEL". This means that the boom hoist is disengaged and the boom can move freely without any restriction or control from the lever. This allows for smooth and unrestricted movement of the boom during flight operations.Rate this question:
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- 49.
IN THE AIR REFUELING (A/R) SYSTEM, WHAT CONNECTS THE TANDEM SURGE BOOTS TO THE FUEL-TUBE WELD ASSEMBLY?
- A.
GLAND NUTS
- B.
SPACER RINGS
- C.
SEAL ASSEMBLY
- D.
CONNECTING TUBE
Correct Answer
A. GLAND NUTSExplanation
The correct answer is GLAND NUTS. Gland nuts are the components that connect the tandem surge boots to the fuel-tube weld assembly in the in-air refueling (A/R) system. They are used to secure and seal the connection between the surge boots and the fuel-tube assembly, ensuring a tight and reliable connection for fuel transfer during refueling operations.Rate this question:
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- 50.
IF THE AIR REFUELING (A/R) READY INDICATOR LIGHT FAILS TO ILLUMINATE WITH THE A/R MASTER SWITCH TO ON WHAT FAULTY COMPONENT IS THE MOST LIKELY CAUSE?
- A.
SIGNAL AMPLIFIER CIRCUIT BREAKER
- B.
CORRODED INDUCTION COIL
- C.
FUEL DUMP SWITCH
- D.
OVERRIDE SWITCH
Correct Answer
A. SIGNAL AMPLIFIER CIRCUIT BREAKERExplanation
The most likely cause for the air refueling (A/R) ready indicator light failing to illuminate when the A/R master switch is turned on is a faulty signal amplifier circuit breaker. The signal amplifier circuit breaker is responsible for providing power to the indicator light, so if it is faulty or not functioning properly, the light will not illuminate.Rate this question:
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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
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Current Version
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Jun 16, 2023Quiz Edited by
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Mar 14, 2018Quiz Created by
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