Aircraft Run Test For The T-38c Aircraft

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| By Ted Suchaski
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  • 1/86 Questions

    If the left engine is started before the right engine, what is required in order for instruments to work?

    • External Electrical Power
    • MDP must be in the ON position and the MDP screen switch must be in the Day or Night position
    • The EGI selector switch must be in the ON position
    • Fully charged aircraft battery
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About This Quiz

This quiz focuses on the T-38C aircraft's J-85 engine, assessing knowledge on RPM levels, oil pressure, exhaust nozzle positions, fuel flow, and exhaust gas temperatures. It is designed for aerospace professionals and students to validate understanding of engine operational standards.

Aircraft Run Test For The T-38c Aircraft - Quiz

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  • 2. 

    Prior to advancing the throttles above idle, ensure hand is always on the throttle and ________________.

    • Pump up and hold brakes

    • Start button has been pushed

    • MDP switch is in the ON position

    • Rotating beacon switch is ON

    Correct Answer
    A. Pump up and hold brakes
    Explanation
    Before advancing the throttles above idle, it is important to ensure that the hand is always on the throttle and the brakes are pumped up and held. This is necessary to maintain control and prevent the aircraft from moving forward unexpectedly. The other options listed, such as pushing the start button, having the MDP switch in the ON position, and turning on the rotating beacon switch, are not directly related to the action of advancing the throttles and maintaining control of the aircraft.

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  • 3. 

    After all work has been accomplished and before engine start, remove static grounding cable, inspect to ensure all accessories and attaching parts are secure and that work areas are free of _____________.

    • Foreign objects

    • Aircraft panels

    • Unauthorized personnel

    • Tools

    Correct Answer
    A. Foreign objects
    Explanation
    Before starting the engine, it is important to ensure that the work area is free of foreign objects. This is necessary to prevent any potential damage to the engine or aircraft systems. Foreign objects such as tools, debris, or loose parts can pose a safety risk and may interfere with the proper functioning of the engine. Therefore, it is crucial to inspect and remove any foreign objects before starting the engine.

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  • 4. 

    All personnel should be briefed on the importance of ______________ in the work place.

    • Foreign objects

    • Tools

    • Technical Data

    • Proper grounding

    Correct Answer
    A. Foreign objects
    Explanation
    Personnel should be briefed on the importance of foreign objects in the workplace to ensure safety and prevent accidents. Foreign objects can pose a risk by causing equipment malfunctions, interfering with processes, or creating hazards. By being aware of the presence and potential dangers of foreign objects, employees can take necessary precautions to maintain a clean and organized work environment, reducing the likelihood of incidents and injuries.

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  • 5. 

    After checking aircraft forms and prior to entering cockpit, which of the following items should you check first

    • Throttles in cutoff.

    • Seat in up position.

    • Egress status safety pins installed.

    • Radio switch in as required position.

    Correct Answer
    A. Egress status safety pins installed.
    Explanation
    Before entering the cockpit, the first item that should be checked is the egress status safety pins installed. This is important because the safety pins ensure that the aircraft's egress systems, such as the canopy or doors, are secured and will not accidentally open during flight or on the ground. Checking the egress status safety pins is a crucial step in ensuring the safety of the aircraft and its occupants.

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  • 6. 

    What is the maximum continuous operating time for a J-85 engine being run in Afterburner (MAX) Power?

    • 5 minutes

    • 4 minutes

    • 3 minutes

    • 6 minutes

    Correct Answer
    A. 5 minutes
    Explanation
    The correct answer is 5 minutes. This is the maximum continuous operating time for a J-85 engine being run in Afterburner (MAX) Power. Afterburner is a mode in which additional fuel is injected into the exhaust stream of a jet engine to provide extra thrust. However, running the engine in this mode for too long can cause excessive heat buildup and potential damage to the engine components. Therefore, the maximum continuous operating time in Afterburner power is limited to 5 minutes to ensure the engine's safety and longevity.

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  • 7. 

    When external power is applied to the T-38C aircraft, and the cockpit Battery Switch is in the On position, what condition might occur?

    • Charging voltage higher than the maximum allowed.

    • Discharge of the battery to levels requiring replacement.

    • No effect on the aircraft battery.

    • Charging the battery to 24 volts.

    Correct Answer
    A. Charging voltage higher than the maximum allowed.
    Explanation
    When external power is applied to the T-38C aircraft and the cockpit Battery Switch is in the On position, there is a possibility of the charging voltage exceeding the maximum allowed. This can lead to potential damage to the aircraft's battery and electrical systems. It is important to ensure that the charging voltage remains within the specified limits to prevent any adverse effects on the battery and the overall functioning of the aircraft.

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  • 8. 

    All signals pertaining to ground engine operation of the T-38C aircraft must originate from: 

    • The cockpit.

    • The person performing ground operations.

    • The fire guard.

    • MOCC.

    Correct Answer
    A. The cockpit.
    Explanation
    All signals pertaining to ground engine operation of the T-38C aircraft must originate from the cockpit. This means that any commands or actions related to the engine operation, such as starting or stopping the engines, must be initiated from the cockpit. The cockpit is where the pilot sits and controls the aircraft, so it is the central location for all operations and communications related to the aircraft's functioning.

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  • 9. 

    When engines are being operated, how far should you stay away from the engine inlet?

    • 12 feet

    • 10 feet

    • 8 feet

    • 11 feet

    • 6 feet

    Correct Answer
    A. 12 feet
    Explanation
    When engines are being operated, it is recommended to stay at least 12 feet away from the engine inlet. This distance is necessary to ensure personal safety and prevent any potential hazards that may arise from the engine's operation. Being too close to the engine inlet can expose individuals to high temperatures, strong winds, and flying debris, which can be dangerous. By maintaining a safe distance of 12 feet, the risk of injury or accidents can be minimized.

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  • 10. 

    What is the maximum continuous operating time for a J-85 engine being run at Military Power?

    • 5 minutes

    • 4 minutes

    • 3 minutes

    • 6 minutes

    Correct Answer
    A. 5 minutes
    Explanation
    The maximum continuous operating time for a J-85 engine being run at Military Power is 5 minutes. This means that the engine can operate continuously at its maximum power output for a duration of 5 minutes without any adverse effects. It is important to adhere to this time limit to prevent overheating or damage to the engine.

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  • 11. 

    Engine oil level must be checked within _____ minutes after engine shutdown.

    • 15

    • 12

    • 10

    • 30

    Correct Answer
    A. 15
    Explanation
    After the engine is shut down, it is recommended to check the engine oil level within 15 minutes. This is because during operation, the engine oil circulates throughout the engine and various components, ensuring proper lubrication and cooling. After the engine is turned off, the oil begins to settle, and checking the level within 15 minutes allows for an accurate measurement before the oil fully settles. Waiting longer than 15 minutes may result in an inaccurate reading as the oil may have already settled in the oil pan.

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  • 12. 

    What is the correct Afterburner (MAX) RPM for the J-85 engine used in the T-38C?

    • 99-100%

    • 99-101%

    • 99-100.5%

    • 98-100%

    Correct Answer
    A. 99-100%
    Explanation
    The correct Afterburner (MAX) RPM for the J-85 engine used in the T-38C is 99-100%.

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  • 13. 

    When running aircraft engines at night, which lights must be on?

    • Position and Beacon

    • Beacon only

    • Position only

    • Beacon and Cockpit

    Correct Answer
    A. Position and Beacon
    Explanation
    When running aircraft engines at night, it is important to have the Position and Beacon lights on. The Position lights, also known as navigation lights, are used to indicate the position and direction of the aircraft to other pilots and ground personnel. These lights are typically located on the wings and tail of the aircraft. The Beacon light, on the other hand, is a rotating or flashing light located on the top or bottom of the aircraft. It is used to increase visibility and alert others of the aircraft's presence. Having both the Position and Beacon lights on ensures maximum visibility and safety during night operations.

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  • 14. 

    Where in the front cockpit of the T-38C aircraft is the radio transmit key located?

    • #2 engine throttle lever

    • Right thumb button on the flight control stick

    • Button below the trigger on the flight control stick

    • On the intercom panel

    Correct Answer
    A. #2 engine throttle lever
    Explanation
    The correct answer is the #2 engine throttle lever. This lever is located in the front cockpit of the T-38C aircraft and serves as the radio transmit key. When the pilot presses or activates the throttle lever, it also functions as the transmit key for the aircraft's radio communication system.

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  • 15. 

    When testing the engine anti-ice valve, which cockpit instrument is monitored?

    • Exhaust Gas Temperature (EGT)

    • Engine RPM

    • Cockpit caution word panel

    • Multifunction Display (MFD) 

    Correct Answer
    A. Exhaust Gas Temperature (EGT)
    Explanation
    The engine anti-ice valve is responsible for preventing ice from forming on the engine during flight. Monitoring the Exhaust Gas Temperature (EGT) is crucial for testing the valve because it indicates the temperature of the gas leaving the engine. If the EGT is too low, it could mean that the anti-ice valve is not functioning properly and may need to be inspected or repaired. Therefore, monitoring the EGT helps ensure the effectiveness of the engine anti-ice system.

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  • 16. 

    An engine compressor stall is caused by an interruption of compressor air flow and is identified by a loud pop and bang.what cockpit indications will occur?

    • Engine speed reduction and an increase in EGT.

    • Engine speed reduction and a decrease in EGT.

    • Engine speed reduction with no change in EGT.

    • Engine speed increase and an increase in EGT.

    Correct Answer
    A. Engine speed reduction and an increase in EGT.
    Explanation
    During an engine compressor stall, there is an interruption in the flow of air through the compressor. This can lead to a decrease in engine speed as the compressor is not able to maintain the required airflow. Additionally, the interruption in airflow can cause an increase in exhaust gas temperature (EGT) as the fuel-air mixture is not being properly compressed and burned. Therefore, the correct answer is engine speed reduction and an increase in EGT.

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  • 17. 

    With aircraft engines running, should you encounter a generator failure, refrain from attempting to reset the generator more than _______ time(s) due to danger of generator burning?

    • 1

    • 2

    • 3

    • Do not reset generator.

    Correct Answer
    A. 1
    Explanation
    If an aircraft engine is running and there is a generator failure, it is dangerous to attempt to reset the generator more than one time. This is because there is a risk of the generator burning.

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  • 18. 

    Engine start time is measured from ______________________ to _________________________.

    • Initial fuel flow, peak Idle EGT.

    • Throttle movement to Idle, peak Idle EGT.

    • Initial fuel flow, maximum nozzle position.

    • Pushing start button, peak Idle EGT.

    Correct Answer
    A. Initial fuel flow, peak Idle EGT.
    Explanation
    The engine start time is measured from the initial fuel flow, which is the moment fuel starts flowing into the engine, to the peak Idle EGT (Exhaust Gas Temperature), which is the highest temperature reached during idle. This measurement helps determine the efficiency and performance of the engine during startup.

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  • 19. 

    What is the correct Military Power RPM for the J-85 engine used in the T-38C?

    • 99-100%

    • 99-101%

    • 99-100.5%

    • 98-100%

    Correct Answer
    A. 99-100%
    Explanation
    The correct Military Power RPM for the J-85 engine used in the T-38C is 99-100%.

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  • 20. 

    After aircraft forms have been reviewed and prior to engine start, what should be ensured?

    • Accessories and attachments are secured.

    • Fire suppression equipment has been placed within 20' of aircraft.

    • Clearance has been secured by contacting the Maintenance Production Superintendent.

    • Aircraft is grounded properly.

    Correct Answer
    A. Accessories and attachments are secured.
    Explanation
    Before starting the engine, it is important to ensure that all accessories and attachments on the aircraft are properly secured. This is crucial for the safety and proper functioning of the aircraft during the flight. If any accessories or attachments are loose or not properly secured, it can lead to malfunctions or accidents during the flight. Therefore, prior to engine start, it is necessary to check and ensure that all accessories and attachments are securely in place.

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  • 21. 

    What is the correct Idle RPM for the J-85 engine used in the T-38C?

    • 47-49%

    • 48-50%

    • 47-50%

    • 46-49%

    Correct Answer
    A. 47-49%
    Explanation
    The correct idle RPM for the J-85 engine used in the T-38C is 47-49%. This means that when the engine is at idle, it should be running at a speed between 47% and 49% of its maximum RPM. This range ensures that the engine is operating at a stable and efficient idle speed, allowing for smooth and reliable operation of the aircraft.

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  • 22. 

    If a sudden change of _____ PSIG or greater in oil pressure indicated occurs at any stabilized RPM, it is a cause for immediate shutdown and investigation.

    • 10

    • 8

    • 12

    • 9

    Correct Answer
    A. 10
    Explanation
    A sudden change of 10 PSIG or greater in oil pressure indicates a significant and potentially dangerous fluctuation. Such a change could indicate a malfunction or failure in the system, which could lead to further damage or even catastrophic failure if not addressed immediately. Therefore, any sudden change of this magnitude requires an immediate shutdown and investigation to identify and rectify the issue before it worsens.

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  • 23. 

    Upon completion of engine run in the T38C aircraft, engines should be operated for _____ minutes at _____ RPM to cool before shutdown. 

    • 2, Idle

    • 1, 70%

    • 2, 75%

    • 2, 70%

    Correct Answer
    A. 2, 70%
    Explanation
    After completing the engine run in the T38C aircraft, it is recommended to operate the engines for 2 minutes at 70% RPM before shutting them down. This allows the engines to cool down gradually and prevents any potential damage that could occur from sudden shutdown.

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  • 24. 

    If, during T-38C engine operation if there is an indication of smoke, fumes, or odor in the cockpit, which sequence of events is the most correct?

    • Throttles - Idle, Cabin Pressure Switch - RAM Dump, Canopy - Open, Throttles - Off, Battery - Off.

    • Throttles - Off, Battery - Off, Canopy - Open, Investigate Odor.

    • Throttles - Idle, Cabin Pressure Switch - As required, Canopy - Open, Throttles - Off, Abandon aircraft.

    • Throttles - Off, Cabin Pressure Switch - RAM Dump, Fuel Shutoff Switches - Off, Battery - Off.

    Correct Answer
    A. Throttles - Idle, Cabin Pressure Switch - RAM Dump, Canopy - Open, Throttles - Off, Battery - Off.
    Explanation
    If there is an indication of smoke, fumes, or odor in the cockpit during T-38C engine operation, the most correct sequence of events is to first set the throttles to idle to reduce engine power. Then, activate the cabin pressure switch to perform a RAM dump, which helps to clear any smoke or fumes from the cockpit. Next, open the canopy to allow fresh air to enter the cockpit. Afterward, turn the throttles off to shut down the engines and finally, turn off the battery to cut off all electrical power. This sequence ensures the safety of the pilot and minimizes the risk of any further damage or danger.

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  • 25. 

    In the cockpit of the T-38C aircraft, where are the Fire Warning lights located?

    • Main Instrument Panel, Both Cockpits.

    • Word Caution Panel, Both Cockpits.

    • Multifunction Display, Both Cockpits.

    • Main Instrument Panel, Front Cockpit.

    Correct Answer
    A. Main Instrument Panel, Both Cockpits.
    Explanation
    The Fire Warning lights in the cockpit of the T-38C aircraft are located on the Main Instrument Panel in both cockpits.

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  • 26. 

    The T-38C Static Inverter converts electricity from the DC Bus to what voltage?

    • 115 VAC

    • 115 VDC

    • 400 VAC

    • 400 VDC

    • 225 VAC

    Correct Answer
    A. 115 VAC
    Explanation
    The T-38C Static Inverter converts electricity from the DC Bus to 115 VAC voltage.

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  • 27. 

    Maximum allowable oil consumption of the J-85 engine is _______ ounces per hour.

    • 6

    • 8

    • 4

    • 7

    Correct Answer
    A. 6
    Explanation
    The maximum allowable oil consumption of the J-85 engine is 6 ounces per hour.

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  • 28. 

    During cold weather engine operation of the J-85, if engine oil pressure exceeds 55 PSIG, the engine should be shut down if the oil pressure does not drop after how many minutes? 

    • 6

    • 15

    • 4

    • 20

    Correct Answer
    A. 6
    Explanation
    If the engine oil pressure of the J-85 exceeds 55 PSIG during cold weather engine operation and does not drop within 6 minutes, the engine should be shut down.

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  • 29. 

    What is the Variable Exhaust Nozzle (VEN) position at Idle on the J-85 engine?

    • 77-92%

    • 70-92%

    • 65-92%

    • 77-90%

    • 50-85%

    Correct Answer
    A. 77-92%
    Explanation
    The Variable Exhaust Nozzle (VEN) position at Idle on the J-85 engine is 77-92%. This means that the VEN is adjusted to be within this range when the engine is at idle. The VEN helps to control the exhaust flow and optimize engine performance at different operating conditions.

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  • 30. 

    What is the maximum acceleration time from Idle to Military Power on the J-85 engine?

    • 10 seconds

    • 12 seconds

    • 8 seconds

    • 9 seconds

    Correct Answer
    A. 10 seconds
    Explanation
    The maximum acceleration time from Idle to Military Power on the J-85 engine is 10 seconds. This means that it takes a maximum of 10 seconds for the engine to go from idle to its highest power setting.

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  • 31. 

    When shutting down engines, monitor Exhaust Gas Temperature (EGT) for Post Shutdown fire. EGT must not exceed _______ .

    • 350°C

    • 400°C

    • 300°C

    • 325°C

    Correct Answer
    A. 350°C
    Explanation
    When shutting down engines, it is important to monitor the Exhaust Gas Temperature (EGT) to prevent post shutdown fires. The correct answer is 350°C because exceeding this temperature could indicate a potential fire hazard. By keeping the EGT below 350°C, the risk of a fire occurring during the shutdown process is minimized.

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  • 32. 

    What are the normal fuel flow limits for the J-85 engine operating at Idle?

    • 400-600 PPH

    • 500-600 PPH

    • 400-700 PPH

    • 500-700 PPH

    Correct Answer
    A. 400-600 PPH
    Explanation
    The normal fuel flow limits for the J-85 engine operating at Idle are 400-600 PPH.

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  • 33. 

    When trimming the J-85 engine in the T-38C aircraft, which switch position is correct?

    • Cabin Pressure in Ram Dump

    • Anti-Ice in Manual On

    • EGI in On

    • Cabin Pressure in Guarded

    Correct Answer
    A. Cabin Pressure in Ram Dump
    Explanation
    When trimming the J-85 engine in the T-38C aircraft, the correct switch position is "Cabin Pressure in Ram Dump." This means that the cabin pressure should be set to the ram dump mode. Ram dump is a mode in which the cabin pressure is automatically adjusted to maintain a safe and comfortable environment for the occupants of the aircraft. This switch position ensures that the cabin pressure is properly regulated during the engine trimming process.

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  • 34. 

    Following rapid throttle movements, nozzle position should stabilize within permissible flux range within _______ seconds?

    • 10

    • 9

    • 11

    • 7

    Correct Answer
    A. 10
    Explanation
    After making rapid throttle movements, the nozzle position needs to stabilize within a certain range. The question asks how many seconds it should take for the nozzle position to stabilize. The correct answer is 10, indicating that it should take 10 seconds for the nozzle position to stabilize within the permissible flux range.

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  • 35. 

    What is the maximum RPM allowed on the flight line for installed engine run-up?

    • 75%

    • 70%

    • 50%

    • 65%

    Correct Answer
    A. 75%
    Explanation
    The maximum RPM allowed on the flight line for installed engine run-up is 75%. This means that during the engine run-up procedure, the RPM should not exceed 75% of the engine's maximum RPM capability. This limit is set to ensure the safety of the aircraft and prevent any potential damage to the engine or other components. By adhering to this limit, the aircraft can undergo necessary maintenance and testing while minimizing the risk of accidents or malfunctions.

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  • 36. 

    Should you have a No Start when attempting to start the installed J-85 engine, how long should you wait before attempting to restart?

    • 2 minutes

    • 5 minutes

    • 3 minutes

    • 10 minutes

    • 4 minutes

    Correct Answer
    A. 2 minutes
    Explanation
    If you experience a No Start when trying to start the J-85 engine, you should wait for 2 minutes before attempting to restart. This waiting period allows time for any potential issues to resolve themselves and for the engine to cool down if overheating was the cause of the initial problem. Restarting too quickly could potentially worsen the issue or cause further damage to the engine.

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  • 37. 

    When retarding throttles from military to Idle power, a momentary flicker of the generator light is acceptable, providing the generator comes back online?

    • 1 second

    • Instantly

    • 2 seconds

    • 3 seconds

    Correct Answer
    A. 1 second
    Explanation
    When retarding throttles from military to Idle power, a momentary flicker of the generator light is acceptable, providing the generator comes back online within 1 second. This means that a temporary interruption in the generator's operation is allowed, as long as it quickly resumes functioning.

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  • 38. 

    Engine inlet icing can occur without external signs. Avoid operating engines at temperatures between _____________ fahrenheit, if the dew point is within ______ of the dry bulb temperature.

    • 14°-41°, 7°

    • 14°-32°, 7°

    • 14°-45°, 7°

    • 14°-41°, 5°

    • 14°-35°, 7°

    Correct Answer
    A. 14°-41°, 7°
  • 39. 

    What are the hydraulic pressure limits on the T-38C aircraft operating at any engine RPM?

    • 3000 +/-150 PSIG

    • 3000 +/-100 PSIG

    • 2500-3000 PSIG

    • 2900 +/-150 PSIG

    Correct Answer
    A. 3000 +/-150 PSIG
    Explanation
    The correct answer is 3000 +/-150 PSIG. This means that the hydraulic pressure limits on the T-38C aircraft can range from 2850 to 3150 PSIG. This range allows for some flexibility in the hydraulic system while still maintaining a safe operating pressure.

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  • 40. 

    Once starting air has been applied during engine start of the J-85 engine, engine speed must reach a maximum of _____% RPM within ________ seconds before advancing throttles to Idle.

    • 14, 12

    • 12,12

    • 12,14

    • 10,10

    • 12,10

    Correct Answer
    A. 14, 12
    Explanation
    During the engine start of the J-85 engine, once starting air has been applied, the engine speed must reach a maximum of 14% RPM within 12 seconds before advancing the throttles to Idle.

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  • 41. 

    When engines are running in the T-38C aircraft, the Cabin Pressure switch should be in the _________________.

    • As required position

    • Guarded position

    • Off position

    • Open position

    Correct Answer
    A. As required position
    Explanation
    The correct answer is "As required position." When engines are running in the T-38C aircraft, the Cabin Pressure switch should be in the "As required position" to maintain the desired cabin pressure. The position of the switch may vary depending on the specific requirements of the flight and conditions, so it needs to be adjusted accordingly to ensure proper cabin pressurization.

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  • 42. 

    What is the maximum allowable transient RPM on the J-85 engine?

    • 107%

    • 105%

    • 104%

    • 106%

    Correct Answer
    A. 107%
    Explanation
    The maximum allowable transient RPM on the J-85 engine is 107%. This means that the engine can operate at a maximum of 107% of its normal operating RPM for a short period of time during transient conditions. This allows for a temporary increase in power output when needed, such as during takeoff or maneuvering. Operating the engine at higher RPMs for extended periods of time can cause damage and reduce its lifespan, so the maximum allowable transient RPM is set to ensure safe and reliable operation.

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  • 43. 

    If engine Exhaust Gas Temperature (EGT) does not begin to rise in _____ seconds after the first indication of fuel flow, abort start by placing throttles in the OFF position.

    • 12

    • 14

    • 8

    • 16

    Correct Answer
    A. 12
    Explanation
    If the engine Exhaust Gas Temperature (EGT) does not begin to rise within 12 seconds after the first indication of fuel flow, it is recommended to abort the start by placing the throttles in the OFF position. This is important because a delayed rise in EGT could indicate a potential issue with the engine start-up process, and it is safer to stop the start-up procedure to prevent any further damage or hazards.

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  • 44. 

    If Fuel Shutoff Switch is placed in the closed position while the engine speed is in excess of ______ RPM and the throttle is out of the off position, what component may be damaged? 

    • 10%, engine driven fuel pump.

    • 15%, engine driven fuel pump.

    • 10%, fuel cutoff switches.

    • 12%, engine driven fuel pump.

    • 10%, engine driven gearbox.

    Correct Answer
    A. 10%, engine driven fuel pump.
    Explanation
    If the Fuel Shutoff Switch is closed while the engine speed is above a certain RPM and the throttle is not in the off position, the engine driven fuel pump may be damaged. This suggests that the engine driven fuel pump is sensitive to the fuel shutoff switch being closed under these conditions.

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  • 45. 

    What are the normal fuel flow limits for the J-85 engine operating at Military Power?

    • 2100-2700 PPH

    • 2100-2500 PPH

    • 2000-2700 PPH

    • 2200-2500 PPH

    Correct Answer
    A. 2100-2700 PPH
    Explanation
    The normal fuel flow limits for the J-85 engine operating at Military Power are 2100-2700 PPH.

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  • 46. 

    The maximum duty cycle for the left and right ignition system consists of:

    • 4 consecutive 30 second starts, then 3 minutes off, then 4 more 30 second starts then 23 minutes off.

    • 3 consecutive 30 second starts, then 4 minutes off, then 3 more 30 second starts then 24 minutes off.

    • 4 consecutive 30 second starts, then 4 minutes off, then 5 more 30 second starts then 23 minutes off.

    • 3 consecutive 30 second starts, then 3 minutes off, then 4 more 30 second starts then 20 minutes off.

    Correct Answer
    A. 4 consecutive 30 second starts, then 3 minutes off, then 4 more 30 second starts then 23 minutes off.
    Explanation
    The correct answer is the option that allows for the maximum duty cycle for the left and right ignition system. This means that the system can perform the most consecutive starts without overheating or causing damage. The option that states "4 consecutive 30 second starts, then 3 minutes off, then 4 more 30 second starts then 23 minutes off" provides the longest duration of starts (8 starts in total) with sufficient time for cooling off periods in between. This ensures that the ignition system can operate effectively and safely without exceeding its maximum duty cycle.

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  • 47. 

    While operating the J-85 engine in the T-38C aircraft at any stabilized engine RPM, a sudden change of _____ PSIG in oil pressure is cause for engine shutdown and investigation.

    • 10

    • 15

    • 2

    • 8

    Correct Answer
    A. 10
    Explanation
    A sudden change of 10 PSIG in oil pressure while operating the J-85 engine in the T-38C aircraft at any stabilized engine RPM is cause for engine shutdown and investigation. This indicates that a significant and abrupt fluctuation in oil pressure could potentially indicate a malfunction or failure in the engine system, which requires immediate attention and investigation to ensure the safety and functionality of the aircraft.

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  • 48. 

    If the Cabin Altimeter reads _________ field elevation and the canopy is closed and locked, place the Cabin Pressure switch in the _________________ position before opening canopy.

    • Below, Ram Dump

    • Above, Ram Dump

    • Below, As Required

    • Above, As Required

    Correct Answer
    A. Below, Ram Dump
    Explanation
    When the cabin altimeter reads below field elevation and the canopy is closed and locked, it is necessary to place the Cabin Pressure switch in the "Ram Dump" position before opening the canopy. This is because the "Ram Dump" position allows for the release of any excess pressure in the cabin before opening the canopy, ensuring a safe and controlled environment for the pilot.

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  • 49. 

    The J-85 engine ignition system is energized for ___________ seconds, when either the start button is pressed or the throttle is placed in the Afterburner (MAX) position.

    • 30+/-3

    • 35+/-3

    • 30+/-5

    • 30+/-2

    • 35+/-2

    Correct Answer
    A. 30+/-3
    Explanation
    The J-85 engine ignition system is energized for approximately 30 seconds, with a possible variation of plus or minus 3 seconds. This occurs when either the start button is pressed or the throttle is placed in the Afterburner (MAX) position.

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Quiz Review Timeline (Updated): Aug 28, 2023 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Aug 28, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Aug 06, 2020
    Quiz Created by
    Ted Suchaski
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