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A10 Test Cell Run
| Question | Answer |
|---|---|
| How many carts are installed in the test cell adapter fire bottle? | 2 |
| Test cell engine runs do not require FOD walks prior to engine start. | False |
| Except for in an emergency, the engine should be allowed to cool at idle for ___ minutes before shutting down | 5 |
| How many engine covers must be removed prior to operating the engine? | 3 |
| The VG schedule limits at idle are ____ | +/- 1.5 degree |
| During VG angle adjustment, one complete turn of the turn buckle will adjust VG angle 1.6 degrees. How much will one flat adjust? | .26 degree |
| While performing PLA Checks, ensure ____ | No personnel are near the fuel control lever |
| The fire protection assembly is stored in what area? | Munitions Storage |
| During a water wash, methanol is added to the water mixture when the temperature is below ____ | 40 degrees F |
| When the engine is operating at max, fuel flow should now exceed ____ pph. | 4,100 |
| What technical order outlined engine operating procedures on the test stand? | 2JA18-2-2-1 |
| After performing a hot engine preservation, what must the operator ensure before placing the throttle to mid range? | NG reaches 0 percent |
| The emergency stop switch will be used to shut down the engine only when ___? | Injury to personnel will result and all other means fail |
| If VG tracking exceeds -4.0 degree, what could the effect be on the engine? | First stage compressor blades can overstress |
| The test cell adapter may be towed below 5 MPH with the cowl doors in the open position if no wind is present. | False |
| What technical order outlines the test cell? | 33D4-6-212-51 |
| Idle RPM can be adjusted ____ | When then engine is shut down |
| The test cell adapter fire suppression system is used for ___ | Extinguishing an external fire |
| When adjusting engine trim using the T5 remote trim adjusting cable, you should ____ | Support the trim adjusting cable by hand. |
| During the engine start sequence, light-off should occur within ___ seconds after placing the ignition switch to on. | 20 |
| Higher than normal oil pressure may occur over a period of ___ minutes as long as pressure is decreasing towards normal value. | 6 |
| The idle trim limits are _____ | +1.0 percent |
| Oil samples will be taken within ___ minutes after engine shut-down | 30 |
| Test electrical wires may be secured to the engine using ____ | Disposable straps |
| A stray voltage check must be accomplished prior to connecting the fire bottle leads to ____ | Prevent the cartridges from firing inadvertently. |
| Engine start operations during cold conditions may be more difficult because of the viscosity of the fuel can be high | True |
| Under cold conditions, howl long should it take for the oil pressure to start decreasing towards normal operating PSI? | 2 1/2 minutes |
| With the inner shrould doors removed and the outer cowls opened, the maximum core percent RPM the engine can be operated at is ____ percent. | 70 |
| A slow start may occur at the first start of the day and may exceed ____ | 60 seconds |
| What is used to secure the rail pins in the down position on the 3000/4000 trailers? | Safety wire |
| During an engine start during cold conditions, the oil pressure could reach ___ PSI | 100 |
| How many personnel are required to perform an engine test cell run? | 3 |
| While servicing the engine oil tank, slowly pour oil into the right side of the oil fill tube because ___ | It is the opposite of the scupper drain |
| How many personnel are required to transfer an engine from the transportation trailer to the test adapter? | 3 |
| Due to the increased possibility of a fire during shut-down, what must be accomplished? | The air supply unit must be operating with the bleed air switch to off |
| Which of the following must be accomplished if the engine fails to light-off the test cell? | Air motor for two starter cycles to purge fuel from the engine |
| After shut down, an engine can be air motored once core speed is below 24 percent | False |
| During idle adjustment, the idle speed is altered ___ percent for each click on the fuel control | 0.2 |
| Which of the following conditions is an indication of an internal engine fire? | ITT rising rapidly toward 540 degree C |
| When adjusting max power using the T5 remote trim adjusting cable, turing the adjusting knob counterclockwise will ___ temp (ITT) | Increse |
| The fuel boost pump must continue to operate until ___ percent core RPM to provide positive fuel pressure | 0 |
| The danger area in front of the inlet is ___ | 25 feet |
| The maximum transient engine vibrations limit is ___ mils | 10 |
| Three calibrated TEMS vibration transducers must be installed and the corresponding calibration tags must be included in the work package. | Ture |
| A wet motor is accomplished ___ | By setting the engine throttle to idle with ignition switch off |
| Before installing an engine into the test adapter, ensure the thrust mount is located on the left side of the engine, aft looking forwar | False |
| The engine usually has six vibrations transducers installed. Which position has the lowest steady state limit of 2.0 mils? | Fan stator casing bottom radial |
| Who must be notified prior to engine start and upon completion of an engine run? | Maintenance Operation Center |
| When may the air turbine starter (ATS) limits be exceeded? | When motoring the engine to extinguish an internal fire |
| During an VG schedule or idle check, extreme caution must be used when approaching ___ core RPM. | 70 |
| What is the maximum start time for an engine that had been operating on the test cell within the past 30 minutes | 45 seconds |
| During the test cell engine start sequence, the operator should release the ATS and ignition switches at ___ core RPM | 56 percent |
| With the engine operating at idle, fuel flow should be below ___ pph | 600 |
| The danger area behind the exhaust is ___ | 160 feet |
| What must be completed after every JOAP sample? | DD Form 2026 |
| When installing the test adapter inlet assembly, the engine inlet ring should be compressed at least ___ | 3/8 to 1/2 inch |
| The maximum steady state engine vibrations is ___ mils | 7 |
| When the engine is operating on the test cell, the fire guard will be positioned in the ____ | Test cell cab |
| The maximum engine operating time at 860 degree C is ____ | 5 minutes |
| All ground personnel must be briefed by the operator prior to engine run on safety procedures and the correct course of action to use during an embergency | True |
| An Indication that the bleed air valve has failed during engine operation could be ___ | An increase in air pressure on the air start gauge |
| When adjusting maximum power fan speed, six clicks using the T5 remote trim cable alters ITT by 6 degree C or ___ percent NF RPM | 1/2 |
| What must be accomplished every time the engine is operated prior to the completion of the transient break-in? | 2-minute air motor |
| During the engine break-in runs, the engine NG acceleration or decelerations rates shall not exceed | 1,000 RPM |
| The slave filter must be installed for test rung when what item is replaced | Accessory gearbox |
| The ___ must be inspected for serviceability prior to stalling the main fuel hose. | O-ring |
| After motoring or operating a engine, what should the fire guard do? | Listen for unusual rubbing or scrapping noises from the engine. |
| Maximum ITT during engine start on the test cell is ___ | 860 degree C |
| An engine must be air motored after each shut down prior to the transient break-in runs being accomplished | True |
| The air turbine starter duty cycle is | 2 minutes on, 5 minutes off |
| What is the maximum ITT for an engine with a new HPT? | 830 degree C |
| Normal engine oil pressure during engine operations is ___ | 39-90 PSI |
| What should you do if the ATS curs out below 45 percent core RPM during the start cycle? | Stopcock the throttle |
| A hot start is defined as | During a start attempt, engine temperature rises to 860 degree/865 degree C prior to engine reaching idle speed |
| The test adapter fire protection assembly is stored at Munitions Storage | True |
Created by:
airpower326
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