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ATA 29
HYD
| Question | Answer |
|---|---|
| WHAT ARE THE PRIMARY AND DEMAND PUMPS IN THE LH AND RH HYD SYSTEM | E D P is primary & A C M P alternating current motor pump ( demand) |
| WHAT ARE THE PRIMERY AND DEMAND PUMPS IN THE CENTER SYSTEM | A C M P IS PRIMARY & A D P is DEMAND |
| WHAT IS THE MAX OPERATING FLUID TEMP FOR HYD OPERATION | 100 C OR 212 F |
| FLUID BELOW THE STANDPIPE IN LH AND RH RESERVOIR IS RESERVED FOR WHAT | ACMP |
| WHAT TYPE OF SENSOR PROVIDES HYD RESERVOIR FLUID TEMPERATURE INFO | R T D resistance temperature detector |
| WHAT CONTROLS THE OPERATION OF THE STRUT LOCATED E D P HYD SOV | FIRE HANDLE SWITCH |
| IN WHICH SYSTEM IS THE RESERVE BRAKES / STEERING SYSTEM | CENTER C 1 SYSTEM |
| HOW MANY HYDIM CARDS ARE THERE AND WHERE ARE THEY LOCATED | 4 LOCATED IN P84 &P85 |
| WHEN SWITCHED TO AUTO WHEN WILL THE LH & RH ACMP RUN | BELOW 30 FEET BELOW 60 KNOTS ENGINE NOT RUNNING LOW PRESSURE |
| WHAT DOES SELECTING A P5 EDP SWITCH TO OFF DO ON THE PUMP | ENERGIZE THE depressurize SOLENOID |
| NORMAL BRAKING IS PROVIDED BY WHICH SYSTEM | THE RIGHT SYSTEM |
| WHICH SYSTEM DOES NOT PROVIDE PRESSURE FOR THE STAB TRIM CONTROL MODULES | LEFT HAND SYSTEM |
| WHAT IS THE LOCATION OF THE HYDRAULIC SYSTEM ACCUMULATORS | stabilizer BAY |
| WHAT IS THE PURPOSE OF THE HYD SYSTEM ACCUMULATORS | SMOOTH PRESSURE FOR THE P C U - power control unit |
| WHEN WILL THE CENTER SYSTEM HYD ISOLATION VALVES AUTOMATICALLY CLOSE | AIR OR LESSSPEED ABOVE 60 KNOTS QTY DROPS TO 0.4 |
| WHEN WILL THE NOSE GEAR RESERVE ISOLATION VALVE RE-OPEN | ON LANDING BELOW 60 KNOTS |
| WHICH HYDIM CARD CONTROLS THE OPERATION OF THE CHIS - center hydraulic isolation system | CENTER LEFT ( CL ) HYD CARD |
| IN THE DMND MODE (AUTO SELECTED ) WHAT DIRECTLY SIGNALS AND CONTROLS THE OPERATION OF THE DEMAND PUMPS | HYDIM - hydraulic interface module CARDS |
| WITH A D Ps SWITHCED TO ON WHAT CONTROLS THE POWER SUPPLY TO THE PUMPS | L S C U - logic and speed control unit |
| WHAT PROVIDES PRIMARY SPEED CONTROL OF THE ADP | LSCU - logic and speed control unit |
| WHAT PROVIDES SECONDARY SPEED CONTROL OF THE A D P | M S O V - modulating and shutoff valve |
| WHAT CAN CAUSE BOTH A D P TO RUN IN DEMAND MODE IF SELECTED TO AUTO | AUTO SLAT OPERATION , GEAR RETRACTION ,TAKE OFF ROLL |
| IF BOTH A D P & M S O V SOLENOIDS ARE DE-ENERGIZED WHAT IS THE POSITION OF THE MSOV | CLOSED |
| IF BOTH C1 & C2 A D P ARE SWITCHED ON WHICH PUMP WILL OPERATE | C1 |
| WHAT IS THE INDICATION OF A HYDRAULIC RESERVOIR QUANTITY IS 0.4 OR LESS | LO ADVISORY MSG |
| UNDER WHAT FORCE IS THE RAT EXTENDED | SPRING LOADED |
| THE RAT CAN SUPPLY PRESSURE TO WHICH SYSTEMS | PRIMERY FLT CONTROL CENTER ONLY |
| WHICH HYD SYSTEM IS USED FOR THE RAT RETRACT ACTUATOR | BLUE SYSTEM ( CENTER ) |
| UNDER WHAT CONDITIONS WILL THE RAT DEPLY | LOW HYD PRESSURE ON ALL HYD SYSTEMS WITH AIR SPEED ABOVE 80 KNOTS |
| WHAT IS THE PURPOSE OF THE RAT MOTORING VALVE LEVER | BACK DRIVE & TEST THE RAT FROM THE BLUE SYSTEM |
| WHAT WILL CAUSE THE P5 RAT SWITCH PRESS INDICATION | WEN THE RAT IS PROVIDING MORE THAN 1500 PSI |
| WHEN CAN THE RAT BLADE LOCK SWITCH PREVENT STOWAGE OF THE RAT | AT 15 DEGREES |
| COLORS OF THE HYD SYSTEMS | RED , BLUE , GREEN |
| FLUID BELOW THE STANDPIPE CENTER RESERVOIR IS RESERVED FOR WHAT | NOSE WHEEL STEERING AND BRAKES |