11.11 hydraulic

Question 1

HOW IS ACCIDENTAL DEPLOYMENT OF THE RAT PREVENTED ON THE GROUND?

Answer 1

INSERTING A MECHANICAL SAFETY DEVICE.

Question 2

WHAT IS A HYDRAULIC DEMAND PUMP?

Answer 2

A UNIT THE OPERATES WHEN HYDRAULIC DEMAND IS GREATER THAN THE MAIN SYSTEM PRESSURISATION CAN COPE WITH

Question 3

WHEN CAN FIXED DISPLACEMENT HYDRAULIC PUMPS BE FOUND ON AIRCRAFT?

Answer 3

ON HYDRAULIC SERVICE PANELS AND TO OPEN DOORS.

Question 4

HOW IS IT POSSIBLE TO DE-PRESSURISE A HYDRAULIC RESEVIOUR FOR MAINTENANCE?

Answer 4

OPERATING A DE-PRESSURISING VALVE ON THE RESEVIOUR.

Question 5

SOME OF THE HYDRAULIC FLUID FROM THE PUMP IS USED FOR COOLING AND LUBRICATION OF THE PUMP ITSELF, WHERE DOES IT GO AFTERWARDS?

Answer 5

IT GOES TO THE CASE DRAIN

Question 6

WHICH OF THE FOLLOWING COMPONENTS OF A MULTI-PLUNGER PUMP DOES NOT ROTATE WHEN THE PUMP IS RUNNING?

Answer 6

THE WOBBLE PLATE/YOKE

Question 7

WHY ARE HYDRAULIC RESEVIOURS PRESSURISED?

Answer 7

TO PREVENT CAVITATION OF THE MAIN SYSTEM PUMPS.

Question 8

WHAT ARE THE BACKUP RINGS IN THE HYDRAULIC COMPONENTS MADE OF?

Answer 8

TEFLON OR NYLON

Question 9

HOW DOES THE RESEVOIR ENSURE A CONSTANT FLUID SUPPLY AT DIFFERENT FLIGHT ALTITUDES AND ACCELERATIONS?

Answer 9

BY USING SHEET METAL AS A BAFFLE.

Question 10

HOW IS THE OUTPUT OF A VARIABLE DISPLACEMENT PUMP VARIED?

Answer 10

BY CHANGING THE STOKE OF THE PISTONS