water/waste systems Flashcards
POTABLE
potable is a term commonly used in aircraft to describe water fit for ________
POTABLE
potable is a term commonly used in aircraft to describe water fit for DRINKING
WATER PRESSURE CONTROL
included in the pressurising system is a _____ element filter, a pressure _________ to maintain the air pressure at __psi and a pressure ______ valve
where a compressor is used a _____ loop is provided to prevent water ________ the compressor
WATER PRESSURE CONTROL
included in the pressurising system is a PAPER element filter, a pressure REGULATOR to maintain the air pressure at 30psi and a pressure RELIEF valve
where a compressor is used a RISER loop is provided to prevent water ENTERING the compressor
TOILET WATER SUPPLY
a typical water heater with a capacity of about . litres is installed _____ each toilet
a _______ switch at the _______ of the water heater will regulate the water temperature to about __ celsius
if the cycling switch malfunctions, and the water temperature reaches approximately __ celsius, the overheat ______ will operate and switch off the ______ and the light
TOILET WATER SUPPLY
a typical water heater with a capacity of about 1.7 litres is installed UNDER each toilet
a CYCLING switch in the BOTTOM of the water heater will regulate the water temperature to about 50 celsius
if the cycling switch malfunctions, and the water temperature reaches approximately 90 celsius, the overheat SWITCH will operate and switch off the HEATER and the light
POTABLE WATER REPLENISHMENT
the water pressure used for replenishment will depend on the tank construction but is typically above __psi, with a maximum of __psi on some tanks
POTABLE WATER REPLENISHMENT
the water pressure used for replenishment will depend on the tank construction but is typically above 25psi, with a maximum of 55psi on some tanks
DISINFECTING PASSENGER SYSTEM
the passenger water system may be disinfected using a concentrated solution of _______ and _______
the following concentrated solution will result in a __ parts per million of acidified chlorine solution when added to a __ gallon water tank and will disinfect the water system in _ hour
- 9 fluid ounces (266ml) chlorine dioxide stabilised 2%
- 9 fluid ounces (266ml) acetic acid (vinegar)
- approximately 1 gallon (4 litres) clean water
let mixture stand for _ minutes to complete activation
an _________ amount of disinfectant solution in the passenger water system may contaminate filters and give an objectionable taste of __________ water
DISINFECTING PASSENGER SYSTEM
the passenger water system may be disinfected using a concentrated solution of CHLORINE and VINEGAR
the following concentrated solution will result in a 50 parts per million of acidified chlorine solution when added to a 30 gallon water tank and will disinfect the water system in 1 hour
- 9 fluid ounces (266ml) chlorine dioxide stabilised 2%
- 9 fluid ounces (266ml) acetic acid (vinegar)
- approximately 1 gallon (4 litres) clean water
let mixture stand for 5 minutes to complete activation
an EXCESSIVE amount of disinfectant solution in the passenger water system may contaminate filters and give an objectionable taste of CHLORINATED water
TYPICAL REMOVABLE TOILET
the removable or portable toilet is the simplest type of aircraft toilet. it is usually fitted in the smaller types of aircraft and was often called an _____ toilet. it is simply a bin containing a quantity of disinfectant and deodorant
TYPICAL REMOVABLE TOILET
the removable or portable toilet is the simplest type of aircraft toilet. it is usually fitted in the smaller types of aircraft and was often called an ELSAN toilet. it is simply a bin containing a quantity of disinfectant and deodorant
TYPICAL TOILET FLUSH OPERATION
motor _________ direction on each operation to prevent the rotating filter _____ becoming entangled with non-decomposable waste
TYPICAL TOILET FLUSH OPERATION
motor REVERSES direction on each operation to prevent the rotating filter MESH becoming entangled with non-decomposable waste
TYPICAL LIQUID FLUSH TOILET. PUMP AND FILTER
a reversible ______ phase 115V AC motor is fitted on top of the waste tank
TYPICAL LIQUID FLUSH TOILET. PUMP AND FILTER
a reversible THREE phase 115V AC motor is fitted on top of the waste tank
TOILET. DISC TYPE FILTER
a________ knife blade is mounted beside the disc stack, the blade extending into the _____ created by the spacers
when the filter is rotated, all the waste is combed through the slots by the cleaner blades
this type of filter will break down the waste particles to a size of ___microns
TOILET. DISC TYPE FILTER
a STATIONARY knife blade is mounted beside the disc stack, the blade extending into the SLOTS created by the spacers
when the filter is rotated, all the waste is combed through the slots by the cleaner blades
this type of filter will break down the waste particles to a size of 300microns
ELECTRIC TOILET FLUSH MOTORS
electric toilet flush motors must be fitted with a suitable _______ protection device (____ or circuit breaker) to prevent them overheating
ELECTRIC TOILET FLUSH MOTORS
electric toilet flush motors must be fitted with a suitable THERMAL protection device (FUSE or circuit breaker) to prevent them overheating
VACUUM TOILET OPERATION
when the aircraft is flying below 16000 feet, or on the ______, electrically driven _______ are used to pump air out of the storage tanks to create a ______
if the aircraft is below _______ feet, the vacuum blowers are switched on
VACUUM TOILET OPERATION
when the aircraft is flying below 16000 feet, or on the GROUND, electrically driven BLOWERS are used to pump air out of the storage tanks to create a VACUUM
if the aircraft is below 16000 feet, the vacuum blowers are switched on
TOILET SYSTEM SERVICE PANEL
after the toilet drain coupling is removed, a ____ check is carried out on the toilet drain ______. leakage from this point can result in the formation of ___ which might detach and damage the aircraft
the toilet waste drain fitting is ______ electrically to prevent the freezing of any liquid in the drain line which may leak past the drain _____
TOILET SYSTEM SERVICE PANEL
after the toilet drain coupling is removed, a LEAK check is carried out on the toilet drain OUTLET. leakage from this point can result in the formation of ICE which might detach and damage the aircraft
the toilet waste drain fitting is HEATED electrically to prevent the freezing of any liquid in the drain line which may leak past the drain VALVE
TOILET FIRE PRECAUTIONS
cap ___ requires that all toilet waste containers, provided for _________ materials, must be inspected at intervals not exceeding __ hours elapsed time
TOILET FIRE PRECAUTIONS
cap 747 requires that all toilet waste containers, provided for FLAMMABLE materials, must be inspected at intervals not exceeding 72 hours elapsed time
FIRE PROTECTION - TOILETS & CABIN, AIRCRAFT OVER 5700KG MTWA
cap ___ requires a ______ detector in each toilet compartment
the smoke detector must operate a warning _____ and/or _____ warning in the passenger ____. it may also operate a warning _____ on the flight deck
it is recommended that built in fire extinguishers be fitted in each toilet waste container
the automatic fire extinguisher will generally have _______ tips that melt about ___ Fahrenheit causing the bottle to discharge its contents into the waste compartment
on the outside of the waste compartment is typically a temperature ________ strip containing ____ heat sensitive patches that will turn _____ at the indicated temperatures serving as an indication if the bottle has been discharged
FIRE PROTECTION - TOILETS & CABIN, AIRCRAFT OVER 5700KG MTWA
cap 393 requires a SMOKE detector in each toilet compartment
the smoke detector must operate a warning LIGHT and/or AURAL warning in the passenger CABIN. it may also operate a warning LIGHT on the flight deck
it is recommended that built in fire extinguishers be fitted in each toilet waste container
the automatic fire extinguisher will generally have FUSIBLE tips that melt about 175 Fahrenheit causing the bottle to discharge its contents into the waste compartment
on the outside of the waste compartment is typically a temperature INDICATOR strip containing FOUR heat sensitive patches that will turn BLACK at the indicated temperatures serving as an indication if the bottle has been discharged
