PLUMBING SCHOOL YEAR 3 MODULE
#9 EXAM QUESTIONS AND ANSWERS
A touch faucet that is not functioning may be reset by disconnecting the battery for -
Answer-30 seconds
Before opening a water heater's drain valve, you must - Answer-close the cold-water
supply line
To heat water, an electric water heater uses an - Answer-immersion element
To help a water heater operate more efficiently and last longer, suggest that the
homeowner install a - Answer-water softener
A backing of water-resistant drywall should be used when installing - Answer-ceramic
tiles on tub or shower sidewalls
The most common widths for domestic dishwashers are 18 inches and - Answer-24
inches
Fixture traps protect against waste contamination by - Answer-maintaining a water seal
A __________________________________ is a tool used by plumbers to replace
valve and faucet seats. - Answer-removable seat wrench
A flexible metal wire inserted into a pipe to break up blockage is called an
___________________. - Answer-auger
A ___________________________is a lawn spigot connected to the water main that
works by having its valve located below the frost line. - Answer-yard hydrant
A tool used to remove packing from a valve stem is called a
____________________________. - Answer-packing extractor
______________________________ is the code of polite and appropriate behavior that
people observe in a public setting. - Answer-Ettiquette
The pressure water exerts on a piping system when there is no water flow is called
___________________________________. - Answer-static water pressure
A __________________________ is a large power auger designed to snake lines
through a floor or other drain. - Answer-drum machine
, The method of filtering water through cellulose acetate membranes used in some water
filters is called the ____________________________. - Answer-reverse osmosis
method
A tire valve stem used to correct low pressure in a tank is called a
_________________________. - Answer-Schrader valve
_____________________________ is an insulated copper wire wrapped around a pipe
to keep it from freezing. - Answer-Electric heat tape
Potable water that contains large amounts of mineral salts such as calcium and
magnesium is called ______________________ - Answer-hard water
An ____________________________________ is a water filter that uses charcoal to
absorb sulfur from potable water. - Answer-activated charcoal filter
Water that collects on a cold surface that has been exposed to warmer, humid air is
called ___________________________. - Answer-condensation
_____________________________ is the pressure water exerts on a piping system
when the water is flowing. - Answer-Dynamic water pressure
A hydrant installed in a building's exterior wall that works by draining water after the
valve is closed is called a ________________________. - Answer-Wall hydrant
A ____________________ is a drain consisting of a covered hole in the ground filled
with gravel. - Answer-dry well
A gasoline-powered machine that uses sections of straight steel rod to clean straight
runs of main lines is called a ____________________. - Answer-rodder
_____________________________ is a spring-like material used to pack valve stems
when preformed packing material is not available. - Answer-Twist packing
A device designed to remove small particles and organisms from the potable water
supply is called a ____________________________. - Answer-water filter
A ______________________ is a drain-cleaning machine that uses a stream of high-
pressure water to flush away blockages wile also power-washing the walls of the pipe. -
Answer-jetter
A tool designed to remove broken screws is called a ________________________. -
Answer-screw extractor
#9 EXAM QUESTIONS AND ANSWERS
A touch faucet that is not functioning may be reset by disconnecting the battery for -
Answer-30 seconds
Before opening a water heater's drain valve, you must - Answer-close the cold-water
supply line
To heat water, an electric water heater uses an - Answer-immersion element
To help a water heater operate more efficiently and last longer, suggest that the
homeowner install a - Answer-water softener
A backing of water-resistant drywall should be used when installing - Answer-ceramic
tiles on tub or shower sidewalls
The most common widths for domestic dishwashers are 18 inches and - Answer-24
inches
Fixture traps protect against waste contamination by - Answer-maintaining a water seal
A __________________________________ is a tool used by plumbers to replace
valve and faucet seats. - Answer-removable seat wrench
A flexible metal wire inserted into a pipe to break up blockage is called an
___________________. - Answer-auger
A ___________________________is a lawn spigot connected to the water main that
works by having its valve located below the frost line. - Answer-yard hydrant
A tool used to remove packing from a valve stem is called a
____________________________. - Answer-packing extractor
______________________________ is the code of polite and appropriate behavior that
people observe in a public setting. - Answer-Ettiquette
The pressure water exerts on a piping system when there is no water flow is called
___________________________________. - Answer-static water pressure
A __________________________ is a large power auger designed to snake lines
through a floor or other drain. - Answer-drum machine
, The method of filtering water through cellulose acetate membranes used in some water
filters is called the ____________________________. - Answer-reverse osmosis
method
A tire valve stem used to correct low pressure in a tank is called a
_________________________. - Answer-Schrader valve
_____________________________ is an insulated copper wire wrapped around a pipe
to keep it from freezing. - Answer-Electric heat tape
Potable water that contains large amounts of mineral salts such as calcium and
magnesium is called ______________________ - Answer-hard water
An ____________________________________ is a water filter that uses charcoal to
absorb sulfur from potable water. - Answer-activated charcoal filter
Water that collects on a cold surface that has been exposed to warmer, humid air is
called ___________________________. - Answer-condensation
_____________________________ is the pressure water exerts on a piping system
when the water is flowing. - Answer-Dynamic water pressure
A hydrant installed in a building's exterior wall that works by draining water after the
valve is closed is called a ________________________. - Answer-Wall hydrant
A ____________________ is a drain consisting of a covered hole in the ground filled
with gravel. - Answer-dry well
A gasoline-powered machine that uses sections of straight steel rod to clean straight
runs of main lines is called a ____________________. - Answer-rodder
_____________________________ is a spring-like material used to pack valve stems
when preformed packing material is not available. - Answer-Twist packing
A device designed to remove small particles and organisms from the potable water
supply is called a ____________________________. - Answer-water filter
A ______________________ is a drain-cleaning machine that uses a stream of high-
pressure water to flush away blockages wile also power-washing the walls of the pipe. -
Answer-jetter
A tool designed to remove broken screws is called a ________________________. -
Answer-screw extractor
