Practice plumbing Red seal---Fall 2026/2027- Exam bank
Questions With Complete Solutions
A boiler that is often used as an "on-demand" hot water heater is
a _______ boiler Correct Answers wall-hung direct vent
A characteristic of electrical hot water tanks is the _____time for
replenishing the hot water supply Correct Answers Slow
A chemical-free iron filter uses ______ to begin the oxidation of
the ferrous iron during water treatment. Correct Answers
Injected Air
A driveshoe is usually connected to the bottom of the Correct
Answers Well casing
A field built shock absorber use in installation of water systems
should be _____mm to 450 mm long if made from the same size
pipe as the water pipe it serves. Correct Answers 300mm
A fillet weld would NOT be used on what type of joint? Correct
Answers Butt
A gas that is commonly used in the disinfecting of water is
__________. Correct Answers Chlorine
A major disadvantage of the wet standpipe system is that it
Correct Answers must be shut down completely if repairs are
required.
,A method of water treatment that involves evaporation and
condensation of water is Correct Answers Distillation
A radiant floor heating system will have its lowest pressure
point at the: Correct Answers pump inlet.
A rapid increase in the temperature will cause the _______
detector to activate Correct Answers Rate of Rise
A relief vent is required when you have an offset in a horizontal
branch or building drain that is more than ____degrees Correct
Answers 45
A rural residential water softener must be installed _______
stream from the hot water tank. Correct Answers Up
A scaffold must be anchored by one tie-in for each how many
metres vertical interval? Correct Answers It must be at 4.6
metre vertical interval.
A scaffold must be designed and constructed to support at least
how many times the load that may be imposed off of it? Correct
Answers It must be able to support at least 4 times the load that
may be imposed off of it.
A sewer tape is Correct Answers another name for a drainage
tape.
A spud wrench in the plumbing trade is typically used for
tightening Correct Answers Hex Nuts
, A strainer is installed on the _______ of a pressure-reducing
valve Correct Answers High pressure side
A stringy slimy growth in the tank of a water closet will indicate
the presence of ____________ in the water supply. Correct
Answers bacterial iron
A welding machine with a 60% duty cycle can operate at rated
amperage for how many minutes out of every 10 minutes
without over heating Correct Answers 6 minutes
ABS and PVC pipe have a _____resistance to a wide range of
chemicals Correct Answers High
According to the NFPA, water flow alarms and supervisory
devices used on standpipe systems should be tested Correct
Answers Quarterly
An alternate way to relieve pressure from a water heater is to use
an auxiliary thermal expansion relief valve set for a pressure of
____ psi Correct Answers 80psi
An emergency stop single can be given to a crane operator by:
Correct Answers anyone who notices a dangerous condition
As a general rule, what is the maximum material thickness for a
double-welded square grove weld in mm? Correct Answers
6.4mm
Bypass circulators must be installed on all ______ boilers
Correct Answers Low mass
Questions With Complete Solutions
A boiler that is often used as an "on-demand" hot water heater is
a _______ boiler Correct Answers wall-hung direct vent
A characteristic of electrical hot water tanks is the _____time for
replenishing the hot water supply Correct Answers Slow
A chemical-free iron filter uses ______ to begin the oxidation of
the ferrous iron during water treatment. Correct Answers
Injected Air
A driveshoe is usually connected to the bottom of the Correct
Answers Well casing
A field built shock absorber use in installation of water systems
should be _____mm to 450 mm long if made from the same size
pipe as the water pipe it serves. Correct Answers 300mm
A fillet weld would NOT be used on what type of joint? Correct
Answers Butt
A gas that is commonly used in the disinfecting of water is
__________. Correct Answers Chlorine
A major disadvantage of the wet standpipe system is that it
Correct Answers must be shut down completely if repairs are
required.
,A method of water treatment that involves evaporation and
condensation of water is Correct Answers Distillation
A radiant floor heating system will have its lowest pressure
point at the: Correct Answers pump inlet.
A rapid increase in the temperature will cause the _______
detector to activate Correct Answers Rate of Rise
A relief vent is required when you have an offset in a horizontal
branch or building drain that is more than ____degrees Correct
Answers 45
A rural residential water softener must be installed _______
stream from the hot water tank. Correct Answers Up
A scaffold must be anchored by one tie-in for each how many
metres vertical interval? Correct Answers It must be at 4.6
metre vertical interval.
A scaffold must be designed and constructed to support at least
how many times the load that may be imposed off of it? Correct
Answers It must be able to support at least 4 times the load that
may be imposed off of it.
A sewer tape is Correct Answers another name for a drainage
tape.
A spud wrench in the plumbing trade is typically used for
tightening Correct Answers Hex Nuts
, A strainer is installed on the _______ of a pressure-reducing
valve Correct Answers High pressure side
A stringy slimy growth in the tank of a water closet will indicate
the presence of ____________ in the water supply. Correct
Answers bacterial iron
A welding machine with a 60% duty cycle can operate at rated
amperage for how many minutes out of every 10 minutes
without over heating Correct Answers 6 minutes
ABS and PVC pipe have a _____resistance to a wide range of
chemicals Correct Answers High
According to the NFPA, water flow alarms and supervisory
devices used on standpipe systems should be tested Correct
Answers Quarterly
An alternate way to relieve pressure from a water heater is to use
an auxiliary thermal expansion relief valve set for a pressure of
____ psi Correct Answers 80psi
An emergency stop single can be given to a crane operator by:
Correct Answers anyone who notices a dangerous condition
As a general rule, what is the maximum material thickness for a
double-welded square grove weld in mm? Correct Answers
6.4mm
Bypass circulators must be installed on all ______ boilers
Correct Answers Low mass
