RED SEAL 901-1000-Exam Study
Material + Questions 100% Correct
Solutions
downstream
A diaphragm gas valve in a commercial appliance must be _____of the 100% shut off
valve and
the appliance regulator
15
What is the minimum length of hose permitted on a construction heater?
D3½
A properly cut thread on black iron pipe should allow how many hand turns with a
fitting?
once
How many times can disposable items be used?
one pipe gravity return
Which is not a hot water heating piping system?
one
A 4 inch drainage pipe must have a minimum grade of ______ percent
1"
The minimum vertical distance from the bottom of an indirect drain line to its receptor's
flood rim is _____________________________
, 5
When installing roof drains and leaders and provision is made for expansion, the
vertical distance from the roof to the base or first 90 degree fitting should not exceed
___feet.
barometric loop.
In some case piping can rise to a sufficient high level to prevent back siphonage. A piping
that rises at least 35 feet above the highest fixture it supplies is an example of the:
35
A 4" cast iron storm drainage system is 100 m long and has a hanger
on each end. How many hangers are required using the maximum allowable
distance between supports?
1
When a gas pip protrudes through a ceiling, there must be a minimum of ____
inch/inches of
unthreaded pipe visible.
kitchen exhaust ventilator
Which of the following fixtures has a link for activating a fire suppression system?
mycobacterium fortuitum
Which of the following is a microscopic germ that normally exists in
tap water in small numbers?
zone valve.
The device that controls the liquid through a specific section of piping is the:
shallow well.
Material + Questions 100% Correct
Solutions
downstream
A diaphragm gas valve in a commercial appliance must be _____of the 100% shut off
valve and
the appliance regulator
15
What is the minimum length of hose permitted on a construction heater?
D3½
A properly cut thread on black iron pipe should allow how many hand turns with a
fitting?
once
How many times can disposable items be used?
one pipe gravity return
Which is not a hot water heating piping system?
one
A 4 inch drainage pipe must have a minimum grade of ______ percent
1"
The minimum vertical distance from the bottom of an indirect drain line to its receptor's
flood rim is _____________________________
, 5
When installing roof drains and leaders and provision is made for expansion, the
vertical distance from the roof to the base or first 90 degree fitting should not exceed
___feet.
barometric loop.
In some case piping can rise to a sufficient high level to prevent back siphonage. A piping
that rises at least 35 feet above the highest fixture it supplies is an example of the:
35
A 4" cast iron storm drainage system is 100 m long and has a hanger
on each end. How many hangers are required using the maximum allowable
distance between supports?
1
When a gas pip protrudes through a ceiling, there must be a minimum of ____
inch/inches of
unthreaded pipe visible.
kitchen exhaust ventilator
Which of the following fixtures has a link for activating a fire suppression system?
mycobacterium fortuitum
Which of the following is a microscopic germ that normally exists in
tap water in small numbers?
zone valve.
The device that controls the liquid through a specific section of piping is the:
shallow well.
