Tradesman Exam Questions and
correct answers rated A+
The discharge piping serving a temperature and pressure relief valve must be: - correct answer
✔✔ Equal to the size of the valve outlet
A vertical vent pipe installed to provide circulation of air to and from any part of the drainage
system is know as a/an: - correct answer ✔✔ vent stack
Pipe, fittings, traps, fixtures, material or devices used in a plumbing system shall be: - correct
answer ✔✔ marked with identification of the manufacturer
Concealed slip joint connections on fixtures shall be: - correct answer ✔✔ accessible
The gas shutoff valve on water heaters must be of an approved type and installed: - correct
answer ✔✔ less than 3 feet from the water heater and in the same room
To prevent turbulence and flow loss, piping must be: - correct answer ✔✔ reamed to full bore
Horizontal drainage piping 2 inches or less in diameter shall be installed with a fall of not less
than _____ of an inch per foot. - correct answer ✔✔ 1/4
Horizontal vent pipes shall be level or graded as to drip back by gravity to: - correct answer ✔✔
the main vent pipe
In a vertical stack, the use of a wye and 1/8 bend for a trap connection could create: - correct
answer ✔✔ an "S" trap
, Which test medium cannot be used for testing a fuel gas system - correct answer ✔✔ Carbon
dioxide
At least six hours of Board-approved continuing education is required of: - correct answer ✔✔
any licensee who wishes to renew a license
The lowest point in the cross-section of the horizontal waterway at the exit of a trap is called
a/an: - correct answer ✔✔ crown weir
The vertical distance between the crown weir and the top dip of the trap is called the: - correct
answer ✔✔ trap seal
Water that is satisfactory for drinking, culinary, and domestic purposes and that meets the
requirements of the Health Authority Having Jurisdiction is called: - correct answer ✔✔ potable
water
A pipe that does not connect directly with the drainage system but conveys liquid wastes by
discharging into a plumbing fixture, interceptor, or receptacle that is directly connected to the
drainage system is called a/an: - correct answer ✔✔ indirect waste pipe
The slope or fall of a line of pipe in reference to a horizontal plane, usually expressed as the fall
in fraction of a inch or percentage slope per foot length of pipe is called: - correct answer ✔✔
grade
The length along the center line of a pipe and fittings is called: - correct answer ✔✔ developed
length
correct answers rated A+
The discharge piping serving a temperature and pressure relief valve must be: - correct answer
✔✔ Equal to the size of the valve outlet
A vertical vent pipe installed to provide circulation of air to and from any part of the drainage
system is know as a/an: - correct answer ✔✔ vent stack
Pipe, fittings, traps, fixtures, material or devices used in a plumbing system shall be: - correct
answer ✔✔ marked with identification of the manufacturer
Concealed slip joint connections on fixtures shall be: - correct answer ✔✔ accessible
The gas shutoff valve on water heaters must be of an approved type and installed: - correct
answer ✔✔ less than 3 feet from the water heater and in the same room
To prevent turbulence and flow loss, piping must be: - correct answer ✔✔ reamed to full bore
Horizontal drainage piping 2 inches or less in diameter shall be installed with a fall of not less
than _____ of an inch per foot. - correct answer ✔✔ 1/4
Horizontal vent pipes shall be level or graded as to drip back by gravity to: - correct answer ✔✔
the main vent pipe
In a vertical stack, the use of a wye and 1/8 bend for a trap connection could create: - correct
answer ✔✔ an "S" trap
, Which test medium cannot be used for testing a fuel gas system - correct answer ✔✔ Carbon
dioxide
At least six hours of Board-approved continuing education is required of: - correct answer ✔✔
any licensee who wishes to renew a license
The lowest point in the cross-section of the horizontal waterway at the exit of a trap is called
a/an: - correct answer ✔✔ crown weir
The vertical distance between the crown weir and the top dip of the trap is called the: - correct
answer ✔✔ trap seal
Water that is satisfactory for drinking, culinary, and domestic purposes and that meets the
requirements of the Health Authority Having Jurisdiction is called: - correct answer ✔✔ potable
water
A pipe that does not connect directly with the drainage system but conveys liquid wastes by
discharging into a plumbing fixture, interceptor, or receptacle that is directly connected to the
drainage system is called a/an: - correct answer ✔✔ indirect waste pipe
The slope or fall of a line of pipe in reference to a horizontal plane, usually expressed as the fall
in fraction of a inch or percentage slope per foot length of pipe is called: - correct answer ✔✔
grade
The length along the center line of a pipe and fittings is called: - correct answer ✔✔ developed
length
