MINNEAPOLIS JOURNEYMAN PLUMBER WITH GAS - 498-
MN-MI CONTRACTOR EXAM COMPREHENSIVE PRACTICE
EXAM - 400 QUESTIONS
==========================================================
======
SECTION 1: MINNESOTA PLUMBING CODE - GENERAL ADMINISTRATION (Questions
1-35)
==========================================================
======
1. According to Minnesota Administrative Rules Chapter 4714, which entity has primary
authority to enforce plumbing codes in Minnesota?
A) Local municipal building departments
B) Minnesota Department of Health
C) Minnesota Department of Labor and Industry
D) Minnesota Pollution Control Agency
ANSWER: C) Minnesota Department of Labor and Industry
EXPLANATION: The Minnesota Department of Labor and Industry (DLI) has
administrative authority to enforce plumbing codes and oversee compliance. Local
municipalities may administer codes but operate under DLI oversight [citation:8].
----------------------------------------------------------------
2. The Minnesota Plumbing Code (Chapter 4714) is founded upon how many basic
principles of environmental sanitation and safety?
A) 12 principles
B) 18 principles
,C) 23 principles
D) 25 principles
ANSWER: C) 23 principles
EXPLANATION: According to Minnesota Rules 4714.0100, the code is founded upon 23
basic principles of environmental sanitation and safety. These principles define the intent
when interpretations are required or unforeseen situations arise [citation:3][citation:6].
----------------------------------------------------------------
3. According to Minnesota Rules 4714.0100, which basic principle requires that all premises
intended for human habitation be provided with?
A) A connection to public sewer
B) A potable water supply meeting Department of Health requirements
C) At least one bathroom
D) Adequate ventilation
ANSWER: B) A potable water supply meeting Department of Health requirements
EXPLANATION: Principle A states that all premises intended for human habitation shall be
provided with a potable water supply that meets the requirements of the commissioner of
health, and shall not be connected with unsafe water sources [citation:6].
----------------------------------------------------------------
4. Under Minnesota Rules 4714.0100, each family dwelling unit must have at least how
many plumbing fixtures to meet basic sanitation requirements?
A) One water closet, one lavatory
B) One water closet, one lavatory, one kitchen-type sink, one bathtub or shower
,C) One water closet, one bathtub or shower
D) One kitchen sink, one bathroom sink
ANSWER: B) One water closet, one lavatory, one kitchen-type sink, one bathtub or shower
EXPLANATION: Principle C requires each family dwelling unit to have at least one water
closet, one lavatory, one kitchen-type sink, and one bathtub or shower to meet the basic
requirements of sanitation and personal hygiene [citation:6].
----------------------------------------------------------------
5. According to Minnesota Rules 4714.0100, how shall the drainage system be designed to
conduct wastewater?
A) At maximum possible velocity
B) With velocities that prevent fouling, deposition of solids, and clogging
C) At minimum velocity to reduce pipe wear
D) At variable velocities based on time of day
ANSWER: B) With velocities that prevent fouling, deposition of solids, and clogging
EXPLANATION: Principle F requires the drainage system to be designed, constructed, and
maintained to conduct wastewater with velocities that prevent fouling, deposition of solids,
and clogging [citation:6].
----------------------------------------------------------------
6. The Minnesota Plumbing Code requires an adequate number of what components so
arranged that pipes may be readily cleaned in case of stoppage?
A) Access panels
B) Cleanouts
, C) Inspection ports
D) Junction boxes
ANSWER: B) Cleanouts
EXPLANATION: Principle G requires the drainage system to be provided with an adequate
number of cleanouts so arranged that in case of stoppage the pipes may be readily cleaned
[citation:6].
----------------------------------------------------------------
7. According to Minnesota Rules 4714.0100, where shall each vent terminal extend?
A) To the attic space
B) To the outer air
C) To the sewer main
D) To the crawl space
ANSWER: B) To the outer air
EXPLANATION: Principle I requires each vent terminal to extend to the outer air and be so
installed as to minimize the possibilities of clogging and the return of foul air to the building
[citation:6].
----------------------------------------------------------------
8. Minnesota Plumbing Code prohibits which substances from entering the drainage
system?
A) Substances that will clog pipes
B) Substances that produce explosive mixtures
C) Substances that destroy pipes or joints
MN-MI CONTRACTOR EXAM COMPREHENSIVE PRACTICE
EXAM - 400 QUESTIONS
==========================================================
======
SECTION 1: MINNESOTA PLUMBING CODE - GENERAL ADMINISTRATION (Questions
1-35)
==========================================================
======
1. According to Minnesota Administrative Rules Chapter 4714, which entity has primary
authority to enforce plumbing codes in Minnesota?
A) Local municipal building departments
B) Minnesota Department of Health
C) Minnesota Department of Labor and Industry
D) Minnesota Pollution Control Agency
ANSWER: C) Minnesota Department of Labor and Industry
EXPLANATION: The Minnesota Department of Labor and Industry (DLI) has
administrative authority to enforce plumbing codes and oversee compliance. Local
municipalities may administer codes but operate under DLI oversight [citation:8].
----------------------------------------------------------------
2. The Minnesota Plumbing Code (Chapter 4714) is founded upon how many basic
principles of environmental sanitation and safety?
A) 12 principles
B) 18 principles
,C) 23 principles
D) 25 principles
ANSWER: C) 23 principles
EXPLANATION: According to Minnesota Rules 4714.0100, the code is founded upon 23
basic principles of environmental sanitation and safety. These principles define the intent
when interpretations are required or unforeseen situations arise [citation:3][citation:6].
----------------------------------------------------------------
3. According to Minnesota Rules 4714.0100, which basic principle requires that all premises
intended for human habitation be provided with?
A) A connection to public sewer
B) A potable water supply meeting Department of Health requirements
C) At least one bathroom
D) Adequate ventilation
ANSWER: B) A potable water supply meeting Department of Health requirements
EXPLANATION: Principle A states that all premises intended for human habitation shall be
provided with a potable water supply that meets the requirements of the commissioner of
health, and shall not be connected with unsafe water sources [citation:6].
----------------------------------------------------------------
4. Under Minnesota Rules 4714.0100, each family dwelling unit must have at least how
many plumbing fixtures to meet basic sanitation requirements?
A) One water closet, one lavatory
B) One water closet, one lavatory, one kitchen-type sink, one bathtub or shower
,C) One water closet, one bathtub or shower
D) One kitchen sink, one bathroom sink
ANSWER: B) One water closet, one lavatory, one kitchen-type sink, one bathtub or shower
EXPLANATION: Principle C requires each family dwelling unit to have at least one water
closet, one lavatory, one kitchen-type sink, and one bathtub or shower to meet the basic
requirements of sanitation and personal hygiene [citation:6].
----------------------------------------------------------------
5. According to Minnesota Rules 4714.0100, how shall the drainage system be designed to
conduct wastewater?
A) At maximum possible velocity
B) With velocities that prevent fouling, deposition of solids, and clogging
C) At minimum velocity to reduce pipe wear
D) At variable velocities based on time of day
ANSWER: B) With velocities that prevent fouling, deposition of solids, and clogging
EXPLANATION: Principle F requires the drainage system to be designed, constructed, and
maintained to conduct wastewater with velocities that prevent fouling, deposition of solids,
and clogging [citation:6].
----------------------------------------------------------------
6. The Minnesota Plumbing Code requires an adequate number of what components so
arranged that pipes may be readily cleaned in case of stoppage?
A) Access panels
B) Cleanouts
, C) Inspection ports
D) Junction boxes
ANSWER: B) Cleanouts
EXPLANATION: Principle G requires the drainage system to be provided with an adequate
number of cleanouts so arranged that in case of stoppage the pipes may be readily cleaned
[citation:6].
----------------------------------------------------------------
7. According to Minnesota Rules 4714.0100, where shall each vent terminal extend?
A) To the attic space
B) To the outer air
C) To the sewer main
D) To the crawl space
ANSWER: B) To the outer air
EXPLANATION: Principle I requires each vent terminal to extend to the outer air and be so
installed as to minimize the possibilities of clogging and the return of foul air to the building
[citation:6].
----------------------------------------------------------------
8. Minnesota Plumbing Code prohibits which substances from entering the drainage
system?
A) Substances that will clog pipes
B) Substances that produce explosive mixtures
C) Substances that destroy pipes or joints
