NYC DCAS Supervisor Mason Examination
Exam Practice Questions And Correct Answers
(Verified Answers) Plus Rationale 2026 Q&A|
Instant Download Pdf
1. A supervisor mason is reviewing plans for a large brick façade
restoration project. Before work begins, which action is most
important to ensure compliance with specifications and prevent costly
rework?
A. Allow workers to begin immediately and correct deficiencies later
B. Review contract drawings, specifications, and field conditions before
assigning work
C. Order all materials before reviewing the plans
D. Delegate all planning responsibilities to the most experienced mason
B. Review contract drawings, specifications, and field conditions before
assigning work
A thorough review of drawings, specifications, and actual site conditions
allows the supervisor to identify conflicts, clarify requirements, and
establish proper work procedures before labor and materials are
committed.
2. When laying brick masonry, maintaining uniform mortar joint thickness
is primarily important because it:
A. Reduces the need for supervision
B. Increases brick weight
,C. Promotes structural integrity and uniform appearance
D. Eliminates the need for tooling joints
C. Promotes structural integrity and uniform appearance
Uniform joints help distribute loads consistently, improve weather
resistance, and provide the finished masonry with a professional and
aesthetically pleasing appearance.
3. Which tool is most commonly used to verify that a wall is perfectly
vertical during construction?
A. Mason's hammer
B. Joint raker
C. Plumb bob
D. Trowel
C. Plumb bob
A plumb bob provides a reliable reference for true vertical alignment,
helping ensure walls are erected accurately and safely.
4. A supervisor observes mortar drying too quickly during hot weather.
What is the most appropriate corrective action?
A. Add excessive water after mortar has begun setting
B. Ignore the condition
C. Provide moisture control and adjust work practices according to
specifications
D. Replace mortar with concrete
C. Provide moisture control and adjust work practices according to
specifications
,Hot weather can accelerate moisture loss and weaken mortar
performance. Proper curing and moisture management help maintain
strength and bond quality.
5. Which bond pattern is commonly recognized for its strength and
appearance in brick masonry?
A. Running bond
B. Random bond
C. Spiral bond
D. Vertical bond
A. Running bond
Running bond is widely used because staggered vertical joints improve
load distribution and provide a traditional appearance.
6. The primary purpose of expansion joints in masonry construction is to:
A. Increase wall weight
B. Accommodate movement caused by temperature and moisture changes
C. Reduce mortar usage
D. Eliminate the need for reinforcement
B. Accommodate movement caused by temperature and moisture changes
Expansion joints help prevent cracking by allowing masonry units to
expand and contract without damaging the structure.
7. A supervisor must schedule workers for multiple projects. Which
management principle best improves productivity?
A. Assigning workers randomly
B. Matching employee skills to job requirements
C. Ignoring project priorities
D. Rotating employees daily regardless of experience
, B. Matching employee skills to job requirements
Assigning personnel according to their abilities increases efficiency,
improves workmanship, and reduces delays.
8. Efflorescence appearing on a masonry wall is generally caused by:
A. Excessive reinforcement
B. Soluble salts migrating to the surface with moisture
C. Excessive tooling of joints
D. Lack of brick color variation
B. Soluble salts migrating to the surface with moisture
Efflorescence occurs when water dissolves salts within masonry materials
and deposits them on the surface as the moisture evaporates.
9. Which document typically establishes the detailed requirements for
materials and workmanship on a public construction project?
A. Payroll record
B. Employee evaluation form
C. Contract specifications
D. Delivery ticket only
C. Contract specifications
Specifications provide detailed standards governing materials, installation
methods, quality requirements, and testing procedures.
10. The safest procedure when erecting scaffolding is to:
A. Use damaged components if repairs are planned later
B. Follow manufacturer requirements and applicable safety regulations
C. Ignore load ratings when schedules are tight
D. Permit unauthorized modifications
B. Follow manufacturer requirements and applicable safety regulations
Exam Practice Questions And Correct Answers
(Verified Answers) Plus Rationale 2026 Q&A|
Instant Download Pdf
1. A supervisor mason is reviewing plans for a large brick façade
restoration project. Before work begins, which action is most
important to ensure compliance with specifications and prevent costly
rework?
A. Allow workers to begin immediately and correct deficiencies later
B. Review contract drawings, specifications, and field conditions before
assigning work
C. Order all materials before reviewing the plans
D. Delegate all planning responsibilities to the most experienced mason
B. Review contract drawings, specifications, and field conditions before
assigning work
A thorough review of drawings, specifications, and actual site conditions
allows the supervisor to identify conflicts, clarify requirements, and
establish proper work procedures before labor and materials are
committed.
2. When laying brick masonry, maintaining uniform mortar joint thickness
is primarily important because it:
A. Reduces the need for supervision
B. Increases brick weight
,C. Promotes structural integrity and uniform appearance
D. Eliminates the need for tooling joints
C. Promotes structural integrity and uniform appearance
Uniform joints help distribute loads consistently, improve weather
resistance, and provide the finished masonry with a professional and
aesthetically pleasing appearance.
3. Which tool is most commonly used to verify that a wall is perfectly
vertical during construction?
A. Mason's hammer
B. Joint raker
C. Plumb bob
D. Trowel
C. Plumb bob
A plumb bob provides a reliable reference for true vertical alignment,
helping ensure walls are erected accurately and safely.
4. A supervisor observes mortar drying too quickly during hot weather.
What is the most appropriate corrective action?
A. Add excessive water after mortar has begun setting
B. Ignore the condition
C. Provide moisture control and adjust work practices according to
specifications
D. Replace mortar with concrete
C. Provide moisture control and adjust work practices according to
specifications
,Hot weather can accelerate moisture loss and weaken mortar
performance. Proper curing and moisture management help maintain
strength and bond quality.
5. Which bond pattern is commonly recognized for its strength and
appearance in brick masonry?
A. Running bond
B. Random bond
C. Spiral bond
D. Vertical bond
A. Running bond
Running bond is widely used because staggered vertical joints improve
load distribution and provide a traditional appearance.
6. The primary purpose of expansion joints in masonry construction is to:
A. Increase wall weight
B. Accommodate movement caused by temperature and moisture changes
C. Reduce mortar usage
D. Eliminate the need for reinforcement
B. Accommodate movement caused by temperature and moisture changes
Expansion joints help prevent cracking by allowing masonry units to
expand and contract without damaging the structure.
7. A supervisor must schedule workers for multiple projects. Which
management principle best improves productivity?
A. Assigning workers randomly
B. Matching employee skills to job requirements
C. Ignoring project priorities
D. Rotating employees daily regardless of experience
, B. Matching employee skills to job requirements
Assigning personnel according to their abilities increases efficiency,
improves workmanship, and reduces delays.
8. Efflorescence appearing on a masonry wall is generally caused by:
A. Excessive reinforcement
B. Soluble salts migrating to the surface with moisture
C. Excessive tooling of joints
D. Lack of brick color variation
B. Soluble salts migrating to the surface with moisture
Efflorescence occurs when water dissolves salts within masonry materials
and deposits them on the surface as the moisture evaporates.
9. Which document typically establishes the detailed requirements for
materials and workmanship on a public construction project?
A. Payroll record
B. Employee evaluation form
C. Contract specifications
D. Delivery ticket only
C. Contract specifications
Specifications provide detailed standards governing materials, installation
methods, quality requirements, and testing procedures.
10. The safest procedure when erecting scaffolding is to:
A. Use damaged components if repairs are planned later
B. Follow manufacturer requirements and applicable safety regulations
C. Ignore load ratings when schedules are tight
D. Permit unauthorized modifications
B. Follow manufacturer requirements and applicable safety regulations
