CM 2113 WANG TEST 2 COMPLETE
ULTIMATE BANK 200 A GRADED
PRACTICE QUESTIONS CONSTRUCTION
MATERIALS AND METHODS CONCRETE
STEEL MASONRY SAFETY AND OSHA LSU
AND NATIONAL CURRICULUM ALIGNED
1. A project manager is reviewing concrete mix designs for a foundation
slab that will be exposed to freeze-thaw cycles and deicing chemicals.
Which admixture is MOST critical to include in the mix design to
improve durability under these conditions?
A) Water-reducing admixture
B) Air-entraining admixture
C) Accelerating admixture
D) Retarding admixture
CORRECT ABSWER : B) Air-entraining admixture
Rationale: Air-entraining admixtures create microscopic air bubbles
in concrete that provide expansion space for freezing water, significantly
improving resistance to freeze-thaw damage and deicing chemical attack.
Water reducers improve workability/strength but don't address freeze-
thaw. Accelerators speed set time; retarders slow it—neither improves
durability in this exposure condition.
2. During a site inspection, a superintendent observes that the formwork
for a concrete wall is bulging outward at the mid-height. What is the
MOST likely cause of this defect?
A) Insufficient concrete slump
B) Inadequate lateral support or tie spacing on formwork
C) Over-vibration of concrete during placement
,D) Premature form removal
CORRECT ABSWER : B) Inadequate lateral support or tie spacing on
formwork
Rationale: Formwork bulging occurs when lateral pressure from fresh
concrete exceeds the form's capacity to resist it. This is typically caused
by ties spaced too far apart, insufficient wales/bracing, or inadequate
form stiffness. Low slump makes concrete harder to place but doesn't
cause bulging. Over-vibration causes segregation, not bulging.
Premature removal causes collapse, not mid-height bulging.
3. A contractor is selecting structural steel members for a warehouse roof
system. Which steel shape is MOST appropriate for a long-span primary
roof beam carrying heavy loads?
A) L-shape (angle)
B) C-shape (channel)
C) W-shape (wide-flange)
D) HSS (hollow structural section)
CORRECT ABSWER : C) W-shape (wide-flange)
Rationale: W-shapes (wide-flange beams) provide high moment of
inertia and section modulus about the strong axis, making them ideal for
long-span beams carrying heavy gravity loads. Angles and channels are
typically used for bracing, lintels, or light framing. HSS sections are
excellent for columns or torsion-resistant members but less efficient
than W-shapes for simple bending in long-span beams.
4. A project requires excavation in cohesive soil (clay) to a depth of 12
feet. OSHA regulations require protective systems for excavations deeper
than 5 feet unless in stable rock. Which protective system is MOST
appropriate for this soil type and depth?
A) Sloping at 1:1 (45°) angle
B) Benching with vertical cuts
C) Trench boxes or shoring
D) No protection needed if work is completed in one day
CORRECT ABSWER : C) Trench boxes or shoring
,Rationale: Type A cohesive soils (clay) allow vertical cuts up to 5 feet,
but at 12 feet depth, OSHA requires engineered protective systems.
Trench boxes (shielding) or shoring (hydraulic/pneumatic) are
appropriate for deep excavations in cohesive soils. Sloping at 1:1 may be
acceptable for Type B/C soils but requires significant right-of-way.
Benching has specific configuration requirements. Time of exposure
does not eliminate protection requirements.
5. A carpenter is installing wood floor joists spaced 16 inches on center.
The architect's specifications call for "2x10 SPF #2." What does "SPF"
indicate in this lumber designation?
A) Southern Pine Forest
B) Spruce-Pine-Fir species group
C) Structural Performance Factor
D) Standard Pressure Treatment
CORRECT ABSWER : B) Spruce-Pine-Fir species group
Rationale: SPF is the standard abbreviation for the Spruce-Pine-Fir
species group, a common softwood combination used for framing
lumber in North America. The "#2" indicates the grade (structural
quality). Southern Pine is a separate species designation. SPF is not an
acronym for performance factor or pressure treatment.
6. A mason is laying concrete masonry units (CMU) for a load-bearing
wall. Which mortar type is specified for below-grade foundations subject
to high compressive loads and moderate lateral soil pressure?
A) Type N
B) Type S
C) Type O
D) Type K
CORRECT ABSWER : B) Type S
Rationale: Type S mortar (1,800 psi compressive strength) is specified
for below-grade applications, foundations, retaining walls, and other
high-compression/high-lateral load conditions. Type N (750 psi) is for
general above-grade exterior walls. Type O (350 psi) and Type K (75 psi)
are for interior, non-load-bearing applications only.
, 7. A project specifications require roofing asphalt to meet ASTM D312
Type III. What does this designation primarily indicate?
A) Color and aesthetic properties
B) Softening point and viscosity characteristics for specific
climate/application
C) Fire resistance rating
D) Recycled content percentage
CORRECT ABSWER : B) Softening point and viscosity characteristics for
specific climate/application
Rationale: ASTM D312 classifies roofing asphalts by softening point
(Type I-IV), which determines viscosity and application temperature for
different climates and roof slopes. Type III is a medium-grade asphalt
suitable for moderate slopes and climates. The standard does not
address color, fire rating, or recycled content.
8. During concrete placement for a slab-on-grade, the crew uses a
vibrating screed. What is the PRIMARY purpose of this equipment?
A) To compact the subgrade soil
B) To consolidate concrete, remove air voids, and achieve proper
elevation/finish
C) To apply curing compound immediately after placement
D) To cut control joints in the fresh concrete
CORRECT ABSWER : B) To consolidate concrete, remove air voids, and
achieve proper elevation/finish
Rationale: Vibrating screeds consolidate fresh concrete by removing
entrapped air, ensuring proper density and strength, while
simultaneously striking off the surface to the correct elevation. Subgrade
compaction occurs before concrete placement. Curing and joint cutting
are subsequent operations performed after screeding and finishing.
9. A structural engineer specifies "A992 steel" for building columns.
What key property distinguishes A992 from older A36 steel?
A) Lower cost
B) Higher yield strength (50 ksi vs. 36 ksi) and better weldability
ULTIMATE BANK 200 A GRADED
PRACTICE QUESTIONS CONSTRUCTION
MATERIALS AND METHODS CONCRETE
STEEL MASONRY SAFETY AND OSHA LSU
AND NATIONAL CURRICULUM ALIGNED
1. A project manager is reviewing concrete mix designs for a foundation
slab that will be exposed to freeze-thaw cycles and deicing chemicals.
Which admixture is MOST critical to include in the mix design to
improve durability under these conditions?
A) Water-reducing admixture
B) Air-entraining admixture
C) Accelerating admixture
D) Retarding admixture
CORRECT ABSWER : B) Air-entraining admixture
Rationale: Air-entraining admixtures create microscopic air bubbles
in concrete that provide expansion space for freezing water, significantly
improving resistance to freeze-thaw damage and deicing chemical attack.
Water reducers improve workability/strength but don't address freeze-
thaw. Accelerators speed set time; retarders slow it—neither improves
durability in this exposure condition.
2. During a site inspection, a superintendent observes that the formwork
for a concrete wall is bulging outward at the mid-height. What is the
MOST likely cause of this defect?
A) Insufficient concrete slump
B) Inadequate lateral support or tie spacing on formwork
C) Over-vibration of concrete during placement
,D) Premature form removal
CORRECT ABSWER : B) Inadequate lateral support or tie spacing on
formwork
Rationale: Formwork bulging occurs when lateral pressure from fresh
concrete exceeds the form's capacity to resist it. This is typically caused
by ties spaced too far apart, insufficient wales/bracing, or inadequate
form stiffness. Low slump makes concrete harder to place but doesn't
cause bulging. Over-vibration causes segregation, not bulging.
Premature removal causes collapse, not mid-height bulging.
3. A contractor is selecting structural steel members for a warehouse roof
system. Which steel shape is MOST appropriate for a long-span primary
roof beam carrying heavy loads?
A) L-shape (angle)
B) C-shape (channel)
C) W-shape (wide-flange)
D) HSS (hollow structural section)
CORRECT ABSWER : C) W-shape (wide-flange)
Rationale: W-shapes (wide-flange beams) provide high moment of
inertia and section modulus about the strong axis, making them ideal for
long-span beams carrying heavy gravity loads. Angles and channels are
typically used for bracing, lintels, or light framing. HSS sections are
excellent for columns or torsion-resistant members but less efficient
than W-shapes for simple bending in long-span beams.
4. A project requires excavation in cohesive soil (clay) to a depth of 12
feet. OSHA regulations require protective systems for excavations deeper
than 5 feet unless in stable rock. Which protective system is MOST
appropriate for this soil type and depth?
A) Sloping at 1:1 (45°) angle
B) Benching with vertical cuts
C) Trench boxes or shoring
D) No protection needed if work is completed in one day
CORRECT ABSWER : C) Trench boxes or shoring
,Rationale: Type A cohesive soils (clay) allow vertical cuts up to 5 feet,
but at 12 feet depth, OSHA requires engineered protective systems.
Trench boxes (shielding) or shoring (hydraulic/pneumatic) are
appropriate for deep excavations in cohesive soils. Sloping at 1:1 may be
acceptable for Type B/C soils but requires significant right-of-way.
Benching has specific configuration requirements. Time of exposure
does not eliminate protection requirements.
5. A carpenter is installing wood floor joists spaced 16 inches on center.
The architect's specifications call for "2x10 SPF #2." What does "SPF"
indicate in this lumber designation?
A) Southern Pine Forest
B) Spruce-Pine-Fir species group
C) Structural Performance Factor
D) Standard Pressure Treatment
CORRECT ABSWER : B) Spruce-Pine-Fir species group
Rationale: SPF is the standard abbreviation for the Spruce-Pine-Fir
species group, a common softwood combination used for framing
lumber in North America. The "#2" indicates the grade (structural
quality). Southern Pine is a separate species designation. SPF is not an
acronym for performance factor or pressure treatment.
6. A mason is laying concrete masonry units (CMU) for a load-bearing
wall. Which mortar type is specified for below-grade foundations subject
to high compressive loads and moderate lateral soil pressure?
A) Type N
B) Type S
C) Type O
D) Type K
CORRECT ABSWER : B) Type S
Rationale: Type S mortar (1,800 psi compressive strength) is specified
for below-grade applications, foundations, retaining walls, and other
high-compression/high-lateral load conditions. Type N (750 psi) is for
general above-grade exterior walls. Type O (350 psi) and Type K (75 psi)
are for interior, non-load-bearing applications only.
, 7. A project specifications require roofing asphalt to meet ASTM D312
Type III. What does this designation primarily indicate?
A) Color and aesthetic properties
B) Softening point and viscosity characteristics for specific
climate/application
C) Fire resistance rating
D) Recycled content percentage
CORRECT ABSWER : B) Softening point and viscosity characteristics for
specific climate/application
Rationale: ASTM D312 classifies roofing asphalts by softening point
(Type I-IV), which determines viscosity and application temperature for
different climates and roof slopes. Type III is a medium-grade asphalt
suitable for moderate slopes and climates. The standard does not
address color, fire rating, or recycled content.
8. During concrete placement for a slab-on-grade, the crew uses a
vibrating screed. What is the PRIMARY purpose of this equipment?
A) To compact the subgrade soil
B) To consolidate concrete, remove air voids, and achieve proper
elevation/finish
C) To apply curing compound immediately after placement
D) To cut control joints in the fresh concrete
CORRECT ABSWER : B) To consolidate concrete, remove air voids, and
achieve proper elevation/finish
Rationale: Vibrating screeds consolidate fresh concrete by removing
entrapped air, ensuring proper density and strength, while
simultaneously striking off the surface to the correct elevation. Subgrade
compaction occurs before concrete placement. Curing and joint cutting
are subsequent operations performed after screeding and finishing.
9. A structural engineer specifies "A992 steel" for building columns.
What key property distinguishes A992 from older A36 steel?
A) Lower cost
B) Higher yield strength (50 ksi vs. 36 ksi) and better weldability
