CMP 210 exam 2 EXAM PREP WITH
COMPLETE SOLUTION
What is the difference between modular and actual brick dimensions? - =Modular bricks are
those whose actual size plus a motor. JOint can be assembled on a 4 inch standard module.
What is the design module used when sizing concrete masonry units? - =8 inch module is used
to size the CMU.
What two factors are considered when establishing the weathering index? - =Number of freeze
cycle days and annual winter rainfall.
What the different ways concrete masonry units are cured? - =Low pressure kiln and high
pressure autoclave.
Why are the temperature and humidity carefully controlled when drying bricks? - =Any slight
variation in temperature and humidity will result in shrinkage and formation of cracks in bricks.
How can you identify solid masonry clay units? - =By the presence of core area which is less
than 25 percent of cross sectional area of the brick.
How does the tensile and flexural strength of CMUs compare with compressive strength? -
=Tensile and flexual strength depends on the compressive strength of concrete. Tensile
strength of concrete is about 5 to 15% of compressive strength. Flexural strength is about 15 to
20% of compressive strength.
How is the insulation value of CMUs improved? - =Porous and lightweight aggregates are used
to improve the insulation value of CMUs. Additional insulation materials are added to improve
its insulation value.
, What are the three major classifications of CMUs? - =Concrete brick, concrete block, special
units.
Describe three ways to span openings in masonry walls - =Steel lintel, arches,corbelling
What are the three required elements for a cavity wall? - =(Multiwythe), airspace, water,
corrosion resistant metal ties.
What is the purpose of flashings and weep holes in composite masonry construction? -
=Flashings- waterproof membranes that intercept water in the cavity.
Weepholes- are small openings that allows water to drain out of the cavity walls.
Identify by name and/or shape, the most common steel sections. - =wide flange- W
American standard- S
Channel- C
Angle- L
Standard Tee- ST
wide flange tee-WT
hollow structural- HSS
Describe the general features (shape, depth, weight) of a beam identified as 'W 24 x 94' 3. -
=W- Wide Flange Section
24- nominally 24" deep
94- weighs 94 Ibs/ lineal ft
What alloys are added to iron to create stainless steel? What are the benefits gained from
adding these alloys. - =Chromium- Increases hardness, corrosion and wear resistance
Nickel and mangnese- Increase strength and toughness and make material easier to fabricate
COMPLETE SOLUTION
What is the difference between modular and actual brick dimensions? - =Modular bricks are
those whose actual size plus a motor. JOint can be assembled on a 4 inch standard module.
What is the design module used when sizing concrete masonry units? - =8 inch module is used
to size the CMU.
What two factors are considered when establishing the weathering index? - =Number of freeze
cycle days and annual winter rainfall.
What the different ways concrete masonry units are cured? - =Low pressure kiln and high
pressure autoclave.
Why are the temperature and humidity carefully controlled when drying bricks? - =Any slight
variation in temperature and humidity will result in shrinkage and formation of cracks in bricks.
How can you identify solid masonry clay units? - =By the presence of core area which is less
than 25 percent of cross sectional area of the brick.
How does the tensile and flexural strength of CMUs compare with compressive strength? -
=Tensile and flexual strength depends on the compressive strength of concrete. Tensile
strength of concrete is about 5 to 15% of compressive strength. Flexural strength is about 15 to
20% of compressive strength.
How is the insulation value of CMUs improved? - =Porous and lightweight aggregates are used
to improve the insulation value of CMUs. Additional insulation materials are added to improve
its insulation value.
, What are the three major classifications of CMUs? - =Concrete brick, concrete block, special
units.
Describe three ways to span openings in masonry walls - =Steel lintel, arches,corbelling
What are the three required elements for a cavity wall? - =(Multiwythe), airspace, water,
corrosion resistant metal ties.
What is the purpose of flashings and weep holes in composite masonry construction? -
=Flashings- waterproof membranes that intercept water in the cavity.
Weepholes- are small openings that allows water to drain out of the cavity walls.
Identify by name and/or shape, the most common steel sections. - =wide flange- W
American standard- S
Channel- C
Angle- L
Standard Tee- ST
wide flange tee-WT
hollow structural- HSS
Describe the general features (shape, depth, weight) of a beam identified as 'W 24 x 94' 3. -
=W- Wide Flange Section
24- nominally 24" deep
94- weighs 94 Ibs/ lineal ft
What alloys are added to iron to create stainless steel? What are the benefits gained from
adding these alloys. - =Chromium- Increases hardness, corrosion and wear resistance
Nickel and mangnese- Increase strength and toughness and make material easier to fabricate
