Carp. Chp. 29-31 Test Questions And
Answers.
Style of foundation used to reduce building costs - Answer slab-on-grade
CMU stands for.... - Answer Concrete Masonry Unit
A type of foundation typically installed in one day - Answer Precast Concrete
ICF stands for.... - Answer Insulated Concrete Forms
Type of foundation installed in warmer climates - Answer Slab-on-grade
A rigid foam forming system for concrete - Answer ICF
A footing must be on soil that is - Answer stable throughout the year, at or below the frost
line, and able to support the building
The ingredients for making concrete are....(3) - Answer Water, Portland Cement, and
Aggregates
A chemical reaction that causes cement to harden - Answer Hydration
Concrete can continue to harden for how long - Answer Years
A bag of Portland Cement contains 1 cubic foot and weighs how many pounds - Answer 94
Type IA is an air-entraining cement used to - Answer Improve resistance to freezing and
thawing
The quality of concrete is greatly affected by -- - Answer The water to cement ratios
Aggregates serve as a -- in concrete - Answer Filler
A cubic yard is = to how many cubic feet - Answer 27
, Concrete must be delivered within -- after water has been added to the mix - Answer 1.5
hours
Steel bars are added to concrete to increase its - Answer Tensile Strength
The water-cement ratio should be - Answer Kept as small as possible
Generally speaking, PSI strength of concrete increases as - Answer
A #6 rebar has a diameter of -- inches - Answer 3/4 or 6/8
Welded wire mesh is identified by the gauge and spacing of the -- - Answer Wire
To ease their removal, the inside surfaces of forms are brushed with -- - Answer oil
Concrete without admixtures having a slump of greater than -- inches should not be used -
Answer 6
Vibrating or hand-spading is done to eliminate voids or -- in the concrete - Answer
Honeycombs
Excessive vibration causes concrete to become more liquid, causing more -- on forms - Answer
Lateral Pressure
Flooding or constant sprinkling of the surface with water after the concrete has set is the most
effective method of -- concrete - Answer Curing
Permanent damage is almost certain if the concrete becomes -- within the first 24 hours of
being placed - Answer Frozen
In cold weather, -- are sometimes added to the concrete to shorten the setting time - Answer
Accelerators
Concrete should be protected from freezing for at least -- days - Answer 4
Answers.
Style of foundation used to reduce building costs - Answer slab-on-grade
CMU stands for.... - Answer Concrete Masonry Unit
A type of foundation typically installed in one day - Answer Precast Concrete
ICF stands for.... - Answer Insulated Concrete Forms
Type of foundation installed in warmer climates - Answer Slab-on-grade
A rigid foam forming system for concrete - Answer ICF
A footing must be on soil that is - Answer stable throughout the year, at or below the frost
line, and able to support the building
The ingredients for making concrete are....(3) - Answer Water, Portland Cement, and
Aggregates
A chemical reaction that causes cement to harden - Answer Hydration
Concrete can continue to harden for how long - Answer Years
A bag of Portland Cement contains 1 cubic foot and weighs how many pounds - Answer 94
Type IA is an air-entraining cement used to - Answer Improve resistance to freezing and
thawing
The quality of concrete is greatly affected by -- - Answer The water to cement ratios
Aggregates serve as a -- in concrete - Answer Filler
A cubic yard is = to how many cubic feet - Answer 27
, Concrete must be delivered within -- after water has been added to the mix - Answer 1.5
hours
Steel bars are added to concrete to increase its - Answer Tensile Strength
The water-cement ratio should be - Answer Kept as small as possible
Generally speaking, PSI strength of concrete increases as - Answer
A #6 rebar has a diameter of -- inches - Answer 3/4 or 6/8
Welded wire mesh is identified by the gauge and spacing of the -- - Answer Wire
To ease their removal, the inside surfaces of forms are brushed with -- - Answer oil
Concrete without admixtures having a slump of greater than -- inches should not be used -
Answer 6
Vibrating or hand-spading is done to eliminate voids or -- in the concrete - Answer
Honeycombs
Excessive vibration causes concrete to become more liquid, causing more -- on forms - Answer
Lateral Pressure
Flooding or constant sprinkling of the surface with water after the concrete has set is the most
effective method of -- concrete - Answer Curing
Permanent damage is almost certain if the concrete becomes -- within the first 24 hours of
being placed - Answer Frozen
In cold weather, -- are sometimes added to the concrete to shorten the setting time - Answer
Accelerators
Concrete should be protected from freezing for at least -- days - Answer 4
