Construction aggregate MCQs : Here you will find MCQ Questions related to "Construction aggregate" in Concrete Technology. These Construction aggregate MCQ Questions Will help you to improve your Concrete Technology knowledge and will prepare you for various Examinations like Competitive Exams, Placements, Interviews and other Entrance Exmaniations
Which of the following true about Construction aggregate?
A. Construction aggregate, or simply aggregate, is a broad category of coarse- to medium-grained particulate material used in construction
B. Aggregates are the most mined materials in the world
C. Aggregates are a component of composite materials such as concrete and asphalt concrete
D. All of the above
Explanation: All of the above statement true about Construction aggregate.
Aggregates are also used as base material under foundations, roads, and railroads.
C. Can be true or false
D. Can not say
Explanation: True, Aggregates are also used as base material under foundations, roads, and railroads.
Who publishes an exhaustive listing of specifications including ASTM D 692 and ASTM D 1073 for various construction aggregate products?
Explanation: The American Society for Testing and Materials publishes an exhaustive listing of specifications including ASTM D 692 and ASTM D 1073 for various construction aggregate products, which, by their individual design, are suitable for specific construction purposes..
Natural aggregates come in which category?
A. Based on size
B. Based on density
C. Based on shape
D. Based on origin
Explanation: The word natural itself says that it comes from nature which comes in origin. And there are 2 types of aggregates in based on origin i.e. natural and artificial aggregates.
How many types of aggregates based on geological origin?
Explanation: There are 2 types of aggregates based on geological origin. They are natural aggregates and artificial aggregates.
The unit weight of heavy weight concrete varies from __________ kg/m^3.
Explanation: The unit weight of heavy weight concrete varies from 2400 kg/m3 with sp.gr range from 4.0 to 4.6. (eg: mineral ore sand barite).
Bulking ___________ with increase in moisture
C. First decrease then increase
D. First increase then decrease
Explanation: Bulking increases with increase in moisture content upto a certain limit and beyond that the further increase in moisture content results in decrease in volume.
The largest-volume of recycled material used as construction aggregate is blast furnace and steel furnace slag.
C. Can be yes or no
D. Can not say
Explanation: Yes, The largest-volume of recycled material used as construction aggregate is blast furnace and steel furnace slag.
What is the size of fine aggregates?
B. < 4.75mm
C. > 4.75mm
Explanation: The size of the fine aggregates is less than 4.75mm because it passes from 4.75 mm sieve at its lowest so there is no chance for more than 4.75mm in its size.
What are artificial aggregates?
A. Those who obtained from river beds
B. Those who are manufactured naturally
C. Those who are mechanically obtained
D. Who has smooth surface
Explanation: Artificial aggregate are those obtained by mechanically crushing rocks, boulders, or cobbles. Normally angular in shape and have rough surface texture.