Answer:
Self-consolidating concrete does not need: Vibrating Given a proper gradation of satisfactory aggregates, the strength of cured concrete is primarily dependent on the amount of cement in the mix and on the water-cement (w-c or W/C) ratio. The higher the water-cement ratio the higher concrete strength. False
Answer: C) a&c
Explanation: Composite materials are the materials which are made up of the two or more material of different properties.They are usually having properties like high hardness,low in density,no dissolving into each other etc. Whiskers as a dispersing agent in composite materials are usually not preferred because they are expensive as well as they are not easy to disperse in the composite material.Thus option (c) is the correct answer.
Answer:
Explanation:
The detailed step by step calculation and appropriate formula is as shown in the attached file.
Answer:
mainly used to combine two tables based on a specified common field between them. If we talk in terms of Relational algebra, it is the cartesian product of two tables followed by the selection operation. Thus, we can execute the product and selection process on two tables using a single join statement. We can use either 'on' or 'using' clause in MySQL to apply predicates to the join queries.
A Join can be broadly divided into two types:
Inner Join
Outer Join
Inner Join is a join that can be used to return all the values that have matching values in both the tables. Inner Join can be depicted using the below diagram.
The inner join can be further divided into the following types:
Equi Join
Natural Join
Now let us learn about these inner joins one-by-one.
Answer:
<u>True</u>
Explanation:
According to Investopedia.com, "Disruptive technology is an innovation that significantly alters the way that consumers, industries, or businesses operate".
So yes, a disruptive does radically change the way people live and work.