Geometric similitude is best described as Select one the sca

Geometric similitude is best described as Select one: the scaling of an object by a uniform factor that increases or decreases its dimensions the investigation of general object shapes to determine their similarity (like flat planes, curved surfaces etc) All answers are valid none of the supplied answers are valid The Reynolds Number is a dimensionless number with components that contribute to Select one: flow characteristics like turbulence important heat transfer capability formation of eddies in the fluid flow each of these answers is valid none of these answers are valid The dimensionless number.

Solution

Answer of question no. 1 is first option.

Because when two objects are similar in shape or mirror image of one is similar to other then they are known to be geometrically symmetrical. Even one of them can be obtained by uniform scaling of other.

Answer of question no. 2 is first option.

It is one of the most important dimensionless number used in fluid mechanics. It is mainly used to indicate whether a fluid flow is steady state or in turbulence when it is passing through a body.