Answer: An engineer or a craftsperson
Explanation:
Welding symbols allow the engineer or draftsperson to communicate detailed information about the weld to the welder. In most cases, the welding symbol has an arrow, which points to the location on the drawing where a weld is required. The arrow is attached to a leader line that intersects with a horizontal reference line. The arrow and leader line point to the joint in question, while the weld symbol tells the welder what type of weld to do. If the weld symbol is below the reference line, the weld should be made on the same side as the arrow.
Answer:
<em>The</em><em> </em><em>answer</em><em> </em><em>is</em><em> </em><em>safety</em><em> </em><em>documents</em><em> </em>
Explanation:
Every company is responsible
For people documents
Is very important for every company
Answer:
Volume is not the fundamental dimension. So, option d is correct.
Explanation:
Step1
Fundamental dimension is the dimension in which other quantities depend. These are the basic dimensions. Three basic fundaments dimensions are mass, length and time that is represented as MLT respectively.
Step2
Volume is not the fundamental dimension among them as the volume is cube of length dimension. Thus, volume depends upon length.
Thus, Volume is not the fundamental dimension. So, option d is correct.
Hello,
What is the ID Zoom for?
Like what in particular???
Answer:
(b)False
Explanation:
Given:
Prandtl number(Pr) =1000.
We know that 
Where 
is the molecular diffusivity of momentum
is the molecular diffusivity of heat.
Prandtl number(Pr) can also be defined as
Where 
is the hydrodynamic boundary layer thickness and 
is the thermal boundary layer thickness.
So if Pr>1 then hydrodynamic boundary layer thickness will be greater than thermal boundary layer thickness.
In given question Pr>1 so hydrodynamic boundary layer thickness will be greater than thermal boundary layer thickness.
So hydrodynamic layer will be thicker than the thermal boundary layer.
