OSHA inspections are generally unannounced. In fact, except in four exceptional circumstances when advance notice may be given.
It is a criminal offense for any person to give unauthorized advance notice of an OSHA inspection.
To resolve this problem we have,

is unknown.
With these dates we can calculate the Flexural strenght of the specimen,

After that, we can calculate the flexural strenght for the square cross section using the previously value.

Answer:
The time taken will be "1 hour 51 min". The further explanation is given below.
Explanation:
The given values are:
Number of required layers:
= 
= 
Diameter (d):
= 1.25 mm
Velocity (v):
= 40 mm/s
Now,
The area of one layer will be:
= 
= 
The area covered every \second will be:
= 
= 
= 
The time required to deposit one layer will be:
= 
= 
The time required for one layer will be:
= 
∴ Total times required for one layer will be:
= 
= 
So,
Number of layers = 152
Therefore,
Total time will be:
= 
= 
= 
Answer:
you might be facing some difficulty in observing this point of division between your question and me