When specifying telecommunications outlet boxes, all of the following should be considered EXCEPT:

When specifying telecommunications outlet boxes, all of the following should be considered EXCEPT:
A . Outlet box shall be a minimum of 100 mm (4 in) x 100 mm (4 in) x 76 mm (3 in)
B . Outlet boxes should be installed near an electric outlet at the same height
C . Different outlet boxes have different support requirements
D . Floor mounted telecom outlet boxes should be coordinated with furniture to minimize the potential trip hazard
E . Outlet boxes must be of adequate size so that minimum cable bend radius requirements are not exceeded

Answer: A

How should you proceed with the placement of your cables?

You are required by architectural design to place UTP cables in the same space as unshielded power lines.

How should you proceed with the placement of your cables?
A . Require the architect/electrical engineer to place shielding in the space before your UTP is placed.
B . You should provide a minimum separation of 610 mm (24 in).
C . You should provide a minimum separation of 229 mm (9 in).
D . You should provide a minimum of two 101 mm (4 in) RM

Answer: B

Two sinusoidal signals have the same amplitude (A) and the same frequency (f). They differ in phase by 180 degrees.

Two sinusoidal signals have the same amplitude (A) and the same frequency (f). They differ in phase by 180 degrees.

If these two signals are added together, the result is a sinusoidal signal having an amplitude of:
A . Zero
B . 0.707A and a frequency of f
C . A and a frequency of 2f
D . 2A and a frequency of f
E . 2A and a frequency of 2f

Answer: A