The horizontal displacement of a point on the tower axis from its no-wind load position at that elevation.

The angular displacement of a tangent to the tower axis at the elevation from its no-wind load position at that elevation

The horizontal angular displacement of the tower from its no-wind position at that elevation

Refers to communication facilities installed below the surface of the earth.

Define as wires or cables entering the building, terminated to the main cross connecting point within the building from the nearest telephone facility.

A type of service entrance that serves as means of providing service aerially from a pole to a building.

The size of the aerial entrance conduit shall not be less than __________ in diameter.

The maximum span from telephone pole to a building used in aerial entrance should be ___________.

In aerial entrance, the minimum clearances between telephone cable and power entrance must be __________ radial distance.

In aerial entrance, the minimum clearance from ground level when crossing the street must be ___________.

In aerial entrance, minimum clearance over areas accessible to pedestrians only, must be __________.

A type of service entrance that provides mechanical protection and minimizes the need for possible subsequent repairs to the property.

An underground entrance’s minimum depth under areas used for vehicular traffic inside private property is

For underground entrance, conduits should be separated from power conduits by not less than __________ in well-tamped earth:

For underground entrance, conduits should be separated from power conduits by not less than __________ of concrete.

The size of underground entrance conduit within the building shall be no case smaller than __________ in diameter when the service entrance does not require use of a service box.

The use of handholes will be permitted for entrance cable not exceeding __________ pairs.

The minimum size for vehicular handholes is

The minimum size for non-vehicular handholes is

The use of service box will be permitted for entrance cable exceeding __________ pairs. The minimum size for service box is

The minimum size for service-box is

The minimum size for an entrance conduit is

The minimum number of entrance conduit is

It is a point where cable from TELCO and the in-building distribution system are terminated.

The location of the main terminal must be equipped with adequate lighting, and located at a minimum distance of __________ above floor finish.

The location of the main terminal should have enough working space in front of all terminations. Normally __________ away from all hazards.

A main terminal required for terminating entrance cables using one or more terminal blocks.

The backboard color for Main Telephone Terminal Cabinet (MTTC) used other special services is:

The backboard color for Main Telephone Terminal Cabinet (MTTC) used as an entrance is:

The backboard color for Main Telephone Terminal Cabinet (MTTC) used for risers is:

A main terminal generally recommended when entrance cable requirements will exceed 300 pairs.

Defined as the vertical and horizontal distribution of telephone communication lines between two or more floors or adjoining premises on the same floor of a building generally originating at or near the cabinet up to the Telephone Terminal or outlet.

A riser system usually extends from the ground to the roof top of the building with no floor separation to a ventilating shaft. Telephone cable is not permitted in unless placed in metallic conduit.

A riser system that consists of a series of telephone terminal cabinets/closets vertically or non-vertically aligned, usually beginning at the ground floor and extending throughout the height of the building.

An electrical discharge which occurs between clouds and also from cloud to earth.

Results from abnormally high sound level, the physical effects of which may vary from minor discomfort to serious injury.

The factor that determines the intensity of electrical shock is

The average resistance of a dry adult human body is approximately:

Ventricular fibrillation is likely to occur when a 60Hz rms current of _________ amperes and above passes through one’s chest cavity.

The minimum voltage value that is considered hazardous is:

The minimum voltage value that is considered hazardous is:

The potential difference at any time between two points on the floor or earth surface separated by a distance of one pace, or about one meter, in the direction of maximum potential gradient shall be no greater than __________.

It is the provision of a grounded electrical conducting material located such that foreign potential will be intercepted and surge currents diverted to ground with the least damage to plant equipment possible.

Prevents development of hazardous potential difference in communication plant by direct bonding, when permissible or by use of surge arresters, discharge gaps, diodes, etc. which operate under abnormal voltage condition.

The current in a circuit can be kept from rising above predetermined value by the use of a fuse in series with a circuit.

This is used to divert undesired currents before they reach the equipment being protected and often are installed both at and some distance away from the protected equipment.

It is the resistance path of a ground connection which includes the ground wire and its connection to ground electrode.

For equipment locations, antenna towers, and all allied installations, the ground resistance must never exceed __________.

For outside plant telephone poles and manholes as well as customer premises, the ground resistance must never exceed __________.