standard telephone lines

Telephone Lines - The transmission lines used in telephony are of two kinds: open- wire and cable. The open-wire lines are gradually being superseded by cable construction, either overhead or underground, for two principal reasons. In the first place, many mo..

The smallest conductor used in standard open-wire telephone circuits is No. 12B and S. gauge. A line of such construction will have a loss of approximately 0.06 db per mile. Cable circuits, on the other hand, make use of conductors not larger than No. 19, and a typical..

Telephone Circuits - Two-way operation is essential for satisfactory telephone service, and many of the problems of the industry arise from this fact. A simplified circuit for obtaining two-way operation is shown in the below figure. This is called a local-battery system because..

A telephone company recorded the number of telephone enquiries made on each day in a week as represented in the line plot. Find the total number of telephone enquiries made in that week. => 35 or 30 or 29 or 31..

The chance that any one telephone line is busy at a given moment of time is 0.01. What is the chance that out of 5 telephone lines, less than 3 lines are busy? => 0.048 or .001 or 1 or 0.951..

What is the standard form of the equation of the line? => x = - 3 or y = 3 or x = 3 or y = - 3..

What is the standard form of the equation of the line in the graph? => x = 2 or y = 2 or x = -2 or y = -2..

Which is an equation of the line in standard form? => - x + y = - 3 or - x - y = - 3 or - x - y = 3 or - x + y = 3..

Express the equation of the line in the standard form. => - x - y = - 3 or - x - y = 3 or - x + y = - 3 or - x + y = 3..

Which of the following represents the standard form of the equation of a line? => y = mx + b or y - y 1 = m ( x - x 1 ) or A x + B y = C or ( y - y 1 ) = y 2 - y 1 y 2 - y 1 ( x - x 1 )..