This is the Online Practice Quiz in Wire and Wireless Communications System Part 54 as one of the Communications Engineering topic. In Preparation for the ECE Board Exam make sure to expose yourself and familiarize in each and every questions compiled here taken from various sources including but not limited to past Board Examination Questions in Electronic System and Technologies, Communications Books, Journals and other Communications References.
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Quiz in Wire and Wireless Communications System
Question 531. Telephone switching is accomplished by
Question 532. In a facsimile recorder what is used to make 1,500-Hz ac stronger than 2300 Hz?Question 533. What tone is used to stop fax?Question 534. The signal heard on the telephone line which indicates that the called subscriber set is in use.Question 535. A telephone number perform the following operations except Question 536. What is the standard scanning LPI rates?Question 537. It is defined as the optimum level of a test tone on a channel at some point in a communications system. Question 538. What type of control system crossbar switches are operating?Question 539. A line linking telephone central offices is called _____________ line.Question 540. The standard spacing for 19-D-88 cable loading code is
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Practice Quiz in Wire and Wireless Communications System Part 54