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Practice Quiz in Wire and Wireless Communications System Part 4

(Last Updated On: December 21, 2017)Quiz in Wire and Wireless Communications System

This is the Online Practice Quiz in Wire and Wireless Communications System Part 4 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.

Continue Part IV of the Online Practice Quiz

Quiz in Wire and Wireless Communications System

Question 31. _______ is signal returned to the talker after one or more round trips between the talker and the listener.

A. Singing

B. Echo

C. Jitter

D. Crosstalk

Question 32. How many seconds does facsimile transmit a stranded page?

A. 5

B. 10

C. 20

D. 25

Question 33. What is the local loop of a telephone system?

A. It is a two-wire or four-wire communication circuit between the customer’s premise and the central office

B. It is a group of wires connecting a telephone set to a modern

C. It is a four-wire circuit connecting a facsimile machine to a computer

D. It is a single piece of wire connecting the subscriber’s telephone set to another set in an adjacent room.

Question 34. The maximum intelligibility for voice frequency is located between

A. 250 and 500 Hz

B. 1000 and 3000 Hz

C. 500 and 1000 Hz

D. 3000 and 5000 Hz

Question 35. What is the standard voice channel spacing?

A. 44 MHz

B. 40 kHz

C. 4 kHz

D. 40 MHz

Question 36. It is an advantage of sidetone.

A. Transmission efficiency is increased

B. Speaker increase his voice resulting in a strengthened signal

C. No dissipation of energy in the balancing network

D. Assures the customer that the telephone is working

Question 37. What is the power output of Personal Communication System (PCS)?

A. 10 mW

B. 75 mW

C. 150 mW

D. 10 W

Question 38. The transmission of information from multiple sources occurring on the same facility but not as the same time.

A. FDM

B. TDM

C. WDM

D. CDM

Question 39. Supervisory Audio Tone (SAT) has _______ frequency.

A. 5960 Hz

B. 6000 Hz

C. 6040 Hz

D. 1004 Hz

Question 40. Which of the following wire is used to transmit the signal?

A. Black

B. Yellow

C. Red

D. Green

List of Practice Quizzes

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