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Practice Quiz in Wire and Wireless Communications System Part 7

(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 7 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 VII of the Online Practice Quiz

Quiz in TITLE

Question 61. The physical connection between the telephone set and the switching equipment is called the

A. Trunk line

B. Link

C. Subscriber loop

D. Leased line

Question 62. Cellular phones transmit in the band from

A. 825 to 845 MHz

B. 835 to 855 MHz

C. 825 to 855 MHz

D. 825 to 865 MHz

Question 63. TACS is a cellular system with ______ channels.

A. 666

B. 1000

C. 832

D. 200

Question 64. GSM uses what digital modulation technique?

A. QAM

B. GFSK

C. BPSK

D. GMSK

Question 65. A phone call over the cellular network actually requires

A. Simplex channels

B. Half duplex channels

C. Full duplex channels

D. Full/full duplex

Question 66. The AGC voltage of a radio receiver is always _______.

A. Present before adjustments can be made

B. DC, but may have either polarity positive DC

C. Positive DC

D. Negative

Question 67. Full-duplex transmission means

A. One-way transmission

B. 24-hour transmission

C. Broadcast transmission

D. Two-way simultaneous transmission

Question 68. What is the typical power output of a cellular phone?

A. 5 W

B. 10 W

C. 1 W

D. 3 W

Question 69. When line is terminated in an open circuit load, the reflection coefficient is

A. Unity

B. Zero

C. Positive infinity

D. Negative infinity

Question 70. Provides interface between the mobile telephone switching office and the mobile units.

A. Database

B. Cell site

C. Terrestrial link

D. Radio transmitter

List of Practice Quizzes

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