# Practice Quiz in Wire and Wireless Communications System Part 32

Online Practice Quiz in Wire and Wireless Communications System part 32 as one of the Communications Engineering topic.

This is the Online Practice Quiz in Wire and Wireless Communications System Part 32 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 XXXII of the Online Practice Quiz

#### Quiz in Wire and Wireless Communications System

Question 311. What modulation technique is used by Advanced Mobile Phone System (AMPS)

A. WBFM

B. VSB

C. NBFM

D. FSK

Question 312. Determine the total number of channel capacity of a cellular telephone area comprised of 10 clusters with seven cells in each cluster and 10 channels in each cell.

A. 7 channels

B. 70 channels

C. 700 channels

D. 7000 channels

Question 313. Class of switching office which is the local exchange where the subscriber loops terminated and received dial tone.

A. Class 5

B. Class 4C

C. Class 3

D. Class 1

Question 314. The modulation technique used by GSM cellular system.

A. QAM

B. Phase Shift Keying

C. Gaussian Minimum Shift Keying

D. Frequency Shift Keying

Question 315. The bit length of Station Class Mark (SCM).

A. 4

B. 5

C. 8

D. 10

Question 316. In a 4-wire telephone set connection, (used to connect telephone set to central office switching) the green coded wire is used _______________.

A. as ground wire

B. to transmit the signal

C. to receive the signal from the far end

D. as a spare or for special purpose applications

Question 317. A province in the Philippines has an area 2000 sq. kms. It has to be covered by a cellular mobile telephone service using cells with a radius of 3 kms. Assuming hexagonal cells, find the number of cell sites needed.

A. 100

B. 500

C. 166

D. 145

Question 318. A special type of line conditioning that sets the minimum requirements for signal-to-noise ratio a nonlinear distortion.

A. A-type line conditioning

B. B-type line conditioning

C. C-type line conditioning

D. D-type line conditioning

Question 319. The transfer of a mobile unit from one base station's control to another base station's control.

A. handoff

B. paging

C. roaming

D. dualization

Question 320. It is simply an unshielded twisted pair transmission line consisting of two insulated conductors twisted together.

A. local loop

B. local line

C. subscriber loop

D. Any of these

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