Practice Quiz in Wire and Wireless Communications System Part 5

This is the Online Practice Quiz in Wire and Wireless Communications System Part 5 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 V of the Online Practice Quiz

Quiz in Wire and Wireless Communications System Question 41. Which tester is used to measure SWR? A. Multimeter B. Oscilloscope C. Spectrum analyzer D. Reflectometer Question 42. AWG # 26 has a typical loss of A. 0.21 dB/1000 ft. B. 0.32 dB/1000 ft. C. 0.41 dB/1000 ft. D. 0.51 dB/1000 ft. Question 43. Which of the following responds to the request of a subscriber by sending a dial tone? A. Line finder B. First selector C. Connector D. Line equipment Question 44. The first cell shape is a square A. Square B. Circle C. Rectangle D. Triangle Question 45. The telephone voice band frequency is from A. 300 to 4 kHz B. 400 to 3400 Hz C. 300 to 3400 Hz D. 400 to 4 kHz Question 46. Which of the ff. equipment is used in long loop design? A. Dial long lines B. Voice repeater C. Loop range extender D. All of these Question 47. What is the most commonly used light sensor in a modern fax machine? A. Phototube B. Phototransistor C. Liquid-crystal display D. Charge couple device Question 48. A device used to measure speech volume. A. speech meter B. volume meter C. volume unit meter D. speedometer Question 49. A digital identification associated with a cellular system. A. SAT B. SID C. ESN D. MIN Question 50. What is the frequency deviation of the cellular telephone system? A. ±15 kHz B. ±30 kHz C. ±12 kHz D. ±75 kHz

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