MCQ in Wire and Wireless Communications System Part 4 – Answers

Below are the answers key for the Multiple Choice Questions in Wire and Wireless Communications System Part 4.

151. Bell

152. A flow of loop current

153. 5

154. Tandem

155. All of the above

156. 0 to 4000 Hz

157. Multiplexing

158. Uses a separate channel for signaling only

159. Any of the above

160. All of the above

161.Digital transmission

162. Carbon

163. Varistor

164. Electromagnetic

165. Induction coil

166. 7

167. All of the above

168. Prevents dial pulsing from ringing the bell

169. All of the above

170. Line relays in the central office will not mistake it for off-hook current

171. Needed because of transients from dial pulsing, lightning, induction or short circuit

172. the voltage drop across conventional bridges leaves too little voltage to operate the set

173. B and C above

174. Allow automatic redialing of the last number dialed

175. Protect the set against polarity reversals on the line

176. A high voltage transient is generated

177. 10 pulses per second

178. 16

179. Smaller size

180. All of the above

181. Digital multiplier circuit

182. Visual display

183. Zener diodes

184. Half-duplex mode

185. Pulse amplitude modulation

186. Linear

187. Higher level systems

188. Dedicated

189. Mostly for data transmission

190. The presence of spurious frequencies caused by having too high frequencies in the sampled signal

191. Synchronous

192. Bipolar

193. The telephone network will not pass direct current

194. Asynchronous transmission

195. At both ends

196. All of the above

197. Phase distortion

198. All of the above

199. Reduce costs

200. 7

Questions and Answers in Wire and Wireless Communications System Series

Following is the list of multiple choice questions in this brand new series:

Complete List of MCQ in Communications Engineering per topic

Related Content

MCQ in Communications Engineering Series | ECE Board Exam

DaysHoursMinSecThis offer has expired! SubscribePREMIUM PROMO: Remove Ads!! Get Freebies!!! and Get EXTRA MONTHS before Time EXPIRED! 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 past Board Questions in Communications Engineering field (Electronics Systems and Technologies). In the actual board, you have to answer 100 items in Electronic Systems and Technologies within 5 hours. You have to get at least 70% to pass the subject. Electronic Systems and Technologies is 30% of the total 100% Board Rating along with Mathematics (20%), General

MCQ in Professional Education Practice Drills Part 7 | Licensure Exam for Teachers

DaysHoursMinSecThis offer has expired! SubscribePREMIUM PROMO: Remove Ads!! Get Freebies!!! and Get EXTRA MONTHS before Time EXPIRED! This is the ProfEd Practice Drills, Multiple Choice Questions in Professional Education part 7 as one coverage of Licensure Examinations for Teachers (LET). The exam is divided into two classifications. First is the elementary level exam which covers topics from General Education (GenEd) 40% and Professional Education (ProfEd) 60%. Secondly is the secondary level which covers GenEd 20%, ProfEd 40%, and area of specialization 40%. I assume you are looking for a reviewer that will help you achieve your goal to become a

MCQ in Professional Education Part 3 | Licensure Exam for Teachers

DaysHoursMinSecThis offer has expired! SubscribePREMIUM PROMO: Remove Ads!! Get Freebies!!! and Get EXTRA MONTHS before Time EXPIRED! These is the Multiple Choice Questions in Professional Education Part 3 as one coverage of Licensure Examinations for Teachers (LET). The exam is divided into two classifications. First is the elementary level exam which covers topics from General Education (GenEd) 40% and Professional Education (ProfEd) 60%. Secondly is the secondary level which covers GenEd 20%, ProfEd 40%, and area of specialization 40%. I assume you are looking for a reviewer that will help you achieve your goal to become a professional License teacher

MCQ in Professional Education Part 4 | Licensure Exam for Teachers Review

DaysHoursMinSecThis offer has expired! SubscribePREMIUM PROMO: Remove Ads!! Get Freebies!!! and Get EXTRA MONTHS before Time EXPIRED! This is the LET Reviewer 2022, Multiple Choice Questions in Professional Education part 4, as one Licensure Examinations for Teachers (LET) coverage. The exam is divided into two classifications. First is the elementary level exam, which covers topics from General Education (GenEd) 40% and Professional Education (ProfEd) 60%. Secondly is the secondary level, which covers GenEd 20%, ProfEd 40% and area of specialization 40%. I assume you are looking for a reviewer that will help you achieve your goal of becoming a professional