MCQ in Microwave Communications Part 5 – Answers

Below are the answers key for the Multiple Choice Questions in Microwave Communications Part 5.

201. heterodyne receiver

202. system gain

203. Doppler effect

204. a nonconductor with magnetic properties

205. reduce the axial velocity of the RF field

206. prevent oscillations

207. oscillator

208. traveling-wave tube

209. PCBs

210. Cathode-ray tube

211. circuit simplicity

212. 53 degrees

213. 10

214. baseband repeater

215. ridged

216. more accurate tracking enemy targets

217. diversity

218. vary the RF

219. LOS

220. help in subtracting a complete scan from the previous scan

221. frequency diversity

222. intermediate frequency

223. Tunnel

224. gain increases

225. 10.5 dB

226. space diversity

227. moving-target plotting on the PPI

228. polarization diversity

229. the target range, but not position

230. provide attenuation

231. hybrid diversity

232. it does not give the target range

233. quad diversity

234. monopulse

235. is not good low-level amplifier because of noise

236.  protection switching arrangement

237. flap attenuator

238. conical

239. to allow the one antenna to be used for reception or transmission without mutual interference

240. hot standby

241. the target will appear closer than it really is

242. terminal stations

243. cavity resonator

244. increase

245. pulse width

246. magnetron

247. increase the maximum range

248. isolator

249. make the returned echoes easier to distinguish from the noise

250. ringaround

Questions and Answers in Microwave Communications and Principles Series

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

Complete List of MCQ in Communications Engineering per topic

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