Below are the answers key for the Multiple Choice Questions in Antennas Part 6.

251. antenna

252. array

253. aperture

254. 73-ohm

255. waveguide

256. 6.81 degrees

257. 50 degrees

258. Radio waves

259. 1.6 ft

260. Cassegrain feed

261. wavefront

262. 0.348 degrees

263. figure of eight

264. frequency

265. Dipole

266. 52.2 dB

267. Radiation efficiency

268. Primary antenna

269. Radiation pattern

270. 12.55 dB

271. absolute radiation pattern

272. 150 ohms

273. relative radiation pattern

274. 136 m

275. Side lobes

276. Back lobes

277. 93.6%

278. line of shoot

279. 7.67

280. Induction field

281. 7.57 pW

282. Radiation resistance

283. 2850 W

284. antenna efficiency

285. antenna efficiency

286. 50 uV/m

287. omnidirectional

288. directive gain

289. 108 m

290. is horizontal

291. 141%

292. power gain

293. 51.2 dB

294. EIRP

295. current-fed antenna

296. 30 dBW

297. center-fed

298. 0.796 uW/m^2

299. 90%

300. radiation field

#### Questions and Answers in Antennas Series

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

**MCQ in Antennas**

**MCQ from Number 1 – 50**Answer key:

**PART 1**

**MCQ from Number 51 – 100**Answer key:

**PART 2**

**MCQ from Number 101 – 150**Answer key:

**PART 3**

**MCQ from Number 151 – 200**Answer key:

**PART 4**

**MCQ from Number 201 – 250**Answer key:

**PART 5**

**MCQ from Number 251 – 300**Answer key:

**PART 6**

**MCQ from Number 301 – 350**Answer key:

**PART 7**

**MCQ from Number 351 – 400**Answer key:

**PART 8**

**MCQ from Number 401 – 450**Answer key:

**PART 9**

**MCQ from Number 451 – 500**Answer key:

**PART 10**

### Complete List of MCQ in Communications Engineering per topic

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for problems, if you give the formula used, then it will be very nice. Attempt to transfer ur knowledge is quite appreciable