Answers key for the Compiled MCQs in Radiation and Wave Propagation Part 7 of the series as one topic in Electronic System and Technologies (Communications Engineering) in the ECE Board Exam.

Below are the answers key for the Multiple Choice Questions in Radiation and Wave Propagation - MCQs Part 7.

301. The direction in which the electric plane is radiated.

302. Kenelly Heaviside Layers

303. Wave impedance

304. The field strength

305. Law of Reciprocity

306. VHF and above

307. Ground wave

308. space waves

309. diffraction

310. attenuation

311. Vertically and horizontally polarized separately

312. Horizontally

313. Permitivity

314. Huygen’s Principle

315. Velocity factor

316. Diffraction

317. Line of sight propagation wave

319. Permittivity

320. Surface wave propagation

321. Either a or b

322. Virtual height

323. Critical frequency

324. Both a and b

325. The magnitude of the incident is equal to the reflected waves

326. Refraction

327. Snell’s Law

328. D layer

329. Thermal inversion

330. E-layer

331. All of these

332. F layer

333. Space or direct

334. Inverse Square Law

335. 2

337. Attenuation

338. Wave propagation

339. Carrier frequency

340. Transverse waves

342. They are very reliable

343. Affected by the solar cycle

344. To prevent sky-wave and upper ray interference

345. Tilting

346. Is due to the transverse nature of the waves

348. Their frequency

349. Pass into a medium of different dielectric constant

350. Arises only with spherical wavefronts

### Online Questions and Answers Series

Following is the list of Practice Exam Test Questions in this brand new series:

PART 1: MCQs from Number 1 – 50                        Answer key: PART I
PART 2: MCQs from Number 51 – 100                   Answer key: PART II
PART 3: MCQs from Number 101 – 150                 Answer key: PART III
PART 4: MCQs from Number 151 – 200                 Answer key: PART IV
PART 5: MCQs from Number 201 – 250                 Answer key: PART V
PART 6: MCQs from Number 251 – 300                 Answer key: PART VI
PART 7: MCQs from Number 301 – 350                 Answer key: PART VII
PART 8: MCQs from Number 351 – 400                 Answer key: PART VIII

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

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