MCQ in Communications Engineering Part 8 – Answers

Below are the answers key for the Miscellaneous Multiple Choice Questions in Communications Engineering Part 8.

351. b. Trunk circuits

352. d. Local loop

353. a. 852 and 1336 Hz

354. c. 46 ms and 69 ms

355. b. Far, sound

356. b. 1394, 2954 Hz

357. b. EBHC

358. a. Crosspoint

359. c. PCM

360. d. 54.35 km

361. b. Propagation

362. c. Space wave

363. a. Satellite waves

364. b. Super refraction

365. d. Space wave

366. b. Attenuation

367. b. They are very reliable

368. a. Ionosphere

369. b. Wavelength

370. c. Allow the use of practical antennas

371. a. Amplifying the higher audio frequency

372. b. Mixer input must be tuned to the signal frequency

373. a. No

374. b. 0.25

375. b. 35.2 dB

376. b. Baseband AM

377. c. E.H. Armstrong

378. c. Mixer and local oscillator

379. d. AGC

380. a. 3825 Hz

381. d. Lower initial cost of installation

382. a. 1014 to 1015 Hz

383. d. Low attenuation

384. a. Base

385. c. FSK

386. d. ESN

387. c. Losses the conducting walls of the guide

388. c. It provide drops and inserts

389. b. Determined by the sender and receiver, not by the communications system.

390. b. More bandwidth than analog

391. d. Application independent interfaces

392. b. Automatic Direction Finder

393. b. INS

394. b. B-Scan

395. c. Ground-based radar

396. c. By passing high audio frequencies

397. c. Pressure

398. b. 4.7

399. a. Echo

400. d. 1.0 sec

The Series

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

Complete List of MCQs in Communications Engineering per topic

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