MCQs in Modulation Part VIII - Answers

Answers key for the Compiled MCQs in Modulation Part 8 of the series as one topic in Electronic System and Technologies (Communications Engineering) in the ECE Board Exam.

Answers in Modulation - MCQs Part VIII

Below are the answers key for the Multiple Choice Questions in Modulation - MCQs Part 8.

351. 112.5 kHz

352. Mixer

353. Approximately equal to the circuit resistance

354. Colpitts, Hartley, and Pierce

355. Through a tapped coil

356. Through a capacitive divider

357. Through a neutralizing capacitor

358. Colpitts

359. Mechanical vibration of a crystal by the application of a voltage

360. It doesn’t require an LC tank circuit

361. Colpitts

362. It is stable

363. Efficiency = (RF power out / dc power in) x 100%

364. 14.4 ohms

365. Approximately 12

366. The back and forth oscillation of electrons in an LC circuit

367. By neutralization

368. Frequency translation

369. Balanced modulator

370. Both a and c

371. 30.8 MHz

372. Nonlinear

373. Push-push

374. Frequency synthesizer

375. both A and B

376. Indirect

377. All of the above

378. The change of the crystal oscillator frequency by loading

379. Both a and b

380. All of the above

381. SSB

382. Buffer amplifier

383. Signal bias

384. Pulse

385. Cancelling the effect of internal device capacitance

386. Splatter

387. Class C

388. Minimum IC in the same stage

389. Carrier

390. Is tuned to a harmonic of the input signal

391. 15.288 kHz

392. 7.5 V

393. 4 MHz

394. 11 MHz

395. 8 MHz

396. 185 Hz

397. 6.25 W

398. 128 ohms

399. 56. 25 W

400. 15.625 ohms

Online Questions and Answers Series

Following is the list of practice exam test questions in this brand new series:

Modulation MCQs
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
PART 9: MCQs from Number 401 – 450                 Answer key: PART IX
PART 10: MCQs from Number 451 – 500                 Answer key: PART X

Complete List of MCQs in Communications Engineering per topic


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