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You Are On Multi Choice Question Bank SET 1128

56401. An amplifier of passband 450 kHz to 460 kHz will be named as





56402. Which is not true about”Catter-all’s head-at-risk”signs in Perthe’s disease?





56403. For a 42 year old Male driver with Right hemiplegic stroke,inability to put on a dress i





56404. For broadcasting purpose, full AM signal is preferred to SSB signal because





56405. If ω is the frequency of modulating voltage in FM, the modulation index is proportional to



56406. Which camera tube has gamma of almost unity?





56407. The baud rate is





56408. ”Ischaial Weight Bearing”socket is commonly related to





56409. When satellite radio beam is aimed towards earth, it illuminates on the earth for an oval shaped area called





56410. Which of the following is invariably found in SSB?





56411. In the spectrum of a frequency modulated wave





56412. Which of the following pulse communication system is inherently immune to noise?





56413. In a PCM system, if we increase the quantization levels from 2 to 8, how do the relative bandwidth requirements vary?





56414. If the target area is small compared to wavelength of radar the situation is called





56415. If a signal band limited for fm is sampled at a rate less than 2 fm the reconstructed signal will be





56416. A better SNR can be obtained in a PCM by





56417. In stroke rehabilitation,one of the following rehabilitation measure does not use the principle of ‘Neuro Plasticity’.





56418. The type of noise that interfere very much with high frequency transmission is





56419. In communication systems, the modulating signal is also called





56420. Hue of a colour means





56421. Consider the following statements: The radar pulse must be flat topped to allow accurate range measurementallow good minimum rangeprevent frequency changes in magnetronmake the returned echoes easier to distinguish from noise. Which of the above are correct?





56422. Filter method and phasing method are the methods for generating





56423. In amplitude modulation





56424. Which one the following is an advantage of AM over FM?





56425. Some multiplexing arrangements for telephone system are Space multiplexingTime division multiplexingFrequency division multiplexing Which of the above allow transmission of many independent signals over a single channel?





56426. Industrial noise has the frequency range of





56427. Thermal noise Power is




56428. The characteristic impedance of coaxial cable is about





56429. The diameter and thickness of CD are





56430. Consider the following statements about advantages of phase discriminator over slope detector Fewer tuned circuitsGreater limitingBetter linearityEasy alignment Which of the above are true?





56431. In a superheterodyne radio receiver





56432. The assigned carrier frequency of an FM broadcast station is 96.3 MHz. Its FM signal has a centre frequency of





56433. Digital television is also called





56434. The number of spectral component of a cosine wave is





56435. At FM demodulator output noise power density





56436. According to CCIR standards, the Vestigial Sideband (VSB)





56437. Line of sight transmission is used in





56438. A typical value of insertion loss of SAW filter is





56439. In phase modulation, the phase deviation is





56440. In the human eye, an image persists for a time of about





56441. The different channels in a TDM receiver are separated by





56442. In a pulsed RADAR typical value of pulse duration and pulse frequency respectively are





56443. In a hi-fi system the nonlinear distortion should be less than





56444. A pure tone at 1000 Hz has a dB level of 50 dB. If two such tones exist simultaneously the dB level is about





56445. The HV and other voltage supplies for a TV receiver are obtained from IHVT. The full name for this device is





56446. The main systems used for generation of SSB are





56447. An antenna operates effectively when its dimensions are





56448. The mobile unit of a mobile telephone is generally in





56449. Assertion (A): Water waves are longitudinal but EM waves are transverseReason (R): In an EM wave electric field, magnetic field and propagation are mutually perpendicular.





56450. In a wave the electric field lines are vertical. Then the wave is





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