TTA BSNL exam Question Papers

I want to appear in the BSNL Telecom Technical Assistant Exam. So can you provide the question paper of the following examination?

As you want to appear in BSNL Telecom Technical Assistant Exam, so here I am providing the following question papers:

BSNL Telecom Technical Assistant Exam Paper
(1) The most common modulation system used for telegraphy is

(a) FSK

(b) PSK.

(c) PCM

(d) single tone modulation

(e) Two tone modulation


(2)VSB is an abbreviation of vestigal sideband, is derived by filtering

(a) DSB

(b) AM

(c) either (a) or (b)

(d) PM

(3) The Hartely law states that

(a) The maximum rate of information transmission depends on the depth of modulation

(b) The maximum rate of information depends on the channel bandwidth.

(c) Only binary codes may be used

(d) Redundancy is essential

(4) The FM signal with, a modulation index mf is passed through a frequency tripler. The wave in

the output of the tripler will have a modulation index of

(a) mf/9

(b) mf/3

(c) mf

(d) 3 mf

(e) 9mf

(5) In high power AM transmission, modulation is done at

(a) Buffer stage

(b) Oscillator stage

(c) RF power stage

(d) If stage

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Attached Files Available for Download

	BSNL Telecom Technical Assistant Exam Paper.pdf (69.8 KB, 278 views)
	BSNL Telecom Technical Assistant Exam Paper 1.pdf (19.6 KB, 172 views)

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