ர அடல கசிய கக தலயின்‌ ச SFIS eee

82.

38.

84.

85.

36.

37.

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‘Two non-inverting amplifiers, one having a unity gain and the other having a gain of 10, are
made using identical operational amplifiers. As compared to the unity gain amplifier, the
amplifier circuit with gain 10 has :

(A) Less negative feedback (B) Greater input impedance

(C) More bandwidth (D) None of these

The image frequency of the AM super heterodyne receiver when it is tuned to recéive a radio
station operating at 628 KHz is:

(A) 1538 KHz (8) 1256 KHz

(C) 1083 KHz (0) 855.5 KHz

A 741 type op-amp has a gain bandwidth product of 1 MHz. A non-inverting amplifier using
this op-amp and having a voltage gain of 20 dB will exhibit a -3dB bandwidth of :

(A) 50 KHz (B) 100 KHz
‏یم‎ xn: று KH
17 70.7
How many number of NOR gates are required to realise an AND function?
(A) 2 ‏رت‎ 3 ⋅
(0 4 (0) 5

Simplified form of the logic expression :
(X4+¥+2)(X+¥+2)(X+¥+Z)

(6) डे ൫ X¥+Z

© X+YZ 0) ೫೫7.2
The C — band is:

(A) 1to2GHz (8) 2t04GHz

(C) Ato8 GHz (D) 8to12GHz

If D is the distance between two co-channel cells and R is the cell radius, then 2 is known

४६:
(A) Co-channel interference reduction factor
(B) Adjacent channel interference reduction factor
(C) Adjacent and co-channel interference reduction factor .
(D) None of these

The cell using different carrier frequencies in a cluster is :
(ಗಿ) Co-channel cell (B) Adjacent cell
(0) Micro cell (D) Macro cell

Which of the following is the correct statement in connection with satellite communication?
(A) Asatellite is stationary in the outer - space
(B) Co-located earth stations are used for frequency diversity
(C) Satellites are allocated so that it is impossible for two earth stations not to face
the same satellite
(D) A satellite earth station must have as many receiver chains as there are carriers
transmitted to it
7 ⋅ 005/2016
[P.7.0.]