APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY Previous Years Question Paper & Answer

Course : B.Tech

Semester : SEMESTER 6

Subject : Comprehensive Exam

Year : 2019

Term : MAY

Scheme : 2015 Full Time

Course Code : EC 352

Page:2





PDF Text (Beta):

10.

11.

12.

14.

15.

16.

17.

18.

20.

21.

22.

23.

11111 Pages: 4

When the projectors are parallel to each other and also perpendicular to the plane, the
projection is called

a) Perspective b) Oblique projection c) Isometric d) Orthographic
projection projection projection

In AutoCAD, to obtain parallel lines, concentric circles and parallel curves; is used

a) Array b) Fillet c) Copy d) Offset

PART B- CORE COURSES

A source of angular frequency of | rad/s has a source impedance consisting of a 1Q resistance in series with a 1H
inductance. The load that will obtain maximum power is

a) 12 resistance b) 1Q resistance in ८) 12 resistance in d) 1Q resistance in
parallel with 1H parallel with 7 series with 7
inductance capacitance capacitance

Laplace transform of the delayed unit impulse function 6(t-1) is:

a) 1 0) 0 ©) சீ d) infinity
AnRC circuit has capacitance C=2uF in series with a resistance R = 1MQ. The time constant

of the circuit (in seconds) is:

a) 3 0) 0.5 ८) 1/3 d) 2

As the poles of a network shift away from the x-axis, the response

a) Remains constant b) Becomes less c) Becomes more d) None of these
oscillating oscillating

If a two port network has transmission parameters A,B,C & D, the impedance measured at input port with output

open circuited is

a) A/C b) B/D ०) AD/BC ५) 0

A series RLC circuit has a resonance frequency of 1 kHz and a quality factor Q of 200. If each of R, L, and C is
doubled from its original value , the new Q of the circuit is

a) 25 0) 50 c) 100 ५) 200

Find the value of x if the mutual inductance is 20H, the inductance of coil | is x H and the inductance of coil 2 is
8H. The coupling coefficient is 5.

a) 2H b) 4H c) 6H d) 8H
The odd part of x(t)=1+sin7(t) is

a) 1 0) ൭0) ८) 1+sin*(t) ५) 0

A stable LTI system will have its impulse response,

a) stable b) causal c) Finite for all times d) Absolutely
summable

A continuous time non-periodic signal is characterised with a

a) Fourier series b) Fourier transform c) Z-transform d) Discrete time
fourier series
For an RC low pass filter the frequency response, H(s), where s=jq, is

a) 1I/(sCR+1) b) s/i(sCR+1) c) RAsCR+1) d) C/(sCR+1)
If Z-transform of x(n) is X(z), then Z-transform of a"x(n) is

a) ೩೫೫7) b) aX(z/a) c) X(z/a) d) a X(z)

A stable and causal discrete system will have all its poles of its transfer function

a) Onthe unit circle b) Inside the unit circle c) Outside the unit d) Location of poles

Page 2 of 4

Similar Question Papers