Semester : SEMESTER 6
Subject : Comprehensive Exam
Year : 2019
Term : MAY
Scheme : 2015 Full Time
Course Code : EC 352
Page:2
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