Question is ⇒ Signal flow graph is used to find :, Options are ⇒ (A) stability of the system, (B) controllability of the system, (C) transfer function of the system, (D) poles of the system, (E) , Leave your comments or Download question paper.

Question is ⇒ Signal flow graph is used to find :, Options are ⇒ (A) stability of the system, (B) controllability of the system, (C) transfer function of the system, (D) poles of the system, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	Signal flow graph is used to find :
A.	stability of the system [Wrong Answer]
B.	controllability of the system [Wrong Answer]
C.	transfer function of the system [Wrong Answer]
D.	poles of the system [Correct Answer]
View Answer 1 -9 Explanation:- Answer : D Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

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⇒

Assertion (A): For an underdamped system with damping ratio ξ, the maximum overshoot is e-ξp/(1-ξ²)^0.5

Reason (R): Peak time of a second order under damped system = p/ω_d where ω_d is frequency of damped oscillations.

Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is correct but R is wrong
R is correct but A is wrong

⇒ UHF range is
3 to 30 MHz
30 to 300 MHz
300 to 3000 MHz
3000 to 30000 MHz

⇒ The circuit shown in figure
low pass filter
high pass filter
band pass filter
band stop filter

⇒

Match the following:

	List I (I/P - O/P relation)		List II (Property of the system)
A.	y(n) = x(n)	1.	Nonlinear, non-causal
B.	y(n) = x(n²)	2.	Linear, non casual
C.	y(n) = x²(-n)	3.	Linear causal
D.	y(n) = x²(n)	4.	Nonlinear causal

A-1, B-4, C-3, D-2
A-3, B-2, C-1, D-4
A-1, B-2, C-3, D-4
A-3, B-4, C-1, D-2

⇒

Assertion (A): An artificial transmission line can be used as a pulse generator.

Reason (R): A pulse function is used very frequently in network analysis.

Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is correct but R is wrong
A is wrong but R is correct

⇒ Which of the following expressions is true for apparent power in an A.C. circuit?
VI cos Φ
V_av x I_av
V_r.m.s x I_r.m.s
V_peak x I_peak

⇒ In a self bias circuit for CE amplifier, an increase in emitter resistance R_E results in
increase in emitter voltage
decrease in emitter voltage
increase in emitter current
decrease in emitter current

⇒

Assertion (A): An impulse has very high magnitude but very small duration.

Reason (R): A pulse function is always rectangular.

Both A and R are true and R is correct explanation of A
Both A and R are true and R is not the correct explanation of A
A is true but R is false
A is false but R is true

⇒ For high frequency response of a transistor amplifier, suitable model to use is
Kelvin network
Lattice network
Hybrid p
T-network

⇒ The coil of a DArsonval galvanometer has N turns. If flux density is B, current is I and area of coil is A, the deflecting torque is
NBI/A
NBIA
NIA/B
N²IAB

⇒ AM amplifier having noise figure of 20 dB and available power gain of 15 dB is followed by a mixer circuit having noise figure of 9 dB. The overall noise figure as referred to input in dB is
10.44
11.07
21.52
0.63

⇒ In 8085, which of the following registers cannot be paired?
A
E
C
both (b) and (c)

⇒ For Disk partitioning th DOS command is
F DISK
H DISK
A DISK
D DISK

⇒ The charges between a hollow and solid metal spheres reside
through out in both
on outer surface in hollow and through out in solid
on the outer surface in both
none of the above

⇒ For a short dipole having an effective length less than half the wavelength the radiation resistance is
proportional to length
proportional to square root of length
proportional to square of length
none of the above

⇒ The electrical energy required to heat a bucket of water to a certain temperature is 2 kWh. If heat losses, are 25%, the energy input is
2.67 kWh
3 kWh
2.5 kWh
3.5 kWh

⇒ Electrical conductivity of metals expressed in ohm^-1 m^-1 is of the order of
10¹⁰
10⁵
10^-4
10^-6

⇒ For a series R-L-C circuit, the characteristic equation is given
critically damped
underdamped
undamped
overdamped

⇒ μ₀ = 8.85 x 10^-12F/m.
TRUE
FALSE

⇒ In figure, V_{0zero
5.7 V
6.9 V
12.6 V}

⇒ A three-section RC phase shift oscillator has R = 10K ohms and C = 0.001 μF. If the oscillator is to be made variable using the same value of R, what should be the value of capacitor to obtain a frequency if 1 kHz?
636 pF
180 pF
65 pF
30 pF

⇒ Which op-amp circuit uses a resistance in series with input and capacitor in feedback path?
Differentiating amplifier
Integrating amplifier
Logarithmic amplifier
Exponential amplifier

⇒ EEPROM permits
read operation only
read and byte erase operations
read, byte erase and byte write operations
read, byte erase, byte write and chip erase operations

⇒ In a single phase full wave ac regulator, the firing angles in the two half cycles
are always equal
are sometimes equal
are never equal
may be equal or unequal

⇒ Find R_L for maximum power tran
3 Ω
1.125 Ω
4.17 Ω
none

⇒ In common base connection, the output characteristics of a bipolar junction transistor is drawn between
I_C and V_CB
I_C and V_CE
I_E and V_CB
I_E and V_CE

⇒ Refractive index of glass is 1.5. Find the wavelength of a beam of light with a frequency of 10¹⁴ Hz in glass. Assume velocity of light is 3 x 10⁸ m/sec in vacuum.
4 μm
3 μm
2 μm
1 μm

⇒ In a satellite system circular polarization is to be obtained. The antenna used is
parabolic
horn
log periodic
helical

⇒ SCR turns of from conducting state to blocking state on
reducing gate current
reversing gate voltage
reducing anode current below holding current value
applying ac to the gate

⇒ In a rare gas, the molecules of some atoms have an excess positive or negative charge. The electric field tends to shift positive ions relative to negative ions. This is known as ionic polarization.
TRUE
FALSE