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ENGINEERS INSTITUTE OF INDIA®
1
ELECTRICAL ENGINEERING
1.
2.
3.
4.
5.
A single phase transformer is connected to a
supply of voltage V and frequency f and is
supplying a load, connected across its
secondary winding. If the supply voltage is
reduced from V to V/2, the flux established in
the core will
(a.) decrease by nearly 50%
(b.) increase by nearly 50%
(c.) remain unchanged
(d.) be affected by amount of load and not by
the applied voltage
Under magnetic saturation of the core of a
transformer, the reactance parameters of its
equivalent circuit are affected such that
(a.) X1 and X2 increase while Xm does not
change
(b.) X1 and X2 do not change while Xm
decreases
(c.) X1 and X2 do not change while Xm
increases
(d.) X1 and X2 decreases while Xm does not
change
A single phase 2000/200 V, 10 kVA, two
winding transformer is reconnected as a stepup autotransformer with 2000 V winding as
primary. The kVA rating of the
autotransformer shall be
(a.) 10 kVA
(b.) 11 kVA
(c.) 110 kVA
(d.) 220 kVA
The power factor at which power is drawn by
a transformer is
(a.) very low under O.C. test but high under
S.C. test
(b.) high under O.C. test but low under S.C.
test
(c.) low both under O.C. and S.C. tests
(d.) high both under O.C. and S.C. tests
The O.C.C. of a shunt d.c. generator is
represented by E = 12+66I. If the field
resistance is 70 ohms, the no-load voltage of
the generator will be
(a.) 144 V
6.
7.
8.
9.
(b.) 210 V
(c.) 220 V
(d.) 288 V
In d.c. shunt motors, the developed torque is
proportional to
(a.) induced e.m.f.
(b.) armature current
(c.) output power
(d.) line current
The speed of a separately excited d.c. motor
can be controlled below base speed by (a)
armature resistance control and (b) supply
voltage control. What happens to the slope of
modified speed-torque characteristics under
the two methods?
(a.) It changes in both types of control
(b.) It remains unchanged in both types of
control
(c.) It remains unchanged in armature
resistance control while changes in
supply voltage control
(d.) It remains unchanged in supply voltage
control while changes in armature
resistance control
The polarity of interpoles used in d.c.
machines is
(a.) same as the main pole ahead in
generators while opposite of the main
pole ahead in motors
(b.) same as the main pole ahead ion motors
while opposite of the main pole ahead in
generators
(c.) same as the main pole ahead in both
motors and generators
(d.) opposite of the main pole ahead in both
motors and generators
In synchronous generators, examine the
following
statements
about
voltage
regulation:
1. Synchronous impedance method gives
pessimistic results
2. MMF method gives optimistic results
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10.
11.
12.
13.
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ENGINEERS INSTITUTE OF INDIA®
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3. In unsaturated machine both methods
(d.) 14.0
(synchronous impedance and MMF)
15. An electric motor developing a starting
give same results.
torque of 10 Nm starts with a load of 6 Nm at
Which of the statements are correct?
its shaft. If the acceleration at start is 2
(a.) 1, 2 and 3
rad/sec2 , the moment of inertia of the system
(b.) Only 1 and 2
must be
(c.) Only 3
(a.) 2 kg-m2
(d.) Only 2 and 3
(b.) 2 N-m2
Under symmetrical short circuit of a
(c.) 0.5 kg-m2
synchronous generator, the armature reaction
(d.) 0.5 N-m2
is
16. A synchronous motor works as a synchronous
(a.) magnetizing
condenser if
(b.) demagnetizing
(a.) underexcited
(c.) cross-magnetising
(b.) overexcited
(d.) mainly magnetising
(c.) excited with 100% excitation
In synchronous generators, the fifth harmonic
(d.) unexcited
in induced emf can be eliminated by using
17. In relation to damper bar winding in a
coils show chorded by an angle
synchronous motor, examine the following
o
(a.) 9
statements:
(b.) 18o
1. Damper bars are provided in slots on
o
(c.) 27
poles
o
(d.) 36
2. Damper bars improve excitation
In induction motor operation, a slip greater
3. Damper bars help the motor self start
than 1 refers to
4. Damper bars minimize hunting.
(a.) regenerative braking
Which of the statements are correct?
(b.) motoring in reverse direction
(a.) 1, 2, 3
(c.) plugging
(b.) 2, 3
(d.) dynamic braking
(c.) 1, 4
As the applied voltage to an induction motor,
(d.) 1, 3, 4
operating under no-load, is reduced to half
18. In large power ratings, synchronous motor is
(a.) its speed reduced and stator current
considered superior to induction motor, since
increases
(a.) it is less expensive
(b.) its speed reduced and stator current also
(b.) its efficiency is better
reduces
(c.) it can be operated at better power factor
(c.) its speed reduces but there is not change
(d.) its speed regulation is superior.
in stator current
19. An induction motor drive is designed for two
(d.) there is no change in speed but stator
speed operation. For this purpose, the motor
current reduces
is provided with two windings on its stator
A 3-phase induction motor is delivering a
corresponding to 4 poles and 8 poles. While
load of 10 kW at a lagging p.f. of 0.5. If a 3the motor was running on 4 pole winding, a
phase capacitor bank of 7.3 kVAR is
changeover to 8 pole winding is made. The
connected at its input, the resulting kVA
motor will
drawn from supply shall be (approximately)
(a.) experience dynamic braking
(a.) 26.5
(b.) experience regenerative braking
(b.) 24.5
(c.) experience no braking but will slow
(c.) 20.0
down due to its inertia
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20.
21.
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ENGINEERS INSTITUTE OF INDIA®
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(d.) draw dangerously high current
24. In a 3-phase full controlled thyristor bridge
A d.c. shunt motor drive of 100 h.p. is run (a)
rectifier
operating
under
continuous
at half the rated speed by armature voltage
conduction mode, each thyristor conducts for
control and (b) at 1.5 times the rated speed by
(a.) 180o and two thyristors conduct at a time
field control. Its power rating in the two cases
(b.) 120o and three thyristors conduct at a
shall be modified as
time
(a.) 100 h.p. in both cases
(c.) 180o and three thyristors conduct at a
(b.) 50 h.p. in case (a) and 150 h.p. in case
time
(b)
(d.) 120o and two thyristors conduct at a time
(c.) 50 h.p. in case (a) and 100 h.p. in case
25. A single phase fully controlled rectifier is
(b)
feeding a d.c. motor. At  = 0o, the armature
(d.) 100 h.p. in case (a) and 150 h.p. in case
voltage is 200 V and motor speed is 1000
(b)
rpm. Neglecting armature resistance and
A single phase full controlled rectifier can
considering continuous conduction, the
work as inverter, if the firing angle is between
armature voltage and speed at  = 60o will be
o
o
(a.) 0 and 90
(a.) 100 V and 500 rpm
o
o
(b.) 60 and 90
(b.) 100 V and 1000 rpm
(c.) 90o and 180o
(c.) 200 V and 500 rpm
(d.) 0o and 60o
(d.) 100 V and speed will depend upon load
When d.c. voltage is converted to a.c. by an
26. The grading capacitors are provided across
inverter, PWM technique is used to
the series connected interrupters in EHV
(a.) control only the output voltage from
circuit breakers for
within the inverter
(a.) reducing short circuit current
(b.) control both the output voltage and
(b.) improving power factor
frequency from within the inverter
(c.) equalizing distribution of recovery
(c.) control the output current
voltage across the interrupters
(d.) reduce losses in the inverter
(d.) preventing inductive current chopping.
A thyristor which is in ON state is to be
27. The minimum cost operating condition for a
switched OFF. For this purpose a reverse bias
thermal plant is that
is applied across it. Examine the following
(a.) the larger units should generate more
statements regarding flow of current from
power as compared to smaller units
anode to cathode (forward current):
(b.) the smaller units should generate more
1. Forward current can continue to flow if
power as compared to larger units
the circuit is purely resistive
(c.) the incremental cost rate of the units be
2. Forward current can continue to flow if
proportional to their rating
the circuit is dominantly inductive
(d.) the incremental cost rate of all the units
3. Forward current can continue to flow if
be equal
the circuit is dominantly capacitive
28. The effect of earth on a three-phase
4. Forward current will immediately stop
transmission line is to
flowing.
(a.) increase its capacitance and decrease
Which of the above statements are correct?
inductance
(a.) Only 4
(b.) decrease its capacitance and increase
(b.) Only 1
inductance
(c.) Only 2 and 3
(c.) increase its capacitance without affecting
(d.) Only 2
inductance
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29.
30.
31.
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ENGINEERS INSTITUTE OF INDIA®
4
(d.) increase its inductance without affecting
(a.) the diversity factor and load factor both
capacitance.
should be low
In case of a transmission line if the voltage
(b.) the diversity factor and load factor both
regulation is negative, then the load power
should be high
factor is
(c.) the diversity factor should be high while
(a.) zero
the load factor should be low
(b.) lagging
(d.) the diversity factor should be low and
(c.) unity
the load factor should be high
(d.) leading
35. The coefficients of reflection for voltage and
The voltage gradient at the surface of a cable,
current for an open ended line are
having a conductor of radius r and a sheath of
respectively
radius R, is minimum when
(a.) -1.0 and -1.0
(a.) R = r/e
(b.) -1.0 and 1.0
(b.) R = r
(c.) 1.0 and 1.0
(c.) R =er
(d.) 1.0 and -1.0
r
(d.) R = e
36. If G is the MVA rating of a synchronous
where e = natural exponent
machine with inertia constant H sec. and
In an N-bus power system with M-PV buses,
operating frequency f, then the angular
the size of the Jacobian matrix for load flow
momentum M of the machine, in MJcalculation is
sec/electrical degree, is
(a.) N×N
GH
(a.)
(b.) (N-M) ×(N-M)
180 f
(c.) (N-1) × (N-1)
GH
(d.) (N-M-1) × (N-M-1)
(b.)
360 f
The zero-sequence equivalent circuit of a
GH
delta-star transformer, with solidly grounded
(c.)
neutral, is
f
(a.)
(b.)
(c.)
(d.)
33. The plug setting multiplier of a 5 Amp.
IDMT relay for a fault current of 4000 Amp.
and a relay setting of 125%, with a C.T. ratio
of 80 will be
(a.) 1
(b.) 2
(c.) 4
(d.) 8
34. If the cost of electricity generation is to be
reduced then
(d.)
H
180 f
37. Circular grooves are provided underneath the
insulator disc for
(a.) reducing the weight of the disc
(b.) improving disc strength
(c.) increasing cooling of the disc
(d.) increasing the creepage distance
38. The arc formation in vacuum circuit breaker
is initiated by
(a.) field emission
(b.) thermal emission
(c.) photo emission
(d.) secondary emission
39. The series reactors are used to
(a.) limit over voltages
(b.) control Ferranti effect
(c.) limit fault current
(d.) improve stability
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40.
41.
42.
43.
ENGINEERS INSTITUTE OF INDIA®
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If the spacings Dab, Dbc and Dca between the
that Area Control Error (ACE) must be zero
phases a, b, and c of a three phase
at least once in a
transmission line are not equal, then the
(a.) 1 sec period
equivalent spacing Deq can be calculated as
(b.) 1 min period
(a.) (Dab + Dbc + Dca)/3
(c.) 10 min period
(b.) (Dab * Dbc * Dca)/3
(d.) 1 hr period
(c.) (Dab + Dbc + Dca)1/3
46. If a network has b branches and n nodes, then
(d.) (Dab * Dbc * Dca)1/3
the number of independent KVL equations
For calculating fault current for a double line
for the network are
to ground fault in an ungrounded system
(a.) b-n
(a.) positive, negative and zero sequence
(b.) n-b+1
networks are connected in series
(c.) b-n-1
(b.) positive, negative and zero sequence
(d.) b-n+1
networks are connected in parallel
47. What will be the value of ZL for maximum
(c.) positive and negative sequence networks
power transfer condition in the circuit shown
are connected in parallel
in Fig. Q.47?
(d.) positive and negative sequence networks
are connected in series
The unit of R, the regulation constant of
turbine speed governor, is
(a.) Hz/MW
(b.) MW/sec
(a.) (2-j2)
(c.) MW/Hz
(b.) (2+j2)
(d.) MW-Hz
(c.) (3-j2)
If in a power system the line to line base
(d.) (3+j2)
voltage is VB kV and the 3-phase base MVA
48. Which of the following statements does not
is SB, then the base impedance of the system
apply to series RLC circuit?
is
(a.) The current and the admittance are
VB2
maximum at resonance

(a.)
3S B
(b.) The phase angle of the impedance
changes from +90o to –90o as the
3VB2

(b.)
frequency is varied from 0 to 
SB
(c.) The total stored energy in the circuit is
V2
constant at resonance
(c.) B 
SB
(d.) The power factor is unity at resonance
49. The average value of a sine wave over a full
2
V *1000

(d.) B
cycle is
SB
44. The pumped storage hydro plants are used as
(a.) Base load plants
(b.) Peak load plants
(c.) Mid-range plants
(d.) both (A) and (B)
45. The specified operating criteria for the proper
operation of interconnected power system is ,
2Vmax

V
(b.) max
2
V
(c.) max

(a.)
(d.) zero
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50.
51.
52.
53.
54.
55.
ENGINEERS INSTITUTE OF INDIA®
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A two port network is reciprocal and
symmetrical, if ABCD parameters satisfy the
conditions:
(a.) AB-CD = 1 and A = D
(b.) AD-BC = 1 and A = D
(a.) Networks A and B are coupled
(c.) AC-BD = 1 and A = D
(b.) A is an active network
(d.) AD-BC = 1 and B = C
(c.) B is a passive network
Tellegen’s theorem is applicable to
(d.) B is a non-linear network
(a.) linear time invariant networks only
56. If XY= 0 then XY is equal to
(b.) non-linear time invariant network only
(a.) X+Y
(c.) any network satisfying Kirchoff’s
(b.) X+Y
current and voltage laws
(d.) linear time variant network only
(c.) X  Y+X  Y
The circuit element having identical
(d.) 1
properties for forward and reverse direction
57. The value of base x will be
of current flow through it, is called a
(101)x + (110)7 = (101)8 + (29)16
(a.) linear element
(a.) 2
(b.) irreversible element
(b.) 7
(c.) bilateral element
(c.) 8
(d.) unilateral element
(d.) 10
A fundamental cut set contains
58. Consider the counter circuit shown in Fig.
(a.) only one tree branch and minimum
Q.58.
number of links
(b.) only one link and minimum number of
tree branches
(c.) only tree branches
(d.) only links
In the circuit shown in Fig. Q. 54 if the
switch is opened at t = 0 and the initial
current through the switch and L1 is 10 A,
then the current i(t) and the voltage v(t) of t >
If the present state QA QB of the counter is QA
0 are
= 1 & QB = 0, the next state of the counter will
be
(a.) QA = 1, QB = 1
(b.) QA = 1, QB = 0
(c.) QA = 0, QB = 1
(d.) QA = 0, QB = 0
59. In 8085 A p, stack pointer is a 16 bit register
which is
(a.) 0 A, 0 V
(a.) Incremented by 2 whenever data is
(b.) 0 A,  V
pushed on to stack
(c.) 6 A, 12 V
(b.)
Incremented by 2 whenever data is
(d.) 10 A, 20 V
popped from stack
The Thevenin and Norton equivalents of
(c.) Incremented by 1 whenever data is
network A at points X, Y (Fig. Q.55) can not
pushed on the stack
be found if
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ENGINEERS INSTITUTE OF INDIA®
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(d.) Neither incremented nor decremented a
result of PUSH and POP operation
60. The instruction LDA 0805H is used to input a
(a.) Zener diode
data from an I/O device. Choose the correct
(b.) Esaki diode
statement
(c.) Varistor
(a.) It is possible only if device is interfaced
(d.) Varactor
using memory mapped I/O
66. The V-I characteristic shown in Fig. Q. 66 is
(b.) It is possible only if device is interfaced
that of
using I/O mapped I/O
(c.) Instead of LDA 0805H, the instruction
STA 0805H should be used
(d.) only IN PORT instruction can be used in
8085 A p.
61. The macro RTL implemented by INR M in
8085 A microprocessor is
(a.) PN junction diode
(a.) (M) (M) +1
(b.) Tunnel diode
(b.) (H,L)(H,L) + 1
(c.) Zener diode
(c.) M(H,L) M(H,L) +1
(d.) Varactor
(d.) (H)  (H) + 1, (L)  (L) +1
67. In a four variable V-K Map shown in Fig.
62. In an 8085 A microprocessor when INTR
simplified expression for X is
interrupt, becomes active, the control will be
transferred to
(a.) 0024 H memory location
(b.) 003C H memory location
(c.) anywhere in the memory decided by the
interrupting device
(d.) 0034 H memory location
63. In an 8255 programmable peripheral interface
both the groups are programmed in made ‘0’.
The possible number of combination in which
the ports can be programmed is
(a.) 16
(b.) 4
(c.) 3
(d.) 2
64. The meaning of direct addressing mode is
(a.) The address of operand is available in
register pair
(b.) The address of operand is available in
PC
(c.) The data is directly available in the
instruction itself
(d.) The address of the operand is available
in the instruction itself.
65. The schematic symbol shown in following
Fig. Q. 65 is that of
(a.) AB+ CD
(b.) A  B + C  D
(c.) B  D
(d.) A  D + B  C
68. In following circuit assuming voltage drop of
LED as 2 V, the LED current when transistor
is saturated will be
(a.) 12 mA
(b.) 9.7 mA
(c.) 6 mA
(d.) 5.8 mA
69. In the following circuit the collector voltage
VC is (assume VBE = 0.7 V)
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70.
71.
72.
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ENGINEERS INSTITUTE OF INDIA®
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(d.) 1.4 %
74. The coil of an instrument has 40 turns. The
mean length of the coil is 25 mm and the
axial length of the coil is 20 mm. If the flux
density is 0.1 T and the coil current is 20 mA,
the torque on the moving coil will be
(a.) 40×10–6 N-m
(b.) 20×10–6 N-m
(c.) 40×10–3 N-m
(d.) 20×10–3 N-m
75. In thermocouple element, heat energy
(a.) -17.4 V
transferred to the hot junction is converted to
(b.) 5.6 V
electrical energy by
(c.) 12.3 V
(a.) Johnson’s effect
(d.) 17.4 V
(b.) Seebeck effect
From the following V-K map the simplified
(c.) Hall effect
expression for Z is
(d.) Faraday’s effect
76. The scale of dynamometer type instrument
marked in terms of RMS value would be
(a.) uniform throughout
(b.) non-uniform, crowded near full scale
(c.) non-uniform, crowded at the beginning
(d.) non-uniform, crowded around mid-scale
(a.) ABC  ABC
77. The harmonic distortion percentage is
(b.) ABC  ABC
accurately measure with
(c.) B
(a.) V.T.V.M.
(d.) ABC  ABC  ABC  ABC
(b.) An oscilloscope
The method of absolute measurement of
(c.) Harmonic distortion meter
resistance is
(d.) Square wave generator
(a.) Ohm method
78. A thermometer has a time constant of 3.5 s. It
(b.) Potentiometer method
is quickly taken from a temperature 0oC to
(c.) Lorenz method
water bath at 100oC. What temperature will
(d.) Rayleigh method
be indicated after 1.5 s?
The instrument which gives the value of the
(a.) 100oC
quantity to be measured in terms of
(b.) 50oC
instrument constants and its deflection is
(c.) 35oC
called the
(d.) 15oC
(a.) absolute instrument
79. A digital voltmeter employees an ADC which
(b.) secondary instrument
requires a start pulse, uses an analog
(c.) recording instrument
comparator and has a relatively fixed
(d.) integrating instrument
conversion time independent of applied
The current passing through a resistor of
voltage. The ADC is
(500.2) is (4.00.02)A. The limiting error
(a.) digital ramp converter
in the computed value of power will be
(b.) dual slope converter
(a.) 0.2 %
(c.) successive approximation converter
(b.) 0.4 %
(d.) flash type
(c.) 0.9 %
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80.
81.
82.
83.
84.
85.
86.
ENGINEERS INSTITUTE OF INDIA®
9
In measurements made using Q-meter,
2. Gain margin and phase margin are
impedance elements should be connected in
positive
(a.) star
3. All roots of characteristic equation must
(b.) delta
lie in left half of s-plane
(c.) series
4. Gain margin is positive and phase
(d.) parallel
margin is negative
The measured values of iron losses of a
Out of these statements
magnetic specimen are 15 W and 25 W at, 40
(a.) 1 and 3 are correct
Hz and 60 Hz respectively at constant flux
(b.) 1 and 2 correct
density. The respective hysteresis and eddy
(c.) 2 and 3 are correct
current losses at 50 Hz are
(d.) 3 and 4 are correct
(a.) 14.584 W and 5.208 W
87. In the feedback system shown below, if the
(b.) 7.5 W and 12.5 W
steady state error for a step input is 0.05, then
(c.) 5.208 W and 14.548 W
the value of K is
(d.) 5 W and 10 W
The most common and best bridge method
for precise measurement of inductance over a
wise range is
(a.) Maxwell’s
(a.) 0.05
(b.) Hay’s
(b.) 0.95
(c.) Wien
(c.) 1.9
(d.) Anderson
(d.) 19
The AC bridge that can be used for accurate
88. Match List I with List II and select the correct
determination of excitation frequency is
answer using the codes given below the lists:
(a.) Wien bridge
List I (Location of poles on s-plane)
(b.) Schering bridge
(c.) Anderson bridge
(d.) De Sauty bridge
A thermo-couple arrangement is to be used to
A.
measure temperature in the range of 700800oC. Point out the pair that would be most
suitable for this application
B.
(a.) Copper-constantan
(b.) Chromel-alumel
(c.) Platinum-platinum rhodium
C.
(d.) Iron-constantan
Rotameter is employed for measuring
(a.) flow
D.
(b.) rotation
List II (Impulse Response)
(c.) specific gravity
(d.) viscosity
Consider the following statements regarding
the stability of a control system
1.
1. Gain margin and phase margin are
negative
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ENGINEERS INSTITUTE OF INDIA®
10
2.
(d.)
90. A unity feedback second order control system
3.
4.
Codes:
A
B
C
D
(a.)
4
1
2
3
(b.)
3
4
2
1
(c.)
1
3
2
4
(d.)
1
3
4
2
89. The Nyquist plot for a control system is
shown in Fig. Q.89. The Bode plot of |G| for
the same system will be
(a.)
(b.)
(c.)
is characterized by G  s  
K
s  Js  B 
where
J = moment of inertia
B = viscous damping coefficient
K = system gain
The transient response specification which is
not affected by variation of system gain is the
(a.) peak overshoot
(b.) damped frequency of oscillations
(c.) setting time
(d.) rise time
91. The second order system X = AX has
 1 1
A
 . The value of its damping
1 0
factor  and natural frequency n are
respectively
(a.) 0.5 and 1
(b.) 1 and 1
(c.) 0.707 and 2
(d.) 1 and 2
92. A negative unit feedback system has forward
path transfer function as Ks/(s2+2s+25). The
break in point(s) of root locus occur at
(a.) s=5
(b.) s=-5
(c.) both A & B
(d.) s = 25
93. In an electrical analog of mechanical system
of rotational motion, using torque-voltage
analogy, inertial and viscous damper are
respectively analogous to
(a.) Inductance and capacitance
(b.) Capacitance and resistance
(c.) Inductance and resistance
(d.) Capacitance and inductance
94. The characteristic equation of a feedback
system is given by
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11
The
condition
for
complete
state
K
s 4  6s 3  11s 2  6s   0
controllability and complete observability is
4
(a.) d1 > 0, b2 > 0, b1 and d2 can be anything
For this system, stable closed loop behavior
(b.) d1 > 0, d2 > 0, b1 and b2 can be anything
can be ensured when gain K is such that
(c.) b1 > 0, b2 > 0, d1 and d2 can be anything
(a.) 0  K  40
(d.) b1 > 0, b2 > 0, d1 < 0 and d2 can be
(b.) 0  K  10
anything
(c.) 0  K  
99. The semilog plot of gain characteristic
(d.) 0  K  20
(BODE plot) of a network is shown in the
 a 1
Fig. Q.99.
95. The eigen values of the matrix 
 are
 a 1
(a.) (a+1), 0
(b.) a, 0
(c.) (a-1), (a-1)
(d.) 0, 0
96. A first order linear system is initially relaxed.
For a unit step signal u(t), the response of the
system is
(1-e-3t), t > 0
If a signal 3. u(t) + (t) is applied to the same
initially relaxed system, the response will be
(a.) 3(1-e-3t) .u(t)+ e-3t. (t)
(b.) (1-3e-3t) .u(t)
(c.) 3(1+e-3t) .u(t)
(d.) 3.u(t)
97. Consider the following statements regarding
the non linear system
1. dead zone can be classified as single
valued non-linearity
2. hysteresis and backlash can be classified
as double valued non-linearity
3. Coulomb friction can be classified as
double valued non-linearity
Out of these statements
(a.) 1 and 3 are correct
(b.) all three are correct
(c.) 1 and 2 are correct
(d.) 2 and 3 are correct
98. Consider the system
The gain cross over frequency c is
(a.) 20 rad/sec
(b.) 30 rad/sec
(c.) 40 rad/sec
(d.) 25 rad/sec
100. The pole-zero configuration of a phase lead
compensating network is given by
(a.)
(b.)
(c.)
b 
1 1
X t   
X  t    1  U (t )

0 1
b2 
C  t   [d1 d2 ] X (t ) .
(d.)
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