Electrical Engineering (EE)
When two 16-input multiplexers drive a 2-input MUX, what is the result?- a)2-input MUX
- b)4-input MUX
- c)16-input MUX
- d)32 input MUX
Correct answer is option 'D'. Can you explain this answer?
When two 16-input multiplexers drive a 2-input MUX, what is the result?
a)
2-input MUX
b)
4-input MUX
c)
16-input MUX
d)
32 input MUX
The Watch Watch answered • 3 hours agoCombination of 3 Mux has 32 input ports and 1 output port. hence 32 input mux.
Manoj Sharma asked • 2 hours agoIn a thyrite lightning arrester the resistance- a)varies linearly with applied voltage
- b)increases with the applied voltage
- c)Decreases linearly with the applied voltage
- d)is high at low current and low at high current
Correct answer is option 'D'. Can you explain this answer?
In a thyrite lightning arrester the resistance
a)
varies linearly with applied voltage
b)
increases with the applied voltage
c)
Decreases linearly with the applied voltage
d)
is high at low current and low at high current
Im Aj asked • 2 hours agoIn the below figure, the load is highly inductive. The firing angle is a for each of the thyristors. The periods of conduction of Th1 and Th2 respectively are
- a)0 to p and p to 2p
- b)a to p and p + a to 2p
- c)a to p + a and p + p to 2p + a
- d)a to p - a and p + a to 2p - a
Correct answer is option 'C'. Can you explain this answer?
In the below figure, the load is highly inductive. The firing angle is
a
for each of the thyristors. The periods of conduction of Th1 and Th2 respectively are a)
0 to
p
and p
to 2p
b)
a
to p
and p
+ a
to 2p
c)
a
to p
+ a
and p
+ p
to 2p
+ a
d)
a
to p
- a
and p
+ a
to 2p
- a
Irshad Shaikh asked • 2 hours agoThe action of JFET in its equivalent circuit can best be represented as a
- a) current controlled current source
- b) current controlled voltage source
- c) voltage controlled voltage source
- d) voltage controlled current source
Correct answer is option 'D'. Can you explain this answer?
The action of JFET in its equivalent circuit can best be represented as a
a)
current controlled current sourceb)
current controlled voltage sourcec)
voltage controlled voltage sourced)
voltage controlled current source 
Kanhai Lal asked • 3 hours agoIn a split phase motor- a)the starting winding is connected through a centrifugal switch
- b)the running winding is connected through a centrifugal switch
- c)both starting and running windings are connected through a centrifugal switch
- d)centrifugal switch is used to control supply voltage
Correct answer is option 'A'. Can you explain this answer?
In a split phase motor
a)
the starting winding is connected through a centrifugal switch
b)
the running winding is connected through a centrifugal switch
c)
both starting and running windings are connected through a centrifugal switch
d)
centrifugal switch is used to control supply voltage
Sunil Manjani asked • 3 hours agoA signal propagated in a waveguide has a full wave of electric intensity change between the two further walls, and no component of the electric field in the direction of propagation. The mode is- a)TE1.1
- b)TE1.0
- c)TM2.2
- d)TE2.0
Correct answer is option 'D'. Can you explain this answer?
A signal propagated in a waveguide has a full wave of electric intensity change between the two further walls, and no component of the electric field in the direction of propagation. The mode is
a)
TE1.1
b)
TE1.0
c)
TM2.2
d)
TE2.0
Hemalatha S asked • 4 hours agoThe use of electronic instruments is becoming more extensive because they have- a)the capability to respond to signals from remote places
- b)afast response and compatibility with digital computers
- c)both (a) and (b)
- d)a high sensitivity but less reliability
Correct answer is option 'C'. Can you explain this answer?
The use of electronic instruments is becoming more extensive because they have
a)
the capability to respond to signals from remote places
b)
afast response and compatibility with digital computers
c)
both (a) and (b)
d)
a high sensitivity but less reliability
Potu Madhavi asked • 4 hours agoFor the same voltage drop, increasing the voltage of a distributor n-times.- a)reduces the x-section of the conductor by n times
- b)increases the x-section of the conductor by n times
- c)reduces the x-section of the conductor by n2 times
- d)increases the x-section of the conductor by n2 times.
Correct answer is option 'A'. Can you explain this answer?
For the same voltage drop, increasing the voltage of a distributor n-times.
a)
reduces the x-section of the conductor by n times
b)
increases the x-section of the conductor by n times
c)
reduces the x-section of the conductor by n2 times
d)
increases the x-section of the conductor by n2 times.
. If the armature is
Chita Samantaray asked • 4 hours agoFilter used in 12 - pulse converters usually on the AC side are ?
Kishan Pathak asked • 4 hours agoAs compared to full wave rectifier using two diodes, the four diode bridge rectifier has the dominant advantage of- a)higher current carrying capacity
- b)lower peak inverse voltage requirement
- c)lower ripple factor
- d)higher efficiency
Correct answer is option 'B'. Can you explain this answer?
As compared to full wave rectifier using two diodes, the four diode bridge rectifier has the dominant advantage of
a)
higher current carrying capacity
b)
lower peak inverse voltage requirement
c)
lower ripple factor
d)
higher efficiency
Shital Devake asked • 5 hours agoGalloping in transmission line conductors arises generally due to- a)Asymmetrical layers of ice formation
- b)Vortex phenomenon in light winds
- c)Heavy weight of the line conductors
- d)Adoption of horizontal conductor configurations
Correct answer is option 'A'. Can you explain this answer?
Galloping in transmission line conductors arises generally due to
a)
Asymmetrical layers of ice formation
b)
Vortex phenomenon in light winds
c)
Heavy weight of the line conductors
d)
Adoption of horizontal conductor configurations
Sunil Manjani asked • 5 hours agoA Wien-bridge is used to measure the frequency of the input signal. However, the input signal has 10% third harmonic distortion. Specifically the signal is 2 sin 400 πt + 0.2 sin 1200 πt (with t insec). With this input the balance will- a)Lead to a null indication and setting will correspond to a frequency of 200 Hz
- b)Lead to a null indication and setting will correspond to 260 Hz
- c)Lead to a null indication and setting will correspond to 400 Hz
- d)Not lead to null indication
Correct answer is option 'D'. Can you explain this answer?
A Wien-bridge is used to measure the frequency of the input signal. However, the input signal has 10% third harmonic distortion. Specifically the signal is 2 sin 400 πt + 0.2 sin 1200 πt (with t insec). With this input the balance will
a)
Lead to a null indication and setting will correspond to a frequency of 200 Hz
b)
Lead to a null indication and setting will correspond to 260 Hz
c)
Lead to a null indication and setting will correspond to 400 Hz
d)
Not lead to null indication
Vimmy Kumari asked • 5 hours agoOn applying a positive voltage signal to the' base of a normally biased n-p-n CE transistor amplifier- a)emitter current will fall
- b)collector current will fall
- c)base current will fall
- d)collector voltage will become less positive
Correct answer is option 'D'. Can you explain this answer?
On applying a positive voltage signal to the' base of a normally biased n-p-n CE transistor amplifier
a)
emitter current will fall
b)
collector current will fall
c)
base current will fall
d)
collector voltage will become less positive
Swetha Kunduru asked • 6 hours agoFor Bode plot of (1 + jωT) has- a)slope of 20 dB/decade and phase angle + tan-1 (ωT)
- b)slope of - 20 dB/decade and phase angle + tan-1 (ωT)
- c)slope of 20 dB/decade and phase angle - tan-1 (ωT)
- d)slope of - 40 dB/decade and phase angle - tan-1(ωT)
Correct answer is option 'A'. Can you explain this answer?
For Bode plot of (1 + jωT) has
a)
slope of 20 dB/decade and phase angle + tan-1 (ωT)
b)
slope of - 20 dB/decade and phase angle + tan-1 (ωT)
c)
slope of 20 dB/decade and phase angle - tan-1 (ωT)
d)
slope of - 40 dB/decade and phase angle - tan-1(ωT)
Shraddha Pawar asked • 7 hours agoIn a 3-phase squirrel cage induction motor, applied voltage is reduced to x times its rated value. Then, its starting line current from mains and starting torque by auto-transformer starting would reduce respectively from their corresponding direct switching values by a factor of- a)x, x2
- b)x, x
- c)x2, x2
- d)x2, x
Correct answer is option 'C'. Can you explain this answer?
In a 3-phase squirrel cage induction motor, applied voltage is reduced to x times its rated value. Then, its starting line current from mains and starting torque by auto-transformer starting would reduce respectively from their corresponding direct switching values by a factor of
a)
x, x2
b)
x, x
c)
x2, x2
d)
x2, x
Shailesh Patel asked • 9 hours agoAssertion (A): Decoder is not a combinational circuit.Reason (R): Every memory element of semi conductor form has a decoder.- a)Both A and R are correct and R is correct explanation of A
- b)Both A and R are correct but R is not correct explanation of A
- c)A is true, R is false
- d)A is false, R is true
Correct answer is option 'B'. Can you explain this answer?
Assertion (A): Decoder is not a combinational circuit.
Reason (R): Every memory element of semi conductor form has a decoder.
a)
Both A and R are correct and R is correct explanation of A
b)
Both A and R are correct but R is not correct explanation of A
c)
A is true, R is false
d)
A is false, R is true
Dev Never Give Up asked • 11 hours agoTwo -insulator discs of identical capacitance value C makes up a string for a 22 kV, 50 Hz,single-phase overhead line insulation system. If the pin to earth capacitance is also C, then the string efficiency is- a)50%
- b)75%
- c)90%
- d)86%
Correct answer is option 'B'. Can you explain this answer?
Two -insulator discs of identical capacitance value C makes up a string for a 22 kV, 50 Hz,single-phase overhead line insulation system. If the pin to earth capacitance is also C, then the string efficiency is
a)
50%
b)
75%
c)
90%
d)
86%
Gopal Sahu asked • 12 hours agoThe type of protection that does not respond to faults occurring beyond its zone even though the fault current may pass through the zone is- a)Unit protection
- b)Generator protection
- c)Back – up protection
- d)Busbar protection
Correct answer is option 'A'. Can you explain this answer?
The type of protection that does not respond to faults occurring beyond its zone even though the fault current may pass through the zone is
a)
Unit protection
b)
Generator protection
c)
Back – up protection
d)
Busbar protection
Uttam Mohanty asked • 12 hours agoAssertion (A): If points at infinity are included, G(s) has same number of poles and zeros.Reason (R): The function 
has a zero at s = - 2.- a)Both A and R are correct and R is correct explanation of A
- b)Both A and R are correct but R is not correct explanation of A
- c)A is correct but R is wrong
- d)R is correct but A is wrong
Correct answer is option 'B'. Can you explain this answer?
Assertion (A): If points at infinity are included, G(s) has same number of poles and zeros.
Reason (R): The function has a zero at s = - 2.
has a zero at s = - 2.a)
Both A and R are correct and R is correct explanation of A
b)
Both A and R are correct but R is not correct explanation of A
c)
A is correct but R is wrong
d)
R is correct but A is wrong
Pinkesh Patel asked • 14 hours agoIn the circuit shown below, Q1 has negligible collector-to-emitter saturation voltage and the diode drops negligible voltage across it under forward bias. If Vcc is +5V, X and Y are digital signals with 0V as logic 0 and Voc as logic 1, then the Boolean expression for Z is
- a)XY
- b)
- c)
- d)
Correct answer is option 'B'. Can you explain this answer?
In the circuit shown below, Q1 has negligible collector-to-emitter saturation voltage and the diode drops negligible voltage across it under forward bias. If Vcc is +5V, X and Y are digital signals with 0V as logic 0 and Voc as logic 1, then the Boolean expression for Z is
a)
XY
b)
c)
d)
Potu Madhavi asked • 15 hours agoA 3-Phase star-connected symmetrical load consumes P watts of power from a balance supply. If the same load is connected in delta to the same supply , the power consumption will be- a)P
- b)
- c)3 P
- d)not determinable from the given data
Correct answer is option 'C'. Can you explain this answer?
A 3-Phase star-connected symmetrical load consumes P watts of power from a balance supply. If the same load is connected in delta to the same supply , the power consumption will be
a)
P
b)
c)
3 P
d)
not determinable from the given data
Pinkesh Patel asked • 15 hours agoThe Voltage Source Inverter (VSI) shown in the figure below is switched to provide a 50Hz, square wave ac output voltage vo across an RL load. Reference polarity of vo and reference direction of the output current io are indicated in the figure. It is given that R = 3 ohms, L = 9.55mH.
Appropriate transition i.e., Zero Voltage Switching (ZVS) / Zero Current Switching (ZCS) of the IGBTs during turn-on / turn-off is- a)ZVS during turn off
- b)ZVS during turn-on
- c)ZCS during turn off
- d)ZCS during turn-on
Correct answer is option 'D'. Can you explain this answer?
The Voltage Source Inverter (VSI) shown in the figure below is switched to provide a 50Hz, square wave ac output voltage vo across an RL load. Reference polarity of vo and reference direction of the output current io are indicated in the figure. It is given that R = 3 ohms, L = 9.55mH.
Appropriate transition i.e., Zero Voltage Switching (ZVS) / Zero Current Switching (ZCS) of the IGBTs during turn-on / turn-off is
a)
ZVS during turn off
b)
ZVS during turn-on
c)
ZCS during turn off
d)
ZCS during turn-on
Yogesh Goyal asked • 16 hours agoFor a 100 hp 250 V, compound dc motor with compensating winding has a field current of 5 A to produce a voltage of 250 V at 1200 rpm. What will be the shunt field current of this machine at no load?- a)5 A
- b)5.6 A
- c)4 A
- d)0 A
Correct answer is option 'A'. Can you explain this answer?
For a 100 hp 250 V, compound dc motor with compensating winding has a field current of 5 A to produce a voltage of 250 V at 1200 rpm. What will be the shunt field current of this machine at no load?
a)
5 A
b)
5.6 A
c)
4 A
d)
0 A
Akshata Ngl asked • 16 hours agoX(t)=u(t 2)-u(t-2) h(t)=u(t 2)-u(t-2) Find x(t)*h(t) with graphical method?
Deepak Panigrahi asked • 16 hours agoA. Positive sequence components – 5th harmonic component
B. Negative sequence components – 7th harmonic component
C. Zero sequence components – 3rd harmonic component
Above are the matching made for the harmonics and the associated harmonic component, then the correct marking is- a)A,B,C
- b)C
- c)A,B
- d)B,C
Correct answer is option 'B'. Can you explain this answer?
A. Positive sequence components – 5th harmonic component
B. Negative sequence components – 7th harmonic component
C. Zero sequence components – 3rd harmonic component
Above are the matching made for the harmonics and the associated harmonic component, then the correct marking is
B. Negative sequence components – 7th harmonic component
C. Zero sequence components – 3rd harmonic component
Above are the matching made for the harmonics and the associated harmonic component, then the correct marking is
a)
A,B,C
b)
C
c)
A,B
d)
B,C
Mayuk Yadav asked • 16 hours agoArmature reaction in a generator results in- a)Demagnetizing the center of all poles
- b)Demagnetization of trailing pole tip and magnetization of leading pole tip
- c)Demagnetization of leading pole tip and magnetization of trailing pole tip
- d)Magnetizing the center of all poles
Correct answer is option 'C'. Can you explain this answer?
Armature reaction in a generator results in
a)
Demagnetizing the center of all poles
b)
Demagnetization of trailing pole tip and magnetization of leading pole tip
c)
Demagnetization of leading pole tip and magnetization of trailing pole tip
d)
Magnetizing the center of all poles
Kalyan Sreenivas asked • 17 hours agoTwo 490 kW transformers each has a maximum efficiency of 98%, but in one the max efficiency occurs at full load while in other, it occurs at half load. Each transformer is on full load for 4 hours, on half load for 6 hours and on one tenth load for 14 hours per dayQ. The total loss of transformer 1 in a day is _____- a)20 kW
- b)120kW
- c)116 kW
- d)148 kW
Correct answer is option 'D'. Can you explain this answer?
Two 490 kW transformers each has a maximum efficiency of 98%, but in one the max efficiency occurs at full load while in other, it occurs at half load. Each transformer is on full load for 4 hours, on half load for 6 hours and on one tenth load for 14 hours per day
Q.
The total loss of transformer 1 in a day is _____
a)
20 kW
b)
120kW
c)
116 kW
d)
148 kW
Guruvilli Govinda Rao asked • 19 hours agoThree memory chips are of size 1 KB, 2 KB and 4 KB. Their address bus is 10 bits, What are the data bus sizes of the chips ?- a)8 bits, 16 bits and 24 bits respectively.
- b)8 bits, 16 bits and 32 bits respectively.
- c)8 bits, 16 bits and 64 bits respectively.
- d)8 bits, 16 bits and 128n bits respectively
Correct answer is option 'B'. Can you explain this answer?
Three memory chips are of size 1 KB, 2 KB and 4 KB. Their address bus is 10 bits, What are the data bus sizes of the chips ?
a)
8 bits, 16 bits and 24 bits respectively.
b)
8 bits, 16 bits and 32 bits respectively.
c)
8 bits, 16 bits and 64 bits respectively.
d)
8 bits, 16 bits and 128n bits respectively
Yoosuf Salman asked • 19 hours agoStatement: There were different streams of freedom movements in colonial India carried out by the moderates, liberals, radicals, socialists, and so on. Which one of the following is the best inference from the above statement?- a)The emergence of nationalism in colonial India led to our Independence
- b)Nationalism in India emerged in the context of colonialism
- c)Nationalism in India is homogeneous
- d)Nationalism in India is heterogeneous
Correct answer is option 'D'. Can you explain this answer?
Statement: There were different streams of freedom movements in colonial India carried out by the moderates, liberals, radicals, socialists, and so on. Which one of the following is the best inference from the above statement?
a)
The emergence of nationalism in colonial India led to our Independence
b)
Nationalism in India emerged in the context of colonialism
c)
Nationalism in India is homogeneous
d)
Nationalism in India is heterogeneous
Ashish Verma asked • 20 hours agoStatement for Linked Answer Questions: 62 & 63In the following network, the voltage magnitudes at all buses are equal to 1 pu, the voltage phase angles are very small, and the line resistances are negligible. All the line reactances are equal to j1
The voltage phase angles in rad at buses 2 and 3 are- a)
- b)
- c)
- d)
Correct answer is option 'C'. Can you explain this answer?
Statement for Linked Answer Questions: 62 & 63
In the following network, the voltage magnitudes at all buses are equal to 1 pu, the voltage phase angles are very small, and the line resistances are negligible. All the line reactances are equal to j1
The voltage phase angles in rad at buses 2 and 3 are
a)
b)
c)
d)
Sunil Manjani asked • 21 hours agoThe Hartley-Shannon theorem sets a limit on the- a)highest frequency that may be sent over a given channel
- b)maximum capacity of channel with a given noise level
- c)maximum number of coding levels in a channel with a given noise level
- d)maximum number of quantizing levels in a channel with a given noise level
Correct answer is option 'B'. Can you explain this answer?
The Hartley-Shannon theorem sets a limit on the
a)
highest frequency that may be sent over a given channel
b)
maximum capacity of channel with a given noise level
c)
maximum number of coding levels in a channel with a given noise level
d)
maximum number of quantizing levels in a channel with a given noise level
Sunil Manjani asked • 22 hours agoA ferrite is- a)a nonconductor with magnetic properties
- b)an intermetallic compound with particularly good conductivity
- c)an insulator which heavily attenuates magnetic fields
- d)a microwave semiconductor invented by Faraday
Correct answer is option 'A'. Can you explain this answer?
A ferrite is
a)
a nonconductor with magnetic properties
b)
an intermetallic compound with particularly good conductivity
c)
an insulator which heavily attenuates magnetic fields
d)
a microwave semiconductor invented by Faraday
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