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Three point tracking is achieved with | |
A. | double conversion [Wrong Answer] |
B. | padder capacitor [Correct Answer] |
C. | double spotting [Wrong Answer] |
D. | variable selectivity [Wrong Answer] |
View Answer
Explanation:-
Answer : B Discuss it below : !! OOPS Login [Click here] is required to post your answer/result |
Also Read Similar Questions Below :
⇒ The gain margin of first and second order systems is infinite.
TRUE
FALSE
⇒ In an RC phase shift oscillator, the total phase shift of the three RC lead networks is
360°
180°
90°
0°
⇒ For a single phase half wave converter feeding a resistive load, the firing angle a. The waveshape in below figure is
output voltage
input voltage
voltage drop across thyristor
none of the above
⇒ The drift velocity of electrons and holes is proportional to electric field strength.
TRUE
FALSE
⇒ For representing two sinusoidal voltages on a phasor diagram
Both voltages must be of the same frequency
Both voltages must be sinusoidal but may be of different frequencies
One of the voltages must be of 50 Hz
The frequency of one must be integral of that of other
⇒ Signal flow graph is used to find :
stability of the system
controllability of the system
transfer function of the system
poles of the system
⇒ Calculate the resistivity of n-type semiconductor from the following data, Density of holes = 5 x 10^{12} cm^{-3}. Density of electrons = 8 x 10^{13} cm^{-3}, mobility of conduction electron = 2.3 x 10^{4} cm^{2}/ V-sec and mobility of holes = 100 cm^{2}/V-sec.
0.43 Ω-m
0.34 Ω-m
0.42 Ω-m
0.24 Ω-m
⇒ In microwave system the function of mode filter is
to suppress modes with lower cut off frequencies
to suppress modes with higher cut off frequencies
to change mode of wave transmission
both (b) and (c)
⇒ Microprocessor 8088 has
16 bit registers and 16 bit data bus
8 bit registers and 8 bit data bus
8 bit registers and 16 bit data bus
16 bit registers and 8 bit data bus
⇒ For a second order system with 0 < ξ < 1, the angle which poles make with negative real axis is
sin^{-1} ξ
cos^{-1} ξ
tan^{-1} ξ
cot^{-1} ξ
⇒ The RC network of wein bridge oscillator consists of resistors and capacitors of values R = 220 kΩ and C = 250 PF Determine the frequency of oscillation
2.98 kHz
3 kHz
2 kHz
10 kHz
⇒ Which of the following cannot be the Fourier series expansion of a periodic signal?
x(t) = 2 cos t + 3 cos 3t
x(t) = 2 cos pt + 7 cos t
x(t) = cos t + 0.5
x(t) = 2 cos 1.5pt + sin 3.5 pt
⇒ One of the following can be used to generate a pulse whenever triggered
flip-flop
monostable multivibrator
stable multivibrator
Schmitt trigger
⇒ If Y(s) = 1 + s, the network has
1 Ω resistor and 1 F capacitor in series
1 Ω resistor and 1 F capacitor in parallel
1 Ω resistor and 1 H inductor in series
1 Ω resistor and 1 H inductor in parallel
⇒ A voltage v(t) which is a gaussian ergodic random process witha mean of zero and a varance of 4 volt^{2} is measured by a meter which first square and then reads its dc component. The reading will be
0
4
16
2
⇒
A-2, B-3, C-4, D-1
A-2, B-4, C-1, D-3
A-1, B-2, C-3, D-4
A-3, B-2, C-4, D-1
⇒ Which curve represents the fidelity curve of a standard recei
Curve A
Curve B
Curve C
Curve D
⇒ The ideal voltmeter V of figure will read __________ v
0
10
5
1
⇒ Radar antennas are usually
dipoles
yagi antennas
parabolic dishes
none of the above
⇒
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 R is wrong
A is wrong R is correct
⇒ In a Vidicon camera tube,
both sides of the target plate have the coating of tin oxide
both sides of the target plate have the coating of antimony tri-sulphide
the side of target plate facing the light has a coating of tin oxide and the side facing electron gun has a coating of antimony trisulphide
the side of target plate facing the light has a coating of antimony trisulphide while the side facing the electron gun has a coating of tin oxide
⇒ If operator 'a' = 1 ∠120° then (1 + a) =
-a
-a^{2}
a
-1
⇒
Both A and R are true and R is correct explanation of A
Both A and R are true but R is not correct explanation of A
A is true but R is false
A is false but R is true
⇒ A junction FET, can be used as a voltage variable resistor
at pinch-off condition
beyond pinch-off voltage
well below pinch-off condition
for any value of V_{DS}
⇒ A signal is sampled at Nyquist rate f_{s} = 2f_{0}. The function can be recovered from its samples only. If it is a
Periodic square wave of fundamental frequency f_{0}
Triangular wave of fundamental frequency f_{0}
Periodic sine wave of fundamental frequency f_{0}
Unit impulse function
⇒ The advantage of FET over BJT is
high input impedance
lower noise
no thermal runaway
all of the above
⇒ The useful magnetic flux obtainable from any closed surface is
unity
constant
both (a) and (b)
none of the above
⇒ Norton's equivalent circuit
is same as Thevenin's circuit
has no relation with Thevenin's circuit
is dual of Thevenin's circuit
is reciprocal of Thevenin's circuit
⇒ Computers use RC circuit for edge triggering.
TRUE
FALSE
⇒ Which of the following is the poorest conductor of electricity?
Copper
Aluminium
Manganin
Nichrome
⇒ The gain margin of first and second order systems is infinite.
TRUE
FALSE
⇒ In an RC phase shift oscillator, the total phase shift of the three RC lead networks is
360°
180°
90°
0°
⇒ For a single phase half wave converter feeding a resistive load, the firing angle a. The waveshape in below figure is
output voltage
input voltage
voltage drop across thyristor
none of the above
⇒ The drift velocity of electrons and holes is proportional to electric field strength.
TRUE
FALSE
⇒ For representing two sinusoidal voltages on a phasor diagram
Both voltages must be of the same frequency
Both voltages must be sinusoidal but may be of different frequencies
One of the voltages must be of 50 Hz
The frequency of one must be integral of that of other
⇒ Signal flow graph is used to find :
stability of the system
controllability of the system
transfer function of the system
poles of the system
⇒ Calculate the resistivity of n-type semiconductor from the following data, Density of holes = 5 x 10^{12} cm^{-3}. Density of electrons = 8 x 10^{13} cm^{-3}, mobility of conduction electron = 2.3 x 10^{4} cm^{2}/ V-sec and mobility of holes = 100 cm^{2}/V-sec.
0.43 Ω-m
0.34 Ω-m
0.42 Ω-m
0.24 Ω-m
⇒ In microwave system the function of mode filter is
to suppress modes with lower cut off frequencies
to suppress modes with higher cut off frequencies
to change mode of wave transmission
both (b) and (c)
⇒ Microprocessor 8088 has
16 bit registers and 16 bit data bus
8 bit registers and 8 bit data bus
8 bit registers and 16 bit data bus
16 bit registers and 8 bit data bus
⇒ For a second order system with 0 < ξ < 1, the angle which poles make with negative real axis is
sin^{-1} ξ
cos^{-1} ξ
tan^{-1} ξ
cot^{-1} ξ
⇒ The RC network of wein bridge oscillator consists of resistors and capacitors of values R = 220 kΩ and C = 250 PF Determine the frequency of oscillation
2.98 kHz
3 kHz
2 kHz
10 kHz
⇒ Which of the following cannot be the Fourier series expansion of a periodic signal?
x(t) = 2 cos t + 3 cos 3t
x(t) = 2 cos pt + 7 cos t
x(t) = cos t + 0.5
x(t) = 2 cos 1.5pt + sin 3.5 pt
⇒ One of the following can be used to generate a pulse whenever triggered
flip-flop
monostable multivibrator
stable multivibrator
Schmitt trigger
⇒ If Y(s) = 1 + s, the network has
1 Ω resistor and 1 F capacitor in series
1 Ω resistor and 1 F capacitor in parallel
1 Ω resistor and 1 H inductor in series
1 Ω resistor and 1 H inductor in parallel
⇒ A voltage v(t) which is a gaussian ergodic random process witha mean of zero and a varance of 4 volt^{2} is measured by a meter which first square and then reads its dc component. The reading will be
0
4
16
2
⇒
Match the following:
List I | List II | ||
---|---|---|---|
A. | T (Reflection coefficient) = 0 | 1. | (Z_{L} - Z_{o})/(Z_{L} + Z_{o}) |
B. | T = - 1 | 2. | Z_{L} = Z_{o} |
C. | T = + 1 | 3. | Z_{L} = 0 |
D. | - 1 < T < + 1 | 4. | Z_{L} = ∞ |
A-2, B-3, C-4, D-1
A-2, B-4, C-1, D-3
A-1, B-2, C-3, D-4
A-3, B-2, C-4, D-1
⇒ Which curve represents the fidelity curve of a standard recei
Curve A
Curve B
Curve C
Curve D
⇒ The ideal voltmeter V of figure will read __________ v
0
10
5
1
⇒ Radar antennas are usually
dipoles
yagi antennas
parabolic dishes
none of the above
⇒
Assertion (A): C allows the use of logical operators, AND, OR, NOT.
Reason (R): C has logical operators as well as bitwise operators like AND, OR etc.
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 R is wrong
A is wrong R is correct
⇒ In a Vidicon camera tube,
both sides of the target plate have the coating of tin oxide
both sides of the target plate have the coating of antimony tri-sulphide
the side of target plate facing the light has a coating of tin oxide and the side facing electron gun has a coating of antimony trisulphide
the side of target plate facing the light has a coating of antimony trisulphide while the side facing the electron gun has a coating of tin oxide
⇒ If operator 'a' = 1 ∠120° then (1 + a) =
-a
-a^{2}
a
-1
⇒
Assertion (A): In some materials, ∈_{r} is independent of temperature while in others, ∈_{r} depends on temperature.
Reason (R): If permanent dipoles are absent, ∈_{r} varies with temperature.
Both A and R are true and R is correct explanation of A
Both A and R are true but R is not correct explanation of A
A is true but R is false
A is false but R is true
⇒ A junction FET, can be used as a voltage variable resistor
at pinch-off condition
beyond pinch-off voltage
well below pinch-off condition
for any value of V_{DS}
⇒ A signal is sampled at Nyquist rate f_{s} = 2f_{0}. The function can be recovered from its samples only. If it is a
Periodic square wave of fundamental frequency f_{0}
Triangular wave of fundamental frequency f_{0}
Periodic sine wave of fundamental frequency f_{0}
Unit impulse function
⇒ The advantage of FET over BJT is
high input impedance
lower noise
no thermal runaway
all of the above
⇒ The useful magnetic flux obtainable from any closed surface is
unity
constant
both (a) and (b)
none of the above
⇒ Norton's equivalent circuit
is same as Thevenin's circuit
has no relation with Thevenin's circuit
is dual of Thevenin's circuit
is reciprocal of Thevenin's circuit
⇒ Computers use RC circuit for edge triggering.
TRUE
FALSE
⇒ Which of the following is the poorest conductor of electricity?
Copper
Aluminium
Manganin
Nichrome