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Depending on the technique used, digitized television requires a bit rate between __________ millions. | |
A. | 40 and 92.5 [Correct Answer] |
B. | 25 and 60 [Wrong Answer] |
C. | 30 and 82.5 [Wrong Answer] |
D. | 2 [Wrong Answer] |
View Answer
Explanation:-
Answer : A Discuss it below : !! OOPS Login [Click here] is required to post your answer/result |
Also Read Similar Questions Below :
⇒
A-1, B-2, C-3, D-4
A-3, B-4, C-1, D-2
A-2, B-3, C-4, D-1
A-4, B-1, C-2, D-3
⇒ Which of the following polynomials is not Hurwitz?
P_{1} = s^{8} + 2s^{6} + 4s^{4}
P_{2} = s^{6} - 3s^{4} + 2s^{2} + 1
P_{3} = s^{4} + 3s^{3} + 3s^{2} + 2s + 1
P_{4} = s^{7} + 2s^{6} 2s^{4} + 4s^{3} + 8s^{2} + 8s + 4
⇒ As regards BCH code, Hamming code and Reed-Solomon code
BCH and Hamming code are special cases of Reed-Solomon code
Reed-Solomon and Hamming code are special cases of BCH code
BCH and Reed-Solomon code are special case of Hamming code
none of the above
⇒ A computer program is used to read M and print the sum 2 + 4 + 6 + 8 +.........+ 2M. If M = 9 , the print out will show the number
9
18
90
100
⇒ A 1 MHz sinusoidal carrier is amplitude modulated by a symmetrical square wave of period 100 μ sec. Which of the following frequencies will not be in the modulated signal?
990 kHz
1010 kHz
1020 kHz
1030 kHz
⇒ An RLC series circuit is fed form 100 V ac supply. Inductance is 1 H and Q = 7.5. At resonance, the voltage across inductance is
750 V
100 V
about 13.5 V
1500 V
⇒ A transistor with a = 0.9 and I_{CBO} = 10 μA is biased so that I_{BQ} = 90 μA. Then I_{EQ} will be
5.15 mA
5.2 mA
5 mA
990 mA
⇒ A long specimen of P type semiconductor material
is + vely charged
is electrically neutral
has an electric field directed along its length
acts as a dipole
⇒
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 true, R is false
A is false, R is true
⇒ In an RC series circuit excited by dc voltage E, the current at t = 0 is
E/R
E/C
zero
infinity
⇒ A steel bar needs 1200 AT to magnetise it. The voltage that must be applied to the magnetising coil of 100 turns and 10 Ω resistance is __________ volt.
120
12
1200
10
⇒ The number of variables in a function is odd and the number of minterms with even number of 0's are same as the number of minterms with odd number at 1 's, the expression formed can be represented in __________ as well as __________ form.
exclusive - OR, NOR
equivalence, exclusive - OR
AND, coincidence
OR, exclusive - OR
⇒ A feedback network to be used with an amplifier to provide oscillation is tested and found to give an output of 0.124 V with a 0.5 V input. What must be the minimum gain of the oscillator to provide oscillations?
40
60
100
130
⇒ Circuit switching, Message switching and Packet Switching Network belong to which of the following systems?
Computer communication system
Electromechanical communication system
PBX system
EPBX system
⇒ In pulse code modulation when the maximum frequency in the signal is f_{max} the bandwidth required will be
≤ p.f_{max}
≥ p.f_{max}
≤ (p.f_{max})^{2}
≥ (p.f_{max})^{2}
⇒ Electric breakdown strength of a material depends on its
composition
moisture content
thickness
all of the above
⇒ If f_{h}(t) is Hilbert transform of f(t), then Hilbert transform of f_{h}(t) is
-f(t)
+f(t)
f^{2}(t)
f(t)
⇒ In a 100% amplitude modulated signal, the power in the upper sideband when carrier power is to be 100 W and modulation system SSBSC, is
100 W
66 W
50 W
25 W
⇒ India's first domestic geostationary satellite 1NSAT-IA was launched on 10th April 1982 from
USSR
USA
UK
UP
⇒ A surface charge density of 8 nc/m^{2} is present on a plane x = z. A line charge density of 30 nC/m is present on line x = 1, y = 2 Find V_{AB} for points A(3, 4, 0) and B(4, 0, 1)
583.38 V
58.338 V
583.38 mV
58.338 mV
⇒ The decoder for PAL system is
similar to NTSC decoder
similar to NTSC decoder supplemented by 64 ms delay line
similar to NTSC decoder supplemented by 64 ms delay line and an electronic commutator
either (b) or (c)
⇒ Without a spectrum analyser, it is not possible to determine
carrier frequency
antenna pattern
pulse width
spurious signal strength and its location
⇒ For an RC admittance function Y, the slope dY/dσ
is positive
is negative
may be positive or negative
0
⇒ Inverse Fourier transform of '1' is
U(t)
δ(t)
0'
infinite
⇒ Mark the false statement:
since wave-shape of a digital signal is unimportant, linear amplifiers are not required
the precise amplitude of a digital signal is also unimportant provided two voltage levels (0 and 1) are quite different
the leading and trailing edges of a digital signal need not be sharp
actual digital waves have rise and fall times of the order of a few nano seconds
⇒ The logic function implemented by the following circuit at the terminal OU
P NOR Q
P NAND Q
P OR Q
P AND Q
⇒ Consider a 565 PLL with R_{T} = 10 kΩ and C_{T} = 0.01 μF. What is the output frequency of the VCO?
10 kHz
5 kHz
2.5 kHz
1.25 kHz
⇒ Antenna commonly used for microwave links are
loop antennas
log periodic antennas
paraboloidal dishes
rhombic antennas
⇒
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
⇒ Henry is equivalent to
Volts/Ampere
Weber/Volt
Weber/Ampere
Weber/Ampere^{2}
⇒
Match the following:
List I | List II | ||
---|---|---|---|
A. | Mu Metal | 1. | very high magnetic permeability |
B. | Samrium/cobalt | 2. | very high magnetic remanence |
C. | Sapphire | 3. | very high thermal conductivity |
D. | Ferrites | 4. | very stable magnetic permeability |
A-1, B-2, C-3, D-4
A-3, B-4, C-1, D-2
A-2, B-3, C-4, D-1
A-4, B-1, C-2, D-3
⇒ Which of the following polynomials is not Hurwitz?
P_{1} = s^{8} + 2s^{6} + 4s^{4}
P_{2} = s^{6} - 3s^{4} + 2s^{2} + 1
P_{3} = s^{4} + 3s^{3} + 3s^{2} + 2s + 1
P_{4} = s^{7} + 2s^{6} 2s^{4} + 4s^{3} + 8s^{2} + 8s + 4
⇒ As regards BCH code, Hamming code and Reed-Solomon code
BCH and Hamming code are special cases of Reed-Solomon code
Reed-Solomon and Hamming code are special cases of BCH code
BCH and Reed-Solomon code are special case of Hamming code
none of the above
⇒ A computer program is used to read M and print the sum 2 + 4 + 6 + 8 +.........+ 2M. If M = 9 , the print out will show the number
9
18
90
100
⇒ A 1 MHz sinusoidal carrier is amplitude modulated by a symmetrical square wave of period 100 μ sec. Which of the following frequencies will not be in the modulated signal?
990 kHz
1010 kHz
1020 kHz
1030 kHz
⇒ An RLC series circuit is fed form 100 V ac supply. Inductance is 1 H and Q = 7.5. At resonance, the voltage across inductance is
750 V
100 V
about 13.5 V
1500 V
⇒ A transistor with a = 0.9 and I_{CBO} = 10 μA is biased so that I_{BQ} = 90 μA. Then I_{EQ} will be
5.15 mA
5.2 mA
5 mA
990 mA
⇒ A long specimen of P type semiconductor material
is + vely charged
is electrically neutral
has an electric field directed along its length
acts as a dipole
⇒
Assertion (A): When a function f(t) is represented as exponential Fourier series, the set of complex coefficients F_{n} is called frequency spectrum of f(t)
Reason (R): Frequency spectrum is also called line spectrum.
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 true, R is false
A is false, R is true
⇒ In an RC series circuit excited by dc voltage E, the current at t = 0 is
E/R
E/C
zero
infinity
⇒ A steel bar needs 1200 AT to magnetise it. The voltage that must be applied to the magnetising coil of 100 turns and 10 Ω resistance is __________ volt.
120
12
1200
10
⇒ The number of variables in a function is odd and the number of minterms with even number of 0's are same as the number of minterms with odd number at 1 's, the expression formed can be represented in __________ as well as __________ form.
exclusive - OR, NOR
equivalence, exclusive - OR
AND, coincidence
OR, exclusive - OR
⇒ A feedback network to be used with an amplifier to provide oscillation is tested and found to give an output of 0.124 V with a 0.5 V input. What must be the minimum gain of the oscillator to provide oscillations?
40
60
100
130
⇒ Circuit switching, Message switching and Packet Switching Network belong to which of the following systems?
Computer communication system
Electromechanical communication system
PBX system
EPBX system
⇒ In pulse code modulation when the maximum frequency in the signal is f_{max} the bandwidth required will be
≤ p.f_{max}
≥ p.f_{max}
≤ (p.f_{max})^{2}
≥ (p.f_{max})^{2}
⇒ Electric breakdown strength of a material depends on its
composition
moisture content
thickness
all of the above
⇒ If f_{h}(t) is Hilbert transform of f(t), then Hilbert transform of f_{h}(t) is
-f(t)
+f(t)
f^{2}(t)
f(t)
⇒ In a 100% amplitude modulated signal, the power in the upper sideband when carrier power is to be 100 W and modulation system SSBSC, is
100 W
66 W
50 W
25 W
⇒ India's first domestic geostationary satellite 1NSAT-IA was launched on 10th April 1982 from
USSR
USA
UK
UP
⇒ A surface charge density of 8 nc/m^{2} is present on a plane x = z. A line charge density of 30 nC/m is present on line x = 1, y = 2 Find V_{AB} for points A(3, 4, 0) and B(4, 0, 1)
583.38 V
58.338 V
583.38 mV
58.338 mV
⇒ The decoder for PAL system is
similar to NTSC decoder
similar to NTSC decoder supplemented by 64 ms delay line
similar to NTSC decoder supplemented by 64 ms delay line and an electronic commutator
either (b) or (c)
⇒ Without a spectrum analyser, it is not possible to determine
carrier frequency
antenna pattern
pulse width
spurious signal strength and its location
⇒ For an RC admittance function Y, the slope dY/dσ
is positive
is negative
may be positive or negative
0
⇒ Inverse Fourier transform of '1' is
U(t)
δ(t)
0'
infinite
⇒ Mark the false statement:
since wave-shape of a digital signal is unimportant, linear amplifiers are not required
the precise amplitude of a digital signal is also unimportant provided two voltage levels (0 and 1) are quite different
the leading and trailing edges of a digital signal need not be sharp
actual digital waves have rise and fall times of the order of a few nano seconds
⇒ The logic function implemented by the following circuit at the terminal OU
P NOR Q
P NAND Q
P OR Q
P AND Q
⇒ Consider a 565 PLL with R_{T} = 10 kΩ and C_{T} = 0.01 μF. What is the output frequency of the VCO?
10 kHz
5 kHz
2.5 kHz
1.25 kHz
⇒ Antenna commonly used for microwave links are
loop antennas
log periodic antennas
paraboloidal dishes
rhombic antennas
⇒
Assertion (A): The steady state response, of a stable, linear, time invariant system, to sinusoidal input depends on initial conditions.
Reason (R): Frequency response, in steady state, is obtained by replacing s in the transfer function by jω
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
⇒ Henry is equivalent to
Volts/Ampere
Weber/Volt
Weber/Ampere
Weber/Ampere^{2}